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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1,200 |
astro-ph/0609439
|
Silvia Galleti
|
S. Galleti, L. Federici, M. Bellazzini, A. Buzzoni and F. Fusi Pecci
|
ACS photometry of the globular cluster B514
|
4 pages, 3 figures. Accepted for publication in ApJ Letters
|
Astrophys.J.650:L107-L110,2006
|
10.1086/508884
| null |
astro-ph
| null |
We present deep F606W, F814W ACS photometry of the recently discovered
globular cluster B514, the outermost known globular in the M31 galaxy. The
cluster appears quite extended and member stars are unequivocally identified
out to ~200 pc from the center. The Color Magnitude Diagram reveals a steep Red
Giant Branch (RGB), and a Horizontal Branch (HB) extending blue ward of the
instability strip, indicating that B514 is a classical old metal-poor globular
cluster. The RGB locus and the position of the RGB Bump are both consistent
with a metallicity [Fe/H] ~ -1.8, in excellent agreement with spectroscopic
estimates. A preliminary estimate of the integrated absolute V magnitude (M_V<
-9.1) suggests that B514 is among the brightest globulars of M31.
|
[{'version': 'v1', 'created': 'Fri, 15 Sep 2006 14:06:56 GMT'}]
|
2011-02-11
|
[array(['Galleti', 'S.', ''], dtype=object)
array(['Federici', 'L.', ''], dtype=object)
array(['Bellazzini', 'M.', ''], dtype=object)
array(['Buzzoni', 'A.', ''], dtype=object)
array(['Pecci', 'F. Fusi', ''], dtype=object)]
|
1,201 |
1610.06067
|
Aws Albarghouthi
|
Aws Albarghouthi and Loris D'Antoni and Samuel Drews and Aditya Nori
|
Fairness as a Program Property
| null | null | null | null |
cs.PL cs.AI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We explore the following question: Is a decision-making program fair, for
some useful definition of fairness? First, we describe how several algorithmic
fairness questions can be phrased as program verification problems. Second, we
discuss an automated verification technique for proving or disproving fairness
of decision-making programs with respect to a probabilistic model of the
population.
|
[{'version': 'v1', 'created': 'Wed, 19 Oct 2016 15:31:34 GMT'}]
|
2016-10-20
|
[array(['Albarghouthi', 'Aws', ''], dtype=object)
array(["D'Antoni", 'Loris', ''], dtype=object)
array(['Drews', 'Samuel', ''], dtype=object)
array(['Nori', 'Aditya', ''], dtype=object)]
|
1,202 |
0906.1113
|
Xu Lixin
|
Lixin Xu
|
Time Variable Cosmological Constant from Renormalization Group Equations
|
9 pages, 4 figures. the case \mu^2=-\dot{H} and data from CMB shift
parameter R are added
|
Mod.Phys.Lett.A25:377-388,2010
|
10.1142/S0217732310031762
|
TP-DUT/2009-06
|
astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, a time variable cosmological constant (CC) from
renormalization group equations (RGEs) is explored, where the renormalization
scale $\mu^2=R^{-2}_{CC}=Max(\dot{H}+2H^2,-\dot{H})$ is taken. The cosmological
parameters, such as dimensionless energy density, deceleration parameter and
effective equation of state of CC etc, are derived. Also, the cosmic
observational constraints are implemented to test the model's consistence. The
results show that it is compatible with cosmic data. So, it would be a viable
dark energy model.
|
[{'version': 'v1', 'created': 'Fri, 5 Jun 2009 12:47:20 GMT'}
{'version': 'v2', 'created': 'Sun, 7 Jun 2009 03:23:44 GMT'}
{'version': 'v3', 'created': 'Mon, 13 Jul 2009 02:38:59 GMT'}]
|
2010-03-17
|
[array(['Xu', 'Lixin', ''], dtype=object)]
|
1,203 |
2212.02439
|
Laurence Pelletier
|
Jason Lequyer, Wen-Hsin Hsu, Reuben Philip, Anna Christina Erpf,
Laurence Pelletier
|
Domino Denoise: An Accurate Blind Zero-Shot Denoiser using Domino
Tilings
| null | null | null | null |
cs.CV eess.IV
|
http://creativecommons.org/licenses/by/4.0/
|
Because noise can interfere with downstream analysis, image denoising has
come to occupy an important place in the image processing toolbox. The most
accurate state-of-the-art denoisers typically train on a representative
dataset. But gathering a training set is not always feasible, so interest has
grown in blind zero-shot denoisers that train only on the image they are
denoising. The most accurate blind-zero shot methods are blind-spot networks,
which mask pixels and attempt to infer them from their surroundings. Other
methods exist where all neurons participate in forward inference, however they
are not as accurate and are susceptible to overfitting. Here we present a
hybrid approach. We first introduce a semi blind-spot network where the network
can see only a small percentage of inputs during gradient update. We then
resolve overfitting by introducing a validation scheme where we split pixels
into two groups and fill in pixel gaps using domino tilings. Our method
achieves an average PSNR increase of $0.28$ and a three fold increase in speed
over the current gold standard blind zero-shot denoiser Self2Self on synthetic
Gaussian noise. We demonstrate the broader applicability of Pixel Domino Tiling
by inserting it into a preciously published method.
|
[{'version': 'v1', 'created': 'Mon, 5 Dec 2022 17:34:47 GMT'}]
|
2022-12-06
|
[array(['Lequyer', 'Jason', ''], dtype=object)
array(['Hsu', 'Wen-Hsin', ''], dtype=object)
array(['Philip', 'Reuben', ''], dtype=object)
array(['Erpf', 'Anna Christina', ''], dtype=object)
array(['Pelletier', 'Laurence', ''], dtype=object)]
|
1,204 |
1201.4193
|
Andr\'es Su\'arez-Madrigal
|
Andr\'es Su\'arez-Madrigal, Javier Ballesteros-Paredes, Pedro Col\'in,
Paola D'Alessio
|
Dark Matter as an active gravitational agent in cloud complexes
|
Same as previous version, but accepted by the Astrophysical Journal;
12 pages, 12 figures
| null |
10.1088/0004-637X/748/2/101
| null |
astro-ph.SR astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the effect that the dark matter background (DMB) has on the
gravitational energy content and, in general, on the star formation efficiency
of a molecular cloud (MC). We first analyze the effect that a dark matter halo,
described by the Navarro et al. (1996) density profile, has on the energy
budget of a spherical, homogeneous, cloud located at different distances from
the halo center. We found that MCs located in the innermost regions of a
massive galaxy can feel a contraction force greater than their self-gravity due
to the incorporation of the potential of the galaxy's dark matter halo. We also
calculated analytically the gravitational perturbation that a MC produces over
a uniform DMB (uniform at the scales of a MC) and how this perturbation will
affect the evolution of the MC itself. The study shows that the star formation
in a MC will be considerably enhanced if the cloud is located in a dense and
low velocity dark matter environment. We confirm our results by measuring the
star formation efficiency in numerical simulations of the formation and
evolution of MCs within different DMBs. Our study indicates that there are
situations where the dark matter's gravitational contribution to the evolution
of the molecular clouds should not be neglected.
|
[{'version': 'v1', 'created': 'Fri, 20 Jan 2012 00:07:49 GMT'}
{'version': 'v2', 'created': 'Fri, 27 Jan 2012 23:58:44 GMT'}]
|
2015-06-03
|
[array(['Suárez-Madrigal', 'Andrés', ''], dtype=object)
array(['Ballesteros-Paredes', 'Javier', ''], dtype=object)
array(['Colín', 'Pedro', ''], dtype=object)
array(["D'Alessio", 'Paola', ''], dtype=object)]
|
1,205 |
2111.00415
|
Zhichun Joy Zhang
|
Kelly Guest, Andrew Johnson, Peter Johnson, William Jones, Yuki
Takahashi, Zhichun Joy Zhang
|
Graphs with prescribed radius, diameter, and center
| null |
Graphs with prescribed radius, diameter, and center, International
Journal of Mathematics and Computer Science, 16(2021), No. 4
| null | null |
math.CO
|
http://creativecommons.org/licenses/by/4.0/
|
Among other things, it is shown that for every pair of positive integers $r$,
$d$, satisfying $1<r<d\leq 2r$, and every finite simple graph $H,$ there is a
connected graph $G$ with diameter $d$, radius $r$, and center $H.$
|
[{'version': 'v1', 'created': 'Sun, 31 Oct 2021 06:22:48 GMT'}]
|
2021-11-02
|
[array(['Guest', 'Kelly', ''], dtype=object)
array(['Johnson', 'Andrew', ''], dtype=object)
array(['Johnson', 'Peter', ''], dtype=object)
array(['Jones', 'William', ''], dtype=object)
array(['Takahashi', 'Yuki', ''], dtype=object)
array(['Zhang', 'Zhichun Joy', ''], dtype=object)]
|
1,206 |
1911.08142
|
Xiang Gao
|
Xiang Gao, Wei Hu, Guo-Jun Qi
|
GraphTER: Unsupervised Learning of Graph Transformation Equivariant
Representations via Auto-Encoding Node-wise Transformations
| null | null | null | null |
cs.CV cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Recent advances in Graph Convolutional Neural Networks (GCNNs) have shown
their efficiency for non-Euclidean data on graphs, which often require a large
amount of labeled data with high cost. It it thus critical to learn graph
feature representations in an unsupervised manner in practice. To this end, we
propose a novel unsupervised learning of Graph Transformation Equivariant
Representations (GraphTER), aiming to capture intrinsic patterns of graph
structure under both global and local transformations. Specifically, we allow
to sample different groups of nodes from a graph and then transform them
node-wise isotropically or anisotropically. Then, we self-train a
representation encoder to capture the graph structures by reconstructing these
node-wise transformations from the feature representations of the original and
transformed graphs. In experiments, we apply the learned GraphTER to graphs of
3D point cloud data, and results on point cloud segmentation/classification
show that GraphTER significantly outperforms state-of-the-art unsupervised
approaches and pushes greatly closer towards the upper bound set by the fully
supervised counterparts. The code is available at:
https://github.com/gyshgx868/graph-ter.
|
[{'version': 'v1', 'created': 'Tue, 19 Nov 2019 08:03:12 GMT'}
{'version': 'v2', 'created': 'Thu, 19 Mar 2020 02:50:11 GMT'}]
|
2020-03-20
|
[array(['Gao', 'Xiang', ''], dtype=object)
array(['Hu', 'Wei', ''], dtype=object)
array(['Qi', 'Guo-Jun', ''], dtype=object)]
|
1,207 |
2210.10574
|
Xian Xu
|
Xian Xu
|
On Bisimulation in Absence of Restriction
|
19 pages
| null | null | null |
cs.LO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We revisit the standard bisimulation equalities in process models free of the
restriction operator. As is well-known, in general the weak bisimilarity is
coarser than the strong bisimilarity because it abstracts from internal
actions. In absence of restriction, those internal actions become somewhat
visible, so one might wonder if the weak bisimilarity is still 'weak'. We show
that in both CCScore (i.e., Milner's standard CCS without $\tau$-prefix,
summation and relabelling) and its higher-order variant (named HOCCScore), the
weak bisimilarity indeed remains weak, i.e., still strictly coarser than the
strong bisimilarity, even without the restriction operator. These results can
be extended to other first-order or higher-order process models. Essentially,
this is due to the direct or indirect existence of the replication operation,
which can keep a process retaining its state (i.e., capacity of interaction).
By virtue of these observations, we examine a variant of the weak bisimilarity,
called quasi-strong bisimilarity. This quasi-strong bisimilarity requires the
matching of internal actions to be conducted in the strong manner, as for the
strong bisimilarity, and the matching of visible actions to have no trailing
internal actions. We exhibit that in CCScore without the restriction operator,
the weak bisimilarity exactly collapses onto this quasi-strong bisimilarity,
which is moreover shown to coincide with the branching bisimilarity. These
results reveal that in absence of the restriction operation, some ingredient of
the weak bisimilarity indeed turns into strong, particularly the matching of
internal actions.
|
[{'version': 'v1', 'created': 'Wed, 19 Oct 2022 14:15:32 GMT'}]
|
2022-10-20
|
[array(['Xu', 'Xian', ''], dtype=object)]
|
1,208 |
0909.1366
|
Masaru Ikehata
|
Masaru Ikehata
|
Mittag-Leffler's function, Vekua transform and an inverse obstacle
scattering problem
|
20pages
|
Inverse Problems 26 (2010) 045004
|
10.1088/0266-5611/26/4/045004
| null |
math.AP math.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This paper studies a prototype of inverse obstacle scattering problems whose
governing equation is the Helmholtz equation in two dimensions. An explicit
method to extract information about the location and shape of unknown obstacles
from the far field operator with a fixed wave number is given. The method is
based on: an explicit construction of a modification of Mittag-Leffler's
function via the Vekua transform and the study of the asymptotic behaviour; an
explicit density in the Herglotz wave function that approximates the
modification of Mittag-Leffler's function in the bounded domain surrounding
unknown obstacles; a system of inequalities derived from Kirsch's factorization
formula of the far field operator. Then an indicator function which can be
calculated from the far field operator acting on the density is introduced. It
is shown that the asymptotic behaviour of the indicator function yields
information about the visible part of the exterior of the obstacles.
|
[{'version': 'v1', 'created': 'Tue, 8 Sep 2009 01:08:59 GMT'}
{'version': 'v2', 'created': 'Tue, 15 Sep 2009 05:09:27 GMT'}]
|
2011-09-21
|
[array(['Ikehata', 'Masaru', ''], dtype=object)]
|
1,209 |
cs/0608090
|
Gun Srijuntongsiri
|
Gun Srijuntongsiri and Stephen A. Vavasis
|
A Condition Number Analysis of a Line-Surface Intersection Algorithm
| null | null | null | null |
cs.NA cs.CG
| null |
We propose an algorithm based on Newton's method and subdivision for finding
all zeros of a polynomial system in a bounded region of the plane. This
algorithm can be used to find the intersections between a line and a surface,
which has applications in graphics and computer-aided geometric design. The
algorithm can operate on polynomials represented in any basis that satisfies a
few conditions. The power basis, the Bernstein basis, and the first-kind
Chebyshev basis are among those compatible with the algorithm. The main novelty
of our algorithm is an analysis showing that its running is bounded only in
terms of the condition number of the polynomial's zeros and a constant
depending on the polynomial basis.
|
[{'version': 'v1', 'created': 'Wed, 23 Aug 2006 03:47:07 GMT'}
{'version': 'v2', 'created': 'Mon, 22 Oct 2007 03:16:05 GMT'}]
|
2007-10-22
|
[array(['Srijuntongsiri', 'Gun', ''], dtype=object)
array(['Vavasis', 'Stephen A.', ''], dtype=object)]
|
1,210 |
2101.01581
|
Duarte Sousa
|
S. Liu, D. J. P. de Sousa, M. Sammon, J. P. Wang, Tony Low
|
Efficient domain wall motion in asymmetric magnetic tunnel junctions
with vertical current flow
|
6 pages, 4 figures
| null |
10.1016/j.jmmm.2021.168949
| null |
cond-mat.mes-hall
|
http://creativecommons.org/licenses/by/4.0/
|
In this paper, we study the domain wall motion induced by vertical current
flow in asymmetric magnetic tunnel junctions. The domain wall motion in the
free layer is mainly dictated by the current-induced field-like torque acting
on it. We show that as we increase the MTJ asymmetry, by considering dissimilar
ferromagnetic contacts, a linear-in-voltage field-like torque behavior is
accompanied by an enhancement in the domain wall displacement efficiency and a
higher degree of bidirectional propagation. Our analysis is based on a
combination of a quantum transport model and magnetization dynamics as
described by the Landau-Lifshitz-Gilbert equation, along with comparison to the
intrinsic characteristics of a benchmark in-plane current injection domain wall
device.
|
[{'version': 'v1', 'created': 'Tue, 5 Jan 2021 15:19:07 GMT'}]
|
2022-02-09
|
[array(['Liu', 'S.', ''], dtype=object)
array(['de Sousa', 'D. J. P.', ''], dtype=object)
array(['Sammon', 'M.', ''], dtype=object)
array(['Wang', 'J. P.', ''], dtype=object)
array(['Low', 'Tony', ''], dtype=object)]
|
1,211 |
1602.04757
|
Pasquale Cilibrizzi
|
Pasquale Cilibrizzi, Helgi Sigurdsson, Tim C.H. Liew, Hamid Ohadi,
Simon Wilkinson, Alexis Askitopoulos, Ivan A. Shelykh, and Pavlos Lagoudakis
|
Polariton Spin Whirls
|
12 pages, 11 figures
|
Phys. Rev. B 92, 155308 (2015)
|
10.1103/PhysRevB.92.155308
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report on the observation of spin whirls in a radially expanding polariton
condensate formed under non-resonant optical excitation. Real space imaging of
polarization- and time-resolved photoluminescence reveal a spiralling
polarization pattern in the plane of the microcavity. Simulations of the
spatiotemporal dynamics of a spinor condensate reveal the crucial role of
polariton interactions with a spinor exciton reservoir. Harnessing spin
dependent interactions between the exciton reservoir and polariton condensates
allows for the manipulation of spin currents and the realization of dynamic
collective spin effects in solid state systems.
|
[{'version': 'v1', 'created': 'Mon, 15 Feb 2016 18:31:39 GMT'}]
|
2016-02-16
|
[array(['Cilibrizzi', 'Pasquale', ''], dtype=object)
array(['Sigurdsson', 'Helgi', ''], dtype=object)
array(['Liew', 'Tim C. H.', ''], dtype=object)
array(['Ohadi', 'Hamid', ''], dtype=object)
array(['Wilkinson', 'Simon', ''], dtype=object)
array(['Askitopoulos', 'Alexis', ''], dtype=object)
array(['Shelykh', 'Ivan A.', ''], dtype=object)
array(['Lagoudakis', 'Pavlos', ''], dtype=object)]
|
1,212 |
nucl-th/0107001
|
Scott Pratt
|
Sen Cheng, Scott Pratt, Peter Csizmadia, Yasushi Nara, Denes Molnar,
Miklos Gyulassy, Stephen Vance and Bin Zhang
|
The effect of finite-range interactions in classical transport theory
| null |
Phys.Rev.C65:024901,2002
|
10.1103/PhysRevC.65.024901
| null |
nucl-th
| null |
The effect of scattering with non-zero impact parameters between consituents
in relativistic heavy ion collisions is investigated. In solving the
relativistic Boltzmann equation, the characteristic range of the collision
kernel is varied from approximately one fm to zero while leaving the mean-free
path unchanged. Modifying this range is shown to significantly affect spectra
and flow observables. The finite range is shown to provide effective
viscosities, shear, bulk viscosity and heat conductivity, with the viscous
coefficients being proportional to the square of the interaction range.
|
[{'version': 'v1', 'created': 'Sat, 30 Jun 2001 11:52:36 GMT'}]
|
2009-10-09
|
[array(['Cheng', 'Sen', ''], dtype=object)
array(['Pratt', 'Scott', ''], dtype=object)
array(['Csizmadia', 'Peter', ''], dtype=object)
array(['Nara', 'Yasushi', ''], dtype=object)
array(['Molnar', 'Denes', ''], dtype=object)
array(['Gyulassy', 'Miklos', ''], dtype=object)
array(['Vance', 'Stephen', ''], dtype=object)
array(['Zhang', 'Bin', ''], dtype=object)]
|
1,213 |
1810.12079
|
Philipp Schlicht
|
Fabiana Castiblanco, Philipp Schlicht
|
Preserving levels of projective determinacy by tree forcings
|
3 figures
| null | null | null |
math.LO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We prove that various classical tree forcings -- for instance Sacks forcing,
Mathias forcing, Laver forcing, Miller forcing and Silver forcing -- preserve
the statement that every real has a sharp and hence analytic determinacy. We
then lift this result via methods of inner model theory to obtain
level-by-level preservation of projective determinacy (PD). Assuming PD, we
further prove that projective generic absoluteness holds and no new equivalence
classes classes are added to thin projective transitive relations by these
forcings.
|
[{'version': 'v1', 'created': 'Mon, 29 Oct 2018 13:02:23 GMT'}
{'version': 'v2', 'created': 'Sun, 24 Feb 2019 21:41:52 GMT'}
{'version': 'v3', 'created': 'Wed, 5 Feb 2020 22:30:16 GMT'}
{'version': 'v4', 'created': 'Sat, 17 Oct 2020 13:55:08 GMT'}
{'version': 'v5', 'created': 'Thu, 18 Mar 2021 14:13:31 GMT'}]
|
2021-03-19
|
[array(['Castiblanco', 'Fabiana', ''], dtype=object)
array(['Schlicht', 'Philipp', ''], dtype=object)]
|
1,214 |
1111.4851
|
Li Linrui
|
Shu Wang and Li Linrui and Shengtao Chen
|
On one multidimensional compressible nonlocal model of the dissipative
QG equations
|
24 pages
| null | null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we study the Cauchy problem for one multidimensional
compressible nonlocal model of the dissipative quasi-geostrophic equations.
First, we obtain the local existence and uniqueness of the smooth non-negative
solution or the strong solution in time. Secondly, for the sub-critical and
critical case $1\le\alpha\leq 2$, we obtain the global existence and uniqueness
results of the nonnegative smooth solution. Then, we prove the global existence
of the weak solution for $0\le \alpha\le 2$ and $\nu\ge 0$. Finally, for the
sub-critical case, we establish the global $H^1$ and $L^p, p>2,$ decay rate of
the smooth solution as $t\to\infty$.
|
[{'version': 'v1', 'created': 'Mon, 21 Nov 2011 12:41:01 GMT'}
{'version': 'v2', 'created': 'Mon, 6 Feb 2012 01:11:13 GMT'}]
|
2012-02-07
|
[array(['Wang', 'Shu', ''], dtype=object)
array(['Linrui', 'Li', ''], dtype=object)
array(['Chen', 'Shengtao', ''], dtype=object)]
|
1,215 |
2206.11151
|
Yazhou Zhang
|
Jintao Deng, Liang Guo, Qin Wang, Yazhou Zhang
|
Coarse embeddings at infinity and generalized expanders at infinity
|
20 pages
| null | null | null |
math.OA math.GR math.MG
|
http://creativecommons.org/licenses/by/4.0/
|
We introduce a notion of coarse embedding at infinity into Hilbert space for
metric spaces, which is a weakening of the notion of fibred coarse embedding
and a far generalization of Gromov's concept of coarse embedding. It turns out
that a residually finite group admits a coarse embedding into Hilbert space if
and only if one (or equivalently, every) box space of the group admits a coarse
embedding at infinity into Hilbert space. Moreover, we introduce a concept of
generalized expander at infinity and show that it is an obstruction to coarse
embeddability at infinity.
|
[{'version': 'v1', 'created': 'Wed, 22 Jun 2022 14:57:15 GMT'}
{'version': 'v2', 'created': 'Fri, 15 Jul 2022 09:26:00 GMT'}]
|
2022-07-18
|
[array(['Deng', 'Jintao', ''], dtype=object)
array(['Guo', 'Liang', ''], dtype=object)
array(['Wang', 'Qin', ''], dtype=object)
array(['Zhang', 'Yazhou', ''], dtype=object)]
|
1,216 |
1912.08760
|
Timothy Banks
|
Timothy Banks, Talar Yontan, Selcuk Bilir, Remziye Canbay
|
Vilnius Photometry and Gaia Astrometry of Melotte 105
|
Accepted for publication in Journal of Astronomy and Astrophysics
| null |
10.1007/s12036-020-9621-2
| null |
astro-ph.SR astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Archival Vilnius CCD photometric observations are presented for the heavily
reddened star cluster Melotte 105, resulting in colour-magnitude diagrams and
spectral class estimates. There is considerable lack of agreement between
studies for reddening, age, and distance for this cluster explaining why the
archival data are being made available by this paper. The derived reddening
E(B-V =0.34 +/- 0.04 mag and the distance V-M =12.9 +/- 0.3 mag directly from
the Vilnius photometry. The Gaia Data Release 2 (DR2) and Vilnius photometric
data of the cluster were used to estimate the structural parameters of the
cluster, probability of stellar membership in the cluster, the distance modulus
and the cluster age. Lack of $Y$ band observations prevented determination of
metal abundance. The values of the colour excess and distance module are
determined by two different methods (i.e., Q and Zero Age Main Sequence, or
ZAMS, methods). A distance modulus of 12.85 +/- 0.07 mag was derived by ZAMS
fitting, in good agreement with the above estimate. ZAMS fitting indicates a
reddening of 0.403 +/- 0.02 mag, within two sigma of the estimate above. The
cluster's metallicity and age are estimated to be 0.24 dex and 240 +/-25 Myr,
respectively. The derived mass function is in good agreement with the Salpeter
slope. The cluster space velocity components (U, V, W) were determined as
(-3.90 +/- 3.34, -13.76 +/- 5.69, +3.45 +/- 0.41) km/s. Perigalactic and
apogalactic distances were obtained as R_{p} = 6.85 and R_{a} = 7.44 kpc
respectively. The maximum vertical distance from the Galactic plane was
calculated as Z_{max} = 84 pc and the eccentricity of the orbit was determined
as e = 0.042.
|
[{'version': 'v1', 'created': 'Wed, 18 Dec 2019 17:46:03 GMT'}]
|
2020-03-18
|
[array(['Banks', 'Timothy', ''], dtype=object)
array(['Yontan', 'Talar', ''], dtype=object)
array(['Bilir', 'Selcuk', ''], dtype=object)
array(['Canbay', 'Remziye', ''], dtype=object)]
|
1,217 |
2010.13170
|
Ce Jin
|
Ce Jin, Jelani Nelson, Kewen Wu
|
An Improved Sketching Algorithm for Edit Distance
|
Appeared in STACS 2021. Fixed the title to match the conference
version
| null |
10.4230/LIPIcs.STACS.2021.45
| null |
cs.DS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We provide improved upper bounds for the simultaneous sketching complexity of
edit distance. Consider two parties, Alice with input $x\in\Sigma^n$ and Bob
with input $y\in\Sigma^n$, that share public randomness and are given a promise
that the edit distance $\mathsf{ed}(x,y)$ between their two strings is at most
some given value $k$. Alice must send a message $sx$ and Bob must send $sy$ to
a third party Charlie, who does not know the inputs but shares the same public
randomness and also knows $k$. Charlie must output $\mathsf{ed}(x,y)$ precisely
as well as a sequence of $\mathsf{ed}(x,y)$ edits required to transform $x$
into $y$. The goal is to minimize the lengths $|sx|, |sy|$ of the messages
sent.
The protocol of Belazzougui and Zhang (FOCS 2016), building upon the random
walk method of Chakraborty, Goldenberg, and Kouck\'y (STOC 2016), achieves a
maximum message length of $\tilde O(k^8)$ bits, where $\tilde O(\cdot)$ hides
$\mathrm{poly}(\log n)$ factors. In this work we build upon Belazzougui and
Zhang's protocol and provide an improved analysis demonstrating that a slight
modification of their construction achieves a bound of $\tilde O(k^3)$.
|
[{'version': 'v1', 'created': 'Sun, 25 Oct 2020 17:35:05 GMT'}
{'version': 'v2', 'created': 'Fri, 25 Dec 2020 03:50:06 GMT'}
{'version': 'v3', 'created': 'Sun, 2 May 2021 09:00:34 GMT'}]
|
2021-05-04
|
[array(['Jin', 'Ce', ''], dtype=object)
array(['Nelson', 'Jelani', ''], dtype=object)
array(['Wu', 'Kewen', ''], dtype=object)]
|
1,218 |
1712.07738
|
Boris Bellalta Dr.
|
Guillem Ca\~nizares and Boris Bellalta
|
Improving User's Experience through Simultaneous Multi-WLAN Connections
| null | null | null | null |
cs.NI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In highly-dense IEEE 802.11 deployments, areas covered by multiple Wireless
Local Area Networks (WLANs) will be common. This opens the door for stations
equipped with multiple IEEE 802.11 interfaces to use several WLANs
simultaneously, which not only may improve user experience, achieving a better
connection with higher throughput and resilience; but it may also improve the
network utilization. In this paper we investigate such a scenario. First, using
a test-bed, consisting of a single station equipped with two interfaces and two
access points, we observe that the file transfer time between the station and a
destination server can be significantly reduced, studying with special
attention the case in which both links do not have the same available
bandwidth. Then, using a Markovian model that captures the scenario's dynamics
in presence of multiple stations, we observe that in addition to improve
individual station's performance, we can also improve the utilization of a
multi-Access Points network despite increasing the contention level.
|
[{'version': 'v1', 'created': 'Wed, 20 Dec 2017 22:42:45 GMT'}]
|
2017-12-22
|
[array(['Cañizares', 'Guillem', ''], dtype=object)
array(['Bellalta', 'Boris', ''], dtype=object)]
|
1,219 |
1006.5413
|
Igor Rochev
|
Igor Rochev
|
New linear independence measures for values of q-hypergeometric series
|
8 pages
| null | null | null |
math.NT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We prove linear independence results for values of (a certain class of)
q-hypergeometric series in a quantitative form.
|
[{'version': 'v1', 'created': 'Mon, 28 Jun 2010 17:20:13 GMT'}]
|
2010-06-29
|
[array(['Rochev', 'Igor', ''], dtype=object)]
|
1,220 |
1903.07702
|
Xiaoou Zhang
|
Xiaoou Zhang, Yinhan Zhang, Satoshi Okamoto, Di Xiao
|
Thermal Hall Effect Induced by Magnon-Phonon Interactions
|
7 pages, 3 figures
|
Phys. Rev. Lett. 123, 167202 (2019)
|
10.1103/PhysRevLett.123.167202
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We propose a new mechanism for the thermal Hall effect in exchange spin-wave
systems, which is induced by the magnon-phonon interaction. Using symmetry
arguments, we first show that this effect is quite general, and exists whenever
the mirror symmetry in the direction of the magnetization is broken. We then
demonstrate our result in a collinear ferromagnet on a square lattice, with
perpendicular easy-axis anisotropy and Dzyaloshinskii-Moriya interaction from
mirror symmetry breaking. We show that the thermal Hall conductivity is
controlled by the resonant contribution from the anti-crossing points between
the magnon and phonon branches, and estimate its size to be comparable to that
of the magnon mediated thermal Hall effect.
|
[{'version': 'v1', 'created': 'Mon, 18 Mar 2019 20:23:45 GMT'}
{'version': 'v2', 'created': 'Thu, 26 Sep 2019 02:14:35 GMT'}]
|
2019-10-17
|
[array(['Zhang', 'Xiaoou', ''], dtype=object)
array(['Zhang', 'Yinhan', ''], dtype=object)
array(['Okamoto', 'Satoshi', ''], dtype=object)
array(['Xiao', 'Di', ''], dtype=object)]
|
1,221 |
1804.04446
|
Hexi Shi
|
H. Shi, E. Milotti, S. Bartalucci, M. Bazzi, S. Bertolucci, A.M.
Bragadireanu, M. Cargnelli, A. Clozza, L. De Paolis, S. Di Matteo, J.-P.
Egger, H. Elnaggar, C. Guaraldo, M. Iliescu, M. Laubenstein, J. Marton, M.
Miliucci, A. Pichler, D. Pietreanu, K. Piscicchia, A. Scordo, D.L. Sirghi, F.
Sirghi, L. Sperandio, O. Vazquez Doce, E. Widmann, J. Zmeskal, C. Curceanu
|
Experimental search for the violation of Pauli Exclusion Principle
|
18 pages, 10 figures, 2 tables, accepted by EPJ C on 12th April 2018
|
Eur. Phys. J. C (2018) 78: 319
|
10.1140/epjc/s10052-018-5802-4
| null |
physics.atom-ph physics.ins-det quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The VIolation of Pauli exclusion principle -2 experiment, or VIP-2
experiment, at the Laboratori Nazionali del Gran Sasso searches for x-rays from
copper atomic transition that are prohibited by the Pauli Exclusion Principle.
Candidate direct violation events come from the transition of a $2p$ electron
to the ground state that is already occupied by two electrons. From the first
data taking campaign in 2016 of VIP-2 experiment, we determined a best upper
limit of 3.4 $\times$ 10$^{-29}$ for the probability that such a violation
exists. Significant improvement in the control of the experimental systematics
was also achieved, although not explicitly reflected in the improved upper
limit. By introducing a simultaneous spectral fit of the signal and background
data in the analysis, we succeeded in taking into account systematic errors
that could not be evaluated previously in this type of measurements.
|
[{'version': 'v1', 'created': 'Thu, 12 Apr 2018 11:50:17 GMT'}
{'version': 'v2', 'created': 'Fri, 13 Apr 2018 10:36:06 GMT'}
{'version': 'v3', 'created': 'Mon, 23 Apr 2018 09:41:26 GMT'}]
|
2018-04-24
|
[array(['Shi', 'H.', ''], dtype=object)
array(['Milotti', 'E.', ''], dtype=object)
array(['Bartalucci', 'S.', ''], dtype=object)
array(['Bazzi', 'M.', ''], dtype=object)
array(['Bertolucci', 'S.', ''], dtype=object)
array(['Bragadireanu', 'A. M.', ''], dtype=object)
array(['Cargnelli', 'M.', ''], dtype=object)
array(['Clozza', 'A.', ''], dtype=object)
array(['De Paolis', 'L.', ''], dtype=object)
array(['Di Matteo', 'S.', ''], dtype=object)
array(['Egger', 'J. -P.', ''], dtype=object)
array(['Elnaggar', 'H.', ''], dtype=object)
array(['Guaraldo', 'C.', ''], dtype=object)
array(['Iliescu', 'M.', ''], dtype=object)
array(['Laubenstein', 'M.', ''], dtype=object)
array(['Marton', 'J.', ''], dtype=object)
array(['Miliucci', 'M.', ''], dtype=object)
array(['Pichler', 'A.', ''], dtype=object)
array(['Pietreanu', 'D.', ''], dtype=object)
array(['Piscicchia', 'K.', ''], dtype=object)
array(['Scordo', 'A.', ''], dtype=object)
array(['Sirghi', 'D. L.', ''], dtype=object)
array(['Sirghi', 'F.', ''], dtype=object)
array(['Sperandio', 'L.', ''], dtype=object)
array(['Doce', 'O. Vazquez', ''], dtype=object)
array(['Widmann', 'E.', ''], dtype=object)
array(['Zmeskal', 'J.', ''], dtype=object)
array(['Curceanu', 'C.', ''], dtype=object)]
|
1,222 |
1307.7398
|
Benjamin Andres
|
Benjamin Andres, Philipp Obermeier, Orkunt Sabuncu, Torsten Schaub,
and David Rajaratnam
|
ROSoClingo: A ROS package for ASP-based robot control
| null | null | null | null |
cs.RO cs.AI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Knowledge representation and reasoning capacities are vital to cognitive
robotics because they provide higher level cognitive functions for reasoning
about actions, environments, goals, perception, etc. Although Answer Set
Programming (ASP) is well suited for modelling such functions, there was so far
no seamless way to use ASP in a robotic environment. We address this
shortcoming and show how a recently developed reactive ASP system can be
harnessed to provide appropriate reasoning capacities within a robotic system.
To be more precise, we furnish a package integrating the reactive ASP solver
oClingo with the popular open-source robotic middleware ROS. The resulting
system, ROSoClingo, provides a generic way by which an ASP program can be used
to control the behaviour of a robot and to respond to the results of the
robot's actions.
|
[{'version': 'v1', 'created': 'Sun, 28 Jul 2013 20:10:51 GMT'}]
|
2013-07-30
|
[array(['Andres', 'Benjamin', ''], dtype=object)
array(['Obermeier', 'Philipp', ''], dtype=object)
array(['Sabuncu', 'Orkunt', ''], dtype=object)
array(['Schaub', 'Torsten', ''], dtype=object)
array(['Rajaratnam', 'David', ''], dtype=object)]
|
1,223 |
2009.10772
|
Ioannis Zouganelis
|
I. Zouganelis, A. De Groof, A. P. Walsh, D. R. Williams, D. Mueller,
O. C. St Cyr, F. Auchere, D. Berghmans, A. Fludra, T. S. Horbury, R. A.
Howard, S. Krucker, M. Maksimovic, C. J. Owen, J. Rodriiguez-Pacheco, M.
Romoli, S. K. Solanki, C. Watson, L. Sanchez, J. Lefort, P. Osuna, H. R.
Gilbert, T. Nieves-Chinchilla, L. Abbo, O. Alexandrova, A. Anastasiadis, V.
Andretta, E. Antonucci, T. Appourchaux, A. Aran, C. N. Arge, G. Aulanier, D.
Baker, S. D. Bale, M. Battaglia, L. Bellot Rubio, A. Bemporad, M. Berthomier,
K. Bocchialini, X. Bonnin, A. S. Brun, R. Bruno, E. Buchlin, J. Buechner, R.
Bucik, F. Carcaboso, R. Carr, I. Carrasco-Blazquez, B. Cecconi, I. Cernuda
Cangas, C. H. K. Chen, L. P. Chitta, T. Chust, K. Dalmasse, R. D'Amicis, V.
Da Deppo, R. De Marco, S. Dolei, L. Dolla, T. Dudok de Wit, L. van
Driel-Gesztelyi, J. P. Eastwood, F. Espinosa Lara, L. Etesi, A. Fedorov, F.
Felix-Redondo, S. Fineschi, B. Fleck, D. Fontaine, N. J. Fox, A. Gandorfer,
V. Genot, M. K. Georgoulis, S. Gissot, A. Giunta, L. Gizon, R. Gomez-Herrero,
C. Gontikakis, G. Graham, L. Green, T. Grundy, M. Haberreiter, L. K. Harra,
D. M. Hassler, J. Hirzberger, G. C. Ho, G. Hurford, D. Innes, K. Issautier,
A. W. James, N. Janitzek, M. Janvier, N. Jeffrey, J. Jenkins, Y.
Khotyaintsev, K.-L. Klein, E. P. Kontar, I. Kontogiannis, C. Krafft, V.
Krasnoselskikh, M. Kretzschmar, N. Labrosse, A. Lagg, F. Landini, B. Lavraud,
I. Leon, S. T. Lepri, G. R. Lewis, P. Liewer, J. Linker, S. Livi, D. M. Long,
P. Louarn, O. Malandraki, S. Maloney, V. Martinez-Pillet, M. Martinovic, A.
Masson, S. Matthews, L. Matteini, N. Meyer-Vernet, K. Moraitis, R. J. Morton,
S. Musset, G. Nicolaou, A. Nindos, H. O'Brien, D. Orozco Suarez, M. Owens, M.
Pancrazzi, A. Papaioannou, S. Parenti, E. Pariat, S. Patsourakos, D. Perrone,
H. Peter, R. F. Pinto, C. Plainaki, D. Plettemeier, S. P. Plunkett, J. M.
Raines, N. Raouafi, H. Reid, A. Retino, L. Rezeau, P. Rochus, L. Rodriguez,
L. Rodriguez-Garcia, M. Roth, A. P. Rouillard, F. Sahraoui, C. Sasso, J.
Schou, U. Schuehle, L. Sorriso-Valvo, J. Soucek, D. Spadaro, M. Stangalini,
D. Stansby, M. Steller, A. Strugarek, S. Stverak, R. Susino, D. Telloni, C.
Terasa, L. Teriaca, S. Toledo-Redondo, J. C. del Toro Iniesta, G. Tsiropoula,
A. Tsounis, K. Tziotziou, F. Valentini, A. Vaivads, A. Vecchio, M. Velli, C.
Verbeeck, A. Verdini, D. Verscharen, N. Vilmer, A. Vourlidas, R. Wicks, R. F.
Wimmer-Schweingruber, T. Wiegelmann, P. R. Young, A. N. Zhukov
|
The Solar Orbiter Science Activity Plan: translating solar and
heliospheric physics questions into action
|
20 pages, 1 figure, accepted by Astronomy & Astrophysics
|
A&A 642, A3 (2020)
|
10.1051/0004-6361/202038445
| null |
astro-ph.SR astro-ph.IM
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Solar Orbiter is the first space mission observing the solar plasma both in
situ and remotely, from a close distance, in and out of the ecliptic. The
ultimate goal is to understand how the Sun produces and controls the
heliosphere, filling the Solar System and driving the planetary environments.
With six remote-sensing and four in-situ instrument suites, the coordination
and planning of the operations are essential to address the following four
top-level science questions: (1) What drives the solar wind and where does the
coronal magnetic field originate? (2) How do solar transients drive
heliospheric variability? (3) How do solar eruptions produce energetic particle
radiation that fills the heliosphere? (4) How does the solar dynamo work and
drive connections between the Sun and the heliosphere? Maximising the mission's
science return requires considering the characteristics of each orbit,
including the relative position of the spacecraft to Earth (affecting downlink
rates), trajectory events (such as gravitational assist manoeuvres), and the
phase of the solar activity cycle. Furthermore, since each orbit's science
telemetry will be downloaded over the course of the following orbit, science
operations must be planned at mission level, rather than at the level of
individual orbits. It is important to explore the way in which those science
questions are translated into an actual plan of observations that fits into the
mission, thus ensuring that no opportunities are missed. First, the overarching
goals are broken down into specific, answerable questions along with the
required observations and the so-called Science Activity Plan (SAP) is
developed to achieve this. The SAP groups objectives that require similar
observations into Solar Orbiter Observing Plans (SOOPs), resulting in a
strategic, top-level view of the optimal opportunities for science observations
during the mission lifetime.
|
[{'version': 'v1', 'created': 'Tue, 22 Sep 2020 19:19:50 GMT'}]
|
2020-09-30
|
[array(['Zouganelis', 'I.', ''], dtype=object)
array(['De Groof', 'A.', ''], dtype=object)
array(['Walsh', 'A. P.', ''], dtype=object)
array(['Williams', 'D. R.', ''], dtype=object)
array(['Mueller', 'D.', ''], dtype=object)
array(['Cyr', 'O. C. St', ''], dtype=object)
array(['Auchere', 'F.', ''], dtype=object)
array(['Berghmans', 'D.', ''], dtype=object)
array(['Fludra', 'A.', ''], dtype=object)
array(['Horbury', 'T. S.', ''], dtype=object)
array(['Howard', 'R. A.', ''], dtype=object)
array(['Krucker', 'S.', ''], dtype=object)
array(['Maksimovic', 'M.', ''], dtype=object)
array(['Owen', 'C. J.', ''], dtype=object)
array(['Rodriiguez-Pacheco', 'J.', ''], dtype=object)
array(['Romoli', 'M.', ''], dtype=object)
array(['Solanki', 'S. K.', ''], dtype=object)
array(['Watson', 'C.', ''], dtype=object)
array(['Sanchez', 'L.', ''], dtype=object)
array(['Lefort', 'J.', ''], dtype=object)
array(['Osuna', 'P.', ''], dtype=object)
array(['Gilbert', 'H. R.', ''], dtype=object)
array(['Nieves-Chinchilla', 'T.', ''], dtype=object)
array(['Abbo', 'L.', ''], dtype=object)
array(['Alexandrova', 'O.', ''], dtype=object)
array(['Anastasiadis', 'A.', ''], dtype=object)
array(['Andretta', 'V.', ''], dtype=object)
array(['Antonucci', 'E.', ''], dtype=object)
array(['Appourchaux', 'T.', ''], dtype=object)
array(['Aran', 'A.', ''], dtype=object)
array(['Arge', 'C. N.', ''], dtype=object)
array(['Aulanier', 'G.', ''], dtype=object)
array(['Baker', 'D.', ''], dtype=object)
array(['Bale', 'S. D.', ''], dtype=object)
array(['Battaglia', 'M.', ''], dtype=object)
array(['Rubio', 'L. Bellot', ''], dtype=object)
array(['Bemporad', 'A.', ''], dtype=object)
array(['Berthomier', 'M.', ''], dtype=object)
array(['Bocchialini', 'K.', ''], dtype=object)
array(['Bonnin', 'X.', ''], dtype=object)
array(['Brun', 'A. S.', ''], dtype=object)
array(['Bruno', 'R.', ''], dtype=object)
array(['Buchlin', 'E.', ''], dtype=object)
array(['Buechner', 'J.', ''], dtype=object)
array(['Bucik', 'R.', ''], dtype=object)
array(['Carcaboso', 'F.', ''], dtype=object)
array(['Carr', 'R.', ''], dtype=object)
array(['Carrasco-Blazquez', 'I.', ''], dtype=object)
array(['Cecconi', 'B.', ''], dtype=object)
array(['Cangas', 'I. Cernuda', ''], dtype=object)
array(['Chen', 'C. H. K.', ''], dtype=object)
array(['Chitta', 'L. P.', ''], dtype=object)
array(['Chust', 'T.', ''], dtype=object)
array(['Dalmasse', 'K.', ''], dtype=object)
array(["D'Amicis", 'R.', ''], dtype=object)
array(['Da Deppo', 'V.', ''], dtype=object)
array(['De Marco', 'R.', ''], dtype=object)
array(['Dolei', 'S.', ''], dtype=object)
array(['Dolla', 'L.', ''], dtype=object)
array(['de Wit', 'T. Dudok', ''], dtype=object)
array(['van Driel-Gesztelyi', 'L.', ''], dtype=object)
array(['Eastwood', 'J. P.', ''], dtype=object)
array(['Lara', 'F. Espinosa', ''], dtype=object)
array(['Etesi', 'L.', ''], dtype=object)
array(['Fedorov', 'A.', ''], dtype=object)
array(['Felix-Redondo', 'F.', ''], dtype=object)
array(['Fineschi', 'S.', ''], dtype=object)
array(['Fleck', 'B.', ''], dtype=object)
array(['Fontaine', 'D.', ''], dtype=object)
array(['Fox', 'N. J.', ''], dtype=object)
array(['Gandorfer', 'A.', ''], dtype=object)
array(['Genot', 'V.', ''], dtype=object)
array(['Georgoulis', 'M. K.', ''], dtype=object)
array(['Gissot', 'S.', ''], dtype=object)
array(['Giunta', 'A.', ''], dtype=object)
array(['Gizon', 'L.', ''], dtype=object)
array(['Gomez-Herrero', 'R.', ''], dtype=object)
array(['Gontikakis', 'C.', ''], dtype=object)
array(['Graham', 'G.', ''], dtype=object)
array(['Green', 'L.', ''], dtype=object)
array(['Grundy', 'T.', ''], dtype=object)
array(['Haberreiter', 'M.', ''], dtype=object)
array(['Harra', 'L. K.', ''], dtype=object)
array(['Hassler', 'D. M.', ''], dtype=object)
array(['Hirzberger', 'J.', ''], dtype=object)
array(['Ho', 'G. C.', ''], dtype=object)
array(['Hurford', 'G.', ''], dtype=object)
array(['Innes', 'D.', ''], dtype=object)
array(['Issautier', 'K.', ''], dtype=object)
array(['James', 'A. W.', ''], dtype=object)
array(['Janitzek', 'N.', ''], dtype=object)
array(['Janvier', 'M.', ''], dtype=object)
array(['Jeffrey', 'N.', ''], dtype=object)
array(['Jenkins', 'J.', ''], dtype=object)
array(['Khotyaintsev', 'Y.', ''], dtype=object)
array(['Klein', 'K. -L.', ''], dtype=object)
array(['Kontar', 'E. P.', ''], dtype=object)
array(['Kontogiannis', 'I.', ''], dtype=object)
array(['Krafft', 'C.', ''], dtype=object)
array(['Krasnoselskikh', 'V.', ''], dtype=object)
array(['Kretzschmar', 'M.', ''], dtype=object)
array(['Labrosse', 'N.', ''], dtype=object)
array(['Lagg', 'A.', ''], dtype=object)
array(['Landini', 'F.', ''], dtype=object)
array(['Lavraud', 'B.', ''], dtype=object)
array(['Leon', 'I.', ''], dtype=object)
array(['Lepri', 'S. T.', ''], dtype=object)
array(['Lewis', 'G. R.', ''], dtype=object)
array(['Liewer', 'P.', ''], dtype=object)
array(['Linker', 'J.', ''], dtype=object)
array(['Livi', 'S.', ''], dtype=object)
array(['Long', 'D. M.', ''], dtype=object)
array(['Louarn', 'P.', ''], dtype=object)
array(['Malandraki', 'O.', ''], dtype=object)
array(['Maloney', 'S.', ''], dtype=object)
array(['Martinez-Pillet', 'V.', ''], dtype=object)
array(['Martinovic', 'M.', ''], dtype=object)
array(['Masson', 'A.', ''], dtype=object)
array(['Matthews', 'S.', ''], dtype=object)
array(['Matteini', 'L.', ''], dtype=object)
array(['Meyer-Vernet', 'N.', ''], dtype=object)
array(['Moraitis', 'K.', ''], dtype=object)
array(['Morton', 'R. J.', ''], dtype=object)
array(['Musset', 'S.', ''], dtype=object)
array(['Nicolaou', 'G.', ''], dtype=object)
array(['Nindos', 'A.', ''], dtype=object)
array(["O'Brien", 'H.', ''], dtype=object)
array(['Suarez', 'D. Orozco', ''], dtype=object)
array(['Owens', 'M.', ''], dtype=object)
array(['Pancrazzi', 'M.', ''], dtype=object)
array(['Papaioannou', 'A.', ''], dtype=object)
array(['Parenti', 'S.', ''], dtype=object)
array(['Pariat', 'E.', ''], dtype=object)
array(['Patsourakos', 'S.', ''], dtype=object)
array(['Perrone', 'D.', ''], dtype=object)
array(['Peter', 'H.', ''], dtype=object)
array(['Pinto', 'R. F.', ''], dtype=object)
array(['Plainaki', 'C.', ''], dtype=object)
array(['Plettemeier', 'D.', ''], dtype=object)
array(['Plunkett', 'S. P.', ''], dtype=object)
array(['Raines', 'J. M.', ''], dtype=object)
array(['Raouafi', 'N.', ''], dtype=object)
array(['Reid', 'H.', ''], dtype=object)
array(['Retino', 'A.', ''], dtype=object)
array(['Rezeau', 'L.', ''], dtype=object)
array(['Rochus', 'P.', ''], dtype=object)
array(['Rodriguez', 'L.', ''], dtype=object)
array(['Rodriguez-Garcia', 'L.', ''], dtype=object)
array(['Roth', 'M.', ''], dtype=object)
array(['Rouillard', 'A. P.', ''], dtype=object)
array(['Sahraoui', 'F.', ''], dtype=object)
array(['Sasso', 'C.', ''], dtype=object)
array(['Schou', 'J.', ''], dtype=object)
array(['Schuehle', 'U.', ''], dtype=object)
array(['Sorriso-Valvo', 'L.', ''], dtype=object)
array(['Soucek', 'J.', ''], dtype=object)
array(['Spadaro', 'D.', ''], dtype=object)
array(['Stangalini', 'M.', ''], dtype=object)
array(['Stansby', 'D.', ''], dtype=object)
array(['Steller', 'M.', ''], dtype=object)
array(['Strugarek', 'A.', ''], dtype=object)
array(['Stverak', 'S.', ''], dtype=object)
array(['Susino', 'R.', ''], dtype=object)
array(['Telloni', 'D.', ''], dtype=object)
array(['Terasa', 'C.', ''], dtype=object)
array(['Teriaca', 'L.', ''], dtype=object)
array(['Toledo-Redondo', 'S.', ''], dtype=object)
array(['Iniesta', 'J. C. del Toro', ''], dtype=object)
array(['Tsiropoula', 'G.', ''], dtype=object)
array(['Tsounis', 'A.', ''], dtype=object)
array(['Tziotziou', 'K.', ''], dtype=object)
array(['Valentini', 'F.', ''], dtype=object)
array(['Vaivads', 'A.', ''], dtype=object)
array(['Vecchio', 'A.', ''], dtype=object)
array(['Velli', 'M.', ''], dtype=object)
array(['Verbeeck', 'C.', ''], dtype=object)
array(['Verdini', 'A.', ''], dtype=object)
array(['Verscharen', 'D.', ''], dtype=object)
array(['Vilmer', 'N.', ''], dtype=object)
array(['Vourlidas', 'A.', ''], dtype=object)
array(['Wicks', 'R.', ''], dtype=object)
array(['Wimmer-Schweingruber', 'R. F.', ''], dtype=object)
array(['Wiegelmann', 'T.', ''], dtype=object)
array(['Young', 'P. R.', ''], dtype=object)
array(['Zhukov', 'A. N.', ''], dtype=object)]
|
1,224 |
gr-qc/0204026
|
Luca Fabbri
|
Luca Fabbri
|
Taking Kaluza seriously leads to a non-gauge-invariant electromagnetic
theory in a curved space-time
|
6 pages, corrected typos
|
Annales Fond.Broglie 29:641-649,2004
| null | null |
gr-qc
| null |
Kaluza's mertic with the cylinder condition is considered without the weak
gravitational field approximation. It is shown that these hypoteses lead to a
non-gauge-invariant electromagnetic theory in a curved space-time. The problem
of electro-gravitational unification is considered from this point of view.
|
[{'version': 'v1', 'created': 'Fri, 5 Apr 2002 14:56:24 GMT'}
{'version': 'v2', 'created': 'Wed, 7 Jul 2004 15:43:36 GMT'}]
|
2009-05-18
|
[array(['Fabbri', 'Luca', ''], dtype=object)]
|
1,225 |
1810.13394
|
Zhengliang Liang
|
Zheng-Liang Liang, Lin Zhang, Ping Zhang and Fawei Zheng
|
The wavefunction reconstruction effects in calculation of DM-induced
electronic transition in semiconductor targets
|
A missing factor $64^{-3/2}=1/512$ associated with the Fourier
transformation is added to both the AE and PS event rates in this version.
The ratio between the AE and PS event rates is not affected
| null |
10.1007/JHEP01(2019)149
| null |
cond-mat.mtrl-sci hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The physics of the electronic excitation in semiconductors induced by sub-GeV
dark matter (DM) have been extensively discussed in literature, under the
framework of the standard plane wave (PW) and pseudopotential calculation
scheme. In this paper, we investigate the implication of the all-electron (AE)
reconstruction on estimation of the DM-induced electronic transition event
rates. As a benchmark study, we first calculate the wavefunctions in silicon
and germanium bulk crystals based on both the AE and pseudo (PS) schemes within
the projector augmented wave (PAW) framework, and then make comparisons between
the calculated excitation event rates obtained from these two approaches. It
turns out that in process where large momentum transfer is kinetically allowed,
the two calculated event rates can differ by a factor of a few. Such
discrepancies are found to stem from the high-momentum components neglected in
the PS scheme. It is thus implied that the correction from the AE wavefunction
in the core region is necessary for an accurate estimate of the DM-induced
transition event rate in semiconductors.
|
[{'version': 'v1', 'created': 'Mon, 8 Oct 2018 15:00:45 GMT'}
{'version': 'v2', 'created': 'Mon, 21 Jan 2019 14:55:45 GMT'}
{'version': 'v3', 'created': 'Mon, 8 Apr 2019 05:17:51 GMT'}]
|
2019-04-09
|
[array(['Liang', 'Zheng-Liang', ''], dtype=object)
array(['Zhang', 'Lin', ''], dtype=object)
array(['Zhang', 'Ping', ''], dtype=object)
array(['Zheng', 'Fawei', ''], dtype=object)]
|
1,226 |
1208.1396
|
Ron Folman
|
Anat Daniel, Ruti Agou, Omer Amit, David Groswasser, Yonathan Japha
and Ron Folman
|
Damping of local Rabi oscillations in the presence of thermal motion
|
Found in Physical Review A (2013)
| null |
10.1103/PhysRevA.87.063402
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigate both theoretically and experimentally the effect of thermal
motion of laser cooled atoms on the coherence of Rabi oscillations induced by
an inhomogeneous driving field. The experimental results are in excellent
agreement with the derived analytical expressions. For freely falling atoms
with negligible collisions, as those used in our experiment, we find that the
amplitude of the Rabi oscillations decays with time $t$ as $\exp[-(t/\tau)^4]$,
where the coherence time $\tau$ drops with increasing temperature and field
gradient. We discuss the consequences of these results regarding the fidelity
of Rabi rotations of atomic qubits. We also show that the process is equivalent
to the loss of coherence of atoms undergoing a Ramsey sequence in the presence
of static magnetic field gradients - a common situation in many applications.
In addition, our results are relevant for determining the resolution when
utilizing atoms as field probes. Using numerical calculations, our model can be
easily extended to situations in which the atoms are confined by a potential or
to situations where collisions are important.
|
[{'version': 'v1', 'created': 'Tue, 7 Aug 2012 11:09:44 GMT'}
{'version': 'v2', 'created': 'Sun, 26 May 2013 14:23:20 GMT'}]
|
2015-06-11
|
[array(['Daniel', 'Anat', ''], dtype=object)
array(['Agou', 'Ruti', ''], dtype=object)
array(['Amit', 'Omer', ''], dtype=object)
array(['Groswasser', 'David', ''], dtype=object)
array(['Japha', 'Yonathan', ''], dtype=object)
array(['Folman', 'Ron', ''], dtype=object)]
|
1,227 |
1112.1522
|
Ivo Michailov Ph.D.
|
Ivo M. Michailov and Nikola P. Ziapkov
|
On realizability of $p$-groups as Galois groups
|
In this version is added an example at the end of Section 6. Also,
some mistakes are corrected and the references are updated
| null | null | null |
math.AG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this article we survey and examine the realizability of $p$-groups as
Galois groups over arbitrary fields. In particular we consider various
cohomological criteria that lead to necessary and sufficient conditions for the
realizability of such a group as a Galois group, the embedding problem (i.e.,
realizability over a given subextension), descriptions of such extensions,
automatic realizations among $p$-groups, and related topics.
|
[{'version': 'v1', 'created': 'Wed, 7 Dec 2011 11:04:05 GMT'}
{'version': 'v2', 'created': 'Thu, 5 Jan 2012 10:32:28 GMT'}]
|
2012-01-06
|
[array(['Michailov', 'Ivo M.', ''], dtype=object)
array(['Ziapkov', 'Nikola P.', ''], dtype=object)]
|
1,228 |
hep-lat/0412019
|
Konstantin Petrov
|
Vladimir K. Petrov
|
Errors and ambiguity in transition from Fourier series to Fourier
integrals
| null | null | null | null |
hep-lat
| null |
Transition from Fourier series to Fourier integrals is considered and error
introduced by ordinary substitution of integration for summing is estimated.
Ambiguity caused by transition from discrete function to continuous one is
examined and conditions under which this ambiguity does not arise are
suggested.
|
[{'version': 'v1', 'created': 'Mon, 13 Dec 2004 03:04:38 GMT'}]
|
2007-05-23
|
[array(['Petrov', 'Vladimir K.', ''], dtype=object)]
|
1,229 |
1401.2323
|
Andreas Ketterer
|
A. Ketterer, A. Keller, T. Coudreau and P. Milman
|
Testing the Clauser-Horne-Shimony-Holt inequality using observables with
arbitrary spectrum
|
10 pages, 4 figures, including a new Sec. 4
|
Phys. Rev. A 91, 012106 (2015)
|
10.1103/PhysRevA.91.012106
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The Clauser-Horne-Shimony and Holt inequality applies when measurements with
binary outcomes are performed on physical systems under the assumption of local
realism. Testing such inequalities in the quantum realm usually involves either
measurements of two--valued quantum observables or pre-defining a context
dependent binning procedure. Here we establish the conditions to test the
Clauser-Horne-Shimony and Holt inequality using any quantum observable. Our
result applies to observables with an arbitrary spectrum and no prior knowledge
of their underlying Hilbert space's dimension is required. Finally, we
demonstrate the proposed general measurement strategy, that can be seen as
positive operator valued measurements performed on the system, using the
formalism of modular variables applied to the transverse degrees of freedom of
single photons.
|
[{'version': 'v1', 'created': 'Fri, 10 Jan 2014 13:23:39 GMT'}
{'version': 'v2', 'created': 'Mon, 27 Apr 2015 08:58:50 GMT'}]
|
2015-04-28
|
[array(['Ketterer', 'A.', ''], dtype=object)
array(['Keller', 'A.', ''], dtype=object)
array(['Coudreau', 'T.', ''], dtype=object)
array(['Milman', 'P.', ''], dtype=object)]
|
1,230 |
1604.01175
|
Guilherme D. da Fonseca
|
Sunil Arya, Guilherme D. da Fonseca, David M. Mount
|
On the Combinatorial Complexity of Approximating Polytopes
|
In Proceedings of the 32nd International Symposium Computational
Geometry (SoCG 2016) and accepted to SoCG 2016 special issue of Discrete and
Computational Geometry
|
Discrete & Computational Geometry, Volume 58, Issue 4, pp 849-870,
2017
|
10.1007/s00454-016-9856-5
| null |
cs.CG math.MG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Approximating convex bodies succinctly by convex polytopes is a fundamental
problem in discrete geometry. A convex body $K$ of diameter $\mathrm{diam}(K)$
is given in Euclidean $d$-dimensional space, where $d$ is a constant. Given an
error parameter $\varepsilon > 0$, the objective is to determine a polytope of
minimum combinatorial complexity whose Hausdorff distance from $K$ is at most
$\varepsilon \cdot \mathrm{diam}(K)$. By combinatorial complexity we mean the
total number of faces of all dimensions of the polytope. A well-known result by
Dudley implies that $O(1/\varepsilon^{(d-1)/2})$ facets suffice, and a dual
result by Bronshteyn and Ivanov similarly bounds the number of vertices, but
neither result bounds the total combinatorial complexity. We show that there
exists an approximating polytope whose total combinatorial complexity is
$\tilde{O}(1/\varepsilon^{(d-1)/2})$, where $\tilde{O}$ conceals a
polylogarithmic factor in $1/\varepsilon$. This is a significant improvement
upon the best known bound, which is roughly $O(1/\varepsilon^{d-2})$.
Our result is based on a novel combination of both old and new ideas. First,
we employ Macbeath regions, a classical structure from the theory of convexity.
The construction of our approximating polytope employs a new stratified
placement of these regions. Second, in order to analyze the combinatorial
complexity of the approximating polytope, we present a tight analysis of a
width-based variant of B\'{a}r\'{a}ny and Larman's economical cap covering.
Finally, we use a deterministic adaptation of the witness-collector technique
(developed recently by Devillers et al.) in the context of our stratified
construction.
|
[{'version': 'v1', 'created': 'Tue, 5 Apr 2016 08:45:11 GMT'}
{'version': 'v2', 'created': 'Wed, 20 Jul 2016 12:08:59 GMT'}
{'version': 'v3', 'created': 'Sat, 3 Dec 2016 19:13:41 GMT'}
{'version': 'v4', 'created': 'Wed, 21 Dec 2016 15:36:10 GMT'}]
|
2018-01-11
|
[array(['Arya', 'Sunil', ''], dtype=object)
array(['da Fonseca', 'Guilherme D.', ''], dtype=object)
array(['Mount', 'David M.', ''], dtype=object)]
|
1,231 |
2206.09418
|
Xinquan Huang
|
Wenlei Shi, Xinquan Huang, Xiaotian Gao, Xinran Wei, Jia Zhang, Jiang
Bian, Mao Yang, Tie-Yan Liu
|
LordNet: Learning to Solve Parametric Partial Differential Equations
without Simulated Data
| null | null | null | null |
cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Neural operators, as a powerful approximation to the non-linear operators
between infinite-dimensional function spaces, have proved to be promising in
accelerating the solution of partial differential equations (PDE). However, it
requires a large amount of simulated data which can be costly to collect,
resulting in a chicken-egg dilemma and limiting its usage in solving PDEs. To
jump out of the dilemma, we propose a general data-free paradigm where the
neural network directly learns physics from the mean squared residual (MSR)
loss constructed by the discretized PDE. We investigate the physical
information in the MSR loss and identify the challenge that the neural network
must have the capacity to model the long range entanglements in the spatial
domain of the PDE, whose patterns vary in different PDEs. Therefore, we propose
the low-rank decomposition network (LordNet) which is tunable and also
efficient to model various entanglements. Specifically, LordNet learns a
low-rank approximation to the global entanglements with simple fully connected
layers, which extracts the dominant pattern with reduced computational cost.
The experiments on solving Poisson's equation and Navier-Stokes equation
demonstrate that the physical constraints by the MSR loss can lead to better
accuracy and generalization ability of the neural network. In addition, LordNet
outperforms other modern neural network architectures in both PDEs with the
fewest parameters and the fastest inference speed. For Navier-Stokes equation,
the learned operator is over 50 times faster than the finite difference
solution with the same computational resources.
|
[{'version': 'v1', 'created': 'Sun, 19 Jun 2022 14:41:08 GMT'}]
|
2022-06-22
|
[array(['Shi', 'Wenlei', ''], dtype=object)
array(['Huang', 'Xinquan', ''], dtype=object)
array(['Gao', 'Xiaotian', ''], dtype=object)
array(['Wei', 'Xinran', ''], dtype=object)
array(['Zhang', 'Jia', ''], dtype=object)
array(['Bian', 'Jiang', ''], dtype=object)
array(['Yang', 'Mao', ''], dtype=object)
array(['Liu', 'Tie-Yan', ''], dtype=object)]
|
1,232 |
1603.03131
|
Nobuhito Kokubo
|
Nobuhito Kokubo, Hajime Miyahara, Satoru Okayasu, and Tsutomu Nojima
|
Commensurate and Incommensurate Vortex States Confined in Mesoscopic
Triangles of Weak Pinning Superconducting Thin Films
|
3 figures, 1 table
|
Journal of the Physical Society of Japan 84, 043704 (2015)
|
10.7566/JPSJ.84.043704
| null |
cond-mat.supr-con cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report on the direct observation of vortex states confined in equilateral
and isosceles triangular dots of weak pinning amorphous superconducting thin
films with a scanning superconducting quantum interference device microscope.
The observed images illustrate not only pieces of a triangular vortex lattice
as commensurate vortex states, but also incommensurate vortex states including
metastable ones. We comparatively analyze vortex configurations found in
different sample geometries and discuss the symmetry and stability of
commensurate and incommensurate vortex configurations against deformations of
the sample shape.
|
[{'version': 'v1', 'created': 'Thu, 10 Mar 2016 02:57:46 GMT'}]
|
2016-03-11
|
[array(['Kokubo', 'Nobuhito', ''], dtype=object)
array(['Miyahara', 'Hajime', ''], dtype=object)
array(['Okayasu', 'Satoru', ''], dtype=object)
array(['Nojima', 'Tsutomu', ''], dtype=object)]
|
1,233 |
cond-mat/0304091
|
Pedro Orellana
|
Gustavo. A. Lara, Pedro A. Orellana and Enrique V. Anda
|
Kondo effect in a double quantum-dot molecule under the effect of an
electric and magnetic field
|
5 pages, 4 figures. To appear in Sol. State Comm
| null |
10.1016/S0038-1098(03)00303-X
| null |
cond-mat.mes-hall cond-mat.str-el
| null |
Electron tunneling through a double quantum dot molecule, in the Kondo
regime, under the effect of a magnetic field and an applied voltage, is
studied. This system possesses a complex response to the applied fields
characterized by a tristable solution for the conductance. The different nature
of the solutions are studied in and out thermodynamical equilibrium. It is
shown that the interdot coupling and the fields can be used to control the
region of multistability. The mean-field slave-boson formalism is used to
obtain the solution of the problem.
|
[{'version': 'v1', 'created': 'Thu, 3 Apr 2003 20:09:20 GMT'}]
|
2009-11-10
|
[array(['Lara', 'Gustavo. A.', ''], dtype=object)
array(['Orellana', 'Pedro A.', ''], dtype=object)
array(['Anda', 'Enrique V.', ''], dtype=object)]
|
1,234 |
2002.00015
|
Simeon Bird
|
Simeon Bird, Yu Feng, Christian Pedersen, Andreu Font-Ribera
|
More accurate simulations with separate initial conditions for baryons
and dark matter
|
18 pages, 6 figures. Accepted to JCAP
| null |
10.1088/1475-7516/2020/06/002
| null |
astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We revisit techniques for performing cosmological simulations with both
baryons and cold dark matter when each fluid has different initial conditions,
as is the case at the end of the radiation era. Most simulations do not
reproduce the linear prediction for the difference between the cold dark matter
and baryon perturbations. We show that this is due to the common use of offset
regular grids when setting up the particle initial conditions. The correct
behaviour can be obtained without any loss of simulation resolution by using a
Lagrangian glass for the baryon particles. We further show that the difference
between cold dark matter and baryons may affect predictions for the Lyman-alpha
forest flux power spectrum at the 5% level, potentially impacting current
cosmological constraints.
|
[{'version': 'v1', 'created': 'Fri, 31 Jan 2020 19:00:02 GMT'}
{'version': 'v2', 'created': 'Fri, 29 May 2020 00:04:46 GMT'}]
|
2020-06-17
|
[array(['Bird', 'Simeon', ''], dtype=object)
array(['Feng', 'Yu', ''], dtype=object)
array(['Pedersen', 'Christian', ''], dtype=object)
array(['Font-Ribera', 'Andreu', ''], dtype=object)]
|
1,235 |
0708.2098
|
Sourav Sur
|
Saurya Das (Lethbridge U.), S. Shankaranarayanan (Potsdam, Max Planck
Inst.), Sourav Sur (Lethbridge U.)
|
Where are the degrees of freedom responsible for black hole entropy?
|
6 pages, 4 figures, Invited talk at Theory Canada III, Edmonton,
Alberta, Canada, June 16, 2007
|
Can.J.Phys.86:653-658,2008
|
10.1139/P07-183
| null |
gr-qc hep-th
| null |
Considering the entanglement between quantum field degrees of freedom inside
and outside the horizon as a plausible source of black hole entropy, we address
the question: {\it where are the degrees of freedom that give rise to this
entropy located?} When the field is in ground state, the black hole area law is
obeyed and the degrees of freedom near the horizon contribute most to the
entropy. However, for excited state, or a superposition of ground state and
excited state, power-law corrections to the area law are obtained, and more
significant contributions from the degrees of freedom far from the horizon are
shown.
|
[{'version': 'v1', 'created': 'Wed, 15 Aug 2007 20:17:08 GMT'}]
|
2008-11-07
|
[array(['Das', 'Saurya', '', 'Lethbridge U.'], dtype=object)
array(['Shankaranarayanan', 'S.', '', 'Potsdam, Max Planck\n Inst.'],
dtype=object)
array(['Sur', 'Sourav', '', 'Lethbridge U.'], dtype=object)]
|
1,236 |
1008.3429
|
John Tobin
|
John J. Tobin, Lee Hartmann, and Laurent Loinard
|
The Inner Envelope and Disk of L1527 Revealed: Gemini L'-band Scattered
Light Imaging
|
Accepted to ApJ Letters; 14 pages, 4 Figures, 1 Table
| null |
10.1088/2041-8205/722/1/L12
| null |
astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present high-resolution L'-band imaging of the inner scattered light
structure of Class 0 protostar L1527 IRS (IRAS 04368+2557) taken with the
Gemini North telescope. The central point-source like feature seen in Spitzer
Space Telescope IRAC images is resolved in the Gemini image into a compact
bipolar structure with a narrow dark lane in the center. Two scattered light
lobes are extended ~1.8" (200 AU) perpendicular to the direction of the outflow
and ~2.5" (350 AU) along the outflow axis; the narrow dark lane between the
scattered light lobes is ~0.45" (60 AU) thick. The observations are consistent
with our initial modeling of a bright inner cavity separated by a dark lane due
to extinction along the line of sight of the central protostar by the disk
(Tobin et al. 2008). The bright, compact scattered light might be due to
complex inner structure generated by the outflow, as suggested in our first
paper, or it may more likely be the upper layers of the disk forming from
infalling matter.
|
[{'version': 'v1', 'created': 'Fri, 20 Aug 2010 02:55:08 GMT'}]
|
2015-05-19
|
[array(['Tobin', 'John J.', ''], dtype=object)
array(['Hartmann', 'Lee', ''], dtype=object)
array(['Loinard', 'Laurent', ''], dtype=object)]
|
1,237 |
1710.01262
|
Hossein Babashah
|
Fereshte Mozafari, Hossein Babashah, Somayyeh Koohi, Zahra Kavehvash
|
DNA Sequence Alignment by Window based Optical Correlator
| null | null | null | null |
q-bio.QM
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In genomics, pattern matching against a sequence of nucleotides plays a
pivotal role for DNA sequence alignment and comparing genomes. This helps
tackling some diseases, such as cancer in humans. The complexity of searching
biological sequences in big databases has transformed sequence alignment
problem into a challenging field of research in bioinformatics. A large number
of research has been carried to solve this problem based on electronic
computers. The required extensive amount of computations for handling this huge
database in electronic computers leads to vast amounts of energy consumption
for electrical processing and cooling. On the other hand, optical processing
due to its parallel nature is much faster than electrical counterpart at a
fraction of energy consumption level and cost. In this paper, an algorithm
based on optical parallel processing is proposed that not only locate
similarity between sequences but also determines the exact location of edits.
The proposed algorithm is based on partitioning the read sequence into some
parts, namely, windows, then, computing their correlation with reference
sequence in parallel. Multiple metamaterial based optical correlators are used
in parallel to optically implement the architecture. Design limitations and
challenges of the architecture are also discussed in details. The simulation
results, comparing with the well-known BLAST algorithm, demonstrate superior
speed, accuracy, and much lower power consumption.
|
[{'version': 'v1', 'created': 'Tue, 3 Oct 2017 16:22:35 GMT'}]
|
2017-10-04
|
[array(['Mozafari', 'Fereshte', ''], dtype=object)
array(['Babashah', 'Hossein', ''], dtype=object)
array(['Koohi', 'Somayyeh', ''], dtype=object)
array(['Kavehvash', 'Zahra', ''], dtype=object)]
|
1,238 |
1902.10341
|
Barak Zackay
|
Tejaswi Venumadhav, Barak Zackay, Javier Roulet, Liang Dai and Matias
Zaldarriaga
|
A New Search Pipeline for Compact Binary Mergers: Results for Binary
Black Holes in the First Observing Run of Advanced LIGO
|
Comments are welcome!
|
Phys. Rev. D 100, 023011 (2019)
|
10.1103/PhysRevD.100.023011
| null |
astro-ph.IM astro-ph.HE gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we report on the construction of a new and independent
pipeline for analyzing the public data from the first observing run of advanced
LIGO for mergers of compact binary systems. The pipeline incorporates different
techniques and makes independent implementation choices in all its stages
including the search design, the method to construct template banks, the
automatic routines to detect bad data segments ("glitches") and to insulate
good data from them, the procedure to account for the non-stationary nature of
the detector noise, the signal-quality vetoes at the single-detector level and
the methods to combine results from multiple detectors. Our pipeline enabled us
to identify a new binary black-hole merger GW151216 in the public LIGO data.
This paper serves as a bird's eye view of the pipeline's important stages. Full
details and derivations underlying the various stages will appear in
accompanying papers.
|
[{'version': 'v1', 'created': 'Wed, 27 Feb 2019 06:01:57 GMT'}
{'version': 'v2', 'created': 'Tue, 19 Mar 2019 18:32:22 GMT'}]
|
2019-07-31
|
[array(['Venumadhav', 'Tejaswi', ''], dtype=object)
array(['Zackay', 'Barak', ''], dtype=object)
array(['Roulet', 'Javier', ''], dtype=object)
array(['Dai', 'Liang', ''], dtype=object)
array(['Zaldarriaga', 'Matias', ''], dtype=object)]
|
1,239 |
astro-ph/9902042
|
Roland E. Allen
|
R.E. Allen
|
Four Testable Predictions of Instanton Cosmology
|
4 pages. 2 minor changes to reconcile with the printed version
|
Cosmo-98, Second International Workshop on Particle Physics and
the Early Universe, edited by D. O. Caldwell (American Institute of Physics,
New York, 1999)
|
10.1063/1.59392
| null |
astro-ph
| null |
A new cosmological model makes the following predictions: (1) The
deceleration parameter $q_{0}$ is approximately zero. (2) The mass density
parameter $\Omega_{m}$ is less than 1. (3) The universe is spatially closed,
but is asymptotically flat as $t\to\infty$, regardless of its matter content.
(4) The age of the universe is approximately 15 Gyr if the Hubble parameter $h$
is approximately 0.65.
|
[{'version': 'v1', 'created': 'Tue, 2 Feb 1999 19:35:44 GMT'}
{'version': 'v2', 'created': 'Wed, 3 Feb 1999 15:58:18 GMT'}
{'version': 'v3', 'created': 'Mon, 20 Sep 1999 03:39:56 GMT'}]
|
2009-10-31
|
[array(['Allen', 'R. E.', ''], dtype=object)]
|
1,240 |
2005.04263
|
Alan T. K. Godfrey
|
A. T. K. Godfrey, L. N. D. Kallepalli, J. J. Ratt\'e, C. Zhang and P.
B. Corkum
|
Femtosecond-laser-induced nanoscale blisters in polyimide thin films
through nonlinear absorption
|
19 pages, 8 figures, submitted to Physical Reviews Applied
|
Phys. Rev. Applied 14, 044057 (2020)
|
10.1103/PhysRevApplied.14.044057
| null |
physics.optics physics.app-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Nonlinear absorption of femtosecond laser pulses provides a unique
opportunity to confine energy deposition in any medium to a region that is
below the focal diameter of a pulse. Illumination of a polymer film through a
transparent high bandgap material such as glass, followed by nonlinear
absorption of 800 nm light in polymers, allows us to further restrict
absorption to a very thin layer along the propagation direction. We demonstrate
this confinement by simulating femtosecond-laser-induced polymer modification
by linear, two-photon and three-photon absorption, and discuss the control over
energy absorption in polymers that multiphoton processes offer. Energy
deposited behind a thin polymer film induces a protruding blister. We present
experimental results of blister diameter and height scaling with pulse energy.
Using 0.95 NA focussing, we obtained laser-induced blisters with diameters as
small as 700 nm suggesting blister-based Laser-Induced Forward Transfer is
possible on and below the single-micron scale. Sub-micrometer blister formation
using femtosecond lasers also offers a novel method of direct, precise
laser-writing of microstructures on films with single laser pulses. This method
is a possible alternative to lithography, laser milling, and laser-based
additive machining which leaves the surface composition unchanged.
|
[{'version': 'v1', 'created': 'Fri, 8 May 2020 19:17:39 GMT'}]
|
2020-11-04
|
[array(['Godfrey', 'A. T. K.', ''], dtype=object)
array(['Kallepalli', 'L. N. D.', ''], dtype=object)
array(['Ratté', 'J. J.', ''], dtype=object)
array(['Zhang', 'C.', ''], dtype=object)
array(['Corkum', 'P. B.', ''], dtype=object)]
|
1,241 |
1103.4815
|
Konrad Waldorf
|
Thomas Nikolaus, Konrad Waldorf
|
Four Equivalent Versions of Non-Abelian Gerbes
|
65 pages, v2: minor corrections, new Corollary 7.2 about equivariant
gerbes; v3: again minor corrections; v3 is the final and published version
|
Pacific J. Math., 264-2 (2013), 355-420
| null | null |
math.DG math-ph math.CT math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We recall and partially improve four versions of smooth, non-abelian gerbes:
Cech cocycles, classifying maps, bundle gerbes, and principal 2-bundles. We
prove that all these four versions are equivalent, and so establish new
relations between interesting recent developments. Prominent partial results we
prove are a bijection between continuous and smooth non-abelian cohomology, and
an explicit equivalence between bundle gerbes and principal 2-bundles as
2-stacks.
|
[{'version': 'v1', 'created': 'Thu, 24 Mar 2011 17:10:40 GMT'}
{'version': 'v2', 'created': 'Tue, 24 May 2011 14:08:39 GMT'}
{'version': 'v3', 'created': 'Wed, 17 Jul 2013 16:20:47 GMT'}]
|
2013-12-10
|
[array(['Nikolaus', 'Thomas', ''], dtype=object)
array(['Waldorf', 'Konrad', ''], dtype=object)]
|
1,242 |
2304.08230
|
Elena Govi
|
Elena Govi, Davide Sapienza, Carmelo Scribano, Tobia Poppi, Giorgia
Franchini, Paola Ard\`on, Micaela Verucchi and Marko Bertogna
|
Uncovering the Background-Induced bias in RGB based 6-DoF Object Pose
Estimation
|
17 pages, 10 figures, submitted to EURASIP Journal on Image and Video
Processing
| null | null | null |
cs.CV cs.AI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In recent years, there has been a growing trend of using data-driven methods
in industrial settings. These kinds of methods often process video images or
parts, therefore the integrity of such images is crucial. Sometimes datasets,
e.g. consisting of images, can be sophisticated for various reasons. It becomes
critical to understand how the manipulation of video and images can impact the
effectiveness of a machine learning method. Our case study aims precisely to
analyze the Linemod dataset, considered the state of the art in 6D pose
estimation context. That dataset presents images accompanied by ArUco markers;
it is evident that such markers will not be available in real-world contexts.
We analyze how the presence of the markers affects the pose estimation
accuracy, and how this bias may be mitigated through data augmentation and
other methods. Our work aims to show how the presence of these markers goes to
modify, in the testing phase, the effectiveness of the deep learning method
used. In particular, we will demonstrate, through the tool of saliency maps,
how the focus of the neural network is captured in part by these ArUco markers.
Finally, a new dataset, obtained by applying geometric tools to Linemod, will
be proposed in order to demonstrate our hypothesis and uncovering the bias. Our
results demonstrate the potential for bias in 6DOF pose estimation networks,
and suggest methods for reducing this bias when training with markers.
|
[{'version': 'v1', 'created': 'Mon, 17 Apr 2023 12:54:20 GMT'}]
|
2023-04-18
|
[array(['Govi', 'Elena', ''], dtype=object)
array(['Sapienza', 'Davide', ''], dtype=object)
array(['Scribano', 'Carmelo', ''], dtype=object)
array(['Poppi', 'Tobia', ''], dtype=object)
array(['Franchini', 'Giorgia', ''], dtype=object)
array(['Ardòn', 'Paola', ''], dtype=object)
array(['Verucchi', 'Micaela', ''], dtype=object)
array(['Bertogna', 'Marko', ''], dtype=object)]
|
1,243 |
2102.12676
|
Jiangtao Duan
|
Jiangtao Duan, Wei Gao, Yanyuan Ma and Hon Keung Tony Ng
|
Efficient computational algorithms for approximate optimal designs
| null | null | null | null |
math.ST stat.TH
|
http://creativecommons.org/licenses/by/4.0/
|
In this paper, we propose two simple yet efficient computational algorithms
to obtain approximate optimal designs for multi-dimensional linear regression
on a large variety of design spaces. We focus on the two commonly used optimal
criteria, $D$- and $A$-optimal criteria. For $D$-optimality, we provide an
alternative proof for the monotonic convergence for $D$-optimal criterion and
propose an efficient computational algorithm to obtain the approximate
$D$-optimal design. We further show that the proposed algorithm converges to
the $D$-optimal design, and then prove that the approximate $D$-optimal design
converges to the continuous $D$-optimal design under certain conditions. For
$A$-optimality, we provide an efficient algorithm to obtain approximate
$A$-optimal design and conjecture the monotonicity of the proposed algorithm.
Numerical comparisons suggest that the proposed algorithms perform well and
they are comparable or superior to some existing algorithms.
|
[{'version': 'v1', 'created': 'Thu, 25 Feb 2021 04:21:31 GMT'}]
|
2021-02-26
|
[array(['Duan', 'Jiangtao', ''], dtype=object)
array(['Gao', 'Wei', ''], dtype=object)
array(['Ma', 'Yanyuan', ''], dtype=object)
array(['Ng', 'Hon Keung Tony', ''], dtype=object)]
|
1,244 |
astro-ph/0204063
|
Anatoly A. Suchkov
|
A. A. Suchkov, A. B. Schultz, and C. M. Lisse
|
Candidate Pre-Mainsequence F Stars with Circumstellar Dust Identified
Using Combined 2MASS and uvby Data
|
8 pages, 4 figures, 1 table. To appear in ApJ, part 2, v. 570, 2002
May 1
| null |
10.1086/340856
| null |
astro-ph
| null |
We propose a method that uses near-infrared plus uvby photometry to identify
potentially extensive circumstellar dusty environment about F and A stars. The
method has been applied to a sample of ~900 metal rich reddened F stars with
2MASS and uvby data, suggesting the presence of circumstellar dust emitting in
the near infrared for ~70 stars. The log T_e - M_V diagram suggests that most,
if not all, of them are likely pre-mainsequence (PMS). They seem to be
consistent with being a continuation of the class of Herbig Ae/Be PMS stars
into the spectral type F. Their number drops sharply downward of log T_e ~ 3.84
(spectral types later than ~F5), which may provide new clues to the PMS
evolution of stars with 1 to 2 solar mass. We present a list of 21 most
conspicuous candidate stars with circumstellar dust. About half of them are
associated with the extended star-forming region around rho Oph. The brightest
of these 21 stars, with V < 7.5, turn out to be IRAS sources, suggesting the
presence of heated dust emitting in the far infrared. Also in this list, HD
81270 is reported as a very unusual star moving away from the Galactic plane at
a projected speed of 70 km/sec.
|
[{'version': 'v1', 'created': 'Wed, 3 Apr 2002 19:13:02 GMT'}]
|
2009-11-07
|
[array(['Suchkov', 'A. A.', ''], dtype=object)
array(['Schultz', 'A. B.', ''], dtype=object)
array(['Lisse', 'C. M.', ''], dtype=object)]
|
1,245 |
1104.3311
|
Natasha Sharma
|
N. Sharma (for the ALICE Collaboration)
|
Production of antinuclei in pp collisions at \sqrt{s} = 7 TeV with ALICE
at the LHC
|
4 pages, 7 figures, Proceeding for ICPAQGP Conference 2010, Goa,
India
| null | null | null |
nucl-ex hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
First results of ALICE on the production of nuclei and antinuclei in pp
collisions at \surd s = 7 TeV are presented. These particles are identified
using the energy loss (dE/dx) measurements in the Time Projection Chamber. The
Inner Tracking System allows a precise determination of the event vertex, by
which primary and secondary particles are well separated. The high statistics
of over 350 M events give a significant number of light nuclei and antinuclei
such as (anti)deuterons, (anti)tritons, (anti)Helium3 and possibly
(anti)hypertritons. The study of nuclei and antinuclei will help to understand
their production mechanisms. Antinuclei production as a function of particle
multiplicity in an event is discussed in this respect. Various particle ratios
obtained from these collisions using predictions from a statistical model are
also presented.
|
[{'version': 'v1', 'created': 'Sun, 17 Apr 2011 12:28:53 GMT'}
{'version': 'v2', 'created': 'Tue, 19 Apr 2011 08:10:52 GMT'}]
|
2019-08-14
|
[array(['Sharma', 'N.', '', 'for the ALICE Collaboration'], dtype=object)]
|
1,246 |
1611.07301
|
Charlie Duclut
|
Charlie Duclut and Bertrand Delamotte
|
Frequency regulators for the nonperturbative renormalization group: A
general study and the model A as a benchmark
|
11 pages, 6 figures
|
Phys. Rev. E 95, 012107 (2017)
|
10.1103/PhysRevE.95.012107
| null |
cond-mat.stat-mech hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We derive the necessary conditions for implementing a regulator that depends
on both momentum and frequency in the nonperturbative renormalization group
flow equations of out-of-equilibrium statistical systems. We consider model A
as a benchmark and compute its dynamical critical exponent $z$. This allows us
to show that frequency regulators compatible with causality and the
fluctuation-dissipation theorem can be devised. We show that when the Principle
of Minimal Sensitivity (PMS) is employed to optimize the critical exponents
$\eta$, $\nu$ and $z$, the use of frequency regulators becomes necessary to
make the PMS a self-consistent criterion.
|
[{'version': 'v1', 'created': 'Tue, 22 Nov 2016 13:59:13 GMT'}
{'version': 'v2', 'created': 'Wed, 23 Nov 2016 14:12:21 GMT'}
{'version': 'v3', 'created': 'Thu, 5 Jan 2017 19:16:44 GMT'}]
|
2017-01-09
|
[array(['Duclut', 'Charlie', ''], dtype=object)
array(['Delamotte', 'Bertrand', ''], dtype=object)]
|
1,247 |
1605.08200
|
Christoph Heinisch
|
Christoph Heinisch and Martin Holthaus
|
Entropy production within a pulsed Bose-Einstein condensate
|
7 pages, 8 figures
|
Z. Naturforsch. A 71, 875 (2016)
|
10.1515/zna-2016-0073
| null |
cond-mat.quant-gas
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We suggest to subject anharmonically trapped Bose-Einstein condensates to
sinusoidal forcing with a smooth, slowly changing envelope, and to measure the
coherence of the system after such pulses. In a series of measurements with
successively increased maximum forcing strength one then expects an adiabatic
return of the condensate to its initial state as long as the pulses remain
sufficiently weak. In contrast, once the maximum driving amplitude exceeds a
certain critical value there should be a drastic loss of coherence, reflecting
significant heating induced by the pulse. This predicted experimental signature
is traced to the loss of an effective adiabatic invariant, and to the ensuing
breakdown of adiabatic motion of the system's Floquet state when the many-body
dynamics become chaotic. Our scenario is illustrated with the help of a
two-site model of a forced bosonic Josephson junction, but should also hold for
other, experimentally accessible configurations.
|
[{'version': 'v1', 'created': 'Thu, 26 May 2016 09:11:16 GMT'}]
|
2017-07-11
|
[array(['Heinisch', 'Christoph', ''], dtype=object)
array(['Holthaus', 'Martin', ''], dtype=object)]
|
1,248 |
2010.03194
|
Mingyi Hong
|
Junyu Zhang and Mingyi Hong
|
First-Order Algorithms Without Lipschitz Gradient: A Sequential Local
Optimization Approach
| null | null | null | null |
math.OC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
First-order algorithms have been popular for solving convex and non-convex
optimization problems. A key assumption for the majority of these algorithms is
that the gradient of the objective function is globally Lipschitz continuous,
but many contemporary problems such as tensor decomposition fail to satisfy
such an assumption. This paper develops a sequential local optimization (SLO)
framework of first-order algorithms that can effectively optimize problems
without Lipschitz gradient. Operating on the assumption that the gradients are
{\it locally} Lipschitz continuous over any compact set, the proposed framework
carefully restricts the distance between two successive iterates. We show that
the proposed framework can easily adapt to existing first-order methods such as
gradient descent (GD), normalized gradient descent (NGD), accelerated gradient
descent (AGD), as well as GD with Armijo line search. Remarkably, the latter
algorithm is totally parameter-free and do not even require the knowledge of
local Lipschitz constants.
We show that for the proposed algorithms to achieve gradient error bound of
$\|\nabla f(x)\|^2\le \epsilon$, it requires at most
$\mathcal{O}(\frac{1}{\epsilon}\times \mathcal{L}(Y))$ total access to the
gradient oracle, where $\mathcal{L}(Y)$ characterizes how the local Lipschitz
constants grow with the size of a given set $Y$. Moreover, we show that the
variant of AGD improves the dependency on both $\epsilon$ and the growth
function $\mathcal{L}(Y)$. The proposed algorithms complement the existing
Bregman Proximal Gradient (BPG) algorithm, because they do not require the
global information about problem structure to construct and solve Bregman
proximal mappings.
|
[{'version': 'v1', 'created': 'Wed, 7 Oct 2020 06:03:31 GMT'}]
|
2020-10-08
|
[array(['Zhang', 'Junyu', ''], dtype=object)
array(['Hong', 'Mingyi', ''], dtype=object)]
|
1,249 |
2002.08468
|
Jae-Geun Yoon
|
Jae-Geun Yoon and Minji Lee
|
Effective Correlates of Motor Imagery Performance based on Default Mode
Network in Resting-State
| null | null | null | null |
q-bio.NC cs.NE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Motor imagery based brain-computer interfaces (MI-BCIs) allow the control of
devices and communication by imagining different muscle movements. However,
most studies have reported a problem of "BCI-illiteracy" that does not have
enough performance to use MI-BCI. Therefore, understanding subjects with poor
performance and finding the cause of performance variation is still an
important challenge. In this study, we proposed predictors of MI performance
using effective connectivity in resting-state EEG. As a result, the high and
low MI performance groups had a significant difference as 23% MI performance
difference. We also found that connection from right lateral parietal to left
lateral parietal in resting-state EEG was correlated significantly with MI
performance (r = -0.37). These findings could help to understand BCI-illiteracy
and to consider alternatives that are appropriate for the subject.
|
[{'version': 'v1', 'created': 'Tue, 11 Feb 2020 04:22:05 GMT'}]
|
2020-02-21
|
[array(['Yoon', 'Jae-Geun', ''], dtype=object)
array(['Lee', 'Minji', ''], dtype=object)]
|
1,250 |
2208.10055
|
Masaharu Ishikawa
|
Masaharu Ishikawa, Tat Thang Nguyen
|
Relative homotopy groups and Serre fibrations for polynomial maps
|
18 pages, 3 figures
| null | null | null |
math.GT math.AT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $f$ be a polynomial map from $\mathbb R^m$ to $\mathbb R^n$ with $m>n$.
Fix a point $t_0\in \mathbb R^n$ and choose an $n$-dimensional ball $D_{t_0}$
centered at $t_0$ and small enough with respect to the canonical stratification
of $\mathbb R^n$ given according to the bifurcation set of $f$. We show that
the restriction of $f$ to $f^{-1}(D_{t_0})$ is a Serre fibration if and only if
certain relative homotopy groups defined for arcs on the closures of strata on
$D_{t_0}$ with endpoint $t_0$ are all trivial. We present an example of
atypical fiber of a fibration over an arc that cannot be detected by the
integral homology groups of the atypical fiber and its nearby fiber, but is
detected by our relative homotopy groups.
|
[{'version': 'v1', 'created': 'Mon, 22 Aug 2022 04:42:23 GMT'}]
|
2022-08-23
|
[array(['Ishikawa', 'Masaharu', ''], dtype=object)
array(['Nguyen', 'Tat Thang', ''], dtype=object)]
|
1,251 |
0909.4566
|
Shengfeng Cheng
|
Shengfeng Cheng, Binquan Luan, Mark O. Robbins
|
Contact and Friction of Nano-Asperities: Effects of Adsorbed Monolayers
|
RevTex4, 17 pages, 13 figures
|
Phys. Rev. E 81, 016102 (2010)
|
10.1103/PhysRevE.81.016102
| null |
cond-mat.mtrl-sci cond-mat.soft
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Molecular dynamics simulations are used to study contact between a rigid,
nonadhesive, spherical tip with radius of order 30nm and a flat elastic
substrate covered with a fluid monolayer of adsorbed chain molecules. Previous
studies of bare surfaces showed that the atomic scale deviations from a sphere
that are present on any tip constructed from discrete atoms lead to significant
deviations from continuum theory and dramatic variability in friction forces.
Introducing an adsorbed monolayer leads to larger deviations from continuum
theory, but decreases the variations between tips with different atomic
structure. Although the film is fluid, it remains in the contact and behaves
qualitatively like a thin elastic coating except for certain tips at high
loads. Measures of the contact area based on the moments or outer limits of the
pressure distribution and on counting contacting atoms are compared. The number
of tip atoms making contact in a time interval grows as a power of the interval
when the film is present and logarithmically with the interval for bare
surfaces. Friction is measured by displacing the tip at a constant velocity or
pulling the tip with a spring. Both static and kinetic friction rise linearly
with load at small loads. Transitions in the state of the film lead to
nonlinear behavior at large loads. The friction is less clearly correlated with
contact area than load.
|
[{'version': 'v1', 'created': 'Thu, 24 Sep 2009 21:58:22 GMT'}]
|
2012-01-11
|
[array(['Cheng', 'Shengfeng', ''], dtype=object)
array(['Luan', 'Binquan', ''], dtype=object)
array(['Robbins', 'Mark O.', ''], dtype=object)]
|
1,252 |
1311.3636
|
Bj\"orn Schenke
|
Bjoern Schenke, Prithwish Tribedy, Raju Venugopalan
|
Multiplicity distributions in p+p, p+A and A+A collisions from
Yang-Mills dynamics
|
15 pages, 17 figures
|
Phys. Rev. C 89, 024901 (2014)
|
10.1103/PhysRevC.89.024901
| null |
hep-ph nucl-ex nucl-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We compute transverse momentum and momentum integrated multiplicity
distributions consistently in the IP-Glasma model for proton-proton and
proton-lead collisions at the LHC, in deuteron-gold collisions at RHIC, and in
heavy ion collisions at both RHIC and LHC energies. Several sources of
sub-nucleon scale contributions to the multiplicity distributions are
identified. Our results, which are constrained by inclusive and diffractive
deeply inelastic scattering data from HERA, are compared to measured
distributions for a range of collision energies. These results are an essential
first step in quantifying the relative role of initial and final state effects
on multiparticle correlations in light and heavy ion collisions.
|
[{'version': 'v1', 'created': 'Thu, 14 Nov 2013 19:48:58 GMT'}]
|
2015-02-06
|
[array(['Schenke', 'Bjoern', ''], dtype=object)
array(['Tribedy', 'Prithwish', ''], dtype=object)
array(['Venugopalan', 'Raju', ''], dtype=object)]
|
1,253 |
0704.4000
|
Erhan Iltan
|
E. O. Iltan
|
Radiative lepton flavor violating decays in the Randall Sundrum
background with localized leptons
|
23 pages, 10 figures, 2 tables
|
Int.J.Mod.Phys.A23:1055-1073,2008
|
10.1142/S0217751X08039748
| null |
hep-ph
| null |
We study the radiative lepton flavor violating l_i -> l_j\gamma decays in the
two Higgs doublet model, respecting the Randall Sundrum scenario and estimate
the contributions of the KK modes of left (right) handed charged lepton
doublets (singlets) on the branching ratios. We observe that the branching
ratios are sensitive to the contributions of the charged lepton KK modes.
|
[{'version': 'v1', 'created': 'Mon, 30 Apr 2007 19:32:07 GMT'}
{'version': 'v2', 'created': 'Mon, 25 Feb 2008 12:24:06 GMT'}]
|
2008-11-26
|
[array(['Iltan', 'E. O.', ''], dtype=object)]
|
1,254 |
1804.08163
|
Aditya Nanda
|
Aditya Nanda, Puneet singla and M. Amin Karami
|
Spontaneous spinning of a rattleback placed on vibrating platform
| null |
Energy harvesting using rattleback: Theoretical analysis and
simulations of spin resonance, Aditya Nanda, Puneet Singla and M. Amin
Karami, Journal of Sound and Vibration, 369, pages - 195--208 2016 {Elsevier}
|
10.1016/j.jsv.2015.12.032
| null |
physics.class-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The spontaneous spinning of a rattleback placed on a vibrating platform is
investigated. The rattleback is a toy with some curious properties. When placed
on a surface with reasonable friction, the rattleback has a preferred direction
of spin. If rotated anti to it, longitudinal vibrations are set up and spin
direction is reversed.
In this paper, the dynamics of a rattleback placed on a sinusoidally
vibrating platform are simulated. We can expect base vibrations to excite the
pitch motion of the rattleback, which, because of the coupling between pitch
and spin motion, should cause the rattleback to spin. Results are presented
which show that this indeed is the case- the rattleback has a mono-peak spin
resonance with respect to base vibrations. The rattleback, thus, transduces
translating vibrations into continuous rotary motion and, therefore, is ideal
for applications in Energy harvesting and Vibration sensing.
The dynamic response of the rattleback was found to be composed of two
principal frequencies that appeared in the pitch and rolling motions. One of
the frequencies was found to have a large coupling with the spin of the
rattleback. Spin resonance was found to occur when the base oscillatory
frequency was twice the value of the coupled frequency. A linearized model is
developed which can predict the values of the two frequencies accurately and
analytical expressions for the same in terms of the parameters of the
rattleback have been derived. The analysis, thus, forms an effective and easy
method for obtaining the spin resonant frequency of a given rattleback.
Novel ideas for applications utilizing the phenomenon of spin resonance, for
example, an energy harvester composed of a magnetized rattleback surrounded by
ferromagnetic walls and a small scale vibration sensor comprising an array of
several magnetized rattlebacks, are included.
|
[{'version': 'v1', 'created': 'Sun, 22 Apr 2018 20:34:10 GMT'}]
|
2018-04-24
|
[array(['Nanda', 'Aditya', ''], dtype=object)
array(['singla', 'Puneet', ''], dtype=object)
array(['Karami', 'M. Amin', ''], dtype=object)]
|
1,255 |
2303.10302
|
Manav Vora
|
Manav Vora, Pranay Thangeda, Michael N. Grussing, Melkior Ornik
|
Welfare Maximization Algorithm for Solving Budget-Constrained
Multi-Component POMDPs
| null | null | null | null |
math.OC cs.AI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Partially Observable Markov Decision Processes (POMDPs) provide an efficient
way to model real-world sequential decision making processes. Motivated by the
problem of maintenance and inspection of a group of infrastructure components
with independent dynamics, this paper presents an algorithm to find the optimal
policy for a multi-component budget-constrained POMDP. We first introduce a
budgeted-POMDP model (b-POMDP) which enables us to find the optimal policy for
a POMDP while adhering to budget constraints. Next, we prove that the value
function or maximal collected reward for a b-POMDP is a concave function of the
budget for the finite horizon case. Our second contribution is an algorithm to
calculate the optimal policy for a multi-component budget-constrained POMDP by
finding the optimal budget split among the individual component POMDPs. The
optimal budget split is posed as a welfare maximization problem and the
solution is computed by exploiting the concave nature of the value function. We
illustrate the effectiveness of the proposed algorithm by proposing a
maintenance and inspection policy for a group of real-world infrastructure
components with different deterioration dynamics, inspection and maintenance
costs. We show that the proposed algorithm vastly outperforms the policy
currently used in practice.
|
[{'version': 'v1', 'created': 'Sat, 18 Mar 2023 01:43:47 GMT'}
{'version': 'v2', 'created': 'Sun, 14 May 2023 14:21:51 GMT'}]
|
2023-05-16
|
[array(['Vora', 'Manav', ''], dtype=object)
array(['Thangeda', 'Pranay', ''], dtype=object)
array(['Grussing', 'Michael N.', ''], dtype=object)
array(['Ornik', 'Melkior', ''], dtype=object)]
|
1,256 |
patt-sol/9801004
|
Hermann Riecke
|
Jens Eggers (Universit\"at Gesamthochschule Essen, Germany) and
Hermann Riecke (Northwestern University, Evanston, USA)
|
A Continuum Description of Vibrated Sand
|
paper has been considerably extended (11 instead of 6 pages; 6
instead of 4 figures) much better agreement with experiment. obtain now
oscillons in 1 dimension
| null |
10.1103/PhysRevE.59.4476
| null |
patt-sol nlin.PS
| null |
The motion of a thin layer of granular material on a plate undergoing
sinusoidal vibrations is considered. We develop equations of motion for the
local thickness and the horizontal velocity of the layer. The driving comes
from the violent impact of the grains on the plate. A linear stability theory
reveals that the waves are excited non-resonantly, in contrast to the usual
Faraday waves in liquids. Together with the experimentally observed continuum
scaling, the model suggests a close connection between the neutral curve and
the dispersion relation of the waves, which agrees quite well with experiments.
For strong hysteresis we find localized oscillon solutions.
|
[{'version': 'v1', 'created': 'Wed, 28 Jan 1998 02:40:42 GMT'}
{'version': 'v2', 'created': 'Tue, 16 Jun 1998 16:17:42 GMT'}
{'version': 'v3', 'created': 'Tue, 8 Dec 1998 00:47:39 GMT'}]
|
2009-10-31
|
[array(['Eggers', 'Jens', '',
'Universität Gesamthochschule Essen, Germany'], dtype=object)
array(['Riecke', 'Hermann', '', 'Northwestern University, Evanston, USA'],
dtype=object) ]
|
1,257 |
2212.06977
|
David Freeborn
|
David Freeborn, Marian Gilton and Chris Mitsch
|
How Haag-tied is QFT, really?
|
40 pages, 2 figures
| null | null | null |
physics.hist-ph hep-th
|
http://creativecommons.org/licenses/by/4.0/
|
Haag's theorem cries out for explanation and critical assessment: it sounds
the alarm that something is (perhaps) not right in one of the standard way of
constructing interacting fields to be used in generating predictions for
scattering experiments. Viewpoints as to the precise nature of the problem, the
appropriate solution, and subsequently-called-for developments in areas of
physics, mathematics, and philosophy differ widely. In this paper, we develop
and deploy a conceptual framework for critically assessing these disparate
responses to Haag's theorem. Doing so reveals the driving force of more general
questions as to the nature and purpose of foundational work in physics.
|
[{'version': 'v1', 'created': 'Wed, 14 Dec 2022 01:55:40 GMT'}]
|
2022-12-15
|
[array(['Freeborn', 'David', ''], dtype=object)
array(['Gilton', 'Marian', ''], dtype=object)
array(['Mitsch', 'Chris', ''], dtype=object)]
|
1,258 |
1811.11217
|
Shehab Alzobaidi
|
Andrew J. Worthen, Shehab Alzobaidi, Vu Tran, Muhammad Iqbal,
Jefferson S. Liu, Kevin A. Cornell, Ijung Kim, David A. DiCarlo, Steven L.
Bryant, Chun Huh, Thomas M. Truskett, and Keith P. Johnston
|
Design of nanoparticles for generation and stabilization of CO2-in-brine
foams with or without added surfactants
| null | null | null | null |
cond-mat.soft
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Whereas many studies have examined stabilization of emulsions and foams in
low salinity aqueous phases with nanoparticles (NPs) with and without added
surfactants, interest has grown recently in much higher salinities relevant to
subsurface oil and gas applications. It is shown for the first time that NPs
grafted with well-defined low molecular weight ligands colloidally stable in
concentrated brine (in particular, API brine, 8% NaCl + 2% CaCl2) and are
interfacially active at the brine-air interface. These properties were achieved
for three types of ligands: a nonionic diol called GLYMO and two short
poly(ethylene glycol) (PEG) oligomers with 6-12 EO repeat units. Carbon
dioxide-in-water (C/W) foams could be formed only with modified NPs with higher
surface pressures at the A/W interface. Furthermore, these ligands were
sufficiently CO2-philic that the hydrophilic/CO2-philic balance of silica NPs
was low enough for stabilization of CO2-in-water (C/W) foam with API brine.
Additionally, NPs with these three ligands formed stable dispersions with
various free molecular surfactants in DI water and even API brine (8% NaCl + 2%
CaCl2) at room temperature. A wide variety of mixtures of NPs plus anionic,
nonionic, or cationic mixtures that formed stable dispersions were also found
to stabilize C/W foams in porous media at high salinity. These results provide
a basis for future studies of the mechanism of foam stabilization with NPs and
NP/surfactant mixtures at high salinity.
|
[{'version': 'v1', 'created': 'Tue, 27 Nov 2018 19:43:17 GMT'}
{'version': 'v2', 'created': 'Thu, 30 May 2019 14:15:16 GMT'}]
|
2019-05-31
|
[array(['Worthen', 'Andrew J.', ''], dtype=object)
array(['Alzobaidi', 'Shehab', ''], dtype=object)
array(['Tran', 'Vu', ''], dtype=object)
array(['Iqbal', 'Muhammad', ''], dtype=object)
array(['Liu', 'Jefferson S.', ''], dtype=object)
array(['Cornell', 'Kevin A.', ''], dtype=object)
array(['Kim', 'Ijung', ''], dtype=object)
array(['DiCarlo', 'David A.', ''], dtype=object)
array(['Bryant', 'Steven L.', ''], dtype=object)
array(['Huh', 'Chun', ''], dtype=object)
array(['Truskett', 'Thomas M.', ''], dtype=object)
array(['Johnston', 'Keith P.', ''], dtype=object)]
|
1,259 |
1707.00410
|
Yuta Tanaka
|
Yuta Tanaka, Shinji Tsuneyuki
|
Possible electronic entropy-driven mechanism for non-thermal ablation of
metals
|
5 pages, 4 figures
| null |
10.7567/APEX.11.046701
| null |
cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The physical mechanism for metal ablation induced by femtosecond laser
irradiation was investigated. Results of calculations based on
finite-temperature density functional theory (FTDFT) indicate that condensed
copper becomes unstable at high electron temperatures due to an increase of
electronic entropy at large volume, where the local density of states near the
Fermi energy increases. Based on these results, an electronic entropy-driven
(EED) model is proposed to explain metal ablation with a femtosecond laser. In
addition, a mathematical model is developed for simulation of the laser
ablation, where the effect of the electronic entropy is included. This
mathematical model can quantitatively describe the experimental data in the
low-laser-fuence region, where the electronic entropy effect is determined to
be especially important.
|
[{'version': 'v1', 'created': 'Mon, 3 Jul 2017 06:06:29 GMT'}]
|
2018-04-04
|
[array(['Tanaka', 'Yuta', ''], dtype=object)
array(['Tsuneyuki', 'Shinji', ''], dtype=object)]
|
1,260 |
1302.1855
|
Tom\'as Ramos
|
Tom\'as Ramos, Vivishek Sudhir, Kai Stannigel, Peter Zoller and Tobias
J. Kippenberg
|
Nonlinear Quantum Optomechanics via Individual Intrinsic Two-Level
Defects
|
Comments welcome (5+7 pages), Final Published Version
|
Phys. Rev. Lett. 110, 193602 (2013)
|
10.1103/PhysRevLett.110.193602
| null |
quant-ph cond-mat.mes-hall physics.optics
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We propose to use the intrinsic two-level system (TLS) defect states found
naturally in integrated optomechanical devices for exploring cavity QED-like
phenomena with localized phonons. The Jaynes-Cummings-type interaction between
TLS and mechanics can reach the strong coupling regime for existing
nano-optomechanical systems, observable via clear signatures in the
optomechanical output spectrum. These signatures persist even at finite
temperature, and we derive an explicit expression for the temperature at which
they vanish. Further, the ability to drive the defect with a microwave field
allows for realization of phonon blockade, and the available controls are
sufficient to deterministically prepare non-classical states of the mechanical
resonator.
|
[{'version': 'v1', 'created': 'Thu, 7 Feb 2013 20:41:06 GMT'}
{'version': 'v2', 'created': 'Tue, 14 May 2013 00:16:22 GMT'}]
|
2013-05-17
|
[array(['Ramos', 'Tomás', ''], dtype=object)
array(['Sudhir', 'Vivishek', ''], dtype=object)
array(['Stannigel', 'Kai', ''], dtype=object)
array(['Zoller', 'Peter', ''], dtype=object)
array(['Kippenberg', 'Tobias J.', ''], dtype=object)]
|
1,261 |
1809.06612
|
Mina Ketan Parida
|
M. K. Parida (SOADU), Rajesh Satpathy (SOADU)
|
High Scale Type-II Seesaw, Dominant Double Beta Decay within
Cosmological Bound and Verifiable LFV Decays in SU(5)
|
37 pages, LaTeX, 9 figures; accepted version by Advances in High
Energy Physics
|
Adv. High Energy Phys. 2019 (2019) 3572862
|
10.1155/2019/3572862
| null |
hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Very recently a novel implementation of type-II seesaw mechanism for neutrino
mass has been proposed in SU(5) grand unified theory with a number of desirable
new physical phenomena beyond the standard model.Introducing heavy right-haded
neutrinos and extra fermion singlets, in this work we show how the type-I seeaw
cancellation mechanism works in this SU(5) framework. Besides predicting
verifiable LFV decays, we further show that the model predicts dominant double
beta decay with normal hierarchy or inverted hierarchy of active light neutrino
masses in concordance with cosmological bound. In addition, a novel mechanism
for heavy right-handed neutrino mass generation independent of type-II seesaw
predicted mass hierarchy, is suggested in this work.
|
[{'version': 'v1', 'created': 'Tue, 18 Sep 2018 09:32:50 GMT'}
{'version': 'v2', 'created': 'Wed, 19 Dec 2018 12:13:52 GMT'}]
|
2019-02-05
|
[array(['Parida', 'M. K.', '', 'SOADU'], dtype=object)
array(['Satpathy', 'Rajesh', '', 'SOADU'], dtype=object)]
|
1,262 |
2110.03901
|
Yangjie Zhou
|
Yangjie Zhou, Mengtian Yang, Cong Guo, Jingwen Leng, Yun Liang, Quan
Chen, Minyi Guo, Yuhao Zhu
|
Characterizing and Demystifying the Implicit Convolution Algorithm on
Commercial Matrix-Multiplication Accelerators
| null | null | null | null |
cs.DC
|
http://creativecommons.org/licenses/by/4.0/
|
Many of today's deep neural network accelerators, e.g., Google's TPU and
NVIDIA's tensor core, are built around accelerating the general matrix
multiplication (i.e., GEMM). However, supporting convolution on GEMM-based
accelerators is not trivial. The naive method explicitly lowers the convolution
to GEMM, commonly known as im2col, which introduces significant performance and
memory overhead. Existing implicit im2col algorithms require unscalable
hardware and are inefficient in supporting important convolution variants such
as strided convolution. In this paper, we propose a memory-efficient and
hardware-friendly implicit im2col algorithm used by Google's TPU, which
dynamically converts a convolution into a GEMM with practically zero
performance and memory overhead, fully unleashing the power of GEMM engines.
Through comprehensive experimental results, we quantitatively argue that this
algorithm has been adopted in commercial closed-source platforms, and we are
the first to describe its high-level idea and implementation details. Finally,
we show that our algorithm can also be generally applied to Nvidia's Tensor
Cores (TC), matching and out-performing the measured performance on TCs.
|
[{'version': 'v1', 'created': 'Fri, 8 Oct 2021 05:41:45 GMT'}]
|
2021-10-11
|
[array(['Zhou', 'Yangjie', ''], dtype=object)
array(['Yang', 'Mengtian', ''], dtype=object)
array(['Guo', 'Cong', ''], dtype=object)
array(['Leng', 'Jingwen', ''], dtype=object)
array(['Liang', 'Yun', ''], dtype=object)
array(['Chen', 'Quan', ''], dtype=object)
array(['Guo', 'Minyi', ''], dtype=object)
array(['Zhu', 'Yuhao', ''], dtype=object)]
|
1,263 |
2206.11401
|
Zhiyuan Chu
|
Z. Chu, K. K. Wong, K. F. Tong
|
On Surface Wave Propagation Characteristics of Porosity-Based
Reconfigurable Surface
|
Submitted to 2022 Asia-Pacific Microwave Conference APMC 2022
Nov.29-Dec.2,2022/Yokohama
| null | null | null |
eess.SP
|
http://creativecommons.org/licenses/by-sa/4.0/
|
Reconfigurable surfaces facilitating energy-efficient, intelligent surface
wave propagation have recently emerged as a technology that finds applications
in many-core systems and 6G wireless communications. In this paper, we consider
the porosity-based reconfigurable surface where there are cavities that can be
filled on-demand with fluid metal such as Galinstan, in order to create
adaptable channels for efficient wave propagation. We aim to investigate the
propagation phenomenon of signal fluctuation resulting from the diffraction of
discrete porosity and study how different porosity patterns affect this
phenomenon. Our results cover the frequency range between 21.7GHz and 31.6GHz
when a WR-34 waveguide is used as the transducer.
|
[{'version': 'v1', 'created': 'Wed, 22 Jun 2022 22:04:41 GMT'}]
|
2022-06-24
|
[array(['Chu', 'Z.', ''], dtype=object)
array(['Wong', 'K. K.', ''], dtype=object)
array(['Tong', 'K. F.', ''], dtype=object)]
|
1,264 |
1802.04311
|
Kazuaki Takasan
|
Kazuaki Takasan, Masahiro Sato
|
Control of Magnetic and Topological Orders with a DC Electric Field
|
7+6 pages, 4+1 figures
|
Phys. Rev. B 100, 060408 (2019)
|
10.1103/PhysRevB.100.060408
| null |
cond-mat.str-el cond-mat.mes-hall cond-mat.quant-gas
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We theoretically propose a new route to control magnetic and topological
orders in a broad class of insulating magnets with a DC electric field. We show
from the strong-coupling expansion that magnetic exchange interactions along
the electric-field direction are generally enhanced in Mott insulators. We
demonstrate that several magnetic or topological ordered phases such as quantum
spin liquids and Haldane-gap states can be derived if we apply a strong enough
DC electric field to typical frustrated or low-dimensional magnets. Our
proposal is effective especially for weak Mott insulators and magnets in the
vicinity of quantum critical points, and would also be applicable for magnets
under low-frequency AC electric fields such as terahertz laser pulses. A
similar strategy of controlling exchange interactions can also be utilized in
cold atomic systems.
|
[{'version': 'v1', 'created': 'Mon, 12 Feb 2018 19:16:04 GMT'}]
|
2019-08-28
|
[array(['Takasan', 'Kazuaki', ''], dtype=object)
array(['Sato', 'Masahiro', ''], dtype=object)]
|
1,265 |
1404.6738
|
Utso Bhattacharya
|
Utso Bhattacharya, Sayak Dasgupta and Amit Dutta
|
Exploring chaos in Dicke Model using ground state fidelity and Loschmidt
echo
|
7 pages, 8 figures
|
Phys. Rev. E, 90, 022920, 2014
|
10.1103/PhysRevE.90.022920
| null |
cond-mat.stat-mech quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the quantum critical behaviour of the Dicke Hamiltonian, with finite
number of atoms and explore the signature of quantum chaos using measures like
the ground state fidelity and the Loschmidt echo. We show that both these
quantities clearly point to the chaotic nature of the system in the
super-radiant phase.
|
[{'version': 'v1', 'created': 'Sun, 27 Apr 2014 11:44:00 GMT'}]
|
2014-12-22
|
[array(['Bhattacharya', 'Utso', ''], dtype=object)
array(['Dasgupta', 'Sayak', ''], dtype=object)
array(['Dutta', 'Amit', ''], dtype=object)]
|
1,266 |
2111.12921
|
Junhui Cai
|
Junhui Cai, Dan Yang, Wu Zhu, Haipeng Shen, Linda Zhao
|
Network regression and supervised centrality estimation
| null | null | null | null |
econ.EM cs.SI stat.ME
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The centrality in a network is a popular metric for agents' network positions
and is often used in regression models to model the network effect on an
outcome variable of interest. In empirical studies, researchers often adopt a
two-stage procedure to first estimate the centrality and then infer the network
effect using the estimated centrality. Despite its prevalent adoption, this
two-stage procedure lacks theoretical backing and can fail in both estimation
and inference. We, therefore, propose a unified framework, under which we prove
the shortcomings of the two-stage in centrality estimation and the undesirable
consequences in the regression. We then propose a novel supervised network
centrality estimation (SuperCENT) methodology that simultaneously yields
superior estimations of the centrality and the network effect and provides
valid and narrower confidence intervals than those from the two-stage. We
showcase the superiority of SuperCENT in predicting the currency risk premium
based on the global trade network.
|
[{'version': 'v1', 'created': 'Thu, 25 Nov 2021 05:48:55 GMT'}]
|
2021-11-29
|
[array(['Cai', 'Junhui', ''], dtype=object)
array(['Yang', 'Dan', ''], dtype=object)
array(['Zhu', 'Wu', ''], dtype=object)
array(['Shen', 'Haipeng', ''], dtype=object)
array(['Zhao', 'Linda', ''], dtype=object)]
|
1,267 |
2302.09269
|
Nozomu Tominaga
|
Takayuki Ohgami, Josefa Becerra Gonzalez, Nozomu Tominaga, Tomoki
Morokuma, Yousuke Utsumi, Yuu Niino, Masaomi Tanaka, Smaranika Banerjee,
Frederick Poidevin, Jose Antonio Acosta-Pulido, Ismael Perez-Fournon, Teo
Munoz-Darias, Hiroshi Akitaya, Kenshi Yanagisawa, Mahito Sasada, Michitoshi
Yoshida, Mirko Simunovic, Ryou Ohsawa, Ichi Tanaka, Tsuyoshi Terai, Yuhei
Takagi, and The J-GEM collaboration
|
Follow-up survey for the binary black hole merger GW200224_222234 using
Subaru/HSC and GTC/OSIRIS
|
22 pages, 15 figures. Accepted for publication in the Astrophysical
Journal
| null |
10.3847/1538-4357/acbd42
| null |
astro-ph.HE
|
http://creativecommons.org/licenses/by/4.0/
|
The LIGO/Virgo detected a gravitational wave (GW) event, named
GW200224_222234 (a.k.a. S200224ca) and classified as a binary-black-hole
coalescence, on February 24, 2020. Given its relatively small localization
skymap (71 deg$^2$ for a 90% credible region; revised to 50 deg$^2$ in GWTC-3),
we performed target-of-opportunity observations using the Subaru/Hyper
Suprime-Cam (HSC) in the $r2$- and $z$-bands. Observations were conducted on
February 25 and 28 and March 23, 2020, with the first epoch beginning 12.3 h
after the GW detection. The survey covered the highest probability sky area of
56.6 deg$^2$, corresponding to a 91% probability. This was the first deep
follow-up ($m_{r}\gtrsim24, m_{z}\gtrsim23$) for a binary-black-hole merger
covering $>$90% of the localization. By performing image subtraction and
candidate screening including light curve fitting with transient templates and
examples, we found 22 off-nucleus transients that were not ruled out as the
counterparts of GW200224_222234 with only our Subaru/HSC data. We also
performed GTC/OSIRIS spectroscopy of the probable host galaxies for five
candidates; two are likely to be located within the 3D skymap, whereas the
others are not. In conclusion, 19 transients remain as possible optical
counterparts of GW200224_222234; however, we could not identify a unique
promising counterpart. If there are no counterparts in the remaining
candidates, the upper limits of optical luminosity are $\nu L_{\nu} <
5.2^{+2.4}_{-1.9}\times 10^{41}$ erg s$^{-1}$ and $\nu L_{\nu} <
1.8^{+0.8}_{-0.6}\times 10^{42}$ erg s$^{-1}$ in the $r2$- and $z$-bands,
respectively, at $\sim$12 h after GW detection. We also discuss improvements in
the strategies of optical follow-ups for future GW events.
|
[{'version': 'v1', 'created': 'Sat, 18 Feb 2023 09:26:40 GMT'}]
|
2023-04-19
|
[array(['Ohgami', 'Takayuki', ''], dtype=object)
array(['Gonzalez', 'Josefa Becerra', ''], dtype=object)
array(['Tominaga', 'Nozomu', ''], dtype=object)
array(['Morokuma', 'Tomoki', ''], dtype=object)
array(['Utsumi', 'Yousuke', ''], dtype=object)
array(['Niino', 'Yuu', ''], dtype=object)
array(['Tanaka', 'Masaomi', ''], dtype=object)
array(['Banerjee', 'Smaranika', ''], dtype=object)
array(['Poidevin', 'Frederick', ''], dtype=object)
array(['Acosta-Pulido', 'Jose Antonio', ''], dtype=object)
array(['Perez-Fournon', 'Ismael', ''], dtype=object)
array(['Munoz-Darias', 'Teo', ''], dtype=object)
array(['Akitaya', 'Hiroshi', ''], dtype=object)
array(['Yanagisawa', 'Kenshi', ''], dtype=object)
array(['Sasada', 'Mahito', ''], dtype=object)
array(['Yoshida', 'Michitoshi', ''], dtype=object)
array(['Simunovic', 'Mirko', ''], dtype=object)
array(['Ohsawa', 'Ryou', ''], dtype=object)
array(['Tanaka', 'Ichi', ''], dtype=object)
array(['Terai', 'Tsuyoshi', ''], dtype=object)
array(['Takagi', 'Yuhei', ''], dtype=object)
array(['collaboration', 'The J-GEM', ''], dtype=object)]
|
1,268 |
1104.2249
|
Adam West
|
Adam West, Thomas Hayward, Kevin Weatherill, Thomas Schrefl, Dan
Allwood, Ifan Hughes
|
A simple model for calculating magnetic nanowire domain wall fringing
fields
|
16 pages, 10 figures
|
Journal of Physics D: Appl. Phys. 45, 095002 (2012)
|
10.1088/0022-3727/45/9/095002
| null |
cond-mat.mtrl-sci physics.atom-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present a new approach to calculating magnetic fringing fields from
head-to-head type domain walls in planar magnetic nanowires. In contrast to
calculations based on micromagnetically simulated structures the descriptions
of the fields are for the most part analytic and thus significantly less time
and resource intensive. The models presented begin with an intuitive picture of
domain walls, which is built upon in a phenomenological manner. Comparisons
with fields calculated using micromagnetic methods show good quantitative
agreement.
|
[{'version': 'v1', 'created': 'Tue, 12 Apr 2011 15:49:54 GMT'}
{'version': 'v2', 'created': 'Fri, 16 Sep 2011 18:11:40 GMT'}]
|
2012-02-23
|
[array(['West', 'Adam', ''], dtype=object)
array(['Hayward', 'Thomas', ''], dtype=object)
array(['Weatherill', 'Kevin', ''], dtype=object)
array(['Schrefl', 'Thomas', ''], dtype=object)
array(['Allwood', 'Dan', ''], dtype=object)
array(['Hughes', 'Ifan', ''], dtype=object)]
|
1,269 |
1005.3243
|
Jian Zhou
|
Jian Zhou
|
Some integrality properties in local mirror symmetry
|
Case by case check in an earlier version is replaced by a unified
proof
| null | null | null |
math.AG math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We prove some integrality properties of the open-closed mirror maps, inverse
open-closed mirror maps and mirror curves of some local Calabi-Yau geometries.
|
[{'version': 'v1', 'created': 'Tue, 18 May 2010 16:19:20 GMT'}
{'version': 'v2', 'created': 'Mon, 12 Jul 2010 14:38:31 GMT'}
{'version': 'v3', 'created': 'Mon, 16 Aug 2010 09:04:08 GMT'}]
|
2010-08-17
|
[array(['Zhou', 'Jian', ''], dtype=object)]
|
1,270 |
1009.0664
|
Roberto Imbuzeiro Oliveira
|
Roberto Imbuzeiro Oliveira
|
On the coalescence time of reversible random walks
|
29 pages in 11pt font with 3/2 line spacing. v2 has an extra
reference and corrects a minor error in the proof of the last claim. To
appear in Transactions of the AMS
| null | null | null |
math.PR math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Consider a system of coalescing random walks where each individual performs
random walk over a finite graph G, or (more generally) evolves according to
some reversible Markov chain generator Q. Let C be the first time at which all
walkers have coalesced into a single cluster. C is closely related to the
consensus time of the voter model for this G or Q.
We prove that the expected value of C is at most a constant multiple of the
largest hitting time of an element in the state space. This solves a problem
posed by Aldous and Fill and gives sharp bounds in many examples, including all
vertex-transitive graphs. We also obtain results on the expected time until
only k>1 clusters remain. Our proof tools include a new exponential inequality
for the meeting time of a reversible Markov chain and a deterministic
trajectory, which we believe to be of independent interest.
|
[{'version': 'v1', 'created': 'Fri, 3 Sep 2010 13:36:31 GMT'}
{'version': 'v2', 'created': 'Fri, 10 Sep 2010 15:48:45 GMT'}
{'version': 'v3', 'created': 'Thu, 16 Dec 2010 02:45:40 GMT'}]
|
2010-12-17
|
[array(['Oliveira', 'Roberto Imbuzeiro', ''], dtype=object)]
|
1,271 |
2301.08280
|
Yinxiang Wu
|
Yinxiang Wu, Dori E. Rosenberg, Mikael Anne Greenwood-Hickman, Susan
M. McCurry, Cecile Proust-Lima, Jennifer C. Nelson, Paul K. Crane, Andrea Z.
LaCroix, Eric B. Larson, Pamela A. Shaw
|
Analysis of the 24-Hour Activity Cycle: An illustration examining the
association with cognitive function in the Adult Changes in Thought (ACT)
Study
|
51 pages, 11 tables, 8 figures
| null | null | null |
stat.AP
|
http://creativecommons.org/licenses/by/4.0/
|
The 24-hour activity cycle (24HAC) is a new paradigm for studying activity
behaviors in relation to health outcomes. This approach captures the
interrelatedness of the daily time spent in physical activity (PA), sedentary
behavior (SB), and sleep. We illustrate and compare the use of three popular
approaches, namely isotemporal substitution model (ISM), compositional data
analysis (CoDA), and latent profile analysis (LPA) for modeling outcome
associations with the 24HAC. We apply these approaches to assess an association
with a cognitive outcome, measured by CASI item response theory (IRT) score, in
a cohort of 1034 older adults (mean [range] age = 77 [65-100]; 55.8% female;
90% White) who were part of the Adult Changes in Thought (ACT) Activity
Monitoring (ACT-AM) sub-study. PA and SB were assessed with thigh-worn activPAL
accelerometers for 7 days. We highlight differences in assumptions between the
three approaches, discuss statistical challenges, and provide guidance on
interpretation and selecting an appropriate approach. ISM is easiest to apply
and interpret; however, the typical ISM model assumes a linear association.
CoDA specifies a non-linear association through isometric logratio
transformations that are more challenging to apply and interpret. LPA can
classify individuals into groups with similar time-use patterns. Inference on
associations of latent profiles with health outcomes need to account for the
uncertainty of the LPA classifications which is often ignored. The selection of
the most appropriate method should be guided by the scientific questions of
interest and the applicability of each model's assumptions. The analytic
results did not suggest that less time spent on SB and more in PA was
associated with better cognitive function. Further research is needed into the
health implications of the distinct 24HAC patterns identified in this cohort.
|
[{'version': 'v1', 'created': 'Thu, 19 Jan 2023 19:44:47 GMT'}]
|
2023-01-23
|
[array(['Wu', 'Yinxiang', ''], dtype=object)
array(['Rosenberg', 'Dori E.', ''], dtype=object)
array(['Greenwood-Hickman', 'Mikael Anne', ''], dtype=object)
array(['McCurry', 'Susan M.', ''], dtype=object)
array(['Proust-Lima', 'Cecile', ''], dtype=object)
array(['Nelson', 'Jennifer C.', ''], dtype=object)
array(['Crane', 'Paul K.', ''], dtype=object)
array(['LaCroix', 'Andrea Z.', ''], dtype=object)
array(['Larson', 'Eric B.', ''], dtype=object)
array(['Shaw', 'Pamela A.', ''], dtype=object)]
|
1,272 |
2209.06681
|
Philipp Schr\"oppel
|
Philipp Schr\"oppel and Jan Bechtold and Artemij Amiranashvili and
Thomas Brox
|
A Benchmark and a Baseline for Robust Multi-view Depth Estimation
|
Accepted at 3DV 2022
| null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Recent deep learning approaches for multi-view depth estimation are employed
either in a depth-from-video or a multi-view stereo setting. Despite different
settings, these approaches are technically similar: they correlate multiple
source views with a keyview to estimate a depth map for the keyview. In this
work, we introduce the Robust Multi-View Depth Benchmark that is built upon a
set of public datasets and allows evaluation in both settings on data from
different domains. We evaluate recent approaches and find imbalanced
performances across domains. Further, we consider a third setting, where camera
poses are available and the objective is to estimate the corresponding depth
maps with their correct scale. We show that recent approaches do not generalize
across datasets in this setting. This is because their cost volume output runs
out of distribution. To resolve this, we present the Robust MVD Baseline model
for multi-view depth estimation, which is built upon existing components but
employs a novel scale augmentation procedure. It can be applied for robust
multi-view depth estimation, independent of the target data. We provide code
for the proposed benchmark and baseline model at
https://github.com/lmb-freiburg/robustmvd.
|
[{'version': 'v1', 'created': 'Tue, 13 Sep 2022 17:44:16 GMT'}]
|
2022-09-15
|
[array(['Schröppel', 'Philipp', ''], dtype=object)
array(['Bechtold', 'Jan', ''], dtype=object)
array(['Amiranashvili', 'Artemij', ''], dtype=object)
array(['Brox', 'Thomas', ''], dtype=object)]
|
1,273 |
cond-mat/0503452
|
Fabrice Gerbier
|
Fabrice Gerbier, Artur Widera, Simon Foelling, Olaf Mandel, Tatjana
Gericke and Immanuel Bloch
|
Phase coherence of an atomic Mott insulator
| null |
Phys. Rev. Lett. 95, 050404 (2005).
|
10.1103/PhysRevLett.95.050404
| null |
cond-mat.other
| null |
We investigate the phase coherence properties of ultracold Bose gases in
optical lattices, with special emphasis on the Mott insulating phase. We show
that phase coherence on short length scales persists even deep in the
insulating phase, preserving a finite visibility of the interference pattern
observed after free expansion. This behavior can be attributed to a coherent
admixture of particle/hole pairs to the perfect Mott state for small but finite
tunneling. In addition, small but reproducible ``kinks'' are seen in the
visibility, in a broad range of atom numbers. We interpret them as signatures
for density redistribution in the shell structure of the trapped Mott
insulator.
|
[{'version': 'v1', 'created': 'Thu, 17 Mar 2005 21:00:02 GMT'}
{'version': 'v2', 'created': 'Thu, 31 Mar 2005 19:46:09 GMT'}]
|
2009-11-11
|
[array(['Gerbier', 'Fabrice', ''], dtype=object)
array(['Widera', 'Artur', ''], dtype=object)
array(['Foelling', 'Simon', ''], dtype=object)
array(['Mandel', 'Olaf', ''], dtype=object)
array(['Gericke', 'Tatjana', ''], dtype=object)
array(['Bloch', 'Immanuel', ''], dtype=object)]
|
1,274 |
quant-ph/0110178
|
Antonio Soares de Castro
|
Antonio S. de Castro
|
Comment on "Fun and frustration with quarkonium in a 1+1 dimension," by
R. S. Bhalerao and B. Ram [Am. J. Phys. 69 (7), 817-818 (2001)]
|
Submitted to American Journal of Physics
|
Am.J.Phys. 70 (2002) 450-451
|
10.1119/1.1445407
| null |
quant-ph
| null |
The Dirac equation in a 1+1 dimension with the Lorentz scalar potential g|x|
is approached. It is claimed that the eigenfunctions are proportional to the
parabolic cylinder functions instead Hermite polynomials. Numerical evaluation
of the quantization condition does not result in frustration.
|
[{'version': 'v1', 'created': 'Wed, 31 Oct 2001 18:36:13 GMT'}]
|
2009-11-07
|
[array(['de Castro', 'Antonio S.', ''], dtype=object)]
|
1,275 |
1607.01398
|
Nithiwadee Thaicharoen
|
N. Thaicharoen, A. Schwarzkopf, and G. Raithel
|
Control of spatial correlations between Rydberg excitations using rotary
echo
| null |
Phys. Rev. Lett. 118, 133401 (2017)
|
10.1103/PhysRevLett.118.133401
| null |
physics.atom-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We manipulate correlations between Rydberg excitations in cold atom samples
using a rotary-echo technique. The correlations are due to interactions between
the Rydberg atoms. In the rotary-echo excitation sequence, the phase of the
excitation pulse is flipped at a selected time during the pulse. We measure the
resultant change in the spatial pair correlation function of the excitations
via direct position-sensitive atom imaging. For zero detuning of the lasers
from the interaction-free Rydberg-excitation resonance, the pair-correlation
value at the most likely nearest-neighbor Rydberg-atom distance is
substantially enhanced when the phase is flipped at the middle of the
excitation pulse. In this case, the rotary echo eliminates most uncorrelated
(un-paired) atoms, leaving an abundance of correlated atom pairs at the end of
the sequence. In off-resonant cases, a complementary behavior is observed. We
further characterize the effect of the rotary-echo excitation sequence on the
excitation-number statistics of the atom sample.
|
[{'version': 'v1', 'created': 'Tue, 5 Jul 2016 20:01:02 GMT'}]
|
2017-04-05
|
[array(['Thaicharoen', 'N.', ''], dtype=object)
array(['Schwarzkopf', 'A.', ''], dtype=object)
array(['Raithel', 'G.', ''], dtype=object)]
|
1,276 |
astro-ph/0312255
|
Brad Gibson
|
Brad K. Gibson, Yeshe Fenner, Agostino Renda, Daisuke Kawata,
Hyun-chul Lee (Swinburne)
|
Galactic Chemical Evolution
|
16 pages, 9 figures, 1 table, LaTeX (emulatepasa.sty). Invited
Review, accepted for publication in the Publications of the Astronomical
Society of Australia, Vol 20, Num 4 (2003)
| null |
10.1071/AS03052
| null |
astro-ph
| null |
The primary present-day observables upon which theories of galaxy evolution
are based are a system's morphology, dynamics, colour, and chemistry.
Individually, each provides an important constraint to any given model; in
concert, the four represent a fundamental (intractable) boundary condition for
chemodynamical simulations. We review the current state-of-the-art
semi-analytical and chemodynamical models for the Milky Way, emphasising the
strengths and weaknesses of both approaches.
|
[{'version': 'v1', 'created': 'Wed, 10 Dec 2003 06:58:43 GMT'}]
|
2009-11-10
|
[array(['Gibson', 'Brad K.', '', 'Swinburne'], dtype=object)
array(['Fenner', 'Yeshe', '', 'Swinburne'], dtype=object)
array(['Renda', 'Agostino', '', 'Swinburne'], dtype=object)
array(['Kawata', 'Daisuke', '', 'Swinburne'], dtype=object)
array(['Lee', 'Hyun-chul', '', 'Swinburne'], dtype=object)]
|
1,277 |
cond-mat/0403324
|
Yu. G. Naidyuk
|
Yu. G. Naidyuk, O. E. Kvitnitskaya, I. K. Yanson, S. Lee, S. Tajima
|
Excess current in point contacts on two-band superconductor MgB$_2$ in
magnetic field
|
4 pages, 3 figs, RevTex4; V2: plain text improved, BTK fit is added
to insets of Fig.3
|
Solid State Commun. Vol.133, Iss. 6, Febr. 2005, pp.363-367
|
10.1016/j.ssc.2004.11.037
| null |
cond-mat.supr-con
| null |
Series of $I(V)$ characteristic and bias-dependent differential resistance
$dV/dI(V)$ for point-contacts on the single crystals of two-band superconductor
MgB$_2$ were measured in magnetic field up to 9 T. We have obtained magnetic
field dependences of the excess current on the $I(V)$ curves and analyzed them
using Koshelev and Golubov (Phys. Rev. Lett. {\bf 90}, 177002 (2003))
theoretical results for the mixed state of a dirty two-band superconductor.
Introducing a simple model for the excess current in the point contact in the
mixed state our data can be qualitatively described utilizing theoretical
magnetic filed behavior of the $\sigma$ and $\pi$-band superconducting order
parameters and the corresponding averaged electronic density of states in
MgB$_2$.
|
[{'version': 'v1', 'created': 'Fri, 12 Mar 2004 16:21:50 GMT'}
{'version': 'v2', 'created': 'Mon, 25 Oct 2004 11:50:45 GMT'}]
|
2009-11-10
|
[array(['Naidyuk', 'Yu. G.', ''], dtype=object)
array(['Kvitnitskaya', 'O. E.', ''], dtype=object)
array(['Yanson', 'I. K.', ''], dtype=object)
array(['Lee', 'S.', ''], dtype=object)
array(['Tajima', 'S.', ''], dtype=object)]
|
1,278 |
1104.1987
|
Andre Platzer
|
Andre Platzer (Carnegie Mellon University)
|
The Structure of Differential Invariants and Differential Cut
Elimination
| null |
Logical Methods in Computer Science, Volume 8, Issue 4 (November
21, 2012) lmcs:809
|
10.2168/LMCS-8(4:16)2012
| null |
cs.LO math.CA math.DS math.LO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The biggest challenge in hybrid systems verification is the handling of
differential equations. Because computable closed-form solutions only exist for
very simple differential equations, proof certificates have been proposed for
more scalable verification. Search procedures for these proof certificates are
still rather ad-hoc, though, because the problem structure is only understood
poorly. We investigate differential invariants, which define an induction
principle for differential equations and which can be checked for invariance
along a differential equation just by using their differential structure,
without having to solve them. We study the structural properties of
differential invariants. To analyze trade-offs for proof search complexity, we
identify more than a dozen relations between several classes of differential
invariants and compare their deductive power. As our main results, we analyze
the deductive power of differential cuts and the deductive power of
differential invariants with auxiliary differential variables. We refute the
differential cut elimination hypothesis and show that, unlike standard cuts,
differential cuts are fundamental proof principles that strictly increase the
deductive power. We also prove that the deductive power increases further when
adding auxiliary differential variables to the dynamics.
|
[{'version': 'v1', 'created': 'Mon, 11 Apr 2011 16:17:09 GMT'}
{'version': 'v2', 'created': 'Fri, 6 Jul 2012 19:12:18 GMT'}
{'version': 'v3', 'created': 'Tue, 20 Nov 2012 20:49:56 GMT'}
{'version': 'v4', 'created': 'Fri, 23 Nov 2012 17:39:32 GMT'}]
|
2015-11-25
|
[array(['Platzer', 'Andre', '', 'Carnegie Mellon University'], dtype=object)]
|
1,279 |
1603.09661
|
Alessio Carrega
|
Alessio Carrega
|
9 generators of the skein space of the 3-torus
|
11 pages, 1 figure
|
Algebr. Geom. Topol. 17 (2017) 3449-3460
|
10.2140/agt.2017.17.3449
| null |
math.GT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that the skein vector space of the 3-torus is finitely generated. We
show that it is generated by 9 elements: the empty set, some simple closed
curves representing the non null elements of the first homology group with
coefficients in \Z_2, and a link consisting of two parallel copies of one of
the previous non empty knots.
|
[{'version': 'v1', 'created': 'Thu, 31 Mar 2016 16:21:30 GMT'}]
|
2018-03-16
|
[array(['Carrega', 'Alessio', ''], dtype=object)]
|
1,280 |
2006.15278
|
Alban Sauret
|
B. M. Dincau, E. Mai, Q. Magdelaine, J. A. Lee, M. Z. Bazant and A.
Sauret
|
Entrainment of particles during the withdrawal of a fiber from a dilute
suspension
| null | null | null | null |
physics.flu-dyn
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A fiber withdrawn from a bath of a dilute particulate suspension exhibits
different coating regimes depending on the physical properties of the fluid,
the withdrawal speed, the particle sizes, and the radius of the fiber. Our
experiments indicate that only the liquid without particles is entrained for
thin coating films. Beyond a threshold capillary number, the fiber is coated by
a liquid film with entrained particles. We systematically characterize the role
of the capillary number, the particle size, and the fiber radius on the
threshold speed for particle entrainment. We discuss the boundary between these
two regimes and show that the thickness of the liquid film at the stagnation
point controls the entrainment process. The radius of the fiber provides a new
degree of control in capillary filtering, allowing greater control over the
size of the particles entrained in the film.
|
[{'version': 'v1', 'created': 'Sat, 27 Jun 2020 04:19:27 GMT'}]
|
2020-06-30
|
[array(['Dincau', 'B. M.', ''], dtype=object)
array(['Mai', 'E.', ''], dtype=object)
array(['Magdelaine', 'Q.', ''], dtype=object)
array(['Lee', 'J. A.', ''], dtype=object)
array(['Bazant', 'M. Z.', ''], dtype=object)
array(['Sauret', 'A.', ''], dtype=object)]
|
1,281 |
1505.07548
|
Andrew Smith
|
Jian Lou and Andrew M. Smith and Yevgeniy Vorobeychik
|
Multidefender Security Games
| null | null | null | null |
cs.GT cs.AI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Stackelberg security game models and associated computational tools have seen
deployment in a number of high-consequence security settings, such as LAX
canine patrols and Federal Air Marshal Service. These models focus on isolated
systems with only one defender, despite being part of a more complex system
with multiple players. Furthermore, many real systems such as transportation
networks and the power grid exhibit interdependencies between targets and,
consequently, between decision makers jointly charged with protecting them. To
understand such multidefender strategic interactions present in security, we
investigate game theoretic models of security games with multiple defenders.
Unlike most prior analysis, we focus on the situations in which each defender
must protect multiple targets, so that even a single defender's best response
decision is, in general, highly non-trivial. We start with an analytical
investigation of multidefender security games with independent targets,
offering an equilibrium and price-of-anarchy analysis of three models with
increasing generality. In all models, we find that defenders have the incentive
to over-protect targets, at times significantly. Additionally, in the simpler
models, we find that the price of anarchy is unbounded, linearly increasing
both in the number of defenders and the number of targets per defender.
Considering interdependencies among targets, we develop a novel mixed-integer
linear programming formulation to compute a defender's best response, and make
use of this formulation in approximating Nash equilibria of the game. We apply
this approach towards computational strategic analysis of several models of
networks representing interdependencies, including real-world power networks.
Our analysis shows how network structure and the probability of failure spread
determine the propensity of defenders to over- or under-invest in security.
|
[{'version': 'v1', 'created': 'Thu, 28 May 2015 04:54:53 GMT'}]
|
2015-05-29
|
[array(['Lou', 'Jian', ''], dtype=object)
array(['Smith', 'Andrew M.', ''], dtype=object)
array(['Vorobeychik', 'Yevgeniy', ''], dtype=object)]
|
1,282 |
0712.3254
|
Carlo Barbieri
|
C. Barbieri (1), E. Caurier (2), K. Langanke (1,2), G.
Mart\'inez-Pinedo (1) ((1) GSI, (2) IRES Strasbourg, (3) TU Darmstadt)
|
Pygmy dipole response of proton rich argon beyond the random phase
approximation
|
Submitted to Phys. Rev. C
| null | null | null |
nucl-th
| null |
The occurrence of a pygmy dipole resonance in proton rich Ar-32 and Ar-34 is
studied using the unitary correlator operator method interaction Vucom, based
on Argonne V18. Predictions from the random phase approximation (RPA) and the
shell model in a no-core basis are compared.
It is found that the inclusion of configuration mixing up to
two-particle--two-holes broadens the pygmy strength slightly and reduces
sensibly its strength, as compared to the RPA predictions. For Ar-32 a clear
peak associated with a pygmy resonance is found. For Ar-34, the pygmy states
are obtained close to the giant dipole resonance and mix with it.
|
[{'version': 'v1', 'created': 'Wed, 19 Dec 2007 18:55:33 GMT'}]
|
2007-12-20
|
[array(['Barbieri', 'C.', '', 'GSI'], dtype=object)
array(['Caurier', 'E.', '', 'IRES Strasbourg'], dtype=object)
array(['Langanke', 'K.', '', 'GSI', 'IRES Strasbourg'], dtype=object)
array(['Martínez-Pinedo', 'G.', '', 'GSI'], dtype=object)]
|
1,283 |
math/0603162
|
Samy Tindel
|
David Marquez-Carreras, Carles Rovira, Samy Tindel
|
A diluted version of the perceptron model
|
39 pages
| null | null | null |
math.PR
| null |
This note is concerned with a diluted version of the perceptron model. We
establish a replica symmetric formula at high temperature, which is achieved by
studying the asymptotic behavior of a given spin magnetization. Our main task
will be to identify the order parameter of the system.
|
[{'version': 'v1', 'created': 'Tue, 7 Mar 2006 15:45:00 GMT'}]
|
2007-05-23
|
[array(['Marquez-Carreras', 'David', ''], dtype=object)
array(['Rovira', 'Carles', ''], dtype=object)
array(['Tindel', 'Samy', ''], dtype=object)]
|
1,284 |
astro-ph/9912082
|
Daniel Stern
|
Daniel Stern (UC-Berkeley) and Hyron Spinrad (UC-Berkeley)
|
Search Techniques for Distant Galaxies
|
53 pages, 14 figures; invited review to appear in Publications of the
Astronomical Society of the Pacific (Dec 1999)
|
Publ.Astron.Soc.Pac. 111 (1999) 1475-1502
|
10.1086/316471
| null |
astro-ph
| null |
How and when do galaxies form? Studies of the microwave background radiation
reveal that the Universe is spectacularly homogenous at redshift z~1000.
Observations of the local Universe reveal that by z=0 much of the luminous
matter has condensed into mature, gravitationally-bound structures. One of the
primary challenges to astronomers today is to achieve a robust understanding of
this process of galaxy formation and evolution. Locating and studying young
galaxies at large look-back times is an essential aspect of this program. We
review the systematic observational techniques used to identify galaxies at
early cosmic epochs. In the past few years, the study of normal, star-forming
galaxies at z>3 has become possible; indeed, successful methods have been
developed to push the frontier past z=5. We are now directly observing
individual galaxies within a Gyr of the Big Bang. We present a detailed review
of the many search methods used for identifying distant galaxies, consider the
biases inherent in different search strategies, and discuss early results of
these studies. We conclude with goals for future studies at the start of the
21st century.
|
[{'version': 'v1', 'created': 'Sat, 4 Dec 1999 00:05:41 GMT'}]
|
2009-10-31
|
[array(['Stern', 'Daniel', '', 'UC-Berkeley'], dtype=object)
array(['Spinrad', 'Hyron', '', 'UC-Berkeley'], dtype=object)]
|
1,285 |
1002.1971
|
John F. Gunion
|
Radovan Dermisek (U. Indiana) and John F. Gunion (U.C. Davis and CERN)
|
New constraints on a light CP-odd Higgs boson and related NMSSM Ideal
Higgs Scenarios
|
24 pages, 25 figures, paper updated to incorporate final ALEPH limits
in Z+4\tau channel.
|
Phys.Rev.D81:075003,2010
|
10.1103/PhysRevD.81.075003
|
CERN-PH-TH/2010-031
|
hep-ph hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Recent BaBar limits on $\br(\Upsilon(3S)\to \gam a\to \gam \tau^+\tau^-)$ and
$\br(\Upsilon(3S)\to \gam a\to \gam \mu^+\mu^-)$ provide increased constraints
on the $a b\anti b$ coupling of a CP-odd Higgs boson, $a$, with
$m_a<M_{\Upsilon(3S)}$. We extract these limits from the BaBar data and compare
to the limits previously obtained using other data sets, especially the
CLEO-III $\br(\Upsilon(1S)\to \gam\to\tau^+\tau^-)$ limits. Comparisons are
made to predictions in the context of "ideal"-Higgs NMSSM scenarios, in which
the lightest CP-even Higgs boson, $h_1$, can have mass below $105\gev$ (as
preferred by precision electroweak data) and yet can escape old LEP limits by
virtue of decays to a pair of the lightest CP-odd Higgs bosons, $h_1\to
a_1a_1$, with $m_{a_1}<2m_B$. Most such scenarios with $m_{a_1}<2m_\tau$ are
eliminated, but the bulk of the $m_{a_1}>7.5\gev$ scenarios, which are
theoretically the most favored, survive. We also outline the impact of the new
ALEPH LEP results in the $\epem\to Z+4\tau$ channel. For $\tan\beta\geq 3$,
only NMSSM ideal Higgs scenarios with $m_{h_1}\gsim 98\gev$ and $m_{a_1}$ close
to $2m_B $ satisfy the ALEPH limits. For $\tan\beta\lsim 2$, the ALEPH limits
are easily satisfied for the most theoretically preferred NMSSM scenarios,
which are those with $m_{a_1}$ close to $2m_B$ and $m_{h_1}\sim
90\gev-100\gev$.
|
[{'version': 'v1', 'created': 'Tue, 9 Feb 2010 21:06:34 GMT'}
{'version': 'v2', 'created': 'Tue, 9 Mar 2010 23:10:33 GMT'}]
|
2010-04-14
|
[array(['Dermisek', 'Radovan', '', 'U. Indiana'], dtype=object)
array(['Gunion', 'John F.', '', 'U.C. Davis and CERN'], dtype=object)]
|
1,286 |
1504.00317
|
Jean-Philippe Lansberg
|
Yu Feng, Jean-Philippe Lansberg, Jian-Xiong Wang
|
Energy Dependence of Direct-Quarkonium Production in pp Collisions from
Fixed-Target to LHC Energies: Complete One-Loop Analysis
|
15 pages, 22 Figures, LaTeX uses svepjc3.clo, svglov3.clo,
svjour3.cls (included)
| null | null | null |
hep-ph hep-ex nucl-ex nucl-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We compute the energy dependence of the P_T-integrated cross section of
directly produced quarkonia in pp collisions at next-to-leading order (NLO),
namely up to alpha_s^3, within nonrelativistic QCD (NRQCD). Our analysis is
based on the idea that the P_T-integrated and the P_T-differential cross
sections can be treated as two different observables. The colour-octet NRQCD
parameters needed to predict the P_T-integrated yield can thus be extracted
from the fits of the P_T-differential cross sections at mid and large P_T. For
the first time, the total cross section is evaluated in NRQCD at full NLO
accuracy using the recent NLO fits of the P_T-differential yields at RHIC, the
Tevatron and the LHC. Both the normalisation and the energy dependence of the
J/psi, psi' and Upsilon(1S), we obtained, are in disagreement with the data
irrespective of the fit method. The same is true if one uses CEM-like
colour-octet NRQCD parameters. If, on the contrary, one disregards the
colour-octet contribution, the existing data in the TeV range are well
described by the alpha_s^3 contribution in the colour-singlet model --which, at
alpha_s^4, however shows an unphysical energy dependence. A similar observation
is made for eta(c,b). This calls for a full NNLO or for a resummation of the
initial-state radiation in this channel. In any case, past claims that
colour-octet transitions are dominantly responsible for low-P_T quarkonium
production are not supported by our results. This may impact the interpretation
of quarkonium suppression in high-energy proton-nucleus and nucleus-nucleus
collisions.
|
[{'version': 'v1', 'created': 'Wed, 1 Apr 2015 17:59:35 GMT'}]
|
2015-04-21
|
[array(['Feng', 'Yu', ''], dtype=object)
array(['Lansberg', 'Jean-Philippe', ''], dtype=object)
array(['Wang', 'Jian-Xiong', ''], dtype=object)]
|
1,287 |
2009.02915
|
Bestoun Ahmed Dr.
|
Krystof Sykora and Bestoun S. Ahmed and Miroslav Bures
|
Code Coverage Aware Test Generation Using Constraint Solver
|
9 pages
| null | null | null |
cs.SE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Code coverage has been used in the software testing context mostly as a
metric to assess a generated test suite's quality. Recently, code coverage
analysis is used as a white-box testing technique for test optimization. Most
of the research activities focus on using code coverage for test prioritization
and selection within automated testing strategies. Less effort has been paid in
the literature to use code coverage for test generation. This paper introduces
a new Code Coverage-based Test Case Generation (CCTG) concept that changes the
current practices by utilizing the code coverage analysis in the test
generation process. CCTG uses the code coverage data to calculate the input
parameters' impact for a constraint solver to automate the generation of
effective test suites. We applied this approach to a few real-world case
studies. The results showed that the new test generation approach could
generate effective test cases and detect new faults.
|
[{'version': 'v1', 'created': 'Mon, 7 Sep 2020 07:25:27 GMT'}]
|
2020-09-08
|
[array(['Sykora', 'Krystof', ''], dtype=object)
array(['Ahmed', 'Bestoun S.', ''], dtype=object)
array(['Bures', 'Miroslav', ''], dtype=object)]
|
1,288 |
1806.11309
|
G\'abor Kasza
|
G\'abor Kasza, Tam\'as Cs\"org\H{o}
|
A new and finite family of solutions of hydrodynamics: Part II: Advanced
estimate of initial energy densities
|
Invited talk of G. Kasza at the WPCF 2018 conference in Cracow,
Poland, May 22-26, 2018. Submitted to Acta Physica Polonica B
|
Acta Phys. Pol. B Proc. Suppl. vol. 12 (2), pp. 175 - 180 (2019)
|
10.5506/APhysPolBSupp.12.175
| null |
nucl-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We derive a new, exact formula for the estimate of the initial energy
densities from a new family of finite and exact solution of relativistic
perfect fluid hydrodynamics. The new formula depends non-trivially on the speed
of sound and on the shape or width parameter of the measured (pseudo)rapidity
distribution.
|
[{'version': 'v1', 'created': 'Fri, 29 Jun 2018 09:08:08 GMT'}]
|
2019-06-27
|
[array(['Kasza', 'Gábor', ''], dtype=object)
array(['Csörgő', 'Tamás', ''], dtype=object)]
|
1,289 |
2211.16850
|
Tomaz Javornik
|
Toma\v{z} Javornik, Andrej Hrovat and Ale\v{s} \v{S}vigelj
|
Radio technologies for environment-aware wireless communications
| null | null | null | null |
eess.SP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we critically review the potential of today's terrestrial
wireless communication systems including wireless cellular technologies (GSM,
UMTS, LTE, NR), wireless local area networks (WLANs), and wireless sensor
networks (WSNs), for estimating channel state information (CSI), the ratio
between training and information symbols and the rate of channel variation, and
the potential use of CSI in environment aware wireless communications. The
research reveals, that early communication systems provide means for narrowband
channel estimation and the CSI is only available as channel attenuation based
on signal level measurements. By increasing the spectral bandwidth of
communications, the CSI is estimated in some form of channel impulse response
(CIR) in almost all currently used radio technologies, but this information is
generally not available outside the communication systems. Also, the CSI is
estimated only for the channel with active communications. The new radio
technology (NR) offers the possibility of estimating the CIR for non-active
channels as well, and thus the possibility of initiating environmentally aware
wireless communications.
|
[{'version': 'v1', 'created': 'Wed, 30 Nov 2022 09:49:37 GMT'}]
|
2022-12-01
|
[array(['Javornik', 'Tomaž', ''], dtype=object)
array(['Hrovat', 'Andrej', ''], dtype=object)
array(['Švigelj', 'Aleš', ''], dtype=object)]
|
1,290 |
2011.08361
|
Hongsheng He
|
Bharath Rao, Hui Li, Krishna Krishnan, Enkhsaikhan Boldsaikhan, and
Hongsheng He
|
Knowledge-Augmented Dexterous Grasping with Incomplete Sensing
|
11 pages, 14 figures and 3 tables
| null | null | null |
cs.RO
|
http://creativecommons.org/licenses/by/4.0/
|
Humans can determine a proper strategy to grasp an object according to the
measured physical attributes or the prior knowledge of the object. This paper
proposes an approach to determining the strategy of dexterous grasping by using
an anthropomorphic robotic hand simply based on a label or a description of an
object. Object attributes are parsed from natural-language descriptions and
augmented with an object knowledge base that is scraped from retailer websites.
A novel metric named joint probability distance is defined to measure distance
between object attributes. The probability distribution of grasp types for the
given object is learned using a deep neural network which takes in object
features as input. The action of the multi-fingered hand with redundant degrees
of freedom (DoF) is controlled by a linear inverse-kinematics model of grasp
topology and scales. The grasping strategy generated by the proposed approach
is evaluated both by simulation and execution on a Sawyer robot with an AR10
robotic hand.
|
[{'version': 'v1', 'created': 'Tue, 17 Nov 2020 01:34:26 GMT'}]
|
2020-11-18
|
[array(['Rao', 'Bharath', ''], dtype=object)
array(['Li', 'Hui', ''], dtype=object)
array(['Krishnan', 'Krishna', ''], dtype=object)
array(['Boldsaikhan', 'Enkhsaikhan', ''], dtype=object)
array(['He', 'Hongsheng', ''], dtype=object)]
|
1,291 |
1404.0168
|
Chao-Jun Feng
|
Chao-Jun Feng, Xin-Zhou Li and Dao-Jun Liu
|
Note on Power-Law Inflation in Noncommutative Space-Time
|
9 pages, 2 figures
| null | null | null |
astro-ph.CO hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we propose a new method to calculate the mode functions in the
noncommutative power-law inflation model. In this model, all the modes created
when the stringy space-time uncertainty relation is satisfied are generated
inside the Hubble horizon during inflation. It turns out that a linear term
describing the noncommutative space-time effect contributes to the power
spectra of the scalar and tensor perturbations. Confronting this model with
latest results from \textit{Planck} and BICEP2, we constrain the parameters in
this model and we find it is well consistent with observations.
|
[{'version': 'v1', 'created': 'Tue, 1 Apr 2014 08:57:46 GMT'}]
|
2014-04-02
|
[array(['Feng', 'Chao-Jun', ''], dtype=object)
array(['Li', 'Xin-Zhou', ''], dtype=object)
array(['Liu', 'Dao-Jun', ''], dtype=object)]
|
1,292 |
1805.07617
|
Zhizhang Xie
|
Zhizhang Xie and Guoliang Yu
|
Delocalized eta invariants, algebraicity, and $K$-theory of group
$C^*$-algebras
|
27 pages. arXiv admin note: text overlap with arXiv:1804.09026 by
other authors
| null | null | null |
math.KT math.OA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we establish a precise connection between higher rho
invariants and delocalized eta invariants. Given an element in a discrete
group, if its conjugacy class has polynomial growth, then there is a natural
trace map on the $K_0$-group of its group $C^\ast$-algebra. For each such trace
map, we construct a determinant map on secondary higher invariants. We show
that, under the evaluation of this determinant map, the image of a higher rho
invariant is precisely the corresponding delocalized eta invariant of Lott. As
a consequence, we show that if the Baum-Connes conjecture holds for a group,
then Lott's delocalized eta invariants take values in algebraic numbers. We
also generalize Lott's delocalized eta invariant to the case where the
corresponding conjugacy class does not have polynomial growth, provided that
the strong Novikov conjecture holds for the group.
|
[{'version': 'v1', 'created': 'Sat, 19 May 2018 15:52:35 GMT'}
{'version': 'v2', 'created': 'Fri, 3 Aug 2018 09:09:40 GMT'}
{'version': 'v3', 'created': 'Thu, 8 Nov 2018 03:02:48 GMT'}
{'version': 'v4', 'created': 'Thu, 9 May 2019 17:06:16 GMT'}]
|
2019-05-13
|
[array(['Xie', 'Zhizhang', ''], dtype=object)
array(['Yu', 'Guoliang', ''], dtype=object)]
|
1,293 |
1809.00132
|
Yinghao Ge Mr.
|
Yinghao Ge, Weile Zhang, Feifei Gao, and Hlaing Minn
|
Angle-Domain Approach for Parameter Estimation in High-Mobility OFDM
with Fully/Partly Calibrated Massive ULA
|
Single columns, 32 pages, 12 figures, transactions paper
| null | null | null |
eess.SP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we consider a downlink orthogonal frequency division
multiplexing (OFDM) system from a base station to a high-speed train (HST)
equipped with fully/partly calibrated massive uniform linear antenna-array
(ULA) in wireless environments with abundant scatterers. Multiple Doppler
frequency offsets (DFOs) stemming from intensive propagation paths together
with transceiver oscillator frequency offset (OFO) result in a fast
time-varying frequency-selective channel. We develop an angle domain carrier
frequency offset (CFO, general designation for DFO and OFO) estimation
approach. A high-resolution beamforming network is designed to separate
different DFOs into a set of parallel branches in angle domain such that each
branch is mainly affected by a single dominant DFO. Then, a joint estimation
algorithm for both maximum DFO and OFO is developed for fully calibrated ULA.
Next, its estimation mean square error (MSE) performance is analyzed under
inter-subarray mismatches. To mitigate the detrimental effects of
inter-subarray mismatches, we introduce a calibration-oriented beamforming
parameter (COBP) and develop the corresponding modified joint estimation
algorithm for partly calibrated ULA. Moreover, the Cramer-Rao lower bound of
CFO estimation is derived. Both theoretical and numerical results are provided
to corroborate the proposed method.
|
[{'version': 'v1', 'created': 'Sat, 1 Sep 2018 08:09:19 GMT'}]
|
2018-09-05
|
[array(['Ge', 'Yinghao', ''], dtype=object)
array(['Zhang', 'Weile', ''], dtype=object)
array(['Gao', 'Feifei', ''], dtype=object)
array(['Minn', 'Hlaing', ''], dtype=object)]
|
1,294 |
nucl-th/9508037
|
Seungho Choi
|
Seungho Choe, Myung Ki Cheoun and Su Houng Lee (Yonsei University)
|
$g_{K N \Lambda}$ and $g_{K N \Sigma}$ from QCD sum rules
|
14 pages (REVTeX) and 2 PS figures
|
Phys.Rev.C53:1363-1367,1996
|
10.1103/PhysRevC.53.1363
|
SNUTP 95-082
|
nucl-th hep-ph nucl-ex
| null |
$g_{K N \Lambda}$ and $g_{K N \Sigma}$ are calculated using a QCD sum rule
motivated method used by Reinders, Rubinstein and Yazaki to extract Hadron
couplings to goldstone bosons. The SU(3) symmetry breaking effects are taken
into account by including the contributions from the strange quark mass and
assuming different values for the strange and the up down quark condensates. We
find $g_{K N \Lambda}/\sqrt{4 \pi} = - 1.96 $ and $g_{K N \Sigma}/\sqrt{4 \pi}
= 0.33 $
|
[{'version': 'v1', 'created': 'Wed, 23 Aug 1995 05:26:55 GMT'}
{'version': 'v2', 'created': 'Thu, 24 Aug 1995 03:26:41 GMT'}]
|
2009-09-25
|
[array(['Choe', 'Seungho', '', 'Yonsei University'], dtype=object)
array(['Cheoun', 'Myung Ki', '', 'Yonsei University'], dtype=object)
array(['Lee', 'Su Houng', '', 'Yonsei University'], dtype=object)]
|
1,295 |
1602.05336
|
Sang Pyo Kim
|
Sang Pyo Kim
|
Schwinger Effect, Hawking Radiation, and Unruh Effect
|
Latex 10 pages, no figure; Proceedings for LeCosPA Symposium,
National Taiwan University, Dec. 14-18, 2015
| null |
10.1142/S021827181645005X
| null |
hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We revisit the Schwinger effect in de Sitter, anti-de Sitter spaces and
charged black holes, and explore the interplay between quantum electrodynamics
and the quantum gravity effect at one-loop level. We then advance a thermal
interpretation of the Schwinger effect in curved spacetimes. Finally, we show
that the Schwinger effect in a near-extremal black hole differs from Hawking
radiation of charged particles in a non-extremal black hole and is factorized
into those in an anti-de Sitter space and a Rindler space with the surface
gravity for acceleration.
|
[{'version': 'v1', 'created': 'Wed, 17 Feb 2016 09:04:52 GMT'}]
|
2016-11-23
|
[array(['Kim', 'Sang Pyo', ''], dtype=object)]
|
1,296 |
1404.4946
|
Qian Yue
|
Q. Yue, W. Zhao, K.J. Kang, J.P. Cheng, Y.J. Li, S.T. Lin, J.P. Chang,
N. Chen, Q.H. Chen, Y.H. Chen, Y.C. Chuang, Z. Deng, Q. Du, H. Gong, X.Q.
Hao, H.J. He, Q.J. He, H.X. Huang, T.R. Huang, H. Jiang, H.B. Li, J.M. Li, J.
Li, J. Li, X. Li, X.Y. Li, Y.L. Li, H.Y. Liao, F.K. Lin, S.K. Liu, L.C. Lv,
H. Ma, S.J. Mao, J.Q. Qin, J. Ren, J. Ren, X.C. Ruan, M.B. Shen, L. Singh,
M.K. Singh, A.K. Soma, J. Su, C.J. Tang, C.H. Tseng, J.M. Wang, L. Wang, Q.
Wang, H.T. Wong, S.Y. Wu, Y.C. Wu, Y.C. Wu, Z.Z. Xianyu, R.Q. Xiao, H.Y.
Xing, F.Z. Xu, Y. Xu, X.J. Xu, T. Xue, L.T. Yang, S.W. Yang, N. Yi, C.X. Yu,
H. Yu, X.Z. Yu, X.H. Zeng, Z. Zeng, L. Zhang, Y.H. Zhang, M.G. Zhao, Z.Y.
Zhou, J.J. Zhu, W.B. Zhu, X.Z. Zhu, and Z.H. Zhu
|
Limits on light WIMPs from the CDEX-1 experiment with a p-type
point-contact germanium detector at the China Jingping Underground Laboratory
|
5 pages, 5 figures
|
Phys. Rev. D 90, 091701 (2014)
|
10.1103/PhysRevD.90.091701
| null |
hep-ex physics.ins-det
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report results of a search for light Dark Matter WIMPs with CDEX-1
experiment at the China Jinping Underground Laboratory, based on 53.9 kg-days
of data from a p-type point-contact germanium detector enclosed by a NaI(Tl)
crystal scintillator as anti-Compton detector. The event rate and spectrum
above the analysis threshold of 475 eVee are consistent with the understood
background model. Part of the allowed regions for WIMP-nucleus coherent elastic
scattering at WIMP mass of 6-20 GeV are probed and excluded. Independent of
interaction channels, this result contradicts the interpretation that the
anomalous excesses of the CoGeNT experiment are induced by Dark Matter, since
identical detector techniques are used in both experiments.
|
[{'version': 'v1', 'created': 'Sat, 19 Apr 2014 12:16:45 GMT'}
{'version': 'v2', 'created': 'Tue, 11 Nov 2014 00:35:46 GMT'}]
|
2014-11-19
|
[array(['Yue', 'Q.', ''], dtype=object)
array(['Zhao', 'W.', ''], dtype=object)
array(['Kang', 'K. J.', ''], dtype=object)
array(['Cheng', 'J. P.', ''], dtype=object)
array(['Li', 'Y. J.', ''], dtype=object)
array(['Lin', 'S. T.', ''], dtype=object)
array(['Chang', 'J. P.', ''], dtype=object)
array(['Chen', 'N.', ''], dtype=object)
array(['Chen', 'Q. H.', ''], dtype=object)
array(['Chen', 'Y. H.', ''], dtype=object)
array(['Chuang', 'Y. C.', ''], dtype=object)
array(['Deng', 'Z.', ''], dtype=object)
array(['Du', 'Q.', ''], dtype=object)
array(['Gong', 'H.', ''], dtype=object)
array(['Hao', 'X. Q.', ''], dtype=object)
array(['He', 'H. J.', ''], dtype=object)
array(['He', 'Q. J.', ''], dtype=object)
array(['Huang', 'H. X.', ''], dtype=object)
array(['Huang', 'T. R.', ''], dtype=object)
array(['Jiang', 'H.', ''], dtype=object)
array(['Li', 'H. B.', ''], dtype=object)
array(['Li', 'J. M.', ''], dtype=object)
array(['Li', 'J.', ''], dtype=object)
array(['Li', 'J.', ''], dtype=object)
array(['Li', 'X.', ''], dtype=object)
array(['Li', 'X. Y.', ''], dtype=object)
array(['Li', 'Y. L.', ''], dtype=object)
array(['Liao', 'H. Y.', ''], dtype=object)
array(['Lin', 'F. K.', ''], dtype=object)
array(['Liu', 'S. K.', ''], dtype=object)
array(['Lv', 'L. C.', ''], dtype=object)
array(['Ma', 'H.', ''], dtype=object)
array(['Mao', 'S. J.', ''], dtype=object)
array(['Qin', 'J. Q.', ''], dtype=object)
array(['Ren', 'J.', ''], dtype=object)
array(['Ren', 'J.', ''], dtype=object)
array(['Ruan', 'X. C.', ''], dtype=object)
array(['Shen', 'M. B.', ''], dtype=object)
array(['Singh', 'L.', ''], dtype=object)
array(['Singh', 'M. K.', ''], dtype=object)
array(['Soma', 'A. K.', ''], dtype=object)
array(['Su', 'J.', ''], dtype=object)
array(['Tang', 'C. J.', ''], dtype=object)
array(['Tseng', 'C. H.', ''], dtype=object)
array(['Wang', 'J. M.', ''], dtype=object)
array(['Wang', 'L.', ''], dtype=object)
array(['Wang', 'Q.', ''], dtype=object)
array(['Wong', 'H. T.', ''], dtype=object)
array(['Wu', 'S. Y.', ''], dtype=object)
array(['Wu', 'Y. C.', ''], dtype=object)
array(['Wu', 'Y. C.', ''], dtype=object)
array(['Xianyu', 'Z. Z.', ''], dtype=object)
array(['Xiao', 'R. Q.', ''], dtype=object)
array(['Xing', 'H. Y.', ''], dtype=object)
array(['Xu', 'F. Z.', ''], dtype=object)
array(['Xu', 'Y.', ''], dtype=object)
array(['Xu', 'X. J.', ''], dtype=object)
array(['Xue', 'T.', ''], dtype=object)
array(['Yang', 'L. T.', ''], dtype=object)
array(['Yang', 'S. W.', ''], dtype=object)
array(['Yi', 'N.', ''], dtype=object)
array(['Yu', 'C. X.', ''], dtype=object)
array(['Yu', 'H.', ''], dtype=object)
array(['Yu', 'X. Z.', ''], dtype=object)
array(['Zeng', 'X. H.', ''], dtype=object)
array(['Zeng', 'Z.', ''], dtype=object)
array(['Zhang', 'L.', ''], dtype=object)
array(['Zhang', 'Y. H.', ''], dtype=object)
array(['Zhao', 'M. G.', ''], dtype=object)
array(['Zhou', 'Z. Y.', ''], dtype=object)
array(['Zhu', 'J. J.', ''], dtype=object)
array(['Zhu', 'W. B.', ''], dtype=object)
array(['Zhu', 'X. Z.', ''], dtype=object)
array(['Zhu', 'Z. H.', ''], dtype=object)]
|
1,297 |
2105.06804
|
Yongliang Shen
|
Yongliang Shen, Xinyin Ma, Zeqi Tan, Shuai Zhang, Wen Wang and Weiming
Lu
|
Locate and Label: A Two-stage Identifier for Nested Named Entity
Recognition
|
Accepted to ACL 2021, camera ready version
| null | null | null |
cs.CL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Named entity recognition (NER) is a well-studied task in natural language
processing. Traditional NER research only deals with flat entities and ignores
nested entities. The span-based methods treat entity recognition as a span
classification task. Although these methods have the innate ability to handle
nested NER, they suffer from high computational cost, ignorance of boundary
information, under-utilization of the spans that partially match with entities,
and difficulties in long entity recognition. To tackle these issues, we propose
a two-stage entity identifier. First we generate span proposals by filtering
and boundary regression on the seed spans to locate the entities, and then
label the boundary-adjusted span proposals with the corresponding categories.
Our method effectively utilizes the boundary information of entities and
partially matched spans during training. Through boundary regression, entities
of any length can be covered theoretically, which improves the ability to
recognize long entities. In addition, many low-quality seed spans are filtered
out in the first stage, which reduces the time complexity of inference.
Experiments on nested NER datasets demonstrate that our proposed method
outperforms previous state-of-the-art models.
|
[{'version': 'v1', 'created': 'Fri, 14 May 2021 12:52:34 GMT'}
{'version': 'v2', 'created': 'Tue, 13 Jul 2021 13:01:18 GMT'}]
|
2021-07-14
|
[array(['Shen', 'Yongliang', ''], dtype=object)
array(['Ma', 'Xinyin', ''], dtype=object)
array(['Tan', 'Zeqi', ''], dtype=object)
array(['Zhang', 'Shuai', ''], dtype=object)
array(['Wang', 'Wen', ''], dtype=object)
array(['Lu', 'Weiming', ''], dtype=object)]
|
1,298 |
2210.11921
|
Tianyi Li
|
Tianyi Li, Michele Buzzicotti, Luca Biferale, Fabio Bonaccorso, Shiyi
Chen and Minping Wan
|
Data reconstruction of turbulent flows with Gappy POD, Extended POD and
Generative Adversarial Networks
| null | null | null | null |
physics.flu-dyn cs.CV cs.LG nlin.CD physics.geo-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Three methods are used to reconstruct two-dimensional instantaneous velocity
fields in a turbulent flow under rotation. The first two methods both use the
linear proper orthogonal decomposition (POD), which are Gappy POD (GPOD) and
Extended POD (EPOD), while the third one reconstructs the flow using a fully
non-linear Convolutional Neural Network embedded in a Generative Adversarial
Network (GAN). First, we show that there is always an optimal number of modes
regarding a specific gap for the GPOD with dimension reduction. Moreover,
adopting a Lasso regularizer for GPOD provides comparable reconstruction
results. In order to systematically compare the applicability of the three
tools, we consider a square gap at changing the size. Results show that
compared with POD-based methods, GAN reconstruction not only has a smaller
$L_2$ error, but also better turbulent statistics of both the velocity module
and the velocity module gradient. This can be attributed to the ability of
nonlinearity expression of the network and the presence of adversarial loss
during the GAN training. We also investigate effects of the adversarial ratio,
which controls the compromising between the $L_2$ error and the statistical
properties. Finally, we assess the reconstruction on random gappiness. All
methods perform well for small- and medium-size gaps, while GAN works better
when the gappiness is large.
|
[{'version': 'v1', 'created': 'Fri, 21 Oct 2022 12:44:39 GMT'}]
|
2022-10-27
|
[array(['Li', 'Tianyi', ''], dtype=object)
array(['Buzzicotti', 'Michele', ''], dtype=object)
array(['Biferale', 'Luca', ''], dtype=object)
array(['Bonaccorso', 'Fabio', ''], dtype=object)
array(['Chen', 'Shiyi', ''], dtype=object)
array(['Wan', 'Minping', ''], dtype=object)]
|
1,299 |
1307.0761
|
Josep-Maria Masqu\'e Dr.
|
Josep M. Masqu\'e, Josep M. Girart, Guillem Anglada, Mayra Osorio,
Robert Estalella, and Maria T. Beltr\'an
|
Interferometric observations of nitrogen-bearing molecular species in
the star-forming core ahead of HH 80N
|
19 pages, 5 figures, 2 tables, accepted for publication in ApJ
| null |
10.1088/0004-637X/776/1/28
| null |
astro-ph.SR astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present VLA NH3 and PdBI NH2D and H13NC observations of the star forming
core ahead of HH 80N, the optically obscured northern counterpart of the
Herbig-Haro objects HH 80/81. The main goal is to determine the kinematical
information of the high density regions of the core ($n\lesssim 10^5$
cm$^{-3}$), missed in previous works due to the depletion of the species
observed (e.g. CS). The obtained maps show different kinematical signatures
between the eastern and western parts of the core, suggesting a possible
dynamical interaction of the core with the HH 80/81/80N outflow. The analysis
of the Position-Velocity (PV) plots of these species rules out a previous
interpretation of having a molecular ring-like structure of $6\times 10^4$ AU
of radius traced by CS infalling onto a central protostar found in the core
(IRS1). High degree of deuteration, with respect to the central part of the
core harboring IRS1, is derived in the eastern part, where a dust condensation
(SE) is located. This deuteration trend of NH3 suggests that SE is in a
prestellar evolutionary stage, earlier than that of the IRS1. Since SE is the
closest condensation to the HH 80N/81/80N outflow, in case of having
outflow-core dynamical interaction, it should be perturbed first and be the
most evolved condensation in the core. Therefore, the derived evolutionary
sequence for SE and IRS1 makes the outflow triggered star formation on IRS1
unlikely.
|
[{'version': 'v1', 'created': 'Tue, 2 Jul 2013 16:57:53 GMT'}
{'version': 'v2', 'created': 'Wed, 10 Jul 2013 16:22:47 GMT'}]
|
2015-06-16
|
[array(['Masqué', 'Josep M.', ''], dtype=object)
array(['Girart', 'Josep M.', ''], dtype=object)
array(['Anglada', 'Guillem', ''], dtype=object)
array(['Osorio', 'Mayra', ''], dtype=object)
array(['Estalella', 'Robert', ''], dtype=object)
array(['Beltrán', 'Maria T.', ''], dtype=object)]
|
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