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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
18,200 |
2112.00446
|
Santanu Maiti K.
|
Arpita Koley, Santanu K. Maiti
|
Magnetic response of interacting electrons in a spatially non-uniform
disordered multi-channel system: Exact and mean-field results
|
11 pages, 8 figures (Accepted for publication in The European
Physical Journal Plus)
| null | null | null |
cond-mat.mes-hall cond-mat.dis-nn cond-mat.mtrl-sci cond-mat.str-el quant-ph
|
http://creativecommons.org/licenses/by/4.0/
|
In this work we explore magnetic response of interacting electrons in a
spatially non-uniform disordered system, where impurities are introduced in one
sector of the geometry keeping the other one free. The interaction among the
electrons are taken in the well known Hubbard form which leads to several
anomalous features in energy spectra and flux driven circular current,
depending on the concentration of up and down spin electrons. For smaller
systems with less number of electrons we present exact results which always
give a clear picture to understand the basic mechanisms, while for large
systems having higher number of electrons mean-field results are given. The
effect of disorder is very interesting. Beyond a critical disorder, completely
contrasting signature is obtained compared to uniform disordered systems, and
the phenomenon becomes more promising when the Hubbard interaction is included.
Along with these features, we find unusual half flux-quantum periodic current
at some typical cases and a suitable explanation of it is provided. Our
detailed analysis may be utilized to study magnetic response of interacting
electrons in other similar kind of non-uniform disordered systems.
|
[{'version': 'v1', 'created': 'Wed, 1 Dec 2021 12:14:59 GMT'}]
|
2021-12-02
|
[array(['Koley', 'Arpita', ''], dtype=object)
array(['Maiti', 'Santanu K.', ''], dtype=object)]
|
18,201 |
1312.1026
|
Yuji Kato
|
Y. Kato, T. Iijima, I. Adachi, H. Aihara, D. M. Asner, T. Aushev, A.
M. Bakich, A. Bala, Y. Ban, V. Bhardwaj, B. Bhuyan, A. Bobrov, G. Bonvicini,
A. Bozek, M. Bra\v{c}ko, T. E. Browder, D. \v{C}ervenkov, V. Chekelian, A.
Chen, B. G. Cheon, K. Chilikin, R. Chistov, K. Cho, V. Chobanova, Y. Choi, D.
Cinabro, J. Dalseno, M. Danilov, Z. Dole\v{z}al, Z. Dr\'asal, A. Drutskoy, D.
Dutta, K. Dutta, S. Eidelman, H. Farhat, J. E. Fast, T. Ferber, V. Gaur, N.
Gabyshev, S. Ganguly, A. Garmash, R. Gillard, Y. M. Goh, B. Golob, J. Haba,
K. Hayasaka, H. Hayashii, X. H. He, Y. Horii, Y. Hoshi, W.-S. Hou, Y. B.
Hsiung, K. Inami, A. Ishikawa, Y. Iwasaki, T. Iwashita, I. Jaegle, T. Julius,
J. H. Kang, E. Kato, T. Kawasaki, C. Kiesling, D. Y. Kim, H. J. Kim, J. B.
Kim, J. H. Kim, M. J. Kim, Y. J. Kim, J. Klucar, B. R. Ko, P. Kody\v{s}, S.
Korpar, P. Krokovny, T. Kuhr, A. Kuzmin, Y.-J. Kwon, S.-H. Lee, J. Li, Y. Li,
L. Li Gioi, J. Libby, Y. Liu, D. Liventsev, D. Matvienko, K. Miyabayashi, H.
Miyata, R. Mizuk, A. Moll, N. Muramatsu, R. Mussa, Y. Nagasaka, E. Nakano, M.
Nakao, M. Nayak, E. Nedelkovska, C. Ng, M. Niiyama, N. K. Nisar, S. Nishida,
O. Nitoh, S. Ogawa, S. Okuno, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park,
H. K. Park, T. K. Pedlar, T. Peng, R. Pestotnik, M. Petri\v{c}, L. E.
Piilonen, M. Ritter, M. R\"ohrken, A. Rostomyan, H. Sahoo, T. Saito, Y.
Sakai, S. Sandilya, L. Santelj, T. Sanuki, V. Savinov, O. Schneider, G.
Schnell, C. Schwanda, D. Semmler, K. Senyo, O. Seon, M. Shapkin, C. P. Shen,
T.-A. Shibata, J.-G. Shiu, B. Shwartz, A. Sibidanov, Y.-S. Sohn, A. Sokolov,
E. Solovieva, S. Stani\v{c}, M. Stari\v{c}, M. Steder, M. Sumihama, T.
Sumiyoshi, U. Tamponi, K. Tanida, G. Tatishvili, Y. Teramoto, M. Uchida, S.
Uehara, T. Uglov, Y. Unno, S. Uno, C. Van Hulse, P. Vanhoefer, G. Varner, A.
Vinokurova, V. Vorobyev, M. N. Wagner, C. H. Wang, M.-Z. Wang, P. Wang, M.
Watanabe, Y. Watanabe, K. M. Williams, E. Won, Y. Yamashita, S. Yashchenko,
Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc
|
Search for doubly charmed baryons and study of charmed strange baryons
at Belle
|
14 pages, 7 figures, PRD
| null |
10.1103/PhysRevD.89.052003
|
Belle Preprint 2013-29, KEK Preprint 2013-57
|
hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report results of a study of doubly charmed baryons and charmed strange
baryons. The analysis is performed using a 980 fb^-1 data sample collected with
the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We search for
doubly charmed baryons Xi_cc^+(+) with the Lambda_c^+K^-pi^+(pi^+) and
Xi_c^0pi^+(pi^+) final states. No significant signal is observed. We also
search for two excited charmed strange baryons, Xi_c(3055)^+ and Xi_c(3123)^+
with the Sigma_c^++(2455)K^- and Sigma_c^++(2520)K^- final states. The
Xi_c(3055)^+ signal is observed with a significance of 6.6 standard deviations
including systematic uncertainty, while no signature of the Xi_c(3123)^+ is
seen. We also study properties of the Xi_c(2645)^+ and measure a width of 2.6
+- 0.2 (stat) +- 0.4 (syst) MeV/c^2, which is the first significant
determination.
|
[{'version': 'v1', 'created': 'Wed, 4 Dec 2013 05:35:40 GMT'}
{'version': 'v2', 'created': 'Sat, 8 Feb 2014 07:24:15 GMT'}]
|
2015-06-18
|
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array(['Chen', 'A.', ''], dtype=object)
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array(['Chilikin', 'K.', ''], dtype=object)
array(['Chistov', 'R.', ''], dtype=object)
array(['Cho', 'K.', ''], dtype=object)
array(['Chobanova', 'V.', ''], dtype=object)
array(['Choi', 'Y.', ''], dtype=object)
array(['Cinabro', 'D.', ''], dtype=object)
array(['Dalseno', 'J.', ''], dtype=object)
array(['Danilov', 'M.', ''], dtype=object)
array(['Doležal', 'Z.', ''], dtype=object)
array(['Drásal', 'Z.', ''], dtype=object)
array(['Drutskoy', 'A.', ''], dtype=object)
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array(['Dutta', 'K.', ''], dtype=object)
array(['Eidelman', 'S.', ''], dtype=object)
array(['Farhat', 'H.', ''], dtype=object)
array(['Fast', 'J. E.', ''], dtype=object)
array(['Ferber', 'T.', ''], dtype=object)
array(['Gaur', 'V.', ''], dtype=object)
array(['Gabyshev', 'N.', ''], dtype=object)
array(['Ganguly', 'S.', ''], dtype=object)
array(['Garmash', 'A.', ''], dtype=object)
array(['Gillard', 'R.', ''], dtype=object)
array(['Goh', 'Y. M.', ''], dtype=object)
array(['Golob', 'B.', ''], dtype=object)
array(['Haba', 'J.', ''], dtype=object)
array(['Hayasaka', 'K.', ''], dtype=object)
array(['Hayashii', 'H.', ''], dtype=object)
array(['He', 'X. H.', ''], dtype=object)
array(['Horii', 'Y.', ''], dtype=object)
array(['Hoshi', 'Y.', ''], dtype=object)
array(['Hou', 'W. -S.', ''], dtype=object)
array(['Hsiung', 'Y. B.', ''], dtype=object)
array(['Inami', 'K.', ''], dtype=object)
array(['Ishikawa', 'A.', ''], dtype=object)
array(['Iwasaki', 'Y.', ''], dtype=object)
array(['Iwashita', 'T.', ''], dtype=object)
array(['Jaegle', 'I.', ''], dtype=object)
array(['Julius', 'T.', ''], dtype=object)
array(['Kang', 'J. H.', ''], dtype=object)
array(['Kato', 'E.', ''], dtype=object)
array(['Kawasaki', 'T.', ''], dtype=object)
array(['Kiesling', 'C.', ''], dtype=object)
array(['Kim', 'D. Y.', ''], dtype=object)
array(['Kim', 'H. J.', ''], dtype=object)
array(['Kim', 'J. B.', ''], dtype=object)
array(['Kim', 'J. H.', ''], dtype=object)
array(['Kim', 'M. J.', ''], dtype=object)
array(['Kim', 'Y. J.', ''], dtype=object)
array(['Klucar', 'J.', ''], dtype=object)
array(['Ko', 'B. R.', ''], dtype=object)
array(['Kodyš', 'P.', ''], dtype=object)
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array(['Kuzmin', 'A.', ''], dtype=object)
array(['Kwon', 'Y. -J.', ''], dtype=object)
array(['Lee', 'S. -H.', ''], dtype=object)
array(['Li', 'J.', ''], dtype=object)
array(['Li', 'Y.', ''], dtype=object)
array(['Gioi', 'L. Li', ''], dtype=object)
array(['Libby', 'J.', ''], dtype=object)
array(['Liu', 'Y.', ''], dtype=object)
array(['Liventsev', 'D.', ''], dtype=object)
array(['Matvienko', 'D.', ''], dtype=object)
array(['Miyabayashi', 'K.', ''], dtype=object)
array(['Miyata', 'H.', ''], dtype=object)
array(['Mizuk', 'R.', ''], dtype=object)
array(['Moll', 'A.', ''], dtype=object)
array(['Muramatsu', 'N.', ''], dtype=object)
array(['Mussa', 'R.', ''], dtype=object)
array(['Nagasaka', 'Y.', ''], dtype=object)
array(['Nakano', 'E.', ''], dtype=object)
array(['Nakao', 'M.', ''], dtype=object)
array(['Nayak', 'M.', ''], dtype=object)
array(['Nedelkovska', 'E.', ''], dtype=object)
array(['Ng', 'C.', ''], dtype=object)
array(['Niiyama', 'M.', ''], dtype=object)
array(['Nisar', 'N. K.', ''], dtype=object)
array(['Nishida', 'S.', ''], dtype=object)
array(['Nitoh', 'O.', ''], dtype=object)
array(['Ogawa', 'S.', ''], dtype=object)
array(['Okuno', 'S.', ''], dtype=object)
array(['Pakhlov', 'P.', ''], dtype=object)
array(['Pakhlova', 'G.', ''], dtype=object)
array(['Park', 'C. W.', ''], dtype=object)
array(['Park', 'H.', ''], dtype=object)
array(['Park', 'H. K.', ''], dtype=object)
array(['Pedlar', 'T. K.', ''], dtype=object)
array(['Peng', 'T.', ''], dtype=object)
array(['Pestotnik', 'R.', ''], dtype=object)
array(['Petrič', 'M.', ''], dtype=object)
array(['Piilonen', 'L. E.', ''], dtype=object)
array(['Ritter', 'M.', ''], dtype=object)
array(['Röhrken', 'M.', ''], dtype=object)
array(['Rostomyan', 'A.', ''], dtype=object)
array(['Sahoo', 'H.', ''], dtype=object)
array(['Saito', 'T.', ''], dtype=object)
array(['Sakai', 'Y.', ''], dtype=object)
array(['Sandilya', 'S.', ''], dtype=object)
array(['Santelj', 'L.', ''], dtype=object)
array(['Sanuki', 'T.', ''], dtype=object)
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array(['Schnell', 'G.', ''], dtype=object)
array(['Schwanda', 'C.', ''], dtype=object)
array(['Semmler', 'D.', ''], dtype=object)
array(['Senyo', 'K.', ''], dtype=object)
array(['Seon', 'O.', ''], dtype=object)
array(['Shapkin', 'M.', ''], dtype=object)
array(['Shen', 'C. P.', ''], dtype=object)
array(['Shibata', 'T. -A.', ''], dtype=object)
array(['Shiu', 'J. -G.', ''], dtype=object)
array(['Shwartz', 'B.', ''], dtype=object)
array(['Sibidanov', 'A.', ''], dtype=object)
array(['Sohn', 'Y. -S.', ''], dtype=object)
array(['Sokolov', 'A.', ''], dtype=object)
array(['Solovieva', 'E.', ''], dtype=object)
array(['Stanič', 'S.', ''], dtype=object)
array(['Starič', 'M.', ''], dtype=object)
array(['Steder', 'M.', ''], dtype=object)
array(['Sumihama', 'M.', ''], dtype=object)
array(['Sumiyoshi', 'T.', ''], dtype=object)
array(['Tamponi', 'U.', ''], dtype=object)
array(['Tanida', 'K.', ''], dtype=object)
array(['Tatishvili', 'G.', ''], dtype=object)
array(['Teramoto', 'Y.', ''], dtype=object)
array(['Uchida', 'M.', ''], dtype=object)
array(['Uehara', 'S.', ''], dtype=object)
array(['Uglov', 'T.', ''], dtype=object)
array(['Unno', 'Y.', ''], dtype=object)
array(['Uno', 'S.', ''], dtype=object)
array(['Van Hulse', 'C.', ''], dtype=object)
array(['Vanhoefer', 'P.', ''], dtype=object)
array(['Varner', 'G.', ''], dtype=object)
array(['Vinokurova', 'A.', ''], dtype=object)
array(['Vorobyev', 'V.', ''], dtype=object)
array(['Wagner', 'M. N.', ''], dtype=object)
array(['Wang', 'C. H.', ''], dtype=object)
array(['Wang', 'M. -Z.', ''], dtype=object)
array(['Wang', 'P.', ''], dtype=object)
array(['Watanabe', 'M.', ''], dtype=object)
array(['Watanabe', 'Y.', ''], dtype=object)
array(['Williams', 'K. M.', ''], dtype=object)
array(['Won', 'E.', ''], dtype=object)
array(['Yamashita', 'Y.', ''], dtype=object)
array(['Yashchenko', 'S.', ''], dtype=object)
array(['Zhang', 'Z. P.', ''], dtype=object)
array(['Zhilich', 'V.', ''], dtype=object)
array(['Zhulanov', 'V.', ''], dtype=object)
array(['Zupanc', 'A.', ''], dtype=object)]
|
18,202 |
quant-ph/9902053
|
Andris Ambainis
|
Andris Ambainis
|
A better lower bound for quantum algorithms searching an ordered list
|
10 pages, LaTeX
| null | null | null |
quant-ph cs.CC cs.DS
| null |
We show that any quantum algorithm searching an ordered list of n elements
needs to examine at least 1/12 log n-O(1) of them. Classically, log n queries
are both necessary and sufficient. This shows that quantum algorithms can
achieve only a constant speedup for this problem. Our result improves lower
bounds of Buhrman and de Wolf(quant-ph/9811046) and Farhi, Goldstone, Gutmann
and Sipser (quant-ph/9812057).
|
[{'version': 'v1', 'created': 'Sun, 14 Feb 1999 01:20:11 GMT'}]
|
2007-05-23
|
[array(['Ambainis', 'Andris', ''], dtype=object)]
|
18,203 |
1211.2386
|
Mohamed Labib Borham
|
Mohamed Labib Borham, Mostafa Sami Mostafa, Hossam Eldeen Moustafa
Shamardan
|
MDSA: Modified Distributed Storage Algorithm for Wireless Sensor
Networks
|
5 pages, 9 figures. arXiv admin note: text overlap with
arXiv:1201.0178, arXiv:1011.2795, arXiv:0902.1278, arXiv:0908.4419 by other
authors
|
International Journal of Advanced Computer Science and
Applications (IJACSA),Vol. 3, No. 10, 2012
| null | null |
cs.NI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we propose a Modified distributed storage algorithm for
wireless sensor networks (MDSA). Wireless Sensor Networks, as it is well known,
suffer of power limitation, small memory capacity,and limited processing
capabilities. Therefore, every node may disappear temporarily or permanently
from the network due to many different reasons such as battery failure or
physical damage. Since every node collects significant data about its region,
it is important to find a methodology to recover these data in case of failure
of the source node. Distributed storage algorithms provide reliable access to
data through the redundancy spread over individual unreliable nodes. The
proposed algorithm uses flooding to spread data over the network and unicasting
to provide controlled data redundancy through the network. We evaluate the
performance of the proposed algorithm through implementation and simulation. We
show the results and the performance evaluation of the proposed algorithm.
|
[{'version': 'v1', 'created': 'Sun, 11 Nov 2012 09:05:14 GMT'}]
|
2012-11-13
|
[array(['Borham', 'Mohamed Labib', ''], dtype=object)
array(['Mostafa', 'Mostafa Sami', ''], dtype=object)
array(['Shamardan', 'Hossam Eldeen Moustafa', ''], dtype=object)]
|
18,204 |
0810.4325
|
Scott Pratt
|
Joshua Vredevoogd and Scott Pratt
|
Universal Flow in the First Stage of Relativistic Heavy Ion Collisions
|
9 pages, 2 figures
|
Phys.Rev.C79:044915,2009
|
10.1103/PhysRevC.79.044915
| null |
nucl-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In the first moments of a relativistic heavy ion collision explosive
collective flow begins to grow before the matter has yet equilibrated. Here it
is found that as long as the stress-energy tensor is traceless, early flow is
independent of whether the matter is composed of fields or particles,
equilibrated or not, or whether the stress-energy tensor is isotropic. This
eliminates much of the uncertainty in modeling early stages of a collision.
|
[{'version': 'v1', 'created': 'Thu, 23 Oct 2008 19:31:43 GMT'}]
|
2009-12-31
|
[array(['Vredevoogd', 'Joshua', ''], dtype=object)
array(['Pratt', 'Scott', ''], dtype=object)]
|
18,205 |
0911.0664
|
Aaron Potechin
|
Aaron Potechin
|
Bounds on monotone switching networks for directed connectivity
|
49 pages, 12 figures
| null | null | null |
cs.CC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We separate monotone analogues of L and NL by proving that any monotone
switching network solving directed connectivity on $n$ vertices must have size
at least $n^(\Omega(\lg(n)))$.
|
[{'version': 'v1', 'created': 'Tue, 3 Nov 2009 20:10:05 GMT'}
{'version': 'v2', 'created': 'Thu, 17 Dec 2009 22:40:59 GMT'}
{'version': 'v3', 'created': 'Sat, 14 Aug 2010 06:07:27 GMT'}
{'version': 'v4', 'created': 'Sun, 27 Nov 2011 19:34:27 GMT'}
{'version': 'v5', 'created': 'Fri, 30 Nov 2012 15:01:57 GMT'}
{'version': 'v6', 'created': 'Sat, 30 Nov 2013 19:28:33 GMT'}
{'version': 'v7', 'created': 'Tue, 29 Nov 2016 21:05:30 GMT'}]
|
2016-12-01
|
[array(['Potechin', 'Aaron', ''], dtype=object)]
|
18,206 |
1004.3034
|
Alice Publications
|
ALICE Collaboration
|
Charged-particle multiplicity measurement in proton-proton collisions at
$\sqrt{s}$ = 0.9 and 2.36 TeV with ALICE at LHC
|
20 pages, 12 captioned figures, 4 tables, published version, figures
at http://aliceinfo.cern.ch/ArtSubmission/node/3903
|
Eur. Phys. J. C 68 (2010) 89-108
|
10.1140/epjc/s10052-010-1339-x
| null |
hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Charged-particle production was studied in proton-proton collisions collected
at the LHC with the ALICE detector at centre-of-mass energies 0.9 TeV and 2.36
TeV in the pseudorapidity range |$\eta$| < 1.4. In the central region (|$\eta$|
< 0.5), at 0.9 TeV, we measure charged-particle pseudorapidity density
dNch/deta = 3.02 $\pm$ 0.01 (stat.) $^{+0.08}_{-0.05}$ (syst.) for inelastic
interactions, and dNch/deta = 3.58 $\pm$ 0.01 (stat.) $^{+0.12}_{-0.12}$
(syst.) for non-single-diffractive interactions. At 2.36 TeV, we find dNch/deta
= 3.77 $\pm$ 0.01 (stat.) $^{+0.25}_{-0.12}$ (syst.) for inelastic, and
dNch/deta = 4.43 $\pm$ 0.01 (stat.) $^{+0.17}_{-0.12}$ (syst.) for
non-single-diffractive collisions. The relative increase in charged-particle
multiplicity from the lower to higher energy is 24.7% $\pm$ 0.5% (stat.)
$^{+5.7}_{-2.8}$% (syst.) for inelastic and 23.7% $\pm$ 0.5% (stat.)
$^{+4.6}_{-1.1}$% (syst.) for non-single-diffractive interactions. This
increase is consistent with that reported by the CMS collaboration for
non-single-diffractive events and larger than that found by a number of
commonly used models. The multiplicity distribution was measured in different
pseudorapidity intervals and studied in terms of KNO variables at both
energies. The results are compared to proton-antiproton data and to model
predictions.
|
[{'version': 'v1', 'created': 'Sun, 18 Apr 2010 16:00:37 GMT'}
{'version': 'v2', 'created': 'Thu, 6 May 2010 14:01:51 GMT'}
{'version': 'v3', 'created': 'Thu, 28 Sep 2017 21:06:46 GMT'}]
|
2017-10-02
|
[array(['ALICE Collaboration', '', ''], dtype=object)]
|
18,207 |
2001.04145
|
Maurizio Salaris Prof.
|
Maurizio Salaris (1), Chris Usher (1), Silvia Martocchia (1,2),
Emanuele Dalessandro (3), Nate Bastian (1), Sara Saracino (1), Santi Cassisi
(4,5) Ivan Cabrera-Ziri (6), Carmela Lardo (7) (1, Astrophysics Research
Institute, Liverpool John Moores University, UK - 2, European Southern
Observatory, D - 3, INAF-Osservatorio di Astrofisica e Scienza dello Spazio
di Bologna, I - 4, INAF-Osservatorio Astronomico d'Abruzzo, I - 5, INFN -
Sezione di Pisa, I - 6, Harvard-Smithsonian Center for Astrophysics, USA - 7,
EPFL, Versoix, CH)
|
Photometric characterization of multiple populations in star clusters:
The impact of the first dredge-up
|
7 pages, 6 figures, MNRAS in press
| null |
10.1093/mnras/staa089
| null |
astro-ph.GA astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The existence of star-to-star light-element abundance variations (multiple
populations, MPs) in massive Galactic and extragalactic star clusters older
than about 2 Gyr is by now well established. Photometry of red giant branch
(RGB) stars has been and still is instrumental in enabling the detection and
characterization of cluster MPs, through the appropriate choices of filters,
colours and colour combinations, that are mainly sensitive to N and --to a
lesser degree-- C stellar surface abundances. An important issue not yet
properly addressed is that the translation of the observed widths of the
cluster RGBs to abundance spreads must account for the effect of the first
dredge-up on the surface chemical patterns, hence on the spectral energy
distributions of stars belonging to the various MPs. We have filled this gap by
studying theoretically the impact of the dredge-up on the predicted widths of
RGBs in clusters hosting MPs. We find that for a given initial range of N
abundances, the first dredge up reduces the predicted RGB widths in N-sensitive
filters compared to the case when its effect on the stellar spectral energy
distributions is not accounted for. This reduction is a strong function of age
and has also a dependence on metallicity. The net effect is an underestimate of
the initial N-abundance ranges from RGB photometry if the first dredge-up is
not accounted for in the modelling, and also the potential determination of
spurious trends of N-abundance spreads with age.
|
[{'version': 'v1', 'created': 'Mon, 13 Jan 2020 10:34:54 GMT'}]
|
2020-01-22
|
[array(['Salaris', 'Maurizio', ''], dtype=object)
array(['Usher', 'Chris', ''], dtype=object)
array(['Martocchia', 'Silvia', ''], dtype=object)
array(['Dalessandro', 'Emanuele', ''], dtype=object)
array(['Bastian', 'Nate', ''], dtype=object)
array(['Saracino', 'Sara', ''], dtype=object)
array(['Cassisi', 'Santi', ''], dtype=object)
array(['Cabrera-Ziri', 'Ivan', ''], dtype=object)
array(['Lardo', 'Carmela', ''], dtype=object)]
|
18,208 |
2211.03216
|
Chao Pan
|
Chao Pan, Eli Chien, Olgica Milenkovic
|
Unlearning Graph Classifiers with Limited Data Resources
|
12 pages. WWW 2023
| null | null | null |
cs.LG cs.CR
|
http://creativecommons.org/licenses/by-sa/4.0/
|
As the demand for user privacy grows, controlled data removal (machine
unlearning) is becoming an important feature of machine learning models for
data-sensitive Web applications such as social networks and recommender
systems. Nevertheless, at this point it is still largely unknown how to perform
efficient machine unlearning of graph neural networks (GNNs); this is
especially the case when the number of training samples is small, in which case
unlearning can seriously compromise the performance of the model. To address
this issue, we initiate the study of unlearning the Graph Scattering Transform
(GST), a mathematical framework that is efficient, provably stable under
feature or graph topology perturbations, and offers graph classification
performance comparable to that of GNNs. Our main contribution is the first
known nonlinear approximate graph unlearning method based on GSTs. Our second
contribution is a theoretical analysis of the computational complexity of the
proposed unlearning mechanism, which is hard to replicate for deep neural
networks. Our third contribution are extensive simulation results which show
that, compared to complete retraining of GNNs after each removal request, the
new GST-based approach offers, on average, a 10.38x speed-up and leads to a
2.6% increase in test accuracy during unlearning of 90 out of 100 training
graphs from the IMDB dataset (10% training ratio). Our implementation is
available online at https://doi.org/10.5281/zenodo.7613150.
|
[{'version': 'v1', 'created': 'Sun, 6 Nov 2022 20:46:50 GMT'}
{'version': 'v2', 'created': 'Sat, 1 Jul 2023 04:05:49 GMT'}]
|
2023-07-04
|
[array(['Pan', 'Chao', ''], dtype=object)
array(['Chien', 'Eli', ''], dtype=object)
array(['Milenkovic', 'Olgica', ''], dtype=object)]
|
18,209 |
2206.06768
|
Claudio Andrea Manzari
|
Claudio Andrea Manzari and Stefano Profumo
|
A Flavour Inspired Model for Dark Matter
|
11 pages, 4 figures and 1 table
| null | null |
ZU-TH 23/22, PSI-PR-22-15
|
hep-ph astro-ph.CO astro-ph.HE
|
http://creativecommons.org/licenses/by/4.0/
|
The discrepancies between data on rare $b$-hadron decays, controlled by the
underlying neutral-current transitions $b\to s\ell^+\ell^- (\ell = e, \mu)$,
and the corresponding Standard Model predictions constitute one of the most
intriguing hints for new physics. Leptoquarks are prime candidates to solve
these anomalies and, in particular, the scalar leptoquark, $S_3$, triplet under
$SU(2)_L$ with hypercharge $Y=-1/3$, provides a very good fit to data. Here,
for the first time, we entertain the possibility that the same scalar
leptoquark, responsible for the LFU anomalies, is the portal to a dark sector
consisting of two additional vector-like fermions, one of which is a candidate
for the cosmological dark matter. We study two scenarios, where the dark matter
candidate belongs to an $SU(2)_L$ singlet and triplet respectively, and discuss
the theory parameter space in the context of the dark matter candidate's relic
density and prospects for direct and indirect dark matter searches. Direct
detection rates are highly suppressed, and generically below the neutrino
floor. Current observations with, and future prospects for, high-energy
gamma-ray telescopes such as HESS and the Cherenkov Telescope Array are much
more promising, as they already provide powerful constraints on the models
under consideration, and will potentially probe the full parameter space in the
future.
|
[{'version': 'v1', 'created': 'Tue, 14 Jun 2022 12:00:53 GMT'}]
|
2022-06-15
|
[array(['Manzari', 'Claudio Andrea', ''], dtype=object)
array(['Profumo', 'Stefano', ''], dtype=object)]
|
18,210 |
2205.12179
|
Jiaqian Ren
|
Jiaqian Ren, Lei Jiang, Hao Peng, Zhiwei Liu, Jia Wu, Philip S. Yu
|
Evidential Temporal-aware Graph-based Social Event Detection via
Dempster-Shafer Theory
|
Accepted by ICWS2022
| null | null | null |
cs.AI
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
The rising popularity of online social network services has attracted lots of
research on mining social media data, especially on mining social events.
Social event detection, due to its wide applications, has now become a trivial
task. State-of-the-art approaches exploiting Graph Neural Networks (GNNs)
usually follow a two-step strategy: 1) constructing text graphs based on
various views (\textit{co-user}, \textit{co-entities} and
\textit{co-hashtags}); and 2) learning a unified text representation by a
specific GNN model. Generally, the results heavily rely on the quality of the
constructed graphs and the specific message passing scheme. However, existing
methods have deficiencies in both aspects: 1) They fail to recognize the noisy
information induced by unreliable views. 2) Temporal information which works as
a vital indicator of events is neglected in most works. To this end, we propose
ETGNN, a novel Evidential Temporal-aware Graph Neural Network. Specifically, we
construct view-specific graphs whose nodes are the texts and edges are
determined by several types of shared elements respectively. To incorporate
temporal information into the message passing scheme, we introduce a novel
temporal-aware aggregator which assigns weights to neighbours according to an
adaptive time exponential decay formula. Considering the view-specific
uncertainty, the representations of all views are converted into mass functions
through evidential deep learning (EDL) neural networks, and further combined
via Dempster-Shafer theory (DST) to make the final detection. Experimental
results on three real-world datasets demonstrate the effectiveness of ETGNN in
accuracy, reliability and robustness in social event detection.
|
[{'version': 'v1', 'created': 'Tue, 24 May 2022 16:22:40 GMT'}]
|
2022-05-25
|
[array(['Ren', 'Jiaqian', ''], dtype=object)
array(['Jiang', 'Lei', ''], dtype=object)
array(['Peng', 'Hao', ''], dtype=object)
array(['Liu', 'Zhiwei', ''], dtype=object)
array(['Wu', 'Jia', ''], dtype=object)
array(['Yu', 'Philip S.', ''], dtype=object)]
|
18,211 |
1512.08754
|
Lawrence Smolinsky
|
Lawrence Smolinsky
|
Discrete power law with exponential cutoff and Lotka's Law
|
11 pages
|
Journal of Informetrics 13 (2019) 462-463
|
10.1016/j.joi.2019.02.005
| null |
cs.DL physics.data-an
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The first bibliometric law appeared in Alfred J. Lotka's 1926 examination of
author productivity in chemistry and physics. The result is that the
productivity distribution is thought to be described by a power law. In this
paper, Lotka's original data on author productivity in chemistry is
reconsidered by comparing the fit of the data to both a discrete power law and
a discrete power law with exponential cutoff.
|
[{'version': 'v1', 'created': 'Tue, 29 Dec 2015 18:59:38 GMT'}]
|
2020-05-14
|
[array(['Smolinsky', 'Lawrence', ''], dtype=object)]
|
18,212 |
2208.11283
|
Wei Chen
|
Wei Chen, Jinglong Du, Zhao Zhang, Fuzhen Zhuang, Zhongshi He
|
A Hierarchical Interactive Network for Joint Span-based Aspect-Sentiment
Analysis
|
To be published at COLING 2022
| null | null | null |
cs.CL
|
http://creativecommons.org/licenses/by/4.0/
|
Recently, some span-based methods have achieved encouraging performances for
joint aspect-sentiment analysis, which first extract aspects (aspect
extraction) by detecting aspect boundaries and then classify the span-level
sentiments (sentiment classification). However, most existing approaches either
sequentially extract task-specific features, leading to insufficient feature
interactions, or they encode aspect features and sentiment features in a
parallel manner, implying that feature representation in each task is largely
independent of each other except for input sharing. Both of them ignore the
internal correlations between the aspect extraction and sentiment
classification. To solve this problem, we novelly propose a hierarchical
interactive network (HI-ASA) to model two-way interactions between two tasks
appropriately, where the hierarchical interactions involve two steps:
shallow-level interaction and deep-level interaction. First, we utilize
cross-stitch mechanism to combine the different task-specific features
selectively as the input to ensure proper two-way interactions. Second, the
mutual information technique is applied to mutually constrain learning between
two tasks in the output layer, thus the aspect input and the sentiment input
are capable of encoding features of the other task via backpropagation.
Extensive experiments on three real-world datasets demonstrate HI-ASA's
superiority over baselines.
|
[{'version': 'v1', 'created': 'Wed, 24 Aug 2022 03:03:49 GMT'}]
|
2022-08-25
|
[array(['Chen', 'Wei', ''], dtype=object)
array(['Du', 'Jinglong', ''], dtype=object)
array(['Zhang', 'Zhao', ''], dtype=object)
array(['Zhuang', 'Fuzhen', ''], dtype=object)
array(['He', 'Zhongshi', ''], dtype=object)]
|
18,213 |
2003.09766
|
Pengfei Zhang
|
Pengfei Zhang, Chunxiao Liu and Xiao Chen
|
Subsystem R\'enyi Entropy of Thermal Ensembles for SYK-like models
|
20 pages, 4 figures
|
SciPost Phys. 8, 094 (2020)
|
10.21468/SciPostPhys.8.6.094
| null |
cond-mat.str-el quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The Sachdev-Ye-Kitaev model is an $N$-modes fermionic model with infinite
range random interactions. In this work, we study the thermal R\'enyi entropy
for a subsystem of the SYK model using the path-integral formalism in the
large-$N$ limit. The results are consistent with exact diagonalization [1] and
can be well approximated by thermal entropy with an effective temperature [2]
when subsystem size $M\leq N/2$. We also consider generalizations of the SYK
model with quadratic random hopping term or $U(1)$ charge conservation.
|
[{'version': 'v1', 'created': 'Sat, 21 Mar 2020 23:06:47 GMT'}
{'version': 'v2', 'created': 'Tue, 24 Mar 2020 23:29:57 GMT'}]
|
2020-07-01
|
[array(['Zhang', 'Pengfei', ''], dtype=object)
array(['Liu', 'Chunxiao', ''], dtype=object)
array(['Chen', 'Xiao', ''], dtype=object)]
|
18,214 |
2305.00063
|
Luzhou Zhang
|
Luzhou Zhang
|
Applications of Computer Vision in Analysis of the Clock-Drawing Test as
a Metric of Cognitive Impairment
|
5 pages, 3 figures
| null | null | null |
q-bio.NC q-bio.QM
|
http://creativecommons.org/licenses/by/4.0/
|
The Clock-Drawing test is a well known and widely used neuropsychological
metric to assess basic cognitive function. My objective is to combine methods
of machine learning in computer vision and image analysis to predict a
subject's level of cognitive impairment.
|
[{'version': 'v1', 'created': 'Wed, 26 Apr 2023 18:04:39 GMT'}]
|
2023-05-02
|
[array(['Zhang', 'Luzhou', ''], dtype=object)]
|
18,215 |
2210.17248
|
Zakaria Dahbi
|
Zakaria Dahbi, Mansoura Oumennana, Mostafa Mansour
|
Intrinsic decoherence effects on correlated coherence and quantum
discord in XXZ Heisenberg model
| null |
Optical and Quantum Electronics 2023
|
10.1007/s11082-023-04604-3
| null |
quant-ph
|
http://creativecommons.org/licenses/by/4.0/
|
Spin qubits are at the heart of technological advances in quantum processors
and offer an excellent framework for quantum information processing. This work
characterizes the time evolution of coherence and nonclassical correlations in
a two-spin XXZ Heisenberg model, from which a two-qubit system is realized. We
study the effects of intrinsic decoherence on coherence (correlated coherence)
and nonclassical correlations (quantum discord), taking into consideration the
combined impact of an external magnetic field, Dzyaloshinsky-Moriya (DM) and
Kaplan Shekhtman Entin-Wohlman-Aharony (KSEA) interactions. To fully understand
the effects of intrinsic decoherence, we suppose that the system can be
prepared in one of the two well-known extended Werner-like (EWL) states. The
findings show that intrinsic decoherence leads the coherence and quantum
correlations to decay and that the behavior of the aforementioned quantum
resources relies strongly on the initial EWL state parameters. We, likewise,
found that the two-spin correlated coherence and quantum discord; become more
robust against intrinsic decoherence depending on the type of the initial
state. These outcomes shed light on how a quantum system should be engineered
to achieve quantum advantages.
|
[{'version': 'v1', 'created': 'Mon, 31 Oct 2022 12:10:33 GMT'}
{'version': 'v2', 'created': 'Wed, 9 Nov 2022 13:05:09 GMT'}]
|
2023-04-13
|
[array(['Dahbi', 'Zakaria', ''], dtype=object)
array(['Oumennana', 'Mansoura', ''], dtype=object)
array(['Mansour', 'Mostafa', ''], dtype=object)]
|
18,216 |
1401.0986
|
Qi Guo
|
Qi Guo, Cedric Lacey, Peder Norberg, Shaun Cole, Carlton Baugh, Carlos
Frenk, Asantha Cooray, Simon Dye, N. Bourne, L. Dunne, S. Eales, R.J. Ivison,
S.J. Maddox, M. Alpasan, I. Baldry, S.P. Driver, A. Robotham
|
Herschel-ATLAS/GAMA:How does the far-IR luminosity function depend on
galaxy group properties?
|
19 pages, accepted version (MNRAS)
| null |
10.1093/mnras/stu962
| null |
astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We use the Herschel ATLAS (H-ATLAS) Phase I data to study the conditional
luminosity function of far-IR (250 um) selected galaxies in optically-selected
galaxy groups from the GAMA spectroscopic survey, as well as environmental
effects on the far-IR-to-optical colour. We applied two methods, which gave
consistent results for the far-IR conditional luminosity functions. The direct
matching method matches H-ATLAS sources to GAMA/SDSS galaxies, then links the
optical counterparts to GAMA groups. The stacking method counts the number of
far-IR sources within the projected radii of GAMA groups, subtracting the local
background. We investigated the dependence of the far-IR (250 um) luminosity
function on group mass in the range 10d12 < M_h < 10d14Msun/h and on redshift
in the range 0 < z < 0.4, using a sample of 3000 groups containing H-ATLAS
sources with GAMA redshifts over an area of 126 sq. deg. We find that the
characteristic 250 um luminosity, L^*(250), increases with group mass up to M_h
~ 10d13Msun/h, but is roughly constant above this, while it increases with
redshift at high group masses, but less so at low masses. We also find that the
group far-IR luminosity-to-mass ratio L(250)/M_h increases with redshift and is
higher in low-mass groups. We estimate that around 70% of the 250 um luminosity
density in the local universe is contributed by groups with M_h > 10d12Msun/h.
We also find that the far-IR-to-optical colours of H-ATLAS galaxies are
independent of group mass over the range 10d12 < M_h <10d14Msun/h in the local
universe. We also compare our observational results with recent semi-analytical
models, and find that none of these galaxy formation model can reproduce the
conditional far-IR luminosity functions of galaxy groups.
|
[{'version': 'v1', 'created': 'Mon, 6 Jan 2014 05:11:30 GMT'}
{'version': 'v2', 'created': 'Fri, 4 Jul 2014 11:40:59 GMT'}]
|
2015-06-18
|
[array(['Guo', 'Qi', ''], dtype=object)
array(['Lacey', 'Cedric', ''], dtype=object)
array(['Norberg', 'Peder', ''], dtype=object)
array(['Cole', 'Shaun', ''], dtype=object)
array(['Baugh', 'Carlton', ''], dtype=object)
array(['Frenk', 'Carlos', ''], dtype=object)
array(['Cooray', 'Asantha', ''], dtype=object)
array(['Dye', 'Simon', ''], dtype=object)
array(['Bourne', 'N.', ''], dtype=object)
array(['Dunne', 'L.', ''], dtype=object)
array(['Eales', 'S.', ''], dtype=object)
array(['Ivison', 'R. J.', ''], dtype=object)
array(['Maddox', 'S. J.', ''], dtype=object)
array(['Alpasan', 'M.', ''], dtype=object)
array(['Baldry', 'I.', ''], dtype=object)
array(['Driver', 'S. P.', ''], dtype=object)
array(['Robotham', 'A.', ''], dtype=object)]
|
18,217 |
2107.12513
|
Roni Goldshmid
|
Roni H. Goldshmid, Ewelina Winiarska, and Dan Liberzon
|
Next generation combined sonic-hotfilm anemometer: wind alignment and
automated calibration procedure using deep learning
| null | null |
10.1007/s00348-022-03381-1
| null |
physics.flu-dyn
|
http://creativecommons.org/licenses/by/4.0/
|
The study of naturally occurring turbulent flows requires ability to collect
empirical data down to the fine scales. While hotwire anemometry offers such
ability, the open field studies are uncommon due to the cumbersome calibration
procedure and operational requirements of hotwire anemometry, e.g., constant
ambient properties and steady flow conditions. The combo probe-the combined
sonic-hotfilm anemometer developed and tested over the last decade-has
demonstrated its ability to overcome this hurdle. The old-er generation had a
limited wind alignment range of 120 degrees and the in-situ calibration
procedure was human decision based. This study presents the next generation of
the combo probe design, and the new fully automated in-situ calibration
procedure implementing deep learning. The elegant new design now enables
measurements of the incoming wind flow in a 360-degree range. The improved
calibration procedure is shown to have the robustness necessary for operation
in everchanging open field flow and environmental conditions. This is
especially useful with diurnally changing environments or non-stationary
measuring stations, i.e., probes placed on moving platforms like boats, drones,
and weather balloons. Together, the updated design and the new calibration
procedure, allow for continuous field measurements with minimal to no human
interaction, enabling near real-time monitoring of fine-scale turbulent
fluctuations. Integration of these probes will contribute toward generation of
a large pool of field data to be collected to unravel the intricacies of all
scales of turbulent flows occurring in natural setups.
|
[{'version': 'v1', 'created': 'Mon, 26 Jul 2021 23:17:42 GMT'}]
|
2022-09-07
|
[array(['Goldshmid', 'Roni H.', ''], dtype=object)
array(['Winiarska', 'Ewelina', ''], dtype=object)
array(['Liberzon', 'Dan', ''], dtype=object)]
|
18,218 |
cond-mat/0403007
|
Nan Lin Wang
|
N. L. Wang, G. H. Cao, P. Zheng, G. Li, Z. Fang, T. Xiang, H.
Kitazawa, and T. Matsumoto
|
Optical study of the metal-insulator transition in CuIr$_2$S$_4$
crystals
|
4 pages, 4 figures, to be published in Phys. Rev. B
|
Phys. Rev. B 69, 153104 (2004)
|
10.1103/PhysRevB.69.153104
| null |
cond-mat.str-el cond-mat.mtrl-sci
| null |
We present measurements of the optical spectra on single crystals of
spinel-type compound \cis. This material undergoes a sharp metal-insulator
transition at 230 K. Upon entering the insulating state, the optical
conductivity shows an abrupt spectral weight transfer and an optical excitation
gap opens. In the metallic phase, Drude components in low frequencies and an
interband transition peak at $\sim 2 eV$ are observed. In the insulating phase,
a new peak emerges around $0.5 eV$. This peak is attributed to the transition
of electrons from the occupied Ir$^{3+}$ $t_{2g}$ state to upper Ir$^{4+}$
$t_{2g}$ subband resulting from the dimerization of Ir$^{4+}$ ions in
association with the simultaneous formations of Ir$^{3+}$ and Ir$^{4+}$
octamers as recently revealed by the x-ray diffraction experiment. Our
experiments indicate that the band structure is reconstructed in the insulating
phase due to the sudden structural transition.
|
[{'version': 'v1', 'created': 'Sat, 28 Feb 2004 04:46:38 GMT'}]
|
2009-11-10
|
[array(['Wang', 'N. L.', ''], dtype=object)
array(['Cao', 'G. H.', ''], dtype=object)
array(['Zheng', 'P.', ''], dtype=object)
array(['Li', 'G.', ''], dtype=object)
array(['Fang', 'Z.', ''], dtype=object)
array(['Xiang', 'T.', ''], dtype=object)
array(['Kitazawa', 'H.', ''], dtype=object)
array(['Matsumoto', 'T.', ''], dtype=object)]
|
18,219 |
2205.07675
|
Hector Socas-Navarro
|
Hector Socas-Navarro
|
A candidate location for Planet Nine from an interstellar meteoroid: The
messenger hypothesis
|
Accepted for publication in ApJ
| null |
10.3847/1538-4357/acb817
| null |
astro-ph.EP
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
The existence of a hypothetical Planet 9 lurkng in the outer solar system has
been invoked as a plausible explanation for the anomalous clustering in the
orbits of trans-Neptunian objects. Here we propose that some meteoroids
arriving at Earth could serve as messengers with the potential of revealing the
presence of a hitherto undiscovered massive object. The peculiar meteor CNEOS
2014-01-08, recently put forward as the first interstellar meteor, might be one
such messenger. The meteor radiant is in the maximum probability region
calculated for the Planet 9 location in previous works. The odds of this
coincidence being due to chance are ~1%. Furthermore, some statistical
anomalies about CNEOS 2014-01-08 are resolved under the hypothesis that it was
flung at Earth by a gravitational encounter. Integrating its trajectory
backwards in time would then lead to the region of the sky where Planet 9 is
more likely to reside. Based on the available data, we propose the region at
coordinates R.A. 53.0 +/- 4.3 deg, declination 9.2 +/- 1.3 deg as a plausible
candidate location for Planet 9.
|
[{'version': 'v1', 'created': 'Mon, 16 May 2022 13:41:10 GMT'}
{'version': 'v2', 'created': 'Mon, 23 May 2022 14:02:31 GMT'}
{'version': 'v3', 'created': 'Sun, 25 Sep 2022 15:48:34 GMT'}
{'version': 'v4', 'created': 'Tue, 31 Jan 2023 15:18:34 GMT'}]
|
2023-03-08
|
[array(['Socas-Navarro', 'Hector', ''], dtype=object)]
|
18,220 |
2301.13185
|
Dani\"el Vos
|
Dani\"el Vos and Sicco Verwer
|
Optimal Decision Tree Policies for Markov Decision Processes
| null | null | null | null |
cs.AI cs.LG
|
http://creativecommons.org/licenses/by/4.0/
|
Interpretability of reinforcement learning policies is essential for many
real-world tasks but learning such interpretable policies is a hard problem.
Particularly rule-based policies such as decision trees and rules lists are
difficult to optimize due to their non-differentiability. While existing
techniques can learn verifiable decision tree policies there is no guarantee
that the learners generate a decision that performs optimally. In this work, we
study the optimization of size-limited decision trees for Markov Decision
Processes (MPDs) and propose OMDTs: Optimal MDP Decision Trees. Given a
user-defined size limit and MDP formulation OMDT directly maximizes the
expected discounted return for the decision tree using Mixed-Integer Linear
Programming. By training optimal decision tree policies for different MDPs we
empirically study the optimality gap for existing imitation learning techniques
and find that they perform sub-optimally. We show that this is due to an
inherent shortcoming of imitation learning, namely that complex policies cannot
be represented using size-limited trees. In such cases, it is better to
directly optimize the tree for expected return. While there is generally a
trade-off between the performance and interpretability of machine learning
models, we find that OMDTs limited to a depth of 3 often perform close to the
optimal limit.
|
[{'version': 'v1', 'created': 'Mon, 30 Jan 2023 18:51:02 GMT'}]
|
2023-01-31
|
[array(['Vos', 'Daniël', ''], dtype=object)
array(['Verwer', 'Sicco', ''], dtype=object)]
|
18,221 |
cond-mat/0311491
|
Ruben Serral Gracia
|
R. Serral Gracia, Th. M. Nieuwenhuizen and I. V. Lerner
|
Concentration dependence of the transition temperature in metallic spin
glasses
|
4 pages
|
EuroPhys. Lett. 66, 419 (2004)
|
10.1209/epl/i2003-10222-0
| null |
cond-mat.dis-nn
| null |
The dependence of the transition temperature $T_g$ in terms of the
concentration of magnetic impurities $c$ in spin glasses is explained on the
basis of a screened RKKY interaction. The two observed power laws, $T_g ~ c$ at
low $c$ and $T_g ~ c^{2/3}$ for intermediate $c$, are described in a unified
approach.
|
[{'version': 'v1', 'created': 'Thu, 20 Nov 2003 20:52:05 GMT'}]
|
2009-11-10
|
[array(['Gracia', 'R. Serral', ''], dtype=object)
array(['Nieuwenhuizen', 'Th. M.', ''], dtype=object)
array(['Lerner', 'I. V.', ''], dtype=object)]
|
18,222 |
2001.06249
|
Christian P. Robert
|
Christian P. Robert (U Paris Dauphine and U Warwick) and Wu Changye (U
Paris Dauphine)
|
Markov Chain Monte Carlo Methods, a survey with some frequent
misunderstandings
|
To appear in the Handbook of Computational Statistics, John Wiley &
Sons
| null | null | null |
stat.CO
|
http://creativecommons.org/licenses/by/4.0/
|
In this chapter, we review some of the most standard MCMC tools used in
Bayesian computation, along with vignettes on standard misunderstandings of
these approaches taken from Q \&~A's on the forum Cross-validated answered by
the first author.
|
[{'version': 'v1', 'created': 'Fri, 17 Jan 2020 11:48:52 GMT'}]
|
2020-01-20
|
[array(['Robert', 'Christian P.', '', 'U Paris Dauphine and U Warwick'],
dtype=object)
array(['Changye', 'Wu', '', 'U\n Paris Dauphine'], dtype=object)]
|
18,223 |
1911.02981
|
Stephen Godfrey
|
Stephen Godfrey and Alexandre Poulin (Carleton University)
|
Multi-component dark matter from a hidden gauged SU(3)
|
6 pages, 6 figures, Contributed talk to the XXIX International
Symposium on Lepton Photon Interactions at High Energies - LeptonPhoton2019.
More detailed version is given in arXiv:1808.04901 [hep-ph]
| null | null | null |
hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We studied Dark Matter (DM) phenomenology with multiple DM species consisting
of both scalar and vector DM particles in the Hidden Gauged SU(3) model of
Arcadi et al. Because of the large parameter space in the Hidden Gauged SU(3)
model we restrict ourselves to three representative benchmark points, each with
multiple DM species. The relic densities for the benchmark points were found
using a program developed to solve the coupled Boltzmann equations for an
arbitrary number of interacting DM species with two particles in the final
state. For each case, we varied the mass of the DM particles and then found the
value of the dark SU(3) gauge coupling that gave the correct relic density. We
found that in some regions of parameter space, DM would be difficult to observe
in direct detection experiments while it would be easier to observe in indirect
detection experiments while for other regions of parameter space the situation
was reversed. Thus, measurements from both types of experiments complement each
other and could help pinpoint the details of the hidden SU(3) model.
|
[{'version': 'v1', 'created': 'Fri, 8 Nov 2019 01:56:35 GMT'}]
|
2019-11-11
|
[array(['Godfrey', 'Stephen', '', 'Carleton University'], dtype=object)
array(['Poulin', 'Alexandre', '', 'Carleton University'], dtype=object)]
|
18,224 |
1206.4822
|
Sabeur Aridhi
|
Rabie Saidi, Sabeur Aridhi, Mondher Maddouri and Engelbert Mephu
Nguifo
|
Feature extraction in protein sequences classification : a new stability
measure
|
The paper has been accepted by the ACM Conference on Bioinformatics,
Computational Biology and Biomedicine (ACM BCB) 2012. We want to cancel the
submission because of the double entries of the paper in DBLP. Thank you for
your understanding
| null |
10.1145/2382936.2383060
| null |
cs.LG cs.CE q-bio.QM
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Feature extraction is an unavoidable task, especially in the critical step of
preprocessing biological sequences. This step consists for example in
transforming the biological sequences into vectors of motifs where each motif
is a subsequence that can be seen as a property (or attribute) characterizing
the sequence. Hence, we obtain an object-property table where objects are
sequences and properties are motifs extracted from sequences. This output can
be used to apply standard machine learning tools to perform data mining tasks
such as classification. Several previous works have described feature
extraction methods for bio-sequence classification, but none of them discussed
the robustness of these methods when perturbing the input data. In this work,
we introduce the notion of stability of the generated motifs in order to study
the robustness of motif extraction methods. We express this robustness in terms
of the ability of the method to reveal any change occurring in the input data
and also its ability to target the interesting motifs. We use these criteria to
evaluate and experimentally compare four existing extraction methods for
biological sequences.
|
[{'version': 'v1', 'created': 'Thu, 21 Jun 2012 10:09:41 GMT'}
{'version': 'v2', 'created': 'Tue, 4 Dec 2012 13:44:12 GMT'}
{'version': 'v3', 'created': 'Wed, 5 Dec 2012 08:52:31 GMT'}]
|
2016-08-24
|
[array(['Saidi', 'Rabie', ''], dtype=object)
array(['Aridhi', 'Sabeur', ''], dtype=object)
array(['Maddouri', 'Mondher', ''], dtype=object)
array(['Nguifo', 'Engelbert Mephu', ''], dtype=object)]
|
18,225 |
1211.1941
|
Sean Molesky
|
Sean Molesky, Christopher J. Dewalt, and Zubin Jacob
|
High temperature epsilon-near-zero and epsilon-near-pole metamaterial
emitters for thermophotovoltaics
|
15 pages, 8 figures
|
Optics Express, Vol. 21 Issue S1, pp.A96-A110 (2013)
|
10.1364/OE.21.000A96
| null |
physics.optics cond-mat.mes-hall cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We propose a method for engineering thermally excited far field
electromagnetic radiation using epsilon-near-zero metamaterials and introduce a
new class of artificial media: epsilon-near-pole metamaterials. We also
introduce the concept of high temperature plasmonics as conventional
metamaterial building blocks have relatively poor thermal stability. Using our
approach, the angular nature, spectral position, and width of the thermal
emission and optical absorption can be finely tuned for a variety of
applications. In particular, we show that these metamaterial emitters near 1500
K can be used as part of thermophotovoltaic devices to surpass the full
concentration Shockley-Queisser limit of 41%. Our work paves the way for high
temperature thermal engineering applications of metamaterials.
|
[{'version': 'v1', 'created': 'Thu, 8 Nov 2012 18:53:28 GMT'}]
|
2015-06-12
|
[array(['Molesky', 'Sean', ''], dtype=object)
array(['Dewalt', 'Christopher J.', ''], dtype=object)
array(['Jacob', 'Zubin', ''], dtype=object)]
|
18,226 |
2206.09692
|
Sumiran Pujari
|
Nisheeta Desai and Sumiran Pujari
|
Notes on resummation-based quantum Monte Carlo vis-\`a-vis
sign-problematic Heisenberg models on canonical geometrically frustrated
lattices
|
13 pages, 5 figures in one-column preprint format
| null | null | null |
cond-mat.str-el cond-mat.stat-mech physics.comp-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show here that a direct application of resummation-based quantum Monte
Carlo (QMC) -- implemented recently for sign-problem-free SU(2)-symmetric
Hamiltonians in the stochastic series expansion (SSE) framework -- does not
reduce the sign problem for frustrated SU(2)-symmetric Heisenberg
antiferromagnets on canonical geometrically frustrated lattices composed of
triangular motifs such as the triangular lattice. In the process, we
demonstrate that resummation-based updates do provide an ergodic sampling of
the SSE-based QMC configurations which can be an issue when using the standard
SSE updates, however, severely limited by the sign problem as previously
mentioned. The notions laid out in these notes may be useful in the design of
better algorithms for geometrically frustrated magnets.
|
[{'version': 'v1', 'created': 'Mon, 20 Jun 2022 10:23:03 GMT'}]
|
2022-06-22
|
[array(['Desai', 'Nisheeta', ''], dtype=object)
array(['Pujari', 'Sumiran', ''], dtype=object)]
|
18,227 |
cond-mat/0009035
|
Nobuo Furukawa
|
T. Akimoto, Y. Moritomo, A. Nakamura, and N. Furukawa
|
Observation of anomalous single-magnon scattering in half-metallic
ferromagnets by chemical pressure control
|
To appear in Phys. Rev. Lett., 3 pages + 4 EPS figures
| null |
10.1103/PhysRevLett.85.3914
| null |
cond-mat.str-el cond-mat.mtrl-sci
| null |
Temperature variation of resistivity and specific heat have been measured for
prototypical half-metallic ferromagnets,
R_0.6Sr_0.4MnO_3, with controlling the one-electron bandwidth W. We have
found variation of the temperature scalings in the resistivity from
T^2 (R = La, and Nd) to T^3 (R = Sm), and have interpreted the $T^3-law in
terms of the anomalous single-magnon scattering (AMS) process in the
half-metallic system.
|
[{'version': 'v1', 'created': 'Mon, 4 Sep 2000 05:55:27 GMT'}]
|
2016-08-31
|
[array(['Akimoto', 'T.', ''], dtype=object)
array(['Moritomo', 'Y.', ''], dtype=object)
array(['Nakamura', 'A.', ''], dtype=object)
array(['Furukawa', 'N.', ''], dtype=object)]
|
18,228 |
1710.00313
|
Noriaki Kawaguchi
|
Noriaki Kawaguchi
|
On the shadowing and limit shadowing properties
| null | null | null | null |
math.DS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the relation between the shadowing property and the limit shadowing
property. We prove that if a continuous self-map $f$ of a compact metric space
has the limit shadowing property, then the restriction of $f$ to the
non-wandering set satisfies the shadowing property. As an application, we prove
the equivalence of the two shadowing properties for equicontinuous maps.
|
[{'version': 'v1', 'created': 'Sun, 1 Oct 2017 08:32:20 GMT'}
{'version': 'v2', 'created': 'Mon, 25 Mar 2019 13:41:32 GMT'}]
|
2019-03-26
|
[array(['Kawaguchi', 'Noriaki', ''], dtype=object)]
|
18,229 |
0810.5473
|
Frederic Deliot
|
Frederic Deliot
|
Top Quark Cross Sections
|
11 pages, 6 figures, presented at XXVIII PHYSICS IN COLLISION
| null | null | null |
hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This article describes the analyses presented at the XXVIII Physics in
Collision conference about top quark cross sections performed at Tevatron.
|
[{'version': 'v1', 'created': 'Thu, 30 Oct 2008 11:36:30 GMT'}
{'version': 'v2', 'created': 'Sun, 14 Dec 2008 14:39:32 GMT'}]
|
2008-12-14
|
[array(['Deliot', 'Frederic', ''], dtype=object)]
|
18,230 |
2003.11466
|
Philippe Souplet
|
Louis Dupaigne, Boyan Sirakov, Philippe Souplet
|
A Liouville-type theorem for the Lane-Emden equation in a half-space
|
14 pages. arXiv admin note: text overlap with arXiv:2002.07247
| null | null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We prove that the Dirichlet problem for the Lane-Emden equation in a
half-space has no positive solution which is monotone in the normal direction.
As a consequence, this problem does not admit any positive classical solution
which is bounded on finite strips. This question has a long history and our
result solves a long-standing open problem. Such a nonexistence result was
previously available only for bounded solutions, or under a restriction on the
power in the nonlinearity. The result extends to general convex nonlinearities.
|
[{'version': 'v1', 'created': 'Tue, 24 Mar 2020 11:52:25 GMT'}]
|
2020-03-26
|
[array(['Dupaigne', 'Louis', ''], dtype=object)
array(['Sirakov', 'Boyan', ''], dtype=object)
array(['Souplet', 'Philippe', ''], dtype=object)]
|
18,231 |
cond-mat/0307701
|
Valerio Bellini
|
V. Bellini, F. Manghi, T. Thonhauser and C. Ambrosch-Draxl
|
Structure optimization effects on the electronic properties of
Bi$_2$Sr$_2$CaCu$_2$O$_8$
|
22 pages, 4 figures
| null |
10.1103/PhysRevB.69.184508
| null |
cond-mat.mtrl-sci cond-mat.supr-con
| null |
We present detailed first-principles calculations for the normal state
electronic properties of the high T$_C$ superconductor
Bi$_2$Sr$_2$CaCu$_2$O$_8$, by means of the linearized augmented plane wave
(LAPW) method within the framework of density functional theory (DFT). As a
first step, the body centered tetragonal (BCT) cell has been adopted, and
optimized regarding its volume, $c/a$ ratio and internal atomic positions by
total energy and force minimizations. The full optimization of the BCT cell
leads to small but visible changes in the topology of the Fermi surface,
rounding the shape of CuO$_2$ barrels, and causing both the BiO bands,
responsible for the pockets near the \textit{\=M} 2D symmetry point, to dip
below the Fermi level. We have then studied the influence of the distortions in
the BiO plane observed in nature by means of a $\sqrt{2}\times\sqrt{2}$
orthorhombic cell (AD-ORTH) with $Bbmb$ space group. Contrary to what has been
observed for the Bi-2201 compound, we find that for Bi-2212 the distortion does
not sensibly shift the BiO bands which retain their metallic character. As a
severe test for the considered structures we present Raman-active phonon
frequencies ($q = 0$) and eigenvectors calculated within the frozen-phonon
approximation. Focussing on the totally symmetric A$_{g}$ modes, we observe
that for a reliable attribution of the peaks observed in Raman experiments,
both $c$- and a-axis vibrations must be taken into account, the latter being
activated by the in-plane orthorhombic distortion.
|
[{'version': 'v1', 'created': 'Tue, 29 Jul 2003 10:47:49 GMT'}]
|
2009-11-10
|
[array(['Bellini', 'V.', ''], dtype=object)
array(['Manghi', 'F.', ''], dtype=object)
array(['Thonhauser', 'T.', ''], dtype=object)
array(['Ambrosch-Draxl', 'C.', ''], dtype=object)]
|
18,232 |
1912.06428
|
Kira Goldner
|
Kira Goldner, Nicole Immorlica, Brendan Lucier
|
Reducing Inefficiency in Carbon Auctions with Imperfect Competition
|
To appear in the 11th Innovations in Theoretical Computer Science
(ITCS 2020)
| null | null | null |
cs.GT cs.DS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study auctions for carbon licenses, a policy tool used to control the
social cost of pollution. Each identical license grants the right to produce a
unit of pollution. Each buyer (i.e., firm that pollutes during the
manufacturing process) enjoys a decreasing marginal value for licenses, but
society suffers an increasing marginal cost for each license distributed. The
seller (i.e., the government) can choose a number of licenses to put up for
auction, and wishes to maximize the societal welfare: the total economic value
of the buyers minus the social cost. Motivated by emission license markets
deployed in practice, we focus on uniform price auctions with a price floor
and/or price ceiling. The seller has distributional information about the
market, and their goal is to tune the auction parameters to maximize expected
welfare. The target benchmark is the maximum expected welfare achievable by any
such auction under truth-telling behavior. Unfortunately, the uniform price
auction is not truthful, and strategic behavior can significantly reduce (even
below zero) the welfare of a given auction configuration.
We describe a subclass of "safe-price'" auctions for which the welfare at any
Bayes-Nash equilibrium will approximate the welfare under truth-telling
behavior. We then show that the better of a safe-price auction, or a truthful
auction that allocates licenses to only a single buyer, will approximate the
target benchmark. In particular, we show how to choose a number of licenses and
a price floor so that the worst-case welfare, at any equilibrium, is a constant
approximation to the best achievable welfare under truth-telling after
excluding the welfare contribution of a single buyer.
|
[{'version': 'v1', 'created': 'Fri, 13 Dec 2019 11:51:47 GMT'}]
|
2019-12-16
|
[array(['Goldner', 'Kira', ''], dtype=object)
array(['Immorlica', 'Nicole', ''], dtype=object)
array(['Lucier', 'Brendan', ''], dtype=object)]
|
18,233 |
1206.4259
|
Thomas M\"uller
|
Thomas M\"uller, J\"org Frauendiener
|
Interactive visualization of a thin disc around a Schwarzschild black
hole
|
9 pages, 4 figures
|
Eur. J. Phys. 33:955, 2012
|
10.1088/0143-0807/33/4/955
| null |
gr-qc physics.ed-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In the first course of general relativity, the Schwarzschild spacetime is the
most discussed analytic solution to Einstein's field equations. Unfortunately,
there is rarely enough time to study the optical consequences of the bending of
light for some advanced examples. In this paper, we present how the visual
appearance of a thin disc around a Schwarzschild black hole can be determined
interactively by means of an analytic solution to the geodesic equation
processed on current high performance graphical processing units. This approach
can, in principle, be customized for any other thin disc in a spacetime with
geodesics given in closed form. The interactive visualization discussed here
can be used either in a first course of general relativity for demonstration
purposes only or as a thesis for an enthusiastic student in an advanced course
with some basic knowledge of OpenGL and a programming language.
|
[{'version': 'v1', 'created': 'Tue, 19 Jun 2012 16:37:43 GMT'}]
|
2012-06-20
|
[array(['M\x7füller', 'Thomas', ''], dtype=object)
array(['Frauendiener', 'Jörg', ''], dtype=object)]
|
18,234 |
1405.4780
|
Fei Yan
|
Fei Yan, Robert A.E. Fosbury, Monika G. Petr-Gotzens, Gang Zhao, Wei
Wang, Liang Wang, Yujuan Liu, and Enric Pall\'e
|
High resolution transmission spectrum of the Earth's atmosphere --
Seeing Earth as an exoplanet using a lunar eclipse
|
12 pages, 15 figures, accepted, International Journal of Astrobiology
| null |
10.1017/S1473550414000172
| null |
astro-ph.EP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
With the rapid developments in the exoplanet field, more and more terrestrial
exoplanets are being detected. Characterising their atmospheres using transit
observations will become a key datum in the quest for detecting an Earth-like
exoplanet. The atmospheric transmission spectrum of our Earth will be an ideal
template for comparison with future exo-Earth candidates. By observing a lunar
eclipse, which offers a similar configuration to that of an exoplanet transit,
we have obtained a high resolution and high signal-to-noise ratio transmission
spectrum of the Earth's atmosphere. This observation was performed with the
High Resolution Spectrograph at Xinglong Station, China during the total lunar
eclipse in December 2011. We compare the observed transmission spectrum with
our atmospheric model, and determine the characteristics of the various
atmospheric species in detail. In the transmission spectrum, O2, O3, O2-O2, NO2
and H2O are detected, and their column densities are measured and compared with
the satellites data. The visible Chappuis band of ozone produces the most
prominent absorption feature, which suggests that ozone is a promising molecule
for the future exo-Earth characterization. The individual O2 lines are resolved
and O2 isotopes are clearly detected. Our new observations do not confirm the
absorption features of Ca II or Na I which have been reported in previous lunar
eclipse observations. However, features in these and some other strong
Fraunhofer line positions do occur in the observed spectrum. We propose that
these are due to a Raman-scattered component in the forward-scattered sunlight
appearing in the lunar umbral spectrum. Water vapour absorption is found to be
rather weak in our spectrum because the atmosphere we probed is relatively dry,
which prompts us to discuss the detectability of water vapour in Earth-like
exoplanet atmospheres.
|
[{'version': 'v1', 'created': 'Mon, 19 May 2014 16:02:42 GMT'}]
|
2015-06-19
|
[array(['Yan', 'Fei', ''], dtype=object)
array(['Fosbury', 'Robert A. E.', ''], dtype=object)
array(['Petr-Gotzens', 'Monika G.', ''], dtype=object)
array(['Zhao', 'Gang', ''], dtype=object)
array(['Wang', 'Wei', ''], dtype=object)
array(['Wang', 'Liang', ''], dtype=object)
array(['Liu', 'Yujuan', ''], dtype=object)
array(['Pallé', 'Enric', ''], dtype=object)]
|
18,235 |
cond-mat/0412738
|
George Cragg
|
George E. Cragg and Arthur K. Kerman
|
A Complex Chemical Potential: Signature of Decay in a Bose-Einstein
Condensate
|
4 pages, 1 figure
| null |
10.1103/PhysRevLett.94.190402
| null |
cond-mat.other
| null |
We explore the zero-temperature statics of an atomic Bose-Einstein condensate
in which a Feshbach resonance creates a coupling to a second condensate
component of quasi-bound molecules. Using a variational procedure to find the
equation of state, the appearance of this binding is manifest in a collapsing
ground state, where only the molecular condensate is present up to some
critical density. Further, an excited state is seen to reproduce the usual
low-density atomic condensate behavior in this system, but the molecular
component is found to produce an underlying decay, quantified by the imaginary
part of the chemical potential. Most importantly, the unique decay rate
dependencies on density ($\sim \rho ^{3/2}$) and on scattering length ($\sim
a^{5/2}$) can be measured in experimental tests of this theory.
|
[{'version': 'v1', 'created': 'Wed, 29 Dec 2004 06:10:30 GMT'}]
|
2009-11-10
|
[array(['Cragg', 'George E.', ''], dtype=object)
array(['Kerman', 'Arthur K.', ''], dtype=object)]
|
18,236 |
1007.0160
|
Amar Karki
|
A.B. Karki, Y.M. Xiong, I.Vekhter, D. Browne, P.W. Adams, K. R. Thomas
and Julia Y. Chan, R. Prozorov, H. Kim, and D.P. Young
|
Structure and physical properties of the noncentrosymmetric
superconductor Mo3Al2C
|
15 pages, 10 figures
| null |
10.1103/PhysRevB.82.064512
| null |
cond-mat.supr-con
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We have synthesized polycrystalline samples of the noncentrosymmetric
superconductor Mo3Al2C by arc and RF melting, measured its transport, magnetic
and thermodynamic properties, and computed its band structure. Experimental
results indicate a bulk superconducting transition at Tc ~ 9.2 K, while the
density of states at the Fermi surface is found to be dominated by Mo
d-orbitals. Using the measured values for the lower critical field Hc1, upper
critical field Hc2, and the specific heat C, we estimated the thermodynamic
critical field Hc(0), coherence length {\xi}(0), penetration depth
{\lambda}(0), and the Ginzburg-Landau parameter {\kappa}(0). The specific heat
jump at Tc, {\Delta}C/{\gamma}Tc = 2.14, suggests that Mo3Al2C is
moderately-to-strongly coupled, consistent with the fast opening of the gap, as
evidenced by the rapid release of entropy below Tc from our electronic specific
heat measurements. Above 2K the electronic specific heat exhibits the power law
behavior, suggesting that synthesis of single crystals and measurements at
lower temperature are needed to establish whether the gap is anisotropic. The
estimated value of the upper critical field Hc2(0) is close to the calculated
Pauli limit, therefore further studies are needed to determine whether the
absence of an inversion center results in a significant admixture of the
triplet component of the order parameter.
|
[{'version': 'v1', 'created': 'Thu, 1 Jul 2010 13:23:15 GMT'}]
|
2015-05-19
|
[array(['Karki', 'A. B.', ''], dtype=object)
array(['Xiong', 'Y. M.', ''], dtype=object)
array(['Vekhter', 'I.', ''], dtype=object)
array(['Browne', 'D.', ''], dtype=object)
array(['Adams', 'P. W.', ''], dtype=object)
array(['Thomas', 'K. R.', ''], dtype=object)
array(['Chan', 'Julia Y.', ''], dtype=object)
array(['Prozorov', 'R.', ''], dtype=object)
array(['Kim', 'H.', ''], dtype=object)
array(['Young', 'D. P.', ''], dtype=object)]
|
18,237 |
1605.01902
|
Nicol\'as Lorente
|
J.P. Gauyacq and N. Lorente
|
Extremely long-lived magnetic excitations in supported Fe chains
|
21 pages
|
Phys. Rev. B 94, 045420 (2016)
|
10.1103/PhysRevB.94.045420
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report on a theoretical study of the lifetime of the first excited state
of spin chains made of an odd number of Fe atoms on Cu2N/Cu(100). Yan et al
(Nat. Nanotech. 10, 40 (2015)) recently observed very long lifetimes in the
case of Fe3 chains. We consider the decay of the first excited state induced by
electron-hole pair creation in the substrate. For a finite magnetic field, the
two lowest-lying states in the chain have a quasi-N\'eel state structure. Decay
from one state to the other strongly depends on the degree of entanglement of
the local spins in the chain. The entanglement in the chain accounts for the
long lifetimes that increase exponentially with chain length. Despite their
apparently very different properties, the behaviour of odd and even chains is
governed by the same kind of phenomena, in particular entanglement effects. The
present results account quite well for the lifetimes recently measured by Yan
et al on Fe3
|
[{'version': 'v1', 'created': 'Fri, 6 May 2016 11:53:44 GMT'}]
|
2016-07-20
|
[array(['Gauyacq', 'J. P.', ''], dtype=object)
array(['Lorente', 'N.', ''], dtype=object)]
|
18,238 |
1712.02924
|
Shao-Yu Chen
|
Shao-Yu Chen, Thomas Goldstein, Jiayue Tong, Takashi Taniguchi, Kenji
Watanabe and Jun Yan
|
Superior valley polarization and coherence of 2s excitons in monolayer
WSe2
| null |
Phys. Rev. Lett. 120, 046402 (2018)
|
10.1103/PhysRevLett.120.046402
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report experimental observation of 2s exciton radiative emission from
monolayer tungsten diselenide, enabled by hexagonal boron nitride protected
high-quality samples. The 2s luminescence is highly robust and persists up to
150K, offering a new quantum entity for manipulating the valley degree of
freedom. Remarkably, the 2s exciton displays superior valley polarization and
coherence than 1s under similar experimental conditions. This observation
provides evidence that the Coulomb-exchange-interaction-driven
valley-depolarization process, the Maialle-Silva-Sham mechanism, plays an
important role in valley excitons of monolayer transition metal
dichalcogenides.
|
[{'version': 'v1', 'created': 'Fri, 8 Dec 2017 03:07:59 GMT'}]
|
2018-01-31
|
[array(['Chen', 'Shao-Yu', ''], dtype=object)
array(['Goldstein', 'Thomas', ''], dtype=object)
array(['Tong', 'Jiayue', ''], dtype=object)
array(['Taniguchi', 'Takashi', ''], dtype=object)
array(['Watanabe', 'Kenji', ''], dtype=object)
array(['Yan', 'Jun', ''], dtype=object)]
|
18,239 |
2011.07905
|
Jonas Stelzig
|
Hisashi Kasuya, Jonas Stelzig
|
Fr\"olicher spectral sequence and Hodge structures on the cohomology of
complex parallelisable manifolds
|
Comments welcome!
| null | null | null |
math.AG math.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
For complex parallelisable manifolds $\Gamma\backslash G$, with $G$ a
solvable or semisimple complex Lie group, the Fr\"olicher spectral sequence
degenerates at the second page. In the solvable case, the de-Rham cohomology
carries a pure Hodge structure. In contrast, in the semisimple case, purity
depends on the lattice, but there is always a direct summand of the de Rham
cohomology which does carry a pure Hodge structure and is independent of the
lattice.
|
[{'version': 'v1', 'created': 'Mon, 16 Nov 2020 12:37:43 GMT'}]
|
2020-11-17
|
[array(['Kasuya', 'Hisashi', ''], dtype=object)
array(['Stelzig', 'Jonas', ''], dtype=object)]
|
18,240 |
2301.04143
|
Alexandros Spyridon Arvanitakis
|
Alex S. Arvanitakis
|
Topological defects as lagrangian correspondences
|
5+1 pages v2: fixed Acknowledgments, v3: fixed a typo; essentially
matches published version
|
Phys. Rev. D 107, 066016, 2023
|
10.1103/PhysRevD.107.066016
| null |
hep-th math-ph math.MP math.SG
|
http://creativecommons.org/licenses/by/4.0/
|
Topological defects attract much recent interest in high-energy and condensed
matter physics because they encode (non-invertible) symmetries and dualities.
We study codimension-1 topological defects from a hamiltonian point of view,
with the defect location playing the role of `time'. We show that the Weinstein
symplectic category governs topological defects and their fusion: each defect
is a lagrangian correspondence, and defect fusion is their geometric
composition. We illustrate the utility of these ideas by constructing S- and
T-duality defects in string theory, including a novel topology-changing
non-abelian T-duality defect.
|
[{'version': 'v1', 'created': 'Tue, 10 Jan 2023 19:00:00 GMT'}
{'version': 'v2', 'created': 'Tue, 24 Jan 2023 15:31:08 GMT'}
{'version': 'v3', 'created': 'Fri, 17 Mar 2023 18:12:50 GMT'}]
|
2023-03-21
|
[array(['Arvanitakis', 'Alex S.', ''], dtype=object)]
|
18,241 |
2111.08979
|
Alma Van Der Merwe
|
Sanne ter Horst and Alma van der Merwe
|
A Hill-Pick matrix criteria for the Lyapunov order
| null | null | null | null |
math.FA
|
http://creativecommons.org/licenses/by/4.0/
|
The Lyapunov order appeared in the study of Nevanlinna-Pick interpolation for
positive real odd functions with general (real) matrix points. For real or
complex matrices $A$ and $B$ it is said that $B$ Lyapunov dominates $A$ if
\begin{equation*} H=H^*,\quad HA+A^*H \geq 0 \quad \implies \quad HB+B^*H \geq
0. \end{equation*} (In case $A$ and $B$ are real we usually restrict to real
Hermitian matrices $H$, i.e., symmetric $H$.) Hence $B$ Lyapunov dominates $A$
if all Lyapunov solutions of $A$ are also Lyapunov solutions of $B$. In this
chapter we restrict to the case that appears in the study of Nevanlinna-Pick
interpolation, namely where $B$ is in the bicommutant of $A$ and where $A$ is
Lyapunov regular, meaning the eigenvalues $\lambda_j$ of $A$ satisfy \[
\lambda_i + \overline{\lambda}_j \ne 0, \quad i,j=1,\ldots,n. \] In this case
we provide a matrix criteria for Lyapunov dominance of $A$ by $B$. The result
relies on a class of $*$-linear maps for which positivity and complete
positivity coincide and a representation of $*$-linear matrix maps going back
to work of R.D. Hill. The matrix criteria asks that a certain matrix, which we
call the Hill-Pick matrix, be positive semidefinite.
|
[{'version': 'v1', 'created': 'Wed, 17 Nov 2021 08:55:04 GMT'}]
|
2021-11-18
|
[array(['ter Horst', 'Sanne', ''], dtype=object)
array(['van der Merwe', 'Alma', ''], dtype=object)]
|
18,242 |
2206.03790
|
Madeline Waller
|
Madeline C. Waller and Robert Bennett
|
Environment-modified three-body energy transfer
| null | null | null | null |
quant-ph
|
http://creativecommons.org/licenses/by/4.0/
|
Resonant energy transfer from a donor to an acceptor is one of the most basic
interactions between atomic and molecular systems. In real-life situations, the
donor and acceptor are not isolated but in fact coupled to their environment
and to other atoms and molecules. The presence of a third body can modify the
rate of energy transfer between donor and acceptor in distinctive and intricate
ways, especially when the three-site system is itself interacting with a larger
macroscopic background such as a solvent. The rate can be calculated
perturbatively, which ordinarily requires the summation of very large numbers
of Feynman-like diagrams. Here we demonstrate a method based on canonical
perturbation theory that allows us to reduce the computational effort required,
and use this technique to derive a formula for the rate of three-body resonance
energy transfer in a background environment. As a proof-of-principle, we apply
this to the situation of a dimer positioned near a dielectric interface, with a
distant third molecule controlling the rate, finding both enhancement or
suppression of the rate depending on system parameters.
|
[{'version': 'v1', 'created': 'Wed, 8 Jun 2022 10:13:51 GMT'}]
|
2022-06-09
|
[array(['Waller', 'Madeline C.', ''], dtype=object)
array(['Bennett', 'Robert', ''], dtype=object)]
|
18,243 |
2101.11055
|
Dhruv Kohli
|
Dhruv Kohli, Alexander Cloninger, Gal Mishne
|
LDLE: Low Distortion Local Eigenmaps
|
66 pages, 32 figures, preprint. Rearranged figures
|
JMLR (2021) 22: 64
| null | null |
math.SP cs.LG math.AP stat.ML
|
http://creativecommons.org/licenses/by/4.0/
|
We present Low Distortion Local Eigenmaps (LDLE), a manifold learning
technique which constructs a set of low distortion local views of a dataset in
lower dimension and registers them to obtain a global embedding. The local
views are constructed using the global eigenvectors of the graph Laplacian and
are registered using Procrustes analysis. The choice of these eigenvectors may
vary across the regions. In contrast to existing techniques, LDLE can embed
closed and non-orientable manifolds into their intrinsic dimension by tearing
them apart. It also provides gluing instruction on the boundary of the torn
embedding to help identify the topology of the original manifold. Our
experimental results will show that LDLE largely preserved distances up to a
constant scale while other techniques produced higher distortion. We also
demonstrate that LDLE produces high quality embeddings even when the data is
noisy or sparse.
|
[{'version': 'v1', 'created': 'Tue, 26 Jan 2021 19:55:05 GMT'}
{'version': 'v2', 'created': 'Fri, 24 Sep 2021 00:47:14 GMT'}
{'version': 'v3', 'created': 'Thu, 14 Oct 2021 15:18:19 GMT'}]
|
2021-12-21
|
[array(['Kohli', 'Dhruv', ''], dtype=object)
array(['Cloninger', 'Alexander', ''], dtype=object)
array(['Mishne', 'Gal', ''], dtype=object)]
|
18,244 |
1006.1646
|
Dmitry V. Belyaev
|
Dmitry V. Belyaev
|
Mass-Deformed BLG Theory in Light-Cone Superspace
|
23 pages
|
J. Phys.A 43:385403, 2010
|
10.1088/1751-8113/43/38/385403
| null |
hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Maximally supersymmetric mass deformation of the Bagger-Lambert-Gustavsson
(BLG) theory corresponds to a {non-central} extension of the d=3 N=8 Poincare
superalgebra (allowed in three dimensions). We obtain its light-cone superspace
formulation which has a novel feature of the dynamical supersymmetry generators
being {cubic} in the kinematical ones. The mass deformation picks a
quaternionic direction, which breaks the SO(8) R-symmetry down to SO(4)xSO(4).
The Hamiltonian of the theory is shown to be a quadratic form of the dynamical
supersymmetry transformations, to all orders in the mass parameter, M, and the
structure constants, f^{a b c d}.
|
[{'version': 'v1', 'created': 'Tue, 8 Jun 2010 19:57:05 GMT'}]
|
2014-11-21
|
[array(['Belyaev', 'Dmitry V.', ''], dtype=object)]
|
18,245 |
1403.7977
|
Mark Lewis
|
Mark L. Lewis and John K. McVey
|
Using a Galois connection to compute character degrees
| null | null | null | null |
math.GR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Given a Mersenne prime $q$ and a positive even integer $e$, let $F$ and $E$
be the fields of orders $q$ and $q^e$ respectively. Let $C$ be a cyclic
subgroup of $E^\times$ whose index in $E^\times$ is divisible only by primes
dividing $q - 1$. We compute the character degrees of the group $C \rtimes {\rm
Gal} (E/F)$ by using the Galois connection between the subfields of $E$ and the
Galois group ${\rm Gal} (E/F)$.
|
[{'version': 'v1', 'created': 'Mon, 31 Mar 2014 12:59:02 GMT'}]
|
2014-04-01
|
[array(['Lewis', 'Mark L.', ''], dtype=object)
array(['McVey', 'John K.', ''], dtype=object)]
|
18,246 |
0809.1648
|
Kyle Barbary
|
K. Barbary, K. S. Dawson, K. Tokita, G. Aldering, R. Amanullah, N. V.
Connolly, M. Doi, L. Faccioli, V. Fadeyev, A. S. Fruchter, G. Goldhaber, A.
Goobar, A. Gude, X. Huang, Y. Ihara, K. Konishi, M. Kowalski, C. Lidman, J.
Meyers, T. Morokuma, P. Nugent, S. Perlmutter, D. Rubin, D. Schlegel, A. L.
Spadafora, N. Suzuki, H. K. Swift, N. Takanashi, R. C. Thomas, and N. Yasuda
(for the Supernova Cosmology Project)
|
Discovery of an Unusual Optical Transient with the Hubble Space
Telescope
|
5 pages, 4 figures. Accepted for publication in ApJ. Data are
available at http://supernova.lbl.gov/2006Transient/
|
Astrophys.J.690:1358-1362,2009
|
10.1088/0004-637X/690/2/1358
| null |
astro-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present observations of SCP 06F6, an unusual optical transient discovered
during the Hubble Space Telescope Cluster Supernova Survey. The transient
brightened over a period of ~100 days, reached a peak magnitude of ~21.0 in
both i_775 and z_850, and then declined over a similar timescale. There is no
host galaxy or progenitor star detected at the location of the transient to a 3
sigma upper limit of i_775 = 26.4 and z_850 = 26.1, giving a corresponding
lower limit on the flux increase of a factor of ~120. Multiple spectra show
five broad absorption bands between 4100 AA and 6500 AA and a mostly
featureless continuum longward of 6500 AA. The shape of the lightcurve is
inconsistent with microlensing. The transient's spectrum, in addition to being
inconsistent with all known supernova types, is not matched to any spectrum in
the Sloan Digital Sky Survey (SDSS) database. We suggest that the transient may
be one of a new class.
|
[{'version': 'v1', 'created': 'Wed, 10 Sep 2008 05:19:51 GMT'}]
|
2019-08-14
|
[array(['Barbary', 'K.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Dawson', 'K. S.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Tokita', 'K.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Aldering', 'G.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Amanullah', 'R.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Connolly', 'N. V.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Doi', 'M.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Faccioli', 'L.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Fadeyev', 'V.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Fruchter', 'A. S.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Goldhaber', 'G.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Goobar', 'A.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Gude', 'A.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Huang', 'X.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Ihara', 'Y.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Konishi', 'K.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Kowalski', 'M.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Lidman', 'C.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Meyers', 'J.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Morokuma', 'T.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Nugent', 'P.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Perlmutter', 'S.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Rubin', 'D.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Schlegel', 'D.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Spadafora', 'A. L.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Suzuki', 'N.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Swift', 'H. K.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Takanashi', 'N.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Thomas', 'R. C.', '', 'for the Supernova Cosmology Project'],
dtype=object)
array(['Yasuda', 'N.', '', 'for the Supernova Cosmology Project'],
dtype=object) ]
|
18,247 |
2203.00492
|
Zahra Feizi Mangoudehi
|
Z. Feizi Mangoudehi
|
Interacting Tsallis agegraphic dark energy in DGP Braneworld Cosmology
|
32 pager, 15 figures accepted in Astrophysics and Space Science
|
Astrophys Space Sci 367, 31 (2022) (view-only version link=
https://rdcu.be/cI39R)
|
10.1007/s10509-022-04044-7
| null |
gr-qc astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The purpose of this paper is to study the Tsallis agegraphic dark energy with
an interaction term between dark energy and dark matter in the DGP brane-world
scenario. For this, we assume some initial conditions to obtain the dark energy
density, deceleration, dark energy EoS, and total EoS parameters. Then, we
analyze the statefinder parameters, $\omega'{}_{DE}-\omega_{DE}$ plots, and
classical stability features of the model. The results state that the
deceleration parameter provides the phase transition from decelerated to
accelerated phase. The $\omega_{DE}$ graphs show the phantom behavior, while
the $\omega_{tot}$ exhibits the quintessence and phantom during the evolution
of the Universe. Following the graphs, the Statefinder analysis shows the
quintessence behavior of the model for the past and present. However, it tends
to the $\Lambda CDM$ in the following era. The $\omega'{}_{DE}-\omega_{DE}$
plot indicates the thawing or freezing area depending on the type of era and
different values of $b^{2}$, $\delta$, and $m$. By the square of the sound
speed, we see the model is stable in the past, stable or unstable at the
current time, and unstable in the future for selected values of $b^{2}$,
$\delta$, and $m$. To test the model, we use the recent Hubble data. We also
employ Akaike Information Criterion (AIC) and Bayesian Information Criterion
(BIC) to compare the model with the $\Lambda CDM$ as the reference model. In
addition, we test the model using the $H-z$ plot, and we see a turning point in
the future time. The results from the best fit values for the $\omega_{tot}$
plot emphasize that the Universe is in the quintessence region in the current
time. It will enter the phantom phase, and then it will approach the $\Lambda$
state in the future. But, the $\omega_{DE}$ always stays on the phantom region.
The model is unstable in the present and progressive era.
|
[{'version': 'v1', 'created': 'Tue, 1 Mar 2022 14:39:53 GMT'}]
|
2022-03-17
|
[array(['Mangoudehi', 'Z. Feizi', ''], dtype=object)]
|
18,248 |
0712.1653
|
Jing Long Hoelscher
|
Jing Long Hoelscher
|
Galois extensions ramified only at one prime
|
10 pages
| null | null | null |
math.NT
| null |
This paper gives some restrictions on finite groups that can occur as Galois
groups of extensions over $\Q$ and over $\F_q(t)$ ramified only at one finite
prime. Over $\Q$, we strengthen results of Jensen and Yui about dihedral
extensions and rule out some non-solvable groups. Over $\F_q(t)$ restrictions
are given for symmetric groups and dihedral groups to occur as tamely ramified
extension over $\F_q(t)$ ramified only at one prime.
|
[{'version': 'v1', 'created': 'Tue, 11 Dec 2007 06:42:48 GMT'}]
|
2007-12-12
|
[array(['Hoelscher', 'Jing Long', ''], dtype=object)]
|
18,249 |
1906.06048
|
Petr Hlin\v{e}n\'y
|
Petr Hlin\v{e}n\'y and Abhisekh Sankaran
|
Exact Crossing Number Parameterized by Vertex Cover
|
Appears in the Proceedings of the 27th International Symposium on
Graph Drawing and Network Visualization (GD 2019)
| null | null | null |
cs.DM math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We prove that the exact crossing number of a graph can be efficiently
computed for simple graphs having bounded vertex cover. In more precise words,
Crossing Number is in FPT when parameterized by the vertex cover size. This is
a notable advance since we know only very few nontrivial examples of graph
classes with unbounded and yet efficiently computable crossing number. Our
result can be viewed as a strengthening of a previous result of Lokshtanov
[arXiv, 2015] that Optimal Linear Arrangement is in FPT when parameterized by
the vertex cover size, and we use a similar approach of reducing the problem to
a tractable instance of Integer Quadratic Programming as in Lokshtanov's paper.
|
[{'version': 'v1', 'created': 'Fri, 14 Jun 2019 06:52:36 GMT'}
{'version': 'v2', 'created': 'Wed, 21 Aug 2019 20:57:29 GMT'}
{'version': 'v3', 'created': 'Thu, 5 Sep 2019 09:26:33 GMT'}]
|
2019-09-06
|
[array(['Hliněný', 'Petr', ''], dtype=object)
array(['Sankaran', 'Abhisekh', ''], dtype=object)]
|
18,250 |
2202.07934
|
Paul Manns
|
Paul Manns and Mirko Hahn and Christian Kirches and Sven Leyffer and
Sebastian Sager
|
On Convergence of Binary Trust-Region Steepest Descent
| null | null | null | null |
math.OC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Binary trust-region steepest descent (BTR) and combinatorial integral
approximation (CIA) are two recently investigated approaches for the solution
of optimization problems with distributed binary-/discrete-valued variables
(control functions). We show improved convergence results for BTR by imposing a
compactness assumption that is similar to the convergence theory of CIA. As a
corollary we conclude that BTR also constitutes a descent algorithm on the
continuous relaxation and its iterates converge weakly-$^*$ to stationary
points of the latter. We provide computational results that validate our
findings. In addition, we observe a regularizing effect of BTR, which we
explore by means of a hybridization of CIA and BTR.
|
[{'version': 'v1', 'created': 'Wed, 16 Feb 2022 08:52:59 GMT'}
{'version': 'v2', 'created': 'Mon, 10 Oct 2022 04:51:59 GMT'}
{'version': 'v3', 'created': 'Sat, 4 Mar 2023 20:38:43 GMT'}]
|
2023-03-07
|
[array(['Manns', 'Paul', ''], dtype=object)
array(['Hahn', 'Mirko', ''], dtype=object)
array(['Kirches', 'Christian', ''], dtype=object)
array(['Leyffer', 'Sven', ''], dtype=object)
array(['Sager', 'Sebastian', ''], dtype=object)]
|
18,251 |
0806.4226
|
Kenji Hamaguchi
|
Kenji Hamaguchi, Minho Choi, Michael F. Corcoran, Chul-Sung Choi,
Ken'ichi Tatematsu, Rob Petre
|
Resolving a Class I Protostar Binary System with Chandra
|
14 pages, 5 figures, Astrophysical Journal in press
| null |
10.1086/591544
| null |
astro-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Using a sub-pixel event repositioning technique, we spatially resolved X-ray
emission from the infrared double system IRS 5 in the R Corona Australis
molecular cloud with ~0.8" separation. As far as we know, this result -
obtained from 8 Chandra archival observations between 2000 and 2005 - is the
first X-ray study of individual sources in a Class I protostar binary system
with a projected separation of less than 200 AU. We extracted light curves and
spectra of the individual sources using a two-dimensional image fitting method.
IRS 5a at the south, the source which was brighter in the near-infrared, showed
three X-ray flares lasting >20 ksec, reminiscent of X-ray flares from pre-main
sequence stars, while the northern source (IRS 5b) was quiescent in X-rays in
all the observations except for a 2005 August 9 observation with a factor of ~2
flux enhancement. In quiescence, these sources showed almost identical X-ray
spectra, with NH ~4e22 cm-2, kT ~2 keV, and log Lx ~30.2-3 ergs s-1. IRS 5a
showed plasma at temperatures up to kT ~5-6 keV during flares, while the column
density of IRS 5b increased by a factor of 2 during an observation on 2005
August 9. We discuss the evolutionary stages and variation of the X-ray
activity of these sources.
|
[{'version': 'v1', 'created': 'Thu, 26 Jun 2008 02:34:21 GMT'}
{'version': 'v2', 'created': 'Fri, 27 Jun 2008 02:46:50 GMT'}]
|
2009-11-13
|
[array(['Hamaguchi', 'Kenji', ''], dtype=object)
array(['Choi', 'Minho', ''], dtype=object)
array(['Corcoran', 'Michael F.', ''], dtype=object)
array(['Choi', 'Chul-Sung', ''], dtype=object)
array(['Tatematsu', "Ken'ichi", ''], dtype=object)
array(['Petre', 'Rob', ''], dtype=object)]
|
18,252 |
1811.04959
|
Keisuke Inomata
|
Keisuke Inomata, Marc Kamionkowski
|
Chiral photons from chiral gravitational waves
|
5 pages, v2: minor changes, version accepted for publication in PRL
|
Phys. Rev. Lett. 123, 031305 (2019)
|
10.1103/PhysRevLett.123.031305
|
IPMU 18-0185
|
astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that a parity-breaking uniform (averaged over all directions on the
sky) circular polarization of amplitude $V_{00} \simeq 2.6 \times 10^{-17}\,
\Delta \chi (r/0.06)$ can be induced by chiral gravitational-wave (GW)
background with tensor-to-scalar ratio $r$ and chirality parameter $\Delta\chi$
(which is $\pm1$ for a maximally chiral background). We also show, however,
that a uniform circular polarization can arise from a realization of a
non-chiral GW background that spontaneously breaks parity. The magnitude of
this polarization is drawn from a distribution of root-variance $\sqrt{<
V_{00}^2>} \simeq 1.5\times 10^{-18}\, (r/0.06)^{1/2}$ implying that the
chirality parameter must be $\Delta \chi \gtrsim 0.12 (r/0.06)^{-1/2}$ to
establish that the GW background is chiral. Although these values are too small
to be detected by any experiment in the foreseeable future, the calculation is
a proof of principle that cosmological parity breaking in the form of a chiral
gravitational-wave background can be imprinted in the chirality of the photons
in the cosmic microwave background. It also illustrates how a seemingly
parity-breaking cosmological signal can arise from parity-conserving physics.
|
[{'version': 'v1', 'created': 'Mon, 12 Nov 2018 19:02:31 GMT'}
{'version': 'v2', 'created': 'Wed, 24 Jul 2019 22:26:08 GMT'}]
|
2019-07-26
|
[array(['Inomata', 'Keisuke', ''], dtype=object)
array(['Kamionkowski', 'Marc', ''], dtype=object)]
|
18,253 |
astro-ph/0406094
|
Jeremy S. Sanders
|
J. S. Sanders, A. C. Fabian, G. B. Taylor
|
A Chandra observation of the disturbed cluster core of Abell 2204
|
7 pages, submitted to MNRAS
|
Mon.Not.Roy.Astron.Soc.356:1022-1028,2005
|
10.1111/j.1365-2966.2004.08526.x/abs/
| null |
astro-ph
| null |
We present results from an observation of the luminous cluster of galaxies
Abell 2204 using the Chandra X-ray Observatory. We show the core of the cluster
has a complex morphological structure, made up of a high density core (n_e~0.2
cm^-3) with flat surface brightness, a surrounding central plateau, a tail-like
feature, wrapping around to the east, and an unusual radio source. A
temperature map and deprojected-profile shows that the temperature rises
steeply outside these regions, until around ~100 kpc where it drops, then rises
again. Abundance maps and profiles show that there is a corresponding increase
in abundance at the same radius as where the temperature drops. In addition
there are two cold fronts at radii of ~28 and 54.5 kpc. The disturbed
morphology indicates that the cluster core may have undergone a merger.
However, despite this disruption the mean radiative cooling time in the centre
is short (~230 Myr) and the morphology is regular on large scales.
|
[{'version': 'v1', 'created': 'Thu, 3 Jun 2004 17:10:16 GMT'}]
|
2009-09-17
|
[array(['Sanders', 'J. S.', ''], dtype=object)
array(['Fabian', 'A. C.', ''], dtype=object)
array(['Taylor', 'G. B.', ''], dtype=object)]
|
18,254 |
2102.13360
|
Zun Li
|
Zun Li, Congyan Lang, Liqian Liang, Tao Wang, Songhe Feng, Jun Wu, and
Yidong Li
|
A Universal Model for Cross Modality Mapping by Relational Reasoning
|
10 pages, 4 figures
| null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
With the aim of matching a pair of instances from two different modalities,
cross modality mapping has attracted growing attention in the computer vision
community. Existing methods usually formulate the mapping function as the
similarity measure between the pair of instance features, which are embedded to
a common space. However, we observe that the relationships among the instances
within a single modality (intra relations) and those between the pair of
heterogeneous instances (inter relations) are insufficiently explored in
previous approaches. Motivated by this, we redefine the mapping function with
relational reasoning via graph modeling, and further propose a GCN-based
Relational Reasoning Network (RR-Net) in which inter and intra relations are
efficiently computed to universally resolve the cross modality mapping problem.
Concretely, we first construct two kinds of graph, i.e., Intra Graph and Inter
Graph, to respectively model intra relations and inter relations. Then RR-Net
updates all the node features and edge features in an iterative manner for
learning intra and inter relations simultaneously. Last, RR-Net outputs the
probabilities over the edges which link a pair of heterogeneous instances to
estimate the mapping results. Extensive experiments on three example tasks,
i.e., image classification, social recommendation and sound recognition,
clearly demonstrate the superiority and universality of our proposed model.
|
[{'version': 'v1', 'created': 'Fri, 26 Feb 2021 08:56:24 GMT'}]
|
2021-03-01
|
[array(['Li', 'Zun', ''], dtype=object)
array(['Lang', 'Congyan', ''], dtype=object)
array(['Liang', 'Liqian', ''], dtype=object)
array(['Wang', 'Tao', ''], dtype=object)
array(['Feng', 'Songhe', ''], dtype=object)
array(['Wu', 'Jun', ''], dtype=object)
array(['Li', 'Yidong', ''], dtype=object)]
|
18,255 |
2212.05393
|
David Shapiro
|
Alex Verevkin, Alex Bereza, David Shapiro
|
Light Scattering on Two Parallel Subwavelength Cylinders
|
16 pages, 5 figures, bibliography 32
| null | null | null |
physics.optics physics.class-ph
|
http://creativecommons.org/licenses/by/4.0/
|
The plasmon resonance has found important application in various systems,
e.g., nanoantennas, solar panels, refractive index sensors. Unfortunately, a
few analytical solutions for such systems are known. The work aims to find a
solution for scattering by a plane electromagnetic wave on two parallel
cylinders. When their diameters and the gap between them are less than the
radiation wavelength, the quasistatic approximation is valid. We build up a
conformal transformation that maps Cartesian into bipolar orthogonal
coordinates and represent the scattered field as a decomposition by
eigenfunctions of the Laplace operator. The near-field intensity distribution
is shown to coincide with numerical calculation performed by COMSOL
Multiphysics. Green's function obtained allows one to find also higher
decomposition orders. Compared to previous studies, we treat the general case
of cylinders with different diameters and dielectric constants.
|
[{'version': 'v1', 'created': 'Sun, 11 Dec 2022 03:18:39 GMT'}]
|
2022-12-13
|
[array(['Verevkin', 'Alex', ''], dtype=object)
array(['Bereza', 'Alex', ''], dtype=object)
array(['Shapiro', 'David', ''], dtype=object)]
|
18,256 |
2011.05945
|
Shokoufe Faraji
|
Shokoufe Faraji, Audrey Trova
|
Magnetized tori in the background of a deformed compact object
| null |
2021, Astronomy & Astrophysics, Volume 654
|
10.1051/0004-6361/202039957
| null |
astro-ph.HE gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This paper studied the relativistic accretion thick disc model raised by a
deformed compact object that slightly deviated from spherical up to the
quadrupole moment by utilising $\rm q$-metric. This metric is the simplest
asymptotically flat solution of Einstein's equation with quadrupole moment.
This work aims to study the effects of quadrupole moments in combination with
the parameters of the thick magnetised disc model via studying the properties
of these equilibrium sequences of magnetised, non-self-gravitating discs in
this space-time. We employed different angular momentum distributions and
discussed the procedure of building this toroidal disc model based on a
combination of approaches previously considered in the literature. We have
shown the properties of this relativistic accretion disc model and its
dependence on the initial parameters. Besides, this theoretical model can be
served as the initial data for numerical simulations.
|
[{'version': 'v1', 'created': 'Wed, 11 Nov 2020 18:02:52 GMT'}
{'version': 'v2', 'created': 'Sat, 14 Nov 2020 11:05:14 GMT'}
{'version': 'v3', 'created': 'Sat, 21 Nov 2020 20:27:21 GMT'}
{'version': 'v4', 'created': 'Sat, 23 Oct 2021 19:41:23 GMT'}]
|
2021-10-26
|
[array(['Faraji', 'Shokoufe', ''], dtype=object)
array(['Trova', 'Audrey', ''], dtype=object)]
|
18,257 |
2104.06965
|
Ralph Chamberlin
|
Ralph V. Chamberlin, Michael R. Clark, Vladimiro Mujica, and George H.
Wolf
|
Multiscale Thermodynamics: Energy, Entropy, and Symmetry from Atoms to
Bulk Behavior
|
23 pages, 7 figures. arXiv admin note: substantial text overlap with
arXiv:2007.13031
|
Symmetry 13, 721 (2021)
|
10.3390/sym13040721
|
12040721
|
cond-mat.stat-mech cond-mat.mes-hall cond-mat.mtrl-sci cond-mat.quant-gas physics.atm-clus
|
http://creativecommons.org/licenses/by/4.0/
|
Here we investigate how local properties of particles in a thermal bath
influence the thermodynamics of the bath. We utilize nanothermodynamics, based
on two postulates: that small systems can be treated self-consistently by
coupling to an ensemble of similarly small systems, and that a large ensemble
of small systems forms its own thermodynamic bath. We adapt these ideas to
study how a large system may subdivide into an ensemble of smaller subsystems,
causing internal heterogeneity across multiple size scales. For the
semi-classical ideal gas, maximum entropy favors subdividing a large system of
atoms into regions of variable size. The mechanism of region formation could
come from quantum exchange that makes atoms in each region indistinguishable,
while decoherence between regions allows atoms in separate regions to be
distinguishable by location. Combining regions reduces the total entropy, as
expected when distinguishable particles become indistinguishable, and as
required by theorems for sub-additive entropy. Combining large volumes of small
regions gives the entropy of mixing for a semi-classical ideal gas, resolving
Gibbs paradox without invoking quantum symmetry for distant atoms. Other models
we study are based on Ising-like spins in 1-D. We find similarity in the
properties of a two-state model in the nanocanonical ensemble and a three-state
model in the canonical ensemble. Thus, emergent phenomena may alter the thermal
behavior of microscopic models, and the correct ensemble is necessary for
fully-accurate predictions. We add a nonlinear correction to Boltzmann's factor
in simulations of the Ising-like spins to imitate the dynamics of spin exchange
on intermediate lengths, yielding the statistics of indistinguishable states.
These simulations exhibit 1/f-like noise at low frequencies (f), and white
noise at higher f, similar to the thermal fluctuations found in many materials.
|
[{'version': 'v1', 'created': 'Wed, 14 Apr 2021 16:47:32 GMT'}]
|
2022-10-26
|
[array(['Chamberlin', 'Ralph V.', ''], dtype=object)
array(['Clark', 'Michael R.', ''], dtype=object)
array(['Mujica', 'Vladimiro', ''], dtype=object)
array(['Wolf', 'George H.', ''], dtype=object)]
|
18,258 |
2112.04732
|
Lin Li
|
Chuan-Min He, Lin Li, Shang-Jie Chen
|
Nontrivial solution for Klein-Gordon equation coupled with Born-Infeld
theory with critical growth
| null | null | null | null |
math.AP
|
http://creativecommons.org/licenses/by/4.0/
|
In this paper, we study the following system \begin{eqnarray*}
\left\{ \begin{array}{ll}
-\Delta u + V(x)u-(2\omega+\phi)\phi u=\lambda f(u)+|u|^{4}u, \ & \text{in} \
\mathbb{R}^{3},
\Delta \phi + \beta\Delta_4\phi = 4\pi(\omega+\phi) u^{2}, \ & \text{in}\
\mathbb{R}^{3},\\ \end{array} \right. \end{eqnarray*} where $f(u)$ without any
growth and Ambrosetti-Rabinowitz conditions. We use cut-off function and Moser
iteration to obtain the existence of nontrivial solution. Finally, as a
by-product of our approaches, we get the same result for Klein-Gordon-Maxwell
system.
|
[{'version': 'v1', 'created': 'Thu, 9 Dec 2021 07:21:07 GMT'}]
|
2021-12-10
|
[array(['He', 'Chuan-Min', ''], dtype=object)
array(['Li', 'Lin', ''], dtype=object)
array(['Chen', 'Shang-Jie', ''], dtype=object)]
|
18,259 |
2205.00258
|
Chengyu Wang
|
Chengyu Wang, Minghui Qiu, Chen Shi, Taolin Zhang, Tingting Liu, Lei
Li, Jianing Wang, Ming Wang, Jun Huang, Wei Lin
|
EasyNLP: A Comprehensive and Easy-to-use Toolkit for Natural Language
Processing
|
8 pages
| null | null | null |
cs.CL
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
The success of Pre-Trained Models (PTMs) has reshaped the development of
Natural Language Processing (NLP). Yet, it is not easy to obtain
high-performing models and deploy them online for industrial practitioners. To
bridge this gap, EasyNLP is designed to make it easy to build NLP applications,
which supports a comprehensive suite of NLP algorithms. It further features
knowledge-enhanced pre-training, knowledge distillation and few-shot learning
functionalities for large-scale PTMs, and provides a unified framework of model
training, inference and deployment for real-world applications. Currently,
EasyNLP has powered over ten business units within Alibaba Group and is
seamlessly integrated to the Platform of AI (PAI) products on Alibaba Cloud.
The source code of our EasyNLP toolkit is released at GitHub
(https://github.com/alibaba/EasyNLP).
|
[{'version': 'v1', 'created': 'Sat, 30 Apr 2022 13:03:53 GMT'}
{'version': 'v2', 'created': 'Mon, 13 Mar 2023 12:40:23 GMT'}]
|
2023-03-14
|
[array(['Wang', 'Chengyu', ''], dtype=object)
array(['Qiu', 'Minghui', ''], dtype=object)
array(['Shi', 'Chen', ''], dtype=object)
array(['Zhang', 'Taolin', ''], dtype=object)
array(['Liu', 'Tingting', ''], dtype=object)
array(['Li', 'Lei', ''], dtype=object)
array(['Wang', 'Jianing', ''], dtype=object)
array(['Wang', 'Ming', ''], dtype=object)
array(['Huang', 'Jun', ''], dtype=object)
array(['Lin', 'Wei', ''], dtype=object)]
|
18,260 |
cond-mat/0312082
|
Amarendra Swarup
|
R. J. Rivers and A. Swarup
|
The Efficiency of Defect Production in Planar Superconductors and Liquid
Crystals
|
4 pages, no figures
| null | null | null |
cond-mat
| null |
A recent experiment that sees the spontaneous creation of magnetic flux on
quenching high-$T_c$ films has shown that earlier null results were a
consequence of the lack of saturation of the Zurek-Kibble causal bounds against
which flux density was measured. In this letter we estimate how efficient the
production of topological charge is in planar systems, both for the
aforementioned experiment (when flux measures topological charge) and for an
earlier experiment on planar liquid crystals. Agreement is good.
|
[{'version': 'v1', 'created': 'Tue, 2 Dec 2003 23:15:34 GMT'}]
|
2007-05-23
|
[array(['Rivers', 'R. J.', ''], dtype=object)
array(['Swarup', 'A.', ''], dtype=object)]
|
18,261 |
2202.10717
|
Daniel Stilck Franca
|
Christoph Hirche, Cambyse Rouz\'e, Daniel Stilck Fran\c{c}a
|
Quantum Differential Privacy: An Information Theory Perspective
|
Corrected statement on properties of the hockey stick divergence and
parallel composition
| null | null | null |
quant-ph cs.CR cs.IT cs.LG math.IT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Differential privacy has been an exceptionally successful concept when it
comes to providing provable security guarantees for classical computations.
More recently, the concept was generalized to quantum computations. While
classical computations are essentially noiseless and differential privacy is
often achieved by artificially adding noise, near-term quantum computers are
inherently noisy and it was observed that this leads to natural differential
privacy as a feature.
In this work we discuss quantum differential privacy in an information
theoretic framework by casting it as a quantum divergence. A main advantage of
this approach is that differential privacy becomes a property solely based on
the output states of the computation, without the need to check it for every
measurement. This leads to simpler proofs and generalized statements of its
properties as well as several new bounds for both, general and specific, noise
models. In particular, these include common representations of quantum circuits
and quantum machine learning concepts. Here, we focus on the difference in the
amount of noise required to achieve certain levels of differential privacy
versus the amount that would make any computation useless. Finally, we also
generalize the classical concepts of local differential privacy, Renyi
differential privacy and the hypothesis testing interpretation to the quantum
setting, providing several new properties and insights.
|
[{'version': 'v1', 'created': 'Tue, 22 Feb 2022 08:12:50 GMT'}
{'version': 'v2', 'created': 'Sun, 28 Aug 2022 08:55:15 GMT'}
{'version': 'v3', 'created': 'Thu, 6 Apr 2023 08:45:58 GMT'}]
|
2023-04-07
|
[array(['Hirche', 'Christoph', ''], dtype=object)
array(['Rouzé', 'Cambyse', ''], dtype=object)
array(['França', 'Daniel Stilck', ''], dtype=object)]
|
18,262 |
1910.14433
|
Mehmet G\"unay
|
Mehmet G\"unay
|
A binary mixture of Bose-Einstein-condensates in a double-well
potential: Berry phase and two-mode entanglement
|
7 pages, 3 figures
|
Phys. Rev. A 101, 043608 (2020)
|
10.1103/PhysRevA.101.043608
| null |
cond-mat.quant-gas physics.atm-clus physics.atom-ph physics.optics quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A binary mixtures of Bose-Einstein condensate structures exhibit an
incredible richness in terms of holding different kinds of phases. Depending on
the ratio of the inter- and intra-atomic interactions, the transition from
mixed to separated phase, which is also known as the miscibility-immiscibility
transition, has been reported in different setups and by different groups.
Here, we describe such type of quantum phase transition in an effective
Hamiltonian approach, by applying Holstein-Primakoff transformation in the
limit of large number of particles. We demonstrate that non-trivial geometric
phase near the critical coupling is present, which confirms the connection
between Berry phase and quantum phase transition. We also show that, by using
the spin form of Hillery & Zubairy criterion, a two mode entanglement
accompanies this transition in the limit of large, but not infinite number of
particles.
|
[{'version': 'v1', 'created': 'Thu, 31 Oct 2019 13:05:27 GMT'}
{'version': 'v2', 'created': 'Mon, 23 Mar 2020 13:47:03 GMT'}]
|
2020-04-22
|
[array(['Günay', 'Mehmet', ''], dtype=object)]
|
18,263 |
1102.3693
|
Patrizia Romano
|
P. Romano, V. La Parola, G. Cusumano, S. Vercellone (1), P. Esposito
(2), J.A. Kennea, D.N. Burrows (3) H.A. Krimm (4), C. Pagani (5), N. Gehrels
(6) ((1) INAF/IASF-Palermo, (2) INAF-OA Cagliari, (3) PSU, (4)
NASA/GSFC/USRA, (5) Un. of Leicester, (6) NASA/GSFC)
|
A two-year monitoring campaign of Supergiant Fast X-ray Transients with
Swift
|
Proceedings of the 8th INTEGRAL Workshop "The Restless Gamma-ray
Universe", September 27-30 2010, Dublin, Ireland
| null | null | null |
astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Swift is the only observatory which, due to its unique fast-slewing
capability and broad-band energy coverage, can detect outbursts from Supergiant
Fast X-ray Transients (SFXTs) from the very beginning and study their evolution
panchromatically. Thanks to its flexible observing scheduling, which makes
monitoring cost-effective, Swift has also performed a campaign that covers all
phases of the lives of SFXTs with a high sensitivity in the soft X-ray regime,
where most SFXTs had not been observed before. Our continued effort at
monitorning SFXTs with 2-3 observations per week (1-2 ks) with the Swift X-Ray
Telescope (XRT) over their entire visibility period has just finished its
second year. We report on our findings on the long-term properties of SFXTs,
their duty cycle, and the new outbursts caught by Swift during the second year.
|
[{'version': 'v1', 'created': 'Thu, 17 Feb 2011 21:00:09 GMT'}]
|
2011-02-21
|
[array(['Romano', 'P.', ''], dtype=object)
array(['La Parola', 'V.', ''], dtype=object)
array(['Cusumano', 'G.', ''], dtype=object)
array(['Vercellone', 'S.', ''], dtype=object)
array(['Esposito', 'P.', ''], dtype=object)
array(['Kennea', 'J. A.', ''], dtype=object)
array(['Burrows', 'D. N.', ''], dtype=object)
array(['Krimm', 'H. A.', ''], dtype=object)
array(['Pagani', 'C.', ''], dtype=object)
array(['Gehrels', 'N.', ''], dtype=object)]
|
18,264 |
1206.4238
|
Michele Marini
|
Rolando Magnanini, Michele Marini
|
Characterization of ellipses as uniformly dense sets with respect to a
family of convex bodies
| null | null |
10.1007/s10231-013-0334-x
| null |
math.MG math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let K \subset R^N be a convex body containing the origin. A measurable set G
\subset R^N with positive Lebesgue measure is said to be uniformly K-dense if,
for any fixed r > 0, the measure of G \cap (x + rK) is constant when x varies
on the boundary of G (here, x + rK denotes a translation of a dilation of K).
We first prove that G must always be strictly convex and at least C1,1-regular;
also, if K is centrally symmetric, K must be strictly convex, C1,1-regular and
such that K = G - G up to homotheties; this implies in turn that G must be
C2,1- regular. Then for N = 2, we prove that G is uniformly K-dense if and only
if K and G are homothetic to the same ellipse. This result was already proven
by Amar, Berrone and Gianni in [3]. However, our proof removes their regularity
assumptions on K and G and, more importantly, it is susceptible to be
generalized to higher dimension since, by the use of Minkowski's inequality and
an affine inequality, avoids the delicate computations of the higher-order
terms in the Taylor expansion near r = 0 for the measure of G\cap(x+rK) (needed
in [3]).
|
[{'version': 'v1', 'created': 'Tue, 19 Jun 2012 15:34:10 GMT'}
{'version': 'v2', 'created': 'Sun, 4 Aug 2013 15:07:47 GMT'}]
|
2013-08-06
|
[array(['Magnanini', 'Rolando', ''], dtype=object)
array(['Marini', 'Michele', ''], dtype=object)]
|
18,265 |
2202.08330
|
Takashi Owada
|
Gennady Samorodnitsky and Takashi Owada
|
Large deviations for subcomplex counts and Betti numbers in
multi-parameter simplicial complexes
| null | null | null | null |
math.PR
|
http://creativecommons.org/licenses/by/4.0/
|
We consider the multi-parameter random simplicial complex as a higher
dimensional extension of the classical Erd\"os-R\'enyi graph. We investigate
appearance of "unusual" topological structures in the complex from the point of
view of large deviations. We first study upper tail large deviation
probabilities for subcomplex counts, deriving the order of magnitude of such
probabilities at the logarithmic scale precision. The obtained results are then
applied to analyze large deviations for the number of simplices at the critical
dimension and below. Finally, these results are also used to deduce large
deviation estimates for Betti numbers of the complex in the critical dimension.
|
[{'version': 'v1', 'created': 'Wed, 16 Feb 2022 21:04:52 GMT'}]
|
2022-02-18
|
[array(['Samorodnitsky', 'Gennady', ''], dtype=object)
array(['Owada', 'Takashi', ''], dtype=object)]
|
18,266 |
2209.00324
|
Kevin MacDonald
|
Tongjun Liu, Jun-Yu Ou, Kevin F. MacDonald, Nikolay I. Zheludev
|
Photonic Metamaterial Analogue of a Continuous Time Crystal
|
10 pages, 6 figures
|
Nat. Phys. (2023)
|
10.1038/s41567-023-02023-5
| null |
physics.optics cond-mat.mes-hall
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
Time crystals are an eagerly sought phase of matter with broken
time-translation symmetry. Quantum time crystals with discretely broken
time-translation symmetry have been demonstrated in trapped ions, atoms and
spins while continuously broken time-translation symmetry has been observed in
an atomic condensate inside an optical cavity. Here we report that a classical
metamaterial nanostructure, a two-dimensional array of plasmonic metamolecules
supported on flexible nanowires, can be driven to a state possessing all of the
key features of a continuous time crystal: continuous coherent illumination by
light resonant with the metamolecules' plasmonic mode triggers a spontaneous
phase transition to a superradiant-like state of transmissivity oscillations,
resulting from many-body interactions among the metamolecules, characterized by
long-range order in space and time. The phenomenon is of interest to the study
of dynamic classical many-body states in the strongly correlated regime and
applications in all-optical modulation, frequency conversion and timing.
|
[{'version': 'v1', 'created': 'Thu, 1 Sep 2022 09:51:13 GMT'}
{'version': 'v2', 'created': 'Wed, 14 Sep 2022 09:42:43 GMT'}
{'version': 'v3', 'created': 'Mon, 30 Jan 2023 18:41:45 GMT'}]
|
2023-04-24
|
[array(['Liu', 'Tongjun', ''], dtype=object)
array(['Ou', 'Jun-Yu', ''], dtype=object)
array(['MacDonald', 'Kevin F.', ''], dtype=object)
array(['Zheludev', 'Nikolay I.', ''], dtype=object)]
|
18,267 |
2205.00311
|
Jes\'us Pe\~na-Rodr\'iguez Mr.
|
J. Pe\~na-Rodr\'iguez, P. Salgado-Meza, L. Fl\'orez-Villegas and L. A.
N\'u\~nez
|
A lightning monitoring system for studying transient phenomena in cosmic
ray observatories
| null | null | null | null |
physics.ao-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
During thunderstorms, the atmospheric electric field can increase above
hundreds of kV/m, causing an acceleration in the charged particles of secondary
cosmic rays. Such an acceleration causes avalanche processes in the atmosphere,
enhancing/reducing the particle flux at ground level depending on the
strength/polarity of the electric field. We present the design and
implementation of a self-triggered and fast-recording lightning monitoring
system used to study the transient electric field atmospheric effect on the
secondary particle flux above cosmic ray observatories. The acquisition device
records lightning electric field at 10 $\mu$s resolution (during 1.2 s per
event), covering a detection range up to 200 km ($I_{peak} >$ 100 kA)
|
[{'version': 'v1', 'created': 'Sat, 30 Apr 2022 17:29:36 GMT'}]
|
2022-05-03
|
[array(['Peña-Rodríguez', 'J.', ''], dtype=object)
array(['Salgado-Meza', 'P.', ''], dtype=object)
array(['Flórez-Villegas', 'L.', ''], dtype=object)
array(['Núñez', 'L. A.', ''], dtype=object)]
|
18,268 |
1303.2803
|
Christian R\"over
|
Simon M. Steinvorth, Christian R\"over, Simon Schneider, Richard
Nicholas, Sebastian Straube, Tim Friede
|
Explaining temporal trends in annualized relapse rates in placebo groups
of randomized controlled trials in relapsing multiple sclerosis: systematic
review and meta-regression
|
20 pages, 4 figures (main article) + 13 pages (web appendix)
|
Multiple Sclerosis Journal, 19(12):1580-1586, 2013
|
10.1177/1352458513481009
| null |
stat.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Background: Recent studies have shown a decrease in annualised relapse rates
(ARRs) in placebo groups of randomised controlled trials (RCTs) in relapsing
multiple sclerosis (RMS).
Methods: We conducted a systematic literature search of RCTs in RMS. Data on
eligibility criteria and baseline characteristics were extracted and tested for
significant trends over time. A meta-regression was conducted to estimate their
contribution to the decrease of trial ARRs over time.
Results: We identified 56 studies. Patient age at baseline (p < 0.001), mean
duration of multiple sclerosis (MS) at baseline (p = 0.048), size of treatment
groups (p = 0.003), Oxford Quality Scale scores (p = 0.021), and the number of
eligibility criteria (p<0.001) increased significantly, whereas pre-trial ARR
(p = 0.001), the time span over which pre-trial ARR was calculated (p < 0.001),
and the duration of placebo-controlled follow-up (p = 0.006) decreased
significantly over time. In meta-regression of trial placebo ARR, the temporal
trend was found to be insignificant, with major factors explaining the
variation: pre-trial ARR, the number of years used to calculate pre-trial ARR
and study duration. Conclusion: The observed decline in trial ARRs may result
from decreasing pre-trial ARRs and a shorter time period over which pre-trial
ARRs were calculated. Increasing patient age and duration of illness may also
contribute.
|
[{'version': 'v1', 'created': 'Tue, 12 Mar 2013 08:31:19 GMT'}
{'version': 'v2', 'created': 'Mon, 17 Mar 2014 08:18:14 GMT'}]
|
2014-03-18
|
[array(['Steinvorth', 'Simon M.', ''], dtype=object)
array(['Röver', 'Christian', ''], dtype=object)
array(['Schneider', 'Simon', ''], dtype=object)
array(['Nicholas', 'Richard', ''], dtype=object)
array(['Straube', 'Sebastian', ''], dtype=object)
array(['Friede', 'Tim', ''], dtype=object)]
|
18,269 |
1504.05319
|
Gabriela Ferraro
|
Lizhen Qu, Gabriela Ferraro, Liyuan Zhou, Weiwei Hou, Nathan Schneider
and Timothy Baldwin
|
Big Data Small Data, In Domain Out-of Domain, Known Word Unknown Word:
The Impact of Word Representation on Sequence Labelling Tasks
| null | null | null | null |
cs.CL
|
http://creativecommons.org/licenses/by-nc-sa/3.0/
|
Word embeddings -- distributed word representations that can be learned from
unlabelled data -- have been shown to have high utility in many natural
language processing applications. In this paper, we perform an extrinsic
evaluation of five popular word embedding methods in the context of four
sequence labelling tasks: POS-tagging, syntactic chunking, NER and MWE
identification. A particular focus of the paper is analysing the effects of
task-based updating of word representations. We show that when using word
embeddings as features, as few as several hundred training instances are
sufficient to achieve competitive results, and that word embeddings lead to
improvements over OOV words and out of domain. Perhaps more surprisingly, our
results indicate there is little difference between the different word
embedding methods, and that simple Brown clusters are often competitive with
word embeddings across all tasks we consider.
|
[{'version': 'v1', 'created': 'Tue, 21 Apr 2015 06:58:26 GMT'}
{'version': 'v2', 'created': 'Wed, 20 May 2015 05:50:17 GMT'}]
|
2015-05-21
|
[array(['Qu', 'Lizhen', ''], dtype=object)
array(['Ferraro', 'Gabriela', ''], dtype=object)
array(['Zhou', 'Liyuan', ''], dtype=object)
array(['Hou', 'Weiwei', ''], dtype=object)
array(['Schneider', 'Nathan', ''], dtype=object)
array(['Baldwin', 'Timothy', ''], dtype=object)]
|
18,270 |
1210.4263
|
Gabriel Kerneis
|
Matthieu Boutier (PPS), Gabriel Kerneis (PPS)
|
Generating events with style
|
Submitted for publication
| null | null | null |
cs.PL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Threads and events are two common abstractions for writing concurrent
programs. Because threads are often more convenient, but events more efficient,
it is natural to want to translate the former into the latter. However, whereas
there are many different event-driven styles, existing translators often apply
ad-hoc rules which do not reflect this diversity. We analyse various
control-flow and data-flow encodings in real-world event-driven code, and we
observe that it is possible to generate any of these styles automatically from
threaded code, by applying certain carefully chosen classical program
transformations. In particular, we implement two of these transformations,
lambda lifting and environments, in CPC, an extension of the C language for
writing concurrent systems. Finally, we find out that, although rarely used in
real-world programs because it is tedious to perform manually, lambda lifting
yields better performance than environments in most of our benchmarks.
|
[{'version': 'v1', 'created': 'Tue, 16 Oct 2012 06:35:59 GMT'}
{'version': 'v2', 'created': 'Wed, 17 Oct 2012 13:38:02 GMT'}]
|
2012-10-18
|
[array(['Boutier', 'Matthieu', '', 'PPS'], dtype=object)
array(['Kerneis', 'Gabriel', '', 'PPS'], dtype=object)]
|
18,271 |
1011.2701
|
Aleksandr Pishtshev
|
Aleksandr Pishtshev
|
Contribution of interband effects caused by long-wavelength transverse
optical phonons to electron-phonon coupling in doped polar insulators
|
5 pages, 3 tables
| null |
10.1016/j.physb.2011.04.062
| null |
cond-mat.mtrl-sci cond-mat.supr-con
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We estimate the contribution of the long-wavelength el-TO-ph interaction and
discuss the effect it has on electron pairing in doped polar systems like
SrTiO3 and PbTe. The analytical and numerical results presented in the study
indicate that the el-TO-ph interaction tends to contribute little to the total
strength of electron-phonon coupling in these and related materials. To explain
this fact we consider possible reasons why the effect of the polar
long-wavelength transverse optical phonons on the coupling constant "lambda" is
far less than one might suppose.
|
[{'version': 'v1', 'created': 'Thu, 11 Nov 2010 16:35:39 GMT'}]
|
2015-05-20
|
[array(['Pishtshev', 'Aleksandr', ''], dtype=object)]
|
18,272 |
1109.0918
|
Matthias Bechmann
|
Matthias Bechmann, Angelika Sebald, Susan Stepney
|
Boolean logic gate design principles in unconventional computers: an NMR
case study
| null |
International Journal of Unconventional Computing, 2012, 8,
139-159
| null | null |
cs.ET cond-mat.other
|
http://creativecommons.org/licenses/by/3.0/
|
We present a general method for analysing novel computational substrates to
determine which of their parameters can be manipulated to exhibit the complete
set of 2-input boolean logical operations. We demonstrate this approach with an
NMR-based case study, showing which NMR parameters can be used to perform
boolean logic.
|
[{'version': 'v1', 'created': 'Mon, 5 Sep 2011 14:45:12 GMT'}]
|
2013-06-04
|
[array(['Bechmann', 'Matthias', ''], dtype=object)
array(['Sebald', 'Angelika', ''], dtype=object)
array(['Stepney', 'Susan', ''], dtype=object)]
|
18,273 |
physics/0701315
|
Feng Fu
|
Jing Wang, Feng Fu, Long Wang, and Guangming Xie
|
Evolutionary game dynamics with three strategies in finite populations
|
Fixation probability calculation for 3-player games
| null | null | null |
physics.soc-ph
| null |
We propose a model for evolutionary game dynamics with three strategies $A$,
$B$ and $C$ in the framework of Moran process in finite populations. The model
can be described as a stochastic process which can be numerically computed from
a system of linear equations. Furthermore, to capture the feature of the
evolutionary process, we define two essential variables, the {\em global} and
the {\em local} fixation probability. If the {\em global} fixation probability
of strategy $A$ exceeds the neutral fixation probability, the selection favors
$A$ replacing $B$ or $C$ no matter what the initial ratio of $B$ to $C$ is.
Similarly, if the {\em local} fixation probability of $A$ exceeds the neutral
one, the selection favors $A$ replacing $B$ or $C$ only in some appropriate
initial ratios of $B$ to $C$. Besides, using our model, the famous game with
AllC, AllD and TFT is analyzed. Meanwhile, we find that a single individual TFT
could invade the entire population under proper conditions.
|
[{'version': 'v1', 'created': 'Mon, 29 Jan 2007 07:03:21 GMT'}]
|
2007-05-23
|
[array(['Wang', 'Jing', ''], dtype=object)
array(['Fu', 'Feng', ''], dtype=object)
array(['Wang', 'Long', ''], dtype=object)
array(['Xie', 'Guangming', ''], dtype=object)]
|
18,274 |
2204.08546
|
Taylor Murphy
|
Linda M. Carpenter, Taylor Murphy, and Matthew J. Smylie
|
Changing patterns in electroweak precision with new color-charged
states: Oblique corrections and the $W$ boson mass
|
11 pages, 4 figures. Updated to resemble Phys. Rev. D Version of
Record
|
Phys. Rev. D 106, 055005 (2022)
|
10.1103/PhysRevD.106.055005
| null |
hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The recent measurement by the CDF Collaboration of the $W$ boson mass is in
significant tension with the Standard Model expectation, showing a discrepancy
of seven standard deviations. A larger value of $m_W$ affects the global
electroweak fit, particularly the best-fit values of the Peskin-Takeuchi
parameters $S$, $T$ (and perhaps $U$) that measure oblique corrections from new
physics. To meet this challenge, we propose some simple models capable of
generating non-negative $S$ and $T$, the latter of which faces the greatest
upward pressure from the CDF measurement in scenarios with $U=0$. Our models
feature weak multiplets of scalars charged under $\mathrm{SU}(3)_{\text{c}}
\times \mathrm{U}(1)_Y$, which cannot attain nonzero vacuum expectation values
but nevertheless produce e.g. $T \neq 0$ given some other mechanism to split
the electrically charged and neutral scalars. We compute the oblique
corrections in these models and identify ample parameter space supporting the
CDF value of $m_W$.
|
[{'version': 'v1', 'created': 'Mon, 18 Apr 2022 20:20:21 GMT'}
{'version': 'v2', 'created': 'Tue, 6 Sep 2022 19:23:54 GMT'}]
|
2022-09-08
|
[array(['Carpenter', 'Linda M.', ''], dtype=object)
array(['Murphy', 'Taylor', ''], dtype=object)
array(['Smylie', 'Matthew J.', ''], dtype=object)]
|
18,275 |
1403.7760
|
Ernst-Erich Doberkat
|
Ernst-Erich Doberkat
|
Categories and all that -- A Tutorial
| null | null | null |
SWT-Memo-198
|
cs.LO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This is a short introduction to categories with some emphasis on coalgebras.
We start from introducing basic notions (categories, functors, natural
transformations), move to Kleisli tripels and monads, with a short discussion
of monads in Haskell, and continue with displaying the interplay between
algebras, adjunctions and monads. Coalgebras are discussed and applied to the
semantics of modal logics, giving a brief introduction to coalgebraic logics as
well. The development is illustrated through examples, usually taken from
applications to computer science, with a certain predilection for stochastic
systems.
|
[{'version': 'v1', 'created': 'Sun, 30 Mar 2014 13:51:33 GMT'}
{'version': 'v2', 'created': 'Wed, 8 Oct 2014 11:50:15 GMT'}]
|
2014-10-09
|
[array(['Doberkat', 'Ernst-Erich', ''], dtype=object)]
|
18,276 |
2302.13343
|
Nasir Saeed
|
Rania Djehaiche, Salih Aidel, Ahmad Sawalmeh, Nasir Saeed Senior
Member, Ali H. Alenezi
|
Adaptive Control of IoT/M2M Devices in Smart Buildings using
Heterogeneous Wireless Networks
|
Accepted in IEEE Sensors Journal
| null | null | null |
cs.NI cs.SY eess.SY
|
http://creativecommons.org/licenses/by/4.0/
|
With the rapid development of wireless communication technology, the Internet
of Things (IoT) and Machine-to-Machine (M2M) are becoming essential for many
applications. One of the most emblematic IoT/M2M applications is smart
buildings. The current Building Automation Systems (BAS) are limited by many
factors, including the lack of integration of IoT and M2M technologies,
unfriendly user interfacing, and the lack of a convergent solution. Therefore,
this paper proposes a better approach of using heterogeneous wireless networks
consisting of Wireless Sensor Networks (WSNs) and Mobile Cellular Networks
(MCNs) for IoT/M2M smart building systems. One of the most significant outcomes
of this research is to provide accurate readings to the server, and very low
latency, through which users can easily control and monitor remotely the
proposed system that consists of several innovative services, namely smart
parking, garden irrigation automation, intrusion alarm, smart door, fire and
gas detection, smart lighting, smart medication reminder, and indoor air
quality monitoring. All these services are designed and implemented to control
and monitor from afar the building via our free mobile application named Raniso
which is a local server that allows remote control of the building. This
IoT/M2M smart building system is customizable to meet the needs of users,
improving safety and quality of life while reducing energy consumption.
Additionally, it helps prevent the loss of resources and human lives by
detecting and managing risks.
|
[{'version': 'v1', 'created': 'Sun, 26 Feb 2023 16:30:39 GMT'}]
|
2023-02-28
|
[array(['Djehaiche', 'Rania', ''], dtype=object)
array(['Aidel', 'Salih', ''], dtype=object)
array(['Sawalmeh', 'Ahmad', ''], dtype=object)
array(['Member', 'Nasir Saeed Senior', ''], dtype=object)
array(['Alenezi', 'Ali H.', ''], dtype=object)]
|
18,277 |
1402.6568
|
Robert Knobloch
|
Christian Bender, Robert Knobloch, Philip Oberacker
|
A generalised It\=o formula for L\'evy-driven Volterra processes
|
Stochastic Processes and their Applications (2015),
http://dx.doi.org/10.1016/j.spa.2015.02.009
| null |
10.1016/j.spa.2015.02.009
| null |
math.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We derive a generalised It\=o formula for stochastic processes which are
constructed by a convolution of a deterministic kernel with a centred L\'evy
process. This formula has a unifying character in the sense that it contains
the classical It\=o formula for L\'evy processes as well as recent
change-of-variable formulas for Gaussian processes such as fractional Brownian
motion as special cases. Our result also covers fractional L\'evy processes
(with Mandelbrot-Van Ness kernel) and a wide class of related processes for
which such a generalised It\=o formula has not yet been available in the
literature.
|
[{'version': 'v1', 'created': 'Wed, 26 Feb 2014 15:22:06 GMT'}
{'version': 'v2', 'created': 'Wed, 6 Aug 2014 16:47:10 GMT'}
{'version': 'v3', 'created': 'Mon, 2 Mar 2015 13:44:58 GMT'}]
|
2015-03-03
|
[array(['Bender', 'Christian', ''], dtype=object)
array(['Knobloch', 'Robert', ''], dtype=object)
array(['Oberacker', 'Philip', ''], dtype=object)]
|
18,278 |
1311.1863
|
Tatsuro Shimizu
|
Tatsuro Shimizu
|
An invariant of rational homology 3-spheres via vector fields
|
27 pages
|
Algebr. Geom. Topol. 16 (2016) 3073-3101
|
10.2140/agt.2016.16.3073
| null |
math.GT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We define an invariant of rational homology 3-spheres via vector fields. The
construction of our invariant is a generalization of both that of the
Kontsevich-Kuperberg-Thurston invariant and that of Watanabe's Morse homotopy
invariant, which implies the equivalence of these two invariants.
|
[{'version': 'v1', 'created': 'Fri, 8 Nov 2013 01:45:21 GMT'}]
|
2016-12-21
|
[array(['Shimizu', 'Tatsuro', ''], dtype=object)]
|
18,279 |
1411.6772
|
Erwan Bigan
|
Erwan Bigan, St\'ephane Douady and Jean-Marc Steyaert
|
On necessary and sufficient conditions for proto-cell stationary growth
|
Fifth International Workshop on Static Analysis and Systems Biology
(SASB 2014), Munich, Sept 10, 2014. To be published in Electronic Notes in
Theoretical Computer Science
| null | null | null |
q-bio.MN
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider a generic proto-cell model consisting of any conservative
chemical reaction network embedded within a membrane. The membrane results from
the self-assembly of one of the chemical species (membrane precursor) and is
semi-permeable to some other chemical species (nutrients) diffusing from an
outside growth medium into the proto-cell. Inside the proto-cell, nutrients are
metabolized into all other chemical species including the membrane precursor,
and the membrane grows in area and the proto-cell in volume. Investigating the
conditions under which such a proto-cell may reach stationary growth, we prove
that a simple necessary condition is that each moiety be fed with some nutrient
flux; and that a sufficient condition for the existence of a stationary growth
regime is that every siphon containing any species participating in the
membrane precursor incorporation kinetics also contains the support of a moiety
that is fed with some nutrient flux. These necessary and sufficient conditions
hold regardless of chemical reaction kinetics, membrane parameters or nutrient
flux diffusion characteristics.
|
[{'version': 'v1', 'created': 'Tue, 25 Nov 2014 09:01:17 GMT'}]
|
2014-11-26
|
[array(['Bigan', 'Erwan', ''], dtype=object)
array(['Douady', 'Stéphane', ''], dtype=object)
array(['Steyaert', 'Jean-Marc', ''], dtype=object)]
|
18,280 |
2108.11832
|
Dmitriy Drusvyatskiy
|
Damek Davis, Dmitriy Drusvyatskiy, Liwei Jiang
|
Active manifolds, stratifications, and convergence to local minima in
nonsmooth optimization
|
Version 1 of the arxiv report has been split into two parts. Version
2 of the arxiv report is Part 1 of the original submission. Part 2 will
appear as a separate arxiv submission
| null | null | null |
math.OC cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that the subgradient method converges only to local minimizers when
applied to generic Lipschitz continuous and subdifferentially regular functions
that are definable in an o-minimal structure. At a high level, the argument we
present is appealingly transparent: we interpret the nonsmooth dynamics as an
approximate Riemannian gradient method on a certain distinguished submanifold
that captures the nonsmooth activity of the function. In the process, we
develop new regularity conditions in nonsmooth analysis that parallel the
stratification conditions of Whitney, Kuo, and Verdier and extend stochastic
processes techniques of Pemantle.
|
[{'version': 'v1', 'created': 'Thu, 26 Aug 2021 15:02:16 GMT'}
{'version': 'v2', 'created': 'Mon, 9 Jan 2023 17:14:21 GMT'}]
|
2023-01-10
|
[array(['Davis', 'Damek', ''], dtype=object)
array(['Drusvyatskiy', 'Dmitriy', ''], dtype=object)
array(['Jiang', 'Liwei', ''], dtype=object)]
|
18,281 |
hep-ph/0112104
|
Joao Pulido
|
Joao Pulido (CFIF-IST, Lisboa, Portugal)
|
Solar Neutrinos with Magnetic Moment: Rates and Global Analysis
|
Latex, 16 pages, 3 figures
|
Astropart.Phys.18:173-181,2002
|
10.1016/S0927-6505(02)00106-8
| null |
hep-ph
| null |
A statistical analysis of the solar neutrino data is presented assuming the
solar neutrino deficit to be resolved by the resonant interaction of the
neutrino magnetic moment with the solar magnetic field. Four field profiles are
investigated, all exhibiting a rapid increase across the bottom of the
convective zone, one of them closely following the requirements from recent
solar physics investigations. First a 'rates only' analysis is performed whose
best fits appear to be remarkably better than all fits from oscillations. A
global analysis then follows with the corresponding best fits of a comparable
quality to the LMA one. Despite the fact that the resonant spin flavour
precession does not predict any day/night effect, the separate SuperKamiokande
day and night data are included in the analysis in order to allow for a direct
comparison with oscillation scenarios. Remarkably enough, the best fit for
rates and global analysis which is compatible with most astrophysical bounds on
the neutrino magnetic moment is obtained from the profile which most closely
follows solar physics requirements. Allowing for a peak field value of
$3\times10^5G$, it is found in this case that $\Delta
m^2_{21}=1.45\times10^{-8}eV^2$, $\mu_{\nu}=3.2\times10^{-12}\mu_{B}$ (65%CL).
The new forthcoming experiments on solar neutrino physics (Kamland and
Borexino) will be essential to ascertain whether this fact is incidental or
essential.
|
[{'version': 'v1', 'created': 'Thu, 6 Dec 2001 20:49:09 GMT'}
{'version': 'v2', 'created': 'Wed, 23 Jan 2002 20:12:02 GMT'}]
|
2011-05-23
|
[array(['Pulido', 'Joao', '', 'CFIF-IST, Lisboa, Portugal'], dtype=object)]
|
18,282 |
1704.03512
|
Anouar Ben Mabrouk
|
Sabrine Arfaoui and Anouar Ben Mabrouk
|
Some Ultraspheroidal Monogenic Clifford Gegenbauer Jacobi Polynomials
and Associated Wavelets
|
23 pages
| null | null | null |
math.CA math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In the present paper, new classes of wavelet functions are presented in the
framework of Clifford analysis. Firstly, some classes of orthogonal polynomials
are provided based on 2-parameters weight functions. Such classes englobe the
well known ones of Jacobi and Gegenbauer polynomials when relaxing one of the
parameters. The discovered polynomial sets are next applied to introduce new
wavelet functions. Reconstruction formula as well as Fourier-Plancherel rules
have been proved.
|
[{'version': 'v1', 'created': 'Thu, 6 Apr 2017 21:10:03 GMT'}]
|
2017-04-13
|
[array(['Arfaoui', 'Sabrine', ''], dtype=object)
array(['Mabrouk', 'Anouar Ben', ''], dtype=object)]
|
18,283 |
2306.11148
|
Lenore Mullin
|
Lenore M. R. Mullin
|
From array algebra to energy efficiency on GPUs: Data and hardware
shapes with dimension-lifting to optimize memory-processor layouts
|
9 pages, 12 figures
| null | null | null |
cs.DC cs.MS
|
http://creativecommons.org/licenses/by/4.0/
|
We present a new formulation for parallel matrix multiplication (MM) to
out-perform the standard row-column code design. This algorithm is formulated
in the MoA formalism (A Mathematics of Arrays) and combines an array view of
hardware (dimension-lifting) to extend indexing to physical memory/processing
units, with a contiguous data layout derived from static transformations. This
view of a hardware-software model is thus a bridging model in the sense of
Valiant's BSP. OpenACCcode was derived from the MoA expressions's normal form,
producing optimal block sizes using the static information of types and shapes.
Experiments were run on Nvidia V100 GPUs and reveal energy consumption which is
quadratic in N, i.e. linear in the size of matrix. More generally this approach
may be an ideal way of formulating, optimizing, and mapping array algorithms to
embedded hardware. This work builds upon recently published results of NREL
scientists.
.
|
[{'version': 'v1', 'created': 'Mon, 19 Jun 2023 20:10:23 GMT'}]
|
2023-06-21
|
[array(['Mullin', 'Lenore M. R.', ''], dtype=object)]
|
18,284 |
hep-th/9506019
|
Weber
|
U. Ellwanger, M. Hirsch and A. Weber
|
Flow Equations for the Relevant Part of the Pure Yang-Mills Action
|
21 pages, standard LaTeX, 6 uuencoded figures
|
Z.Phys. C69 (1996) 687-698
| null |
LPTHE Orsay 95-39
|
hep-th
| null |
Wilson's exact renormalization group equations are derived and integrated for
the relevant part of the pure Yang-Mills action. We discuss in detail how
modified Slavnov-Taylor identities controle the breaking of BRST invariance in
the presence of a finite infrared cutoff $k$ through relations among different
parameters in the effective action. In particular they imply a nonvanishing
gluon mass term for nonvanishing $k$. The requirement of consistency between
the renormalization group flow and the modified Slavnov- Taylor identities
allows to control the self-consistency of truncations of the effective action.
|
[{'version': 'v1', 'created': 'Fri, 2 Jun 1995 18:16:18 GMT'}]
|
2007-05-23
|
[array(['Ellwanger', 'U.', ''], dtype=object)
array(['Hirsch', 'M.', ''], dtype=object)
array(['Weber', 'A.', ''], dtype=object)]
|
18,285 |
1611.00738
|
Vasilis Oikonomou
|
S.D. Odintsov, V.K. Oikonomou
|
Inverse Symmetric Inflationary Attractors
|
Affiliation is corrected
| null |
10.1088/1361-6382/aa69a8
| null |
gr-qc astro-ph.CO hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present a class of inflationary potentials which are invariant under a
special symmetry, which depends on the parameters of the models. As we show, in
certain limiting cases, the inverse symmetric potentials are qualitatively
similar to the $\alpha$-attractors models, since the resulting observational
indices are identical. However, there are some quantitative differences which
we discuss in some detail. As we show, some inverse symmetric models always
yield results compatible with observations, but this strongly depends on the
asymptotic form of the potential at large $e$-folding numbers. In fact when the
limiting functional form is identical to the one corresponding to the
$\alpha$-attractors models, the compatibility with the observations is
guaranteed. Also we find the relation of the inverse symmetric models with the
Starobinsky model and we highlight the differences. In addition, an alternative
inverse symmetric model is studied and as we show, not all the inverse
symmetric models are viable. Moreover, we study the corresponding $F(R)$
gravity theory and we show that the Jordan frame theory belongs to the $R^2$
attractor class of models. Finally we discuss a non-minimally coupled theory
and we show that the attractor behavior occurs in this case too.
|
[{'version': 'v1', 'created': 'Wed, 2 Nov 2016 19:31:58 GMT'}
{'version': 'v2', 'created': 'Thu, 30 Mar 2017 15:08:31 GMT'}
{'version': 'v3', 'created': 'Wed, 8 Nov 2017 12:31:03 GMT'}]
|
2017-11-09
|
[array(['Odintsov', 'S. D.', ''], dtype=object)
array(['Oikonomou', 'V. K.', ''], dtype=object)]
|
18,286 |
hep-th/0208171
|
Hiroshi Umetsu
|
Hiroshi Umetsu, Naoto Yokoi
|
Comments on Quantum Aspects of Three-Dimensional de Sitter Gravity
|
25 pages, LaTeX, typos corrected. References are added
|
Nucl.Phys. B650 (2003) 420-442
|
10.1016/S0550-3213(02)01074-X
|
KEK-TH-834, ICRR-Report-491-2002-9
|
hep-th gr-qc
| null |
We investigate the quantum aspects of three-dimensional gravity with a
positive cosmological constant. The reduced phase space of the
three-dimensional de Sitter gravity is obtained as the space which consists of
the Kerr-de Sitter space-times and their Virasoro deformations. A quantization
of the phase space is carried out by the geometric quantization of the
coadjoint orbits of the asymptotic Virasoro symmetries. The Virasoro algebras
with real central charges are obtained as the quantum asymptotic symmetries.
The states of globally de Sitter and point particle solutions become the
primary states of the unitary irreducible representations of the Virasoro
algebras. It is shown that those states are perturbatively stable at the
quantum level. The Virasoro deformations of these solutions correspond to the
excited states in the unitary irreducible representations. In view of the
dS/CFT correspondence, we also study the relationship between the Liouville
field theory obtained by a reduction of the SL(2;$\mathbb{C}$) Chern-Simons
theory and the three-dimensional gravity both classically and quantum
mechanically. In the analyses of the both theories, the Kerr-de Sitter
geometries with nonzero angular momenta do not give the unitary representations
of the Virasoro algebras.
|
[{'version': 'v1', 'created': 'Fri, 23 Aug 2002 11:32:31 GMT'}
{'version': 'v2', 'created': 'Sat, 7 Sep 2002 14:17:47 GMT'}
{'version': 'v3', 'created': 'Sun, 8 Dec 2002 16:16:32 GMT'}]
|
2010-04-05
|
[array(['Umetsu', 'Hiroshi', ''], dtype=object)
array(['Yokoi', 'Naoto', ''], dtype=object)]
|
18,287 |
2108.07848
|
Kanav Vats
|
Kanav Vats, Mehrnaz Fani, David A. Clausi and John Zelek
|
Multi-task learning for jersey number recognition in Ice Hockey
|
Accepted to the 4th International ACM Workshop on Multimedia Content
Analysis in Sports
| null | null | null |
cs.CV
|
http://creativecommons.org/licenses/by/4.0/
|
Identifying players in sports videos by recognizing their jersey numbers is a
challenging task in computer vision. We have designed and implemented a
multi-task learning network for jersey number recognition. In order to train a
network to recognize jersey numbers, two output label representations are used
(1) Holistic - considers the entire jersey number as one class, and (2)
Digit-wise - considers the two digits in a jersey number as two separate
classes. The proposed network learns both holistic and digit-wise
representations through a multi-task loss function. We determine the optimal
weights to be assigned to holistic and digit-wise losses through an ablation
study. Experimental results demonstrate that the proposed multi-task learning
network performs better than the constituent holistic and digit-wise
single-task learning networks.
|
[{'version': 'v1', 'created': 'Tue, 17 Aug 2021 19:33:28 GMT'}]
|
2021-08-19
|
[array(['Vats', 'Kanav', ''], dtype=object)
array(['Fani', 'Mehrnaz', ''], dtype=object)
array(['Clausi', 'David A.', ''], dtype=object)
array(['Zelek', 'John', ''], dtype=object)]
|
18,288 |
2305.15569
|
Yifu Cao
|
Yifu Cao, Chandan Setty, Laura Fanfarillo, Andreas Kreisel and P.J.
Hirschfeld
|
Microscopic origins of ultranodal states in spin-1/2 systems
|
13 pages, 5 figures
| null | null | null |
cond-mat.supr-con
|
http://creativecommons.org/licenses/by/4.0/
|
Several unconventional superconductors show indications of zero-energy
excitations in the superconducting state consistent with the existence of a
so-called Bogoliubov Fermi surface (BFS). In particular, FeSe doped with S
seems to acquire a nonzero density of states at zero energy at low temperatures
when doped into the tetragonal phase, consistent with a previously proposed
phenomenological theory assuming an anisotropic spin singlet pairing gap
coexisting with a nonunitary interband triplet component. Here we search for a
microscopic model that can support the coexistence of singlet pairing with
other orders, including interband nonunitary triplet pairing, and discuss
several candidates that indeed stabilize ground states with Bogoliubov Fermi
surfaces. We show that with proper choice of the coupling strength of the
various orders in our model, spontaneous breaking of $C_4$ rotational symmetry
is realized at low temperatures, in accordance with recent angle-resolved
photoemission experiments in Fe(Se,S) in the tetragonal phase.
|
[{'version': 'v1', 'created': 'Wed, 24 May 2023 21:01:29 GMT'}]
|
2023-05-26
|
[array(['Cao', 'Yifu', ''], dtype=object)
array(['Setty', 'Chandan', ''], dtype=object)
array(['Fanfarillo', 'Laura', ''], dtype=object)
array(['Kreisel', 'Andreas', ''], dtype=object)
array(['Hirschfeld', 'P. J.', ''], dtype=object)]
|
18,289 |
cond-mat/0502252
|
Indranil Paul
|
I. Paul, C. P\'epin, B. N. Narozhny, and D. L. Maslov
|
Quantum Correction to Conductivity Close to Ferromagnetic Quantum
Critical Point in Two Dimensions
|
5 pages, 1 figure
|
Phys. Rev. Lett. \bf{95}, 017206 (2005)
|
10.1103/PhysRevLett.95.017206
| null |
cond-mat.str-el cond-mat.dis-nn
| null |
We study the temperature dependence of the conductivity due to quantum
interference processes for a two-dimensional disordered itinerant electron
system close to a ferromagnetic quantum critical point. Near the quantum
critical point, the cross-over between diffusive and ballistic regimes of
quantum interference effects occurs at a temperature $ T^{\ast}=1/\tau \gamma
(E_{F}\tau)^{2}$, where $\gamma $ is the parameter associated with the Landau
damping of the spin fluctuations, $\tau $ is the impurity scattering time, and
$E_{F}$ is the Fermi energy. For a generic choice of parameters, $T^{\ast}$ is
smaller than the nominal crossover scale $1/\tau $. In the ballistic quantum
critical regime, the conductivity behaves as $T^{1/3}$.
|
[{'version': 'v1', 'created': 'Wed, 9 Feb 2005 20:03:30 GMT'}
{'version': 'v2', 'created': 'Tue, 1 Mar 2005 12:59:19 GMT'}
{'version': 'v3', 'created': 'Tue, 21 Mar 2006 16:30:17 GMT'}]
|
2009-11-11
|
[array(['Paul', 'I.', ''], dtype=object)
array(['Pépin', 'C.', ''], dtype=object)
array(['Narozhny', 'B. N.', ''], dtype=object)
array(['Maslov', 'D. L.', ''], dtype=object)]
|
18,290 |
hep-ph/0204261
|
D. M. Ghilencea
|
D.M. Ghilencea, H.P. Nilles
|
Stability of the Higgs mass in theories with extra dimensions
|
Contribution to the Proceedings of Durham IPPP meeting May 2001.(12
pages, LaTeX)
|
J.Phys.G28:2475-2486,2002
|
10.1088/0954-3899/28/9/310
| null |
hep-ph hep-th
| null |
We analyze the ultraviolet stability of the Higgs mass in recently proposed
Kaluza-Klein models compactified on S_1/Z_2 or S_1/(Z_2\times Z_2'), both at
the field theory and string theory level. Fayet-Iliopoulos terms of U(1)
hypercharge are shown to be of vital importance for this discussion. Models
with a single Higgs doublet seem to be generically affected by quadratic
divergences.
|
[{'version': 'v1', 'created': 'Mon, 22 Apr 2002 18:38:42 GMT'}
{'version': 'v2', 'created': 'Thu, 2 May 2002 19:40:22 GMT'}]
|
2008-11-26
|
[array(['Ghilencea', 'D. M.', ''], dtype=object)
array(['Nilles', 'H. P.', ''], dtype=object)]
|
18,291 |
2301.13376
|
Ian Colbert
|
Ian Colbert, Alessandro Pappalardo, Jakoba Petri-Koenig
|
Quantized Neural Networks for Low-Precision Accumulation with Guaranteed
Overflow Avoidance
| null | null | null | null |
cs.LG cs.AI cs.AR cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We introduce a quantization-aware training algorithm that guarantees avoiding
numerical overflow when reducing the precision of accumulators during
inference. We leverage weight normalization as a means of constraining
parameters during training using accumulator bit width bounds that we derive.
We evaluate our algorithm across multiple quantized models that we train for
different tasks, showing that our approach can reduce the precision of
accumulators while maintaining model accuracy with respect to a floating-point
baseline. We then show that this reduction translates to increased design
efficiency for custom FPGA-based accelerators. Finally, we show that our
algorithm not only constrains weights to fit into an accumulator of
user-defined bit width, but also increases the sparsity and compressibility of
the resulting weights. Across all of our benchmark models trained with 8-bit
weights and activations, we observe that constraining the hidden layers of
quantized neural networks to fit into 16-bit accumulators yields an average
98.2% sparsity with an estimated compression rate of 46.5x all while
maintaining 99.2% of the floating-point performance.
|
[{'version': 'v1', 'created': 'Tue, 31 Jan 2023 02:46:57 GMT'}]
|
2023-02-01
|
[array(['Colbert', 'Ian', ''], dtype=object)
array(['Pappalardo', 'Alessandro', ''], dtype=object)
array(['Petri-Koenig', 'Jakoba', ''], dtype=object)]
|
18,292 |
1904.02074
|
Qinbing Fu
|
Qinbing Fu, Nicola Bellotto, Huatian Wang, F. Claire Rind, Hongxin
Wang, Shigang Yue
|
A Visual Neural Network for Robust Collision Perception in Vehicle
Driving Scenarios
|
12 pages, 7 figures, conference, springer format
| null | null | null |
cs.CV cs.RO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This research addresses the challenging problem of visual collision detection
in very complex and dynamic real physical scenes, specifically, the vehicle
driving scenarios. This research takes inspiration from a large-field looming
sensitive neuron, i.e., the lobula giant movement detector (LGMD) in the
locust's visual pathways, which represents high spike frequency to rapid
approaching objects. Building upon our previous models, in this paper we
propose a novel inhibition mechanism that is capable of adapting to different
levels of background complexity. This adaptive mechanism works effectively to
mediate the local inhibition strength and tune the temporal latency of local
excitation reaching the LGMD neuron. As a result, the proposed model is
effective to extract colliding cues from complex dynamic visual scenes. We
tested the proposed method using a range of stimuli including simulated
movements in grating backgrounds and shifting of a natural panoramic scene, as
well as vehicle crash video sequences. The experimental results demonstrate the
proposed method is feasible for fast collision perception in real-world
situations with potential applications in future autonomous vehicles.
|
[{'version': 'v1', 'created': 'Wed, 3 Apr 2019 16:05:56 GMT'}]
|
2019-04-04
|
[array(['Fu', 'Qinbing', ''], dtype=object)
array(['Bellotto', 'Nicola', ''], dtype=object)
array(['Wang', 'Huatian', ''], dtype=object)
array(['Rind', 'F. Claire', ''], dtype=object)
array(['Wang', 'Hongxin', ''], dtype=object)
array(['Yue', 'Shigang', ''], dtype=object)]
|
18,293 |
1810.08538
|
Radom\'ir Hala\v{s}
|
Radom\'ir Hala\v{s}, Radko Mesiar, Jozef P\'ocs
|
A new characterization of the discrete Sugeno integral
|
11 pages
| null |
10.1016/j.inffus.2015.08.008
| null |
math.RA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We introduce a new property of the discrete Sugeno integrals which can be
seen as their characterization, too. This property, compatibility with respect
to congruences on $[0,1]$, stresses the importance of the Sugeno integrals in
multicriteria decision support as well.
|
[{'version': 'v1', 'created': 'Tue, 9 Oct 2018 07:50:36 GMT'}]
|
2018-10-22
|
[array(['Halaš', 'Radomír', ''], dtype=object)
array(['Mesiar', 'Radko', ''], dtype=object)
array(['Pócs', 'Jozef', ''], dtype=object)]
|
18,294 |
2203.00066
|
Joseph Paddison
|
Joseph A. M. Paddison, Binod K. Rai, Andrew F. May, Stuart A. Calder,
Matthew B. Stone, Matthias D. Frontzek, Andrew D. Christianson
|
Magnetic Interactions of the Centrosymmetric Skyrmion Material Gd2PdSi3
|
5 pages, 5 figures
| null |
10.1103/PhysRevLett.129.137202
| null |
cond-mat.str-el cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The experimental realization of magnetic skyrmions in centrosymmetric
materials has been driven by theoretical understanding of how a delicate
balance of anisotropy and frustration can stabilize topological spin structures
in applied magnetic fields. Recently, the centrosymmetric material
Gd$_{2}$PdSi$_{3}$ was shown to host a field-induced skyrmion phase, but the
skyrmion stabilization mechanism remains unclear. Here, we employ
neutron-scattering measurements on an isotopically-enriched polycrystalline
Gd$_{2}$PdSi$_{3}$ sample to quantify the interactions that drive skyrmion
formation. Our analysis reveals spatially-extended interactions in triangular
planes that are consistent with an RKKY mechanism, and large ferromagnetic
inter-planar magnetic interactions that are modulated by the Pd/Si
superstructure. The skyrmion phase emerges from a zero-field helical magnetic
order with magnetic moments perpendicular to the magnetic propagation vector,
indicating that the magnetic dipolar interaction plays a significant role. Our
experimental results establish an interaction space that can promote skyrmion
formation, facilitating identification and design of centrosymmetric skyrmion
materials.
|
[{'version': 'v1', 'created': 'Mon, 28 Feb 2022 20:11:40 GMT'}]
|
2022-10-05
|
[array(['Paddison', 'Joseph A. M.', ''], dtype=object)
array(['Rai', 'Binod K.', ''], dtype=object)
array(['May', 'Andrew F.', ''], dtype=object)
array(['Calder', 'Stuart A.', ''], dtype=object)
array(['Stone', 'Matthew B.', ''], dtype=object)
array(['Frontzek', 'Matthias D.', ''], dtype=object)
array(['Christianson', 'Andrew D.', ''], dtype=object)]
|
18,295 |
2109.06653
|
Andr\'es Mateo Gab\'in
|
Andr\'es Mateo-Gab\'in, Juan Manzanero, Eusebio Valero
|
An entropy stable spectral vanishing viscosity for discontinuous
Galerkin schemes: application to shock capturing and LES models
| null | null |
10.1016/j.jcp.2022.111618
| null |
math.NA cs.NA physics.flu-dyn
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
We present a stable spectral vanishing viscosity for discontinuous Galerkin
schemes, with applications to turbulent and supersonic flows. The idea behind
the SVV is to spatially filter the dissipative fluxes, such that it
concentrates in higher wavenumbers, where the flow is typically under-resolved,
leaving low wavenumbers dissipation-free. Moreover, we derive a stable
approximation of the Guermond-Popov fluxes with the Bassi-Rebay 1 scheme, used
to introduce density regularization in shock capturing simulations. This
filtering uses a Cholesky decomposition of the fluxes that ensures the entropy
stability of the scheme, which also includes a stable approximation of boundary
conditions for adiabatic walls. For turbulent flows, we test the method with
the three-dimensional Taylor-Green vortex and show that energy is correctly
dissipated, and the scheme is stable when a kinetic energy preserving
split-form is used in combination with a low dissipation Riemann solver.
Finally, we test the shock capturing capabilities of our method with the
Shu-Osher and the supersonic forward facing step cases, obtaining good results
without spurious oscillations even with coarse meshes.
|
[{'version': 'v1', 'created': 'Tue, 14 Sep 2021 12:54:03 GMT'}
{'version': 'v2', 'created': 'Mon, 20 Sep 2021 11:05:19 GMT'}
{'version': 'v3', 'created': 'Fri, 16 Sep 2022 15:33:36 GMT'}]
|
2022-09-19
|
[array(['Mateo-Gabín', 'Andrés', ''], dtype=object)
array(['Manzanero', 'Juan', ''], dtype=object)
array(['Valero', 'Eusebio', ''], dtype=object)]
|
18,296 |
1907.01784
|
Fattah Sakuldee
|
Fattah Sakuldee, {\L}ukasz Cywi\'nski
|
Spectroscopy of classical environmental noise with a qubit subjected to
projective measurements
|
12 pages, 6 figures
|
Phys. Rev. A 101, 012314 (2020)
|
10.1103/PhysRevA.101.012314
| null |
quant-ph cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show theoretically how a correlation of multiple measurements on a qubit
undergoing pure dephasing can be expressed as environmental noise filtering.
The measurement of such correlations can be used for environmental noise
spectroscopy, and the family of noise filters achievable in such a setting is
broader than the one achievable with a standard approach, in which dynamical
decoupling sequences are used. We illustrate the advantages of this approach by
considering the case of noise spectrum with sharp features at very low
frequencies. We also show how appropriately chosen correlations of a few
measurements can detect the non-Gaussian character of certain environmental
noises, particularly the noise affecting the qubit at the so-called optimal
working point.
|
[{'version': 'v1', 'created': 'Wed, 3 Jul 2019 08:02:38 GMT'}
{'version': 'v2', 'created': 'Tue, 16 Jul 2019 16:39:38 GMT'}
{'version': 'v3', 'created': 'Tue, 14 Jan 2020 10:53:03 GMT'}]
|
2020-01-22
|
[array(['Sakuldee', 'Fattah', ''], dtype=object)
array(['Cywiński', 'Łukasz', ''], dtype=object)]
|
18,297 |
quant-ph/0104092
|
Timothy C. Ralph
|
T. C. Ralph and W. J. Munro
|
Reply to Comment on ``Proposal for the Measurement of Bell-Type
Correlations from Continuous Variables''
| null | null | null | null |
quant-ph
| null |
Recently K. Banaszek, I. A. Walmsley, K. Wodkiewicz (quant-ph/0012097)
commented on our Proposal for the Measurement of Bell-Type Correlations from
Continuous Variables [T. C. Ralph, W. J. Munro, R. E. S. Polkinghorne, Phys.
Rev. Lett. 85, 2035 (2000)]. Their comment is based on a blatant misreading and
misunderstanding of our letter and as such is simply wrong.
|
[{'version': 'v1', 'created': 'Thu, 19 Apr 2001 01:44:21 GMT'}]
|
2007-05-23
|
[array(['Ralph', 'T. C.', ''], dtype=object)
array(['Munro', 'W. J.', ''], dtype=object)]
|
18,298 |
1512.07366
|
Seongbae Yang
|
Belle Collaboration: S. B. Yang, K. Tanida, B. H. Kim, I. Adachi, H.
Aihara, D. M. Asner, V. Aulchenko, V. Babu, I. Badhrees, A. M. Bakich, E.
Barberio, V. Bhardwaj, B. Bhuyan, J. Biswal, G. Bonvicini, A. Bozek, M.
Bra\v{c}ko, T. E. Browder, D. \v{C}ervenkov, V. Chekelian, A. Chen, B. G.
Cheon, K. Chilikin, R. Chistov, K. Cho, V. Chobanova, Y. Choi, D. Cinabro, J.
Dalseno, M. Danilov, N. Dash, Z. Dole\v{z}al, Z. Dr\'asal, D. Dutta, S.
Eidelman, H. Farhat, J. E. Fast, T. Ferber, B. G. Fulsom, V. Gaur, N.
Gabyshev, A. Garmash, R. Gillard, Y. M. Goh, P. Goldenzweig, D. Greenwald, J.
Grygier, J. Haba, P. Hamer, T. Hara, K. Hayasaka, H. Hayashii, W.-S. Hou, T.
Iijima, K. Inami, G. Inguglia, A. Ishikawa, R. Itoh, Y. Iwasaki, W. W.
Jacobs, I. Jaegle, H. B. Jeon, K. K. Joo, T. Julius, K. H. Kang, E. Kato, P.
Katrenko, C. Kiesling, D. Y. Kim, H. J. Kim, J. B. Kim, K. T. Kim, M. J. Kim,
S. H. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, N. Kobayashi, P. Kody\v{s}, S.
Korpar, P. Kri\v{z}an, P. Krokovny, T. Kuhr, A. Kuzmin, Y.-J. Kwon, J. S.
Lange, I. S. Lee, C. H. Li, H. Li, L. Li, Y. Li, L. Li Gioi, J. Libby, D.
Liventsev, M. Lubej, M. Masuda, D. Matvienko, K. Miyabayashi, H. Miyata, R.
Mizuk, G. B. Mohanty, A. Moll, H. K. Moon, R. Mussa, E. Nakano, M. Nakao, T.
Nanut, K. J. Nath, M. Nayak, K. Negishi, M. Niiyama, N. K. Nisar, S. Nishida,
S. Ogawa, S. Okuno, S. L. Olsen, G. Pakhlova, B. Pal, C. W. Park, H. Park, T.
K. Pedlar, R. Pestotnik, M. Petri\v{c}, L. E. Piilonen, C. Pulvermacher, J.
Rauch, M. Ritter, A. Rostomyan, O. Schneider, G. Schnell, C. Schwanda, A. J.
Schwartz, Y. Seino, S. Ryu, H. Sahoo, Y. Sakai, S. Sandilya, L. Santelj, T.
Sanuki, Y. Sato, V. Savinov, T. Schl\"uter, K. Senyo, O. Seon, I. S. Seong,
M. E. Sevior, V. Shebalin, T.-A. Shibata, J.-G. Shiu, B. Shwartz, F. Simon,
Y.-S. Sohn, A. Sokolov, S. Stani\v{c}, M. Stari\v{c}, J. Stypula, M.
Sumihama, T. Sumiyoshi, M. Takizawa, U. Tamponi, Y. Teramoto, K. Trabelsi, V.
Trusov, M. Uchida, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, P.
Vanhoefer, G. Varner, K. E. Varvell, A. Vinokurova, A. Vossen, M. N. Wagner,
C. H. Wang, M.-Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, K. M. Williams, E.
Won, J. Yamaoka, S. Yashchenko, H. Ye, J. Yelton, C. Z. Yuan, Y. Yusa, Z. P.
Zhang, V. Zhilich, V. Zhulanov, A. Zupanc
|
First Observation of Doubly Cabibbo-Suppressed Decay of a Charmed
Baryon: $\Lambda^{+}_{c} \rightarrow p K^{+} \pi^{-}$
|
6 pages, 3 figures
|
Phys. Rev. Lett. 117, 011801 (2016)
|
10.1103/PhysRevLett.117.011801
|
Belle 2015-22, KEK 2015-62
|
hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report the first observation of the decay $\Lambda^{+}_{c} \rightarrow p
K^{+} \pi^{-}$ using a 980 $\mathrm{fb^{-1}}$ data sample collected by the
Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. This is the
first doubly Cabibbo-suppressed decay of a charmed baryon to be observed. We
measure the branching ratio of this decay with respect to its Cabibbo-favored
counterpart to be $\mathcal{B}(\Lambda^{+}_{c} \rightarrow p K^{+}
\pi^{-})/\mathcal{B}(\Lambda^{+}_{c} \rightarrow p K^{-}
\pi^{+})=(2.35\pm0.27\pm0.21)\times10^{-3}$, where the uncertainties are
statistical and systematic, respectively.
|
[{'version': 'v1', 'created': 'Wed, 23 Dec 2015 06:46:10 GMT'}]
|
2016-08-06
|
[array(['Belle Collaboration', '', ''], dtype=object)
array(['Yang', 'S. B.', ''], dtype=object)
array(['Tanida', 'K.', ''], dtype=object)
array(['Kim', 'B. H.', ''], dtype=object)
array(['Adachi', 'I.', ''], dtype=object)
array(['Aihara', 'H.', ''], dtype=object)
array(['Asner', 'D. M.', ''], dtype=object)
array(['Aulchenko', 'V.', ''], dtype=object)
array(['Babu', 'V.', ''], dtype=object)
array(['Badhrees', 'I.', ''], dtype=object)
array(['Bakich', 'A. M.', ''], dtype=object)
array(['Barberio', 'E.', ''], dtype=object)
array(['Bhardwaj', 'V.', ''], dtype=object)
array(['Bhuyan', 'B.', ''], dtype=object)
array(['Biswal', 'J.', ''], dtype=object)
array(['Bonvicini', 'G.', ''], dtype=object)
array(['Bozek', 'A.', ''], dtype=object)
array(['Bračko', 'M.', ''], dtype=object)
array(['Browder', 'T. E.', ''], dtype=object)
array(['Červenkov', 'D.', ''], dtype=object)
array(['Chekelian', 'V.', ''], dtype=object)
array(['Chen', 'A.', ''], dtype=object)
array(['Cheon', 'B. G.', ''], dtype=object)
array(['Chilikin', 'K.', ''], dtype=object)
array(['Chistov', 'R.', ''], dtype=object)
array(['Cho', 'K.', ''], dtype=object)
array(['Chobanova', 'V.', ''], dtype=object)
array(['Choi', 'Y.', ''], dtype=object)
array(['Cinabro', 'D.', ''], dtype=object)
array(['Dalseno', 'J.', ''], dtype=object)
array(['Danilov', 'M.', ''], dtype=object)
array(['Dash', 'N.', ''], dtype=object)
array(['Doležal', 'Z.', ''], dtype=object)
array(['Drásal', 'Z.', ''], dtype=object)
array(['Dutta', 'D.', ''], dtype=object)
array(['Eidelman', 'S.', ''], dtype=object)
array(['Farhat', 'H.', ''], dtype=object)
array(['Fast', 'J. E.', ''], dtype=object)
array(['Ferber', 'T.', ''], dtype=object)
array(['Fulsom', 'B. G.', ''], dtype=object)
array(['Gaur', 'V.', ''], dtype=object)
array(['Gabyshev', 'N.', ''], dtype=object)
array(['Garmash', 'A.', ''], dtype=object)
array(['Gillard', 'R.', ''], dtype=object)
array(['Goh', 'Y. M.', ''], dtype=object)
array(['Goldenzweig', 'P.', ''], dtype=object)
array(['Greenwald', 'D.', ''], dtype=object)
array(['Grygier', 'J.', ''], dtype=object)
array(['Haba', 'J.', ''], dtype=object)
array(['Hamer', 'P.', ''], dtype=object)
array(['Hara', 'T.', ''], dtype=object)
array(['Hayasaka', 'K.', ''], dtype=object)
array(['Hayashii', 'H.', ''], dtype=object)
array(['Hou', 'W. -S.', ''], dtype=object)
array(['Iijima', 'T.', ''], dtype=object)
array(['Inami', 'K.', ''], dtype=object)
array(['Inguglia', 'G.', ''], dtype=object)
array(['Ishikawa', 'A.', ''], dtype=object)
array(['Itoh', 'R.', ''], dtype=object)
array(['Iwasaki', 'Y.', ''], dtype=object)
array(['Jacobs', 'W. W.', ''], dtype=object)
array(['Jaegle', 'I.', ''], dtype=object)
array(['Jeon', 'H. B.', ''], dtype=object)
array(['Joo', 'K. K.', ''], dtype=object)
array(['Julius', 'T.', ''], dtype=object)
array(['Kang', 'K. H.', ''], dtype=object)
array(['Kato', 'E.', ''], dtype=object)
array(['Katrenko', 'P.', ''], dtype=object)
array(['Kiesling', 'C.', ''], dtype=object)
array(['Kim', 'D. Y.', ''], dtype=object)
array(['Kim', 'H. J.', ''], dtype=object)
array(['Kim', 'J. B.', ''], dtype=object)
array(['Kim', 'K. T.', ''], dtype=object)
array(['Kim', 'M. J.', ''], dtype=object)
array(['Kim', 'S. H.', ''], dtype=object)
array(['Kim', 'S. K.', ''], dtype=object)
array(['Kim', 'Y. J.', ''], dtype=object)
array(['Kinoshita', 'K.', ''], dtype=object)
array(['Kobayashi', 'N.', ''], dtype=object)
array(['Kodyš', 'P.', ''], dtype=object)
array(['Korpar', 'S.', ''], dtype=object)
array(['Križan', 'P.', ''], dtype=object)
array(['Krokovny', 'P.', ''], dtype=object)
array(['Kuhr', 'T.', ''], dtype=object)
array(['Kuzmin', 'A.', ''], dtype=object)
array(['Kwon', 'Y. -J.', ''], dtype=object)
array(['Lange', 'J. S.', ''], dtype=object)
array(['Lee', 'I. S.', ''], dtype=object)
array(['Li', 'C. H.', ''], dtype=object)
array(['Li', 'H.', ''], dtype=object)
array(['Li', 'L.', ''], dtype=object)
array(['Li', 'Y.', ''], dtype=object)
array(['Gioi', 'L. Li', ''], dtype=object)
array(['Libby', 'J.', ''], dtype=object)
array(['Liventsev', 'D.', ''], dtype=object)
array(['Lubej', 'M.', ''], dtype=object)
array(['Masuda', 'M.', ''], dtype=object)
array(['Matvienko', 'D.', ''], dtype=object)
array(['Miyabayashi', 'K.', ''], dtype=object)
array(['Miyata', 'H.', ''], dtype=object)
array(['Mizuk', 'R.', ''], dtype=object)
array(['Mohanty', 'G. B.', ''], dtype=object)
array(['Moll', 'A.', ''], dtype=object)
array(['Moon', 'H. K.', ''], dtype=object)
array(['Mussa', 'R.', ''], dtype=object)
array(['Nakano', 'E.', ''], dtype=object)
array(['Nakao', 'M.', ''], dtype=object)
array(['Nanut', 'T.', ''], dtype=object)
array(['Nath', 'K. J.', ''], dtype=object)
array(['Nayak', 'M.', ''], dtype=object)
array(['Negishi', 'K.', ''], dtype=object)
array(['Niiyama', 'M.', ''], dtype=object)
array(['Nisar', 'N. K.', ''], dtype=object)
array(['Nishida', 'S.', ''], dtype=object)
array(['Ogawa', 'S.', ''], dtype=object)
array(['Okuno', 'S.', ''], dtype=object)
array(['Olsen', 'S. L.', ''], dtype=object)
array(['Pakhlova', 'G.', ''], dtype=object)
array(['Pal', 'B.', ''], dtype=object)
array(['Park', 'C. W.', ''], dtype=object)
array(['Park', 'H.', ''], dtype=object)
array(['Pedlar', 'T. K.', ''], dtype=object)
array(['Pestotnik', 'R.', ''], dtype=object)
array(['Petrič', 'M.', ''], dtype=object)
array(['Piilonen', 'L. E.', ''], dtype=object)
array(['Pulvermacher', 'C.', ''], dtype=object)
array(['Rauch', 'J.', ''], dtype=object)
array(['Ritter', 'M.', ''], dtype=object)
array(['Rostomyan', 'A.', ''], dtype=object)
array(['Schneider', 'O.', ''], dtype=object)
array(['Schnell', 'G.', ''], dtype=object)
array(['Schwanda', 'C.', ''], dtype=object)
array(['Schwartz', 'A. J.', ''], dtype=object)
array(['Seino', 'Y.', ''], dtype=object)
array(['Ryu', 'S.', ''], dtype=object)
array(['Sahoo', 'H.', ''], dtype=object)
array(['Sakai', 'Y.', ''], dtype=object)
array(['Sandilya', 'S.', ''], dtype=object)
array(['Santelj', 'L.', ''], dtype=object)
array(['Sanuki', 'T.', ''], dtype=object)
array(['Sato', 'Y.', ''], dtype=object)
array(['Savinov', 'V.', ''], dtype=object)
array(['Schlüter', 'T.', ''], dtype=object)
array(['Senyo', 'K.', ''], dtype=object)
array(['Seon', 'O.', ''], dtype=object)
array(['Seong', 'I. S.', ''], dtype=object)
array(['Sevior', 'M. E.', ''], dtype=object)
array(['Shebalin', 'V.', ''], dtype=object)
array(['Shibata', 'T. -A.', ''], dtype=object)
array(['Shiu', 'J. -G.', ''], dtype=object)
array(['Shwartz', 'B.', ''], dtype=object)
array(['Simon', 'F.', ''], dtype=object)
array(['Sohn', 'Y. -S.', ''], dtype=object)
array(['Sokolov', 'A.', ''], dtype=object)
array(['Stanič', 'S.', ''], dtype=object)
array(['Starič', 'M.', ''], dtype=object)
array(['Stypula', 'J.', ''], dtype=object)
array(['Sumihama', 'M.', ''], dtype=object)
array(['Sumiyoshi', 'T.', ''], dtype=object)
array(['Takizawa', 'M.', ''], dtype=object)
array(['Tamponi', 'U.', ''], dtype=object)
array(['Teramoto', 'Y.', ''], dtype=object)
array(['Trabelsi', 'K.', ''], dtype=object)
array(['Trusov', 'V.', ''], dtype=object)
array(['Uchida', 'M.', ''], dtype=object)
array(['Uglov', 'T.', ''], dtype=object)
array(['Unno', 'Y.', ''], dtype=object)
array(['Uno', 'S.', ''], dtype=object)
array(['Urquijo', 'P.', ''], dtype=object)
array(['Usov', 'Y.', ''], dtype=object)
array(['Vanhoefer', 'P.', ''], dtype=object)
array(['Varner', 'G.', ''], dtype=object)
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array(['Vinokurova', 'A.', ''], dtype=object)
array(['Vossen', 'A.', ''], dtype=object)
array(['Wagner', 'M. N.', ''], dtype=object)
array(['Wang', 'C. H.', ''], dtype=object)
array(['Wang', 'M. -Z.', ''], dtype=object)
array(['Wang', 'P.', ''], dtype=object)
array(['Wang', 'X. L.', ''], dtype=object)
array(['Watanabe', 'Y.', ''], dtype=object)
array(['Williams', 'K. M.', ''], dtype=object)
array(['Won', 'E.', ''], dtype=object)
array(['Yamaoka', 'J.', ''], dtype=object)
array(['Yashchenko', 'S.', ''], dtype=object)
array(['Ye', 'H.', ''], dtype=object)
array(['Yelton', 'J.', ''], dtype=object)
array(['Yuan', 'C. Z.', ''], dtype=object)
array(['Yusa', 'Y.', ''], dtype=object)
array(['Zhang', 'Z. P.', ''], dtype=object)
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array(['Zhulanov', 'V.', ''], dtype=object)
array(['Zupanc', 'A.', ''], dtype=object)]
|
18,299 |
0710.4586
|
Svetlana Roudenko
|
Alex Iosevich and Svetlana Roudenko
|
A universal Stein-Tomas restriction estimate for measures in three
dimensions
| null | null | null | null |
math.CA
| null |
We study restriction estimates in R^3 for surfaces given as graphs of
W^1_1(R^2) (integrable gradient) functions. We obtain a "universal" L^2(mu) ->
L^4(R^3, L^2(SO(3))) estimate for the extension operator f -> \hat{f mu} in
three dimensions. We also prove that the three dimensional estimate holds for
any Frostman measure supported on a compact set of Hausdorff dimension greater
than two. The approach is geometric and is influenced by a connection with the
Falconer distance problem.
|
[{'version': 'v1', 'created': 'Wed, 24 Oct 2007 22:49:59 GMT'}]
|
2007-10-26
|
[array(['Iosevich', 'Alex', ''], dtype=object)
array(['Roudenko', 'Svetlana', ''], dtype=object)]
|
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