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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
16,700 |
math/0012057
|
Briend Jean-Yves
|
Jean-Yves Briend, Julien Duval
|
Deux caracterisations de la mesure d'equilibre d'un endomorphisme de
Pk(C)
|
10 pages
| null | null | null |
math.DS math.CV
| null |
Let $\mu$ be the equilibrium measure of an endomorphism of ${\sf P}^k({\bf
C})$. We show that it is its unique measure of maximal entropy. We build $\mu$
directly as the distribution of any point outside an algebraic exceptional set.
|
[{'version': 'v1', 'created': 'Fri, 8 Dec 2000 08:59:56 GMT'}]
|
2007-05-23
|
[array(['Briend', 'Jean-Yves', ''], dtype=object)
array(['Duval', 'Julien', ''], dtype=object)]
|
16,701 |
1806.04676
|
Ma. Teresa Garc\'ia-D\'iaz Dr.
|
Ma. T. Garc\'ia-D\'iaz, W. Steffen, W. J. Henney, J. A. L\'opez, F.
Garc\'ia-L\'opez, D. Gonz\'alez-Buitrago and A. Aviles
|
The Owl and other strigiform nebulae: multipolar cavities within a
filled shell
|
2018, MNRAS
| null |
10.1093/mnras/sty1590
| null |
astro-ph.GA astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present the results of long-slit echelle spectroscopy and deep narrow-band
imaging of the Owl Nebula (NGC 3587), obtained at the \textit{Observatorio
Astron\'omico Nacional, San Pedro M\'artir}. These data allow us to construct
an iso-velocity data cube and develop a 3-D morpho-kinematic model. We find
that, instead of the previously assumed bipolar dumbbell shape, the inner
cavity consists of multi-polar fingers within an overall tripolar structure. We
identify three additional planetary nebulae that show very similar morphologies
and kinematics to the Owl, and propose that these constitute a new class of
\textit{strigiform} (owl-like) nebulae. Common characteristics of the
strigiform nebulae include a double-shell (thin outside thick) structure,
low-luminosity and high-gravity central stars, the absence of a present-day
stellar wind, and asymmetric inner cavities, visible in both optical and
mid-infrared emission lines, that show no evidence for surrounding bright rims.
The origin of the cavities is unclear, but they may constitute relics of an
earlier stage of evolution when the stellar wind was active.
|
[{'version': 'v1', 'created': 'Tue, 12 Jun 2018 16:58:10 GMT'}]
|
2018-06-27
|
[array(['García-Díaz', 'Ma. T.', ''], dtype=object)
array(['Steffen', 'W.', ''], dtype=object)
array(['Henney', 'W. J.', ''], dtype=object)
array(['López', 'J. A.', ''], dtype=object)
array(['García-López', 'F.', ''], dtype=object)
array(['González-Buitrago', 'D.', ''], dtype=object)
array(['Aviles', 'A.', ''], dtype=object)]
|
16,702 |
0903.0856
|
Mladen Georgiev
|
Mladen Georgiev
|
Mode-coupled barrier-controlled atomic processes in solids: a
comparative study
|
11 pages with 4 figures, all pdf
| null | null | null |
cond-mat.mtrl-sci cond-mat.other
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Four basic processes are envisioned, among them migration (diffusion), local
rotation (reorientation), isothermic chemical reactions and nucleation. All of
them are unified by a common approach to the barrier currents that has been
suggested as far back as 1961 by John Bardeen and then extended by Stefan
Christov some ten years later. By introducing the respective radial potentials,
we incorporate Schroedinger's equation and thereby a quantum insight into the
phenomena. Numerical calculations of the obtained statistical transition rates
are reported.
|
[{'version': 'v1', 'created': 'Wed, 4 Mar 2009 20:52:40 GMT'}]
|
2009-03-05
|
[array(['Georgiev', 'Mladen', ''], dtype=object)]
|
16,703 |
1803.01401
|
Erfan Yazdandoost Hamedani
|
Erfan Yazdandoost Hamedani and Necdet Serhat Aybat
|
A Primal-Dual Algorithm with Line Search for General Convex-Concave
Saddle Point Problems
|
linesearch is added; new numerical experiment is added; important
remarks are added in this version
| null | null | null |
math.OC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we propose a primal-dual algorithm with a novel momentum term
using the partial gradients of the coupling function that can be viewed as a
generalization of the method proposed by Chambolle and Pock in 2016 to solve
saddle point problems defined by a convex-concave function $\mathcal
L(x,y)=f(x)+\Phi(x,y)-h(y)$ with a general coupling term $\Phi(x,y)$ that is
not assumed to be bilinear. Assuming $\nabla_x\Phi(\cdot,y)$ is Lipschitz for
any fixed $y$, and $\nabla_y\Phi(\cdot,\cdot)$ is Lipschitz, we show that the
iterate sequence converges to a saddle point; and for any $(x,y)$, we derive
error bounds in terms of $\mathcal L(\bar{x}_k,y)-\mathcal L(x,\bar{y}_k)$ for
the ergodic sequence $\{\bar{x}_k,\bar{y}_k\}$. In particular, we show
$\mathcal O(1/k)$ rate when the problem is merely convex in $x$. Furthermore,
assuming $\Phi(x,\cdot)$ is linear for each fixed $x$ and $f$ is strongly
convex, we obtain the ergodic convergence rate of $\mathcal O(1/k^2)$ -- we are
not aware of another single-loop method in the related literature achieving the
same rate when $\Phi$ is not bilinear. Finally, we propose a backtracking
technique which does not require the knowledge of Lipschitz constants while
ensuring the same convergence results. We also consider convex optimization
problems with nonlinear functional constraints and we show that using the
backtracking scheme, the optimal convergence rate can be achieved even when the
dual domain is unbounded. We tested our method against other state-of-the-art
first-order algorithms and interior-point methods for solving quadratically
constrained quadratic problems with synthetic data, the kernel matrix learning,
and regression with fairness constraints arising in machine learning.
|
[{'version': 'v1', 'created': 'Sun, 4 Mar 2018 18:43:13 GMT'}
{'version': 'v2', 'created': 'Mon, 11 Jun 2018 14:30:03 GMT'}
{'version': 'v3', 'created': 'Mon, 23 Jul 2018 10:27:52 GMT'}
{'version': 'v4', 'created': 'Sat, 30 Nov 2019 04:24:22 GMT'}
{'version': 'v5', 'created': 'Tue, 20 Oct 2020 22:26:12 GMT'}]
|
2020-10-22
|
[array(['Hamedani', 'Erfan Yazdandoost', ''], dtype=object)
array(['Aybat', 'Necdet Serhat', ''], dtype=object)]
|
16,704 |
2212.09539
|
Merlin Medici
|
Carolyn Abbott, Merlin Incerti-Medici
|
Hyperbolic projections and topological invariance of sublinearly Morse
boundaries
|
49 pages, 3 figures; comments welcome
| null | null | null |
math.GT math.GR
|
http://creativecommons.org/licenses/by/4.0/
|
We show that the sublinearly Morse boundary of a CAT(0) cubical group with a
factor system is well-defined up to homeomorphism with respect to the visual
topology. The key tool used in the proof is a new topology on sublinearly Morse
boundaries that is induced by group actions on hyperbolic spaces that are
sufficiently nice, for example, largest acylindrical actions. Using the same
techniques, we obtain a explicit description of this new topology on the
sublinearly Morse boundary of any hierarchically hyperbolic group in terms of
medians. Finally, we explicitly describe the sublinear Morse boundaries of
graph manifolds using their actions on Bass-Serre trees.
|
[{'version': 'v1', 'created': 'Mon, 19 Dec 2022 15:31:08 GMT'}]
|
2022-12-20
|
[array(['Abbott', 'Carolyn', ''], dtype=object)
array(['Incerti-Medici', 'Merlin', ''], dtype=object)]
|
16,705 |
2303.07458
|
Cong Han
|
Cong Han and Nima Mesgarani
|
Online Binaural Speech Separation of Moving Speakers With a Wavesplit
Network
|
To appear in ICASSP 2023
| null | null | null |
eess.AS cs.SD
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Binaural speech separation in real-world scenarios often involves moving
speakers. Most current speech separation methods use utterance-level
permutation invariant training (u-PIT) for training. In inference time,
however, the order of outputs can be inconsistent over time particularly in
long-form speech separation. This situation which is referred to as the speaker
swap problem is even more problematic when speakers constantly move in space
and therefore poses a challenge for consistent placement of speakers in output
channels. Here, we describe a real-time binaural speech separation model based
on a Wavesplit network to mitigate the speaker swap problem for moving speaker
separation. Our model computes a speaker embedding for each speaker at each
time frame from the mixed audio, aggregates embeddings using online clustering,
and uses cluster centroids as speaker profiles to track each speaker throughout
the long duration. Experimental results on reverberant, long-form moving
multitalker speech separation show that the proposed method is less prone to
speaker swap and achieves comparable performance with u-PIT based models with
ground truth tracking in both separation accuracy and preserving the interaural
cues.
|
[{'version': 'v1', 'created': 'Mon, 13 Mar 2023 20:38:14 GMT'}]
|
2023-03-15
|
[array(['Han', 'Cong', ''], dtype=object)
array(['Mesgarani', 'Nima', ''], dtype=object)]
|
16,706 |
1202.6151
|
Jeremy Faupin
|
Jeremy Faupin and Israel Michael Sigal
|
On quantum Huygens principle and Rayleigh scattering
|
35 pages
| null | null | null |
math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We prove several minimal photon velocity estimates below the ionization
threshold for a particle system coupled to the quantized electromagnetic or
phonon field. Using some of these results, we prove the asymptotic completeness
(for the Rayleigh scattering) on the states for which the expectation of the
photon number is uniformly bounded.
|
[{'version': 'v1', 'created': 'Tue, 28 Feb 2012 08:53:02 GMT'}]
|
2012-02-29
|
[array(['Faupin', 'Jeremy', ''], dtype=object)
array(['Sigal', 'Israel Michael', ''], dtype=object)]
|
16,707 |
0906.0435
|
Jerome Petri
|
J. Petri
|
High-energy pulses and phase-resolved spectra by inverse Compton
emission in the pulsar striped wind - Application to Geminga
|
Accepted by A&A
| null |
10.1051/0004-6361/200811010
| null |
astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
(abridged) Although discovered 40 years ago, the emission mechanism
responsible for the observed pulsar radiation remains unclear. However, the
high-energy pulsed emission is usually explained in the framework of either the
polar cap or the outer gap model. The purpose of this work is to study the
pulsed component, that is the light-curves as well as the spectra of the
high-energy emission, above 10 MeV, emanating from the striped wind model.
Gamma rays are produced by scattering off the soft cosmic microwave background
photons on the ultrarelativistic leptons flowing in the current sheets. We
compute the time-dependent inverse Compton emissivity of the wind, in the
Thomson regime, by performing three-dimensional numerical integration in space
over the whole striped wind. The phase-dependent spectral variability is then
calculated as well as the change in pulse shape when going from the lowest to
the highest energies. Several light curves and spectra of inverse Compton
radiation with phase resolved dependence are presented. We apply our model to
the well-known gamma-ray pulsar Geminga. We are able to fit the EGRET spectra
between 10 MeV and 10 GeV as well as the light curve above 100 MeV with good
accuracy.
|
[{'version': 'v1', 'created': 'Tue, 2 Jun 2009 07:36:59 GMT'}]
|
2015-05-13
|
[array(['Petri', 'J.', ''], dtype=object)]
|
16,708 |
gr-qc/9402012
|
Friedrich Wilhelm Hehl
|
F.W. Hehl, J.D. McCrea, E.W. Mielke, Y. Ne'eman
|
Metric-Affine Gauge Theory of Gravity: Field Equations, Noether
Identities, World Spinors, and Breaking of Dilation Invariance
|
197 pages
|
Phys.Rept.258:1-171,1995
|
10.1016/0370-1573(94)00111-F
|
Tel-Aviv University preprint N192 (1994)
|
gr-qc hep-th
| null |
In Einstein's gravitational theory, the spacetime is Riemannian, that is, it
has vanishing torsion and vanishing nonmetricity (covariant derivative of the
metric). In the gauging of the general affine group ${A}(4,R)$ and of its
subgroup ${GL}(4,R)$ in four dimensions, energy--momentum and hypermomentum
currents of matter are canonically coupled to the one--form basis and to the
connection of a metric--affine spacetime with nonvanishing torsion and
nonmetricity, respectively. Fermionic matter can be described in this framework
by half--integer representations of the $\overline{SL}(4,R)$ covering subgroup.
--- We set up a (first--order) Lagrangian formalism and build up the
corresponding Noether machinery. For an arbitrary gauge Lagrangian, the three
gauge field equations come out in a suggestive Yang-Mills like form. The
conservation--type differential identities for energy--momentum and
hypermomentum and the corresponding complexes and superpotentials are derived.
Limiting cases such as the Einstein--Cartan theory are discussed. In particular
we show, how the ${A}(4,R)$ may ``break down'' to the Poincar\'e (inhomogeneous
Lorentz) group. In this context, we present explicit models for a symmetry
breakdown in the cases of the Weyl (or homothetic) group, the ${SL}(4,R)$, or
the ${GL}(4,R)$.
|
[{'version': 'v1', 'created': 'Fri, 4 Feb 1994 16:03:04 GMT'}]
|
2008-11-26
|
[array(['Hehl', 'F. W.', ''], dtype=object)
array(['McCrea', 'J. D.', ''], dtype=object)
array(['Mielke', 'E. W.', ''], dtype=object)
array(["Ne'eman", 'Y.', ''], dtype=object)]
|
16,709 |
1710.01571
|
Jhosep Beltran J. Beltran
|
J. Beltran, N. T. Maia and B. M. Pimentel
|
Scalar Quantum Electrodynamics via Duffin-Kemmer-Petiau Gauge Theory in
the Heisenberg Picture:Vacuum Polarization
| null |
International Journal of Modern Physics A Vol. 33 (2018) 1850059
(13 pages)
|
10.1142/S0217751X18500598
| null |
hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Scalar Quantum Electrodynamics is investigated in the Heisenberg picture via
the Duffin-Kemmer-Petiau gauge theory. On this framework, a perturbative method
is used to compute the vacuum polarization tensor and its corresponding induced
current for the case of a charged scalar field in the presence of an external
electromagnetic field. Charge renormalization is brought into discussion for
the interpretation of the results for the vacuum polarization.
|
[{'version': 'v1', 'created': 'Wed, 4 Oct 2017 12:28:06 GMT'}]
|
2018-04-12
|
[array(['Beltran', 'J.', ''], dtype=object)
array(['Maia', 'N. T.', ''], dtype=object)
array(['Pimentel', 'B. M.', ''], dtype=object)]
|
16,710 |
2303.18041
|
Sebastian Bischof
|
Sebastian Bischof, Bernhard M\"uhlherr
|
Isometries of wall-connected twin buildings
|
20 pages, preliminary version, to appear in "Advances in Geometry"
| null | null | null |
math.GR
|
http://creativecommons.org/licenses/by/4.0/
|
We introduce the notion of a wall-connected twin building and show that the
local-to-global principle holds for these twin buildings. As each twin building
satisfying Condition (co) (introduced in [7]) is wall-connected, we obtain a
strengthening of the main result of [7] that covers also the thick irreducible
affne twin buildings of rank at least 3.
|
[{'version': 'v1', 'created': 'Fri, 31 Mar 2023 13:20:36 GMT'}]
|
2023-04-03
|
[array(['Bischof', 'Sebastian', ''], dtype=object)
array(['Mühlherr', 'Bernhard', ''], dtype=object)]
|
16,711 |
2201.04208
|
Ruoxuan Yang
|
Ruoxuan Yang
|
Unstable shock formation of the Burgers-Hilbert equation
|
Reference added. Typos corrected. Remark 1.4 added
| null | null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This paper proves the existence of unstable shocks of the Burgers-Hilbert
equation conjectured in arXiv:2006.05568. More precisely, we construct smooth
initial data with finite $H^9$-norm such that the solution in self-similar
coordinates is asymptotic to the first unstable solution to the self-similar
inviscid Burgers equation. The blowup profile is a cusp with H\"older 1/5
continuity with explicit blowup time and location. Unlike the previously
established stable shocks, the initial data cannot be taken in an open set;
instead, we control the two unstable directions by Newton's iteration.
|
[{'version': 'v1', 'created': 'Tue, 11 Jan 2022 21:41:05 GMT'}
{'version': 'v2', 'created': 'Tue, 15 Feb 2022 20:14:59 GMT'}]
|
2022-02-17
|
[array(['Yang', 'Ruoxuan', ''], dtype=object)]
|
16,712 |
1407.7369
|
B{\l}a\.zej Nikiel-Wroczy\'nski
|
B. Nikiel-Wroczy\'nski, M. Jamrozy, M. Soida, M. Urbanik
|
Multiwavelength study of the radio emission from a tight galaxy pair Arp
143
|
10 pages, 5 figures, 4 tables. Accepted for publication in MNRAS
| null |
10.1093/mnras/stu1475
| null |
astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present results of the recent low-frequency radio observations of a tight
galaxy pair Arp 143 at 234 and 612 MHz. These data are analysed together with
the archive data at 1490, 4860, 8440, and 14940 MHz. From the analysis of the
radio emission we derive constraints on the age of the radio emitting
structures as well as on the properties of their magnetic field. We show that
the collisional ring of NGC 2445 hosts strong magnetic fields (reaching 12
$\mu$G in its northwestern part) manifesting as a steep--spectrum, nonthermal
radiation at radio frequencies. The spectral age of this structure is higher
than estimates derived for the star-forming regions from the H$\alpha$
distribution, suggesting that the radio emission might have a different origin.
The galactic core is of a very young spectral age, suggesting an ongoing
starburst activity. Additionally we identify a possible ridge of emission
between the ring galaxy and its elliptical companion NGC 2444.
|
[{'version': 'v1', 'created': 'Mon, 28 Jul 2014 09:54:20 GMT'}]
|
2015-06-22
|
[array(['Nikiel-Wroczyński', 'B.', ''], dtype=object)
array(['Jamrozy', 'M.', ''], dtype=object)
array(['Soida', 'M.', ''], dtype=object)
array(['Urbanik', 'M.', ''], dtype=object)]
|
16,713 |
2205.13638
|
Michael Freedman
|
Mike Freedman
|
Critical Metrics and Covering Number
| null | null | null | null |
quant-ph hep-th math-ph math.MP
|
http://creativecommons.org/licenses/by/4.0/
|
In both quantum computing and black hole physics, it is natural to regard
some deformations, infinitesimal unitaries, as \emph{easy} and others as
\emph{hard}. This has lead to a renewed examination of right-invariant metrics
on $\operatorname{SU}(2^N)$. It has been hypothesized that there is a critical
such metric -- in the sense of phase transitions -- and a conjectural form
suggested. In this note we explore a restriction that the ring structure on
cohomology places on the global geometry of a critical metric.
|
[{'version': 'v1', 'created': 'Thu, 26 May 2022 21:25:18 GMT'}]
|
2022-05-30
|
[array(['Freedman', 'Mike', ''], dtype=object)]
|
16,714 |
cond-mat/9309017
|
Paul Coddington
|
P.D. Coddington (Northeast Parallel Architectures Center, Syracuse
University, 111 College Place, Syracuse, NY, U.S.A.)
|
Analysis of Random Number Generators Using Monte Carlo Simulation
|
Email: [email protected] 16 pages, Latex with 1 postscript figure.
NPAC technical report SCCS-526
| null |
10.1142/S0129183194000726
| null |
cond-mat hep-lat
| null |
Revisions are almost entirely in the introduction and conclusion. Results are
unchanged, however the comments and recommendations on different generators
were changed, and more references were added.
|
[{'version': 'v1', 'created': 'Tue, 14 Sep 1993 17:17:29 GMT'}
{'version': 'v2', 'created': 'Fri, 15 Oct 1993 21:31:53 GMT'}]
|
2009-10-22
|
[array(['Coddington', 'P. D.', '',
'Northeast Parallel Architectures Center, Syracuse\n University, 111 College Place, Syracuse, NY, U.S.A.'],
dtype=object) ]
|
16,715 |
2004.02474
|
Philippe Jaming
|
Philippe Jaming (IMB), Michael Speckbacher (IMB)
|
Concentration estimates for finite expansions of spherical harmonics on
two-point homogeneous spaces via the large sieve principle
| null | null | null | null |
math.CA math.CV math.FA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the concentration problem on compact two-point homogeneous spaces of
finite expansions of eigenfunctions of the Laplace-Beltrami operator using
large sieve methods. We derive upper bounds for concentration in terms of the
maximum Nyquist density. Our proof uses estimates of the spherical harmonics
basis coefficients of certain zonal filters and an ordering result for Jacobi
polynomials for arguments close to one.
|
[{'version': 'v1', 'created': 'Mon, 6 Apr 2020 08:22:26 GMT'}]
|
2020-04-07
|
[array(['Jaming', 'Philippe', '', 'IMB'], dtype=object)
array(['Speckbacher', 'Michael', '', 'IMB'], dtype=object)]
|
16,716 |
1004.5557
|
Thomas Thersleff
|
Thomas Thersleff, Kazumasa Iida, Silvia Haindl, Martin Kidszun, Darius
Pohl, Andreas Hartmann, Fritz Kurth, Jens Haenisch, Ruben Huehne, Bernd
Rellinghaus, Ludwig Schultz, Bernhard Holzapfel
|
Coherent interfacial bonding on the FeAs tetrahedron in
Fe/Ba(Fe(1-x)Co(x))2As2 bilayers
|
3 pages, 4 figures
|
Appl. Phys. Lett. 97, 022506 (2010)
|
10.1063/1.3457432
| null |
cond-mat.supr-con cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We demonstrate the growth of epitaxial Fe/Ba(Fe(1-x)Co(x))2As2 (Fe/Ba-122)
bilayers on MgO(001) and LSAT(001) single crystal substrates using Pulsed Laser
Deposition (PLD). By exploiting the metallic nature of the FeAs tetrahedron in
the Ba-122 crystal structure, we achieve a coherent interfacial bond between
bcc iron and Co-doped Ba-122. Tc values for both bilayers were close to that of
the PLD target. Direct observation of interfacial bonding between Fe and the
Ba-122 FeAs sublattice by atomic resolution transmission electron microscopy
implies that this bilayer architecture may work for other iron pnictide systems
and pave the way for the fabrication of superconducting/ferromagnetic
heterostructures.
|
[{'version': 'v1', 'created': 'Fri, 30 Apr 2010 15:23:00 GMT'}]
|
2010-07-21
|
[array(['Thersleff', 'Thomas', ''], dtype=object)
array(['Iida', 'Kazumasa', ''], dtype=object)
array(['Haindl', 'Silvia', ''], dtype=object)
array(['Kidszun', 'Martin', ''], dtype=object)
array(['Pohl', 'Darius', ''], dtype=object)
array(['Hartmann', 'Andreas', ''], dtype=object)
array(['Kurth', 'Fritz', ''], dtype=object)
array(['Haenisch', 'Jens', ''], dtype=object)
array(['Huehne', 'Ruben', ''], dtype=object)
array(['Rellinghaus', 'Bernd', ''], dtype=object)
array(['Schultz', 'Ludwig', ''], dtype=object)
array(['Holzapfel', 'Bernhard', ''], dtype=object)]
|
16,717 |
0910.4592
|
Aytac Celik
|
Tarik Omer Ogurtani, Aytac Celik
|
Surface morphological evolutions on single crystal films by strong
anisotropic drift-diffusion under the capillary and electromigration forces
|
41 pages, 18 figures. related simulation movies utilizing numerous
combination of the surface texture, see
http://www.csl.mete.metu.edu.tr/aytac/thesis/movies/index.htm
|
Journal of Applied Physics, Volume 100, 043504 Aug 17, 2006
|
10.1063/1.2234800
| null |
cond-mat.mtrl-sci cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The morphological evolution of voids at the unpassivated surfaces and the
sidewalls of the single crystal metallic films are investigated via computer
simulations by using the novel mathematical model developed by Ogurtani relying
on the fundamental postulates of irreversible thermodynamics. The effects of
the drift-diffusion anisotropy on the development of the surface morphological
scenarios are fully explored under the action of the electromigration (EM) and
capillary forces (CF), utilizing numerous combination of the surface textures
and the directions of the applied electric field. The interconnect failure time
due to the EM induced wedge shape internal voids and the incubation time of the
oscillatory surface waves, under the severe instability regimes, are deduced by
the novel renormalization procedures applied on the outputs of the computer
simulation experiments.
|
[{'version': 'v1', 'created': 'Fri, 23 Oct 2009 20:36:43 GMT'}]
|
2009-10-27
|
[array(['Ogurtani', 'Tarik Omer', ''], dtype=object)
array(['Celik', 'Aytac', ''], dtype=object)]
|
16,718 |
1406.4865
|
Charalampos Markakis
|
Charalampos Markakis, Michael F. O'Boyle, Pablo D. Brubeck, Leor
Barack
|
Discontinuous collocation methods and gravitational self-force
applications
|
29 pages, 5 figures
| null |
10.1088/1361-6382/abdf27
| null |
math.NA cs.NA gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Numerical simulations of extereme mass ratio inspirals, the mostimportant
sources for the LISA detector, face several computational challenges. We
present a new approach to evolving partial differential equations occurring in
black hole perturbation theory and calculations of the self-force acting on
point particles orbiting supermassive black holes. Such equations are
distributionally sourced, and standard numerical methods, such as
finite-difference or spectral methods, face difficulties associated with
approximating discontinuous functions. However, in the self-force problem we
typically have access to full a-priori information about the local structure of
the discontinuity at the particle. Using this information, we show that
high-order accuracy can be recovered by adding to the Lagrange interpolation
formula a linear combination of certain jump amplitudes. We construct
discontinuous spatial and temporal discretizations by operating on the
corrected Lagrange formula. In a method-of-lines framework, this provides a
simple and efficient method of solving time-dependent partial differential
equations, without loss of accuracy near moving singularities or
discontinuities. This method is well-suited for the problem of time-domain
reconstruction of the metric perturbation via the Teukolsky or
Regge-Wheeler-Zerilli formalisms. Parallel implementations on modern CPU and
GPU architectures are discussed.
|
[{'version': 'v1', 'created': 'Wed, 18 Jun 2014 20:00:08 GMT'}
{'version': 'v2', 'created': 'Sun, 3 Jan 2021 05:44:18 GMT'}]
|
2021-02-09
|
[array(['Markakis', 'Charalampos', ''], dtype=object)
array(["O'Boyle", 'Michael F.', ''], dtype=object)
array(['Brubeck', 'Pablo D.', ''], dtype=object)
array(['Barack', 'Leor', ''], dtype=object)]
|
16,719 |
1307.1136
|
Joseph M. Renes
|
Joseph M. Renes, David Sutter, Fr\'ed\'eric Dupuis and Renato Renner
|
Efficient Quantum Polar Codes Requiring No Preshared Entanglement
|
very welcome! 35 pages, 10 figures. v2: Improvements to presentation.
v3: published version
|
IEEE Transactions on Information Theory 61, 6395 (2015)
|
10.1109/TIT.2015.2468084
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We construct an explicit quantum coding scheme which achieves a communication
rate not less than the coherent information when used to transmit quantum
information over a noisy quantum channel. For Pauli and erasure channels we
also present efficient encoding and decoding algorithms for this communication
scheme based on polar codes (essentially linear in the blocklength), but which
do not require the sender and receiver to share any entanglement before the
protocol begins. Due to the existence of degeneracies in the involved
error-correcting codes it is indeed possible that the rate of the scheme
exceeds the coherent information. We provide a simple criterion which indicates
such performance. Finally we discuss how the scheme can be used for secret key
distillation as well as private channel coding.
|
[{'version': 'v1', 'created': 'Wed, 3 Jul 2013 20:03:40 GMT'}
{'version': 'v2', 'created': 'Tue, 1 Apr 2014 14:26:13 GMT'}
{'version': 'v3', 'created': 'Wed, 9 Dec 2015 15:59:45 GMT'}]
|
2015-12-10
|
[array(['Renes', 'Joseph M.', ''], dtype=object)
array(['Sutter', 'David', ''], dtype=object)
array(['Dupuis', 'Frédéric', ''], dtype=object)
array(['Renner', 'Renato', ''], dtype=object)]
|
16,720 |
1905.03022
|
Colin Snodgrass
|
C. Tubiana, G. Rinaldi, C. G\"uttler, C. Snodgrass, X. Shi, X. Hu, R.
Marschall, M. Fulle, D. Bockel\'ee-Morvan, G. Naletto, F. Capaccioni, H.
Sierks, G. Arnold, M. A. Barucci, J.-L. Bertaux, I. Bertini, D. Bodewits, M.
T. Capria, M. Ciarniello, G. Cremonese, J. Crovisier, V. Da Deppo, S. Debei,
M. De Cecco, J. Deller, M.C. De Sanctis, B. Davidsson, L. Doose, S. Erard, G.
Filacchione, U. Fink, M. Formisano, S. Fornasier, P. J. Guti\'errez, W.-H.
Ip, S. Ivanovski, D. Kappel, H. U. Keller, L. Kolokolova, D. Koschny, H.
Krueger, F. La Forgia, P. L. Lamy, L. M. Lara, M. Lazzarin, A. C.
Levasseur-Regourd, Z.-Y. Lin, A. Longobardo, J. J. L\'opez-Moreno, F.
Marzari, A. Migliorini, S. Mottola, R. Rodrigo, F. Taylor, I. Toth, V.
Zakharov
|
Diurnal variation of dust and gas production in comet
67P/Churyumov-Gerasimenko at the inbound equinox as seen by OSIRIS and
VIRTIS-M on board Rosetta
|
15 pages, accepted for publication in A&A
| null |
10.1051/0004-6361/201834869
| null |
astro-ph.EP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
On 27 Apr 2015, when 67P/C-G was at 1.76 au from the Sun and moving towards
perihelion, the OSIRIS and VIRTIS-M instruments on Rosetta observed the
evolving dust and gas coma during a complete rotation of the comet. We aim to
characterize the dust, H2O and CO2 gas spatial distribution in the inner coma.
To do this we performed a quantitative analysis of the release of dust and gas
and compared the observed H2O production rate with the one calculated using a
thermo-physical model. For this study we selected OSIRIS WAC images at 612 nm
(dust) and VIRTIS-M image cubes at 612 nm, 2700 nm (H2O) and 4200 nm (CO2). We
measured the average signal in a circular annulus, to study spatial variation
around the comet, and in a sector of the annulus, to study temporal variation
in the sunward direction with comet rotation, both at a fixed distance of 3.1
km from the comet centre. The spatial correlation between dust and water, both
coming from the sun-lit side of the comet, shows that water is the main driver
of dust activity in this time period. The spatial distribution of CO2 is not
correlated with water and dust. There is no strong temporal correlation between
the dust brightness and water production rate as the comet rotates. The dust
brightness shows a peak at 0deg sub-solar longitude, which is not pronounced in
the water production. At the same epoch, there is also a maximum in CO2
production. An excess of measured water production, with respect to the value
calculated using a simple thermo-physical model, is observed when the head lobe
and regions of the Southern hemisphere with strong seasonal variations are
illuminated. A drastic decrease in dust production, when the water production
(both measured and from the model) displays a maximum, happens when typical
Northern consolidated regions are illuminated and the Southern hemisphere
regions with strong seasonal variations are instead in shadow.
|
[{'version': 'v1', 'created': 'Wed, 8 May 2019 12:05:37 GMT'}]
|
2019-10-02
|
[array(['Tubiana', 'C.', ''], dtype=object)
array(['Rinaldi', 'G.', ''], dtype=object)
array(['Güttler', 'C.', ''], dtype=object)
array(['Snodgrass', 'C.', ''], dtype=object)
array(['Shi', 'X.', ''], dtype=object)
array(['Hu', 'X.', ''], dtype=object)
array(['Marschall', 'R.', ''], dtype=object)
array(['Fulle', 'M.', ''], dtype=object)
array(['Bockelée-Morvan', 'D.', ''], dtype=object)
array(['Naletto', 'G.', ''], dtype=object)
array(['Capaccioni', 'F.', ''], dtype=object)
array(['Sierks', 'H.', ''], dtype=object)
array(['Arnold', 'G.', ''], dtype=object)
array(['Barucci', 'M. A.', ''], dtype=object)
array(['Bertaux', 'J. -L.', ''], dtype=object)
array(['Bertini', 'I.', ''], dtype=object)
array(['Bodewits', 'D.', ''], dtype=object)
array(['Capria', 'M. T.', ''], dtype=object)
array(['Ciarniello', 'M.', ''], dtype=object)
array(['Cremonese', 'G.', ''], dtype=object)
array(['Crovisier', 'J.', ''], dtype=object)
array(['Da Deppo', 'V.', ''], dtype=object)
array(['Debei', 'S.', ''], dtype=object)
array(['De Cecco', 'M.', ''], dtype=object)
array(['Deller', 'J.', ''], dtype=object)
array(['De Sanctis', 'M. C.', ''], dtype=object)
array(['Davidsson', 'B.', ''], dtype=object)
array(['Doose', 'L.', ''], dtype=object)
array(['Erard', 'S.', ''], dtype=object)
array(['Filacchione', 'G.', ''], dtype=object)
array(['Fink', 'U.', ''], dtype=object)
array(['Formisano', 'M.', ''], dtype=object)
array(['Fornasier', 'S.', ''], dtype=object)
array(['Gutiérrez', 'P. J.', ''], dtype=object)
array(['Ip', 'W. -H.', ''], dtype=object)
array(['Ivanovski', 'S.', ''], dtype=object)
array(['Kappel', 'D.', ''], dtype=object)
array(['Keller', 'H. U.', ''], dtype=object)
array(['Kolokolova', 'L.', ''], dtype=object)
array(['Koschny', 'D.', ''], dtype=object)
array(['Krueger', 'H.', ''], dtype=object)
array(['La Forgia', 'F.', ''], dtype=object)
array(['Lamy', 'P. L.', ''], dtype=object)
array(['Lara', 'L. M.', ''], dtype=object)
array(['Lazzarin', 'M.', ''], dtype=object)
array(['Levasseur-Regourd', 'A. C.', ''], dtype=object)
array(['Lin', 'Z. -Y.', ''], dtype=object)
array(['Longobardo', 'A.', ''], dtype=object)
array(['López-Moreno', 'J. J.', ''], dtype=object)
array(['Marzari', 'F.', ''], dtype=object)
array(['Migliorini', 'A.', ''], dtype=object)
array(['Mottola', 'S.', ''], dtype=object)
array(['Rodrigo', 'R.', ''], dtype=object)
array(['Taylor', 'F.', ''], dtype=object)
array(['Toth', 'I.', ''], dtype=object)
array(['Zakharov', 'V.', ''], dtype=object)]
|
16,721 |
1411.1923
|
Fedor Bezrukov
|
Fedor Bezrukov and Mikhail Shaposhnikov
|
Why should we care about the top quark Yukawa coupling?
|
9 pages, 8 figures. The journal version in JETP special issue. Some
discussion is improved, references added, and (here we reluctantly followed
the editorial request) the abstract is expanded
|
J.Exp.Theor.Phys. 120 (2015) 3, 335-343; ZhETF 147 (2015) 3, 389
|
10.1134/S1063776115030152
|
CERN-PH-TH-2014-218
|
hep-ph astro-ph.CO hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In the cosmological context, for the Standard Model to be valid up to the
scale of inflation, the top quark Yukawa coupling $y_t$ should not exceed the
critical value $y_t^{crit}$, coinciding with good precision (about 0.02%) with
the requirement of the stability of the electroweak vacuum. So, the exact
measurements of $y_t$ may give an insight on the possible existence and the
energy scale of new physics above 100 GeV, which is extremely sensitive to
$y_t$. We overview the most recent theoretical computations of $y_t^{crit}$ and
the experimental measurements of $y_t$. Within the theoretical and experimental
uncertainties in $y_t$ the required scale of new physics varies from $10^7$ GeV
to the Planck scale, urging for precise determination of the top quark Yukawa
coupling.
|
[{'version': 'v1', 'created': 'Fri, 7 Nov 2014 14:15:17 GMT'}
{'version': 'v2', 'created': 'Thu, 12 Mar 2015 23:27:57 GMT'}]
|
2015-04-30
|
[array(['Bezrukov', 'Fedor', ''], dtype=object)
array(['Shaposhnikov', 'Mikhail', ''], dtype=object)]
|
16,722 |
1705.02893
|
Yilin Song
|
Yilin Song, Jonathan Viventi, Yao Wang
|
Multi Resolution LSTM For Long Term Prediction In Neural Activity Video
| null | null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Epileptic seizures are caused by abnormal, overly syn- chronized, electrical
activity in the brain. The abnor- mal electrical activity manifests as waves,
propagating across the brain. Accurate prediction of the propagation velocity
and direction of these waves could enable real- time responsive brain
stimulation to suppress or prevent the seizures entirely. However, this problem
is very chal- lenging because the algorithm must be able to predict the neural
signals in a sufficiently long time horizon to allow enough time for medical
intervention. We consider how to accomplish long term prediction using a LSTM
network. To alleviate the vanishing gradient problem, we propose two
encoder-decoder-predictor structures, both using multi-resolution
representation. The novel LSTM structure with multi-resolution layers could
significantly outperform the single-resolution benchmark with similar number of
parameters. To overcome the blurring effect associated with video prediction in
the pixel domain using standard mean square error (MSE) loss, we use energy-
based adversarial training to improve the long-term pre- diction. We
demonstrate and analyze how a discriminative model with an encoder-decoder
structure using 3D CNN model improves long term prediction.
|
[{'version': 'v1', 'created': 'Mon, 8 May 2017 14:32:22 GMT'}
{'version': 'v2', 'created': 'Tue, 3 Jul 2018 02:50:09 GMT'}]
|
2018-07-04
|
[array(['Song', 'Yilin', ''], dtype=object)
array(['Viventi', 'Jonathan', ''], dtype=object)
array(['Wang', 'Yao', ''], dtype=object)]
|
16,723 |
1108.5096
|
Maxime Amblard
|
Maxime Amblard (LORIA)
|
Minimalist Grammars and Minimalist Categorial Grammars, definitions
toward inclusion of generated languages
| null |
Logic and Grammar (2011) 1-20
| null | null |
cs.CL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Stabler proposes an implementation of the Chomskyan Minimalist Program,
Chomsky 95 with Minimalist Grammars - MG, Stabler 97. This framework inherits a
long linguistic tradition. But the semantic calculus is more easily added if
one uses the Curry-Howard isomorphism. Minimalist Categorial Grammars - MCG,
based on an extension of the Lambek calculus, the mixed logic, were introduced
to provide a theoretically-motivated syntax-semantics interface, Amblard 07. In
this article, we give full definitions of MG with algebraic tree descriptions
and of MCG, and take the first steps towards giving a proof of inclusion of
their generated languages.
|
[{'version': 'v1', 'created': 'Thu, 25 Aug 2011 14:15:46 GMT'}]
|
2011-08-26
|
[array(['Amblard', 'Maxime', '', 'LORIA'], dtype=object)]
|
16,724 |
1206.3317
|
Sergio Ulhoa
|
S. C. Ulhoa and R. G. G. Amorim
|
On Non-commutative Corrections of Gravitational Energy in Teleparallel
Gravity
|
11 pages, no figures
|
Journal of Gravity, v. 2013, p. 1-7, 2013
|
10.1155/2013/217813
| null |
gr-qc hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this work we use the theory of Teleparallelism Equivalent to General
Relativity based in non-commutative space-time coordinates. In this context, we
write the corrections of the Schwarzschild solution. As a important result, we
find the corrections of the gravitational energy in the realm of teleparallel
gravity due to the non-commutativity of space-time. Then we interpret such
corrections as a manifestation of quantum theory in gravitational field.
|
[{'version': 'v1', 'created': 'Thu, 14 Jun 2012 20:05:00 GMT'}]
|
2013-12-06
|
[array(['Ulhoa', 'S. C.', ''], dtype=object)
array(['Amorim', 'R. G. G.', ''], dtype=object)]
|
16,725 |
1311.1044
|
Daniel Zelazo
|
Daniel Zelazo, Antonio Franchi, Paolo Robuffo Giordano
|
Rigidity Theory in SE(2) for Unscaled Relative Position Estimation using
only Bearing Measurements
|
submitted to 2014 European Control Conference
| null |
10.1109/ECC.2014.6862558
| null |
math.OC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This work considers the problem of estimating the unscaled relative positions
of a multi-robot team in a common reference frame from bearing-only
measurements. Each robot has access to a relative bearing measurement taken
from the local body frame of the robot, and the robots have no knowledge of a
common or inertial reference frame. A corresponding extension of rigidity
theory is made for frameworks embedded in the \emph{special Euclidean group}
$SE(2) = \mathbb{R}^2 \times \mathcal{S}^1$. We introduce definitions
describing rigidity for $SE(2)$ frameworks and provide necessary and sufficient
conditions for when such a framework is \emph{infinitesimally rigid} in
$SE(2)$. Analogous to the rigidity matrix for point formations, we introduce
the \emph{directed bearing rigidity matrix} and show that an $SE(2)$ framework
is infinitesimally rigid if and only if the rank of this matrix is equal to
$2|\mathcal{V}|-4$, where $|\mathcal{V}|$ is the number of agents in the
ensemble. The directed bearing rigidity matrix and its properties are then used
in the implementation and convergence proof of a distributed estimator to
determine the {unscaled}{} relative positions in a common frame. Some
simulation results are also given to support the analysis.
|
[{'version': 'v1', 'created': 'Tue, 5 Nov 2013 13:12:10 GMT'}]
|
2015-03-03
|
[array(['Zelazo', 'Daniel', ''], dtype=object)
array(['Franchi', 'Antonio', ''], dtype=object)
array(['Giordano', 'Paolo Robuffo', ''], dtype=object)]
|
16,726 |
2210.09252
|
Andrew Pocklington
|
Andrew Pocklington, Yu-Xin Wang, Aashish A. Clerk
|
Dissipative Pairing Interactions: Quantum Instabilities, Topological
Light, and Volume-Law Entanglement
| null |
Phys. Rev. Lett. 130, 123602 (2023)
|
10.1103/PhysRevLett.130.123602
| null |
quant-ph cond-mat.mes-hall
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
We analyze an unusual class of bosonic dynamical instabilities that arise
from dissipative (or non-Hermitian) pairing interactions. We show that,
surprisingly, a completely stable dissipative pairing interaction can be
combined with simple hopping or beam-splitter interactions (also stable) to
generate instabilities. Further, we find that the dissipative steady state in
such a situation remains completely pure up until the instability threshold (in
clear distinction from standard parametric instabilities). These
pairing-induced instabilities also exhibit an extremely pronounced sensitivity
to wavefunction localization. This provides a simple yet powerful method for
selectively populating and entangling edge modes of photonic (or more general
bosonic) lattices having a topological bandstructure. The underlying
dissipative pairing interaction is experimentally resource-friendly, requiring
the addition of a single additional localized interaction to an existing
lattice, and is compatible with a number of existing platforms, including
superconducting circuits.
|
[{'version': 'v1', 'created': 'Mon, 17 Oct 2022 16:49:16 GMT'}
{'version': 'v2', 'created': 'Thu, 23 Mar 2023 19:03:14 GMT'}]
|
2023-03-27
|
[array(['Pocklington', 'Andrew', ''], dtype=object)
array(['Wang', 'Yu-Xin', ''], dtype=object)
array(['Clerk', 'Aashish A.', ''], dtype=object)]
|
16,727 |
1805.01441
|
Alexandre Kisselev
|
S.C. \.Inan, A.V. Kisselev
|
Search for the RS model with a small curvature through photon-induced
process at the LHC
|
22 pages, 8 figures; 11 equations and 8 references are added
|
Eur. Phys. J. C (2018) 78: 729
|
10.1140/epjc/s10052-018-6210-5
| null |
hep-ph hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, potential of the LHC to explore the phenomenology of the
Randall-Sundrum-like scenario with the small curvature for the process $pp \to
p \gamma \gamma p \to p \mu^- \mu^+p $ through the subprocess $\gamma \gamma
\to \mu^- \mu^+$ is examined for two forward detector acceptances, $0.0015 <
\xi< 0.5$ and $0.1< \xi <0.5$. This process is known to be one of the most
clean channels. The sensitivity bounds on the anomalous model parameters have
been found at the $95\%$ confidence level for various LHC integrated luminosity
values.
|
[{'version': 'v1', 'created': 'Thu, 3 May 2018 17:34:07 GMT'}
{'version': 'v2', 'created': 'Thu, 13 Sep 2018 09:24:48 GMT'}]
|
2018-09-26
|
[array(['İnan', 'S. C.', ''], dtype=object)
array(['Kisselev', 'A. V.', ''], dtype=object)]
|
16,728 |
1703.05050
|
Dieter Bauer
|
M. Brics, J. Rapp, and D. Bauer
|
Single-photon double ionization: renormalized-natural-orbital theory vs
multi-configurational Hartree-Fock
|
8 pages, 3 figures, REVTeX
|
J. Phys. B: At. Mol. Opt. Phys. 50, 144003 (2017)
|
10.1088/1361-6455/aa7585
| null |
physics.comp-ph physics.atom-ph quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The $N$-particle wavefunction has too many dimensions for a direct time
propagation of a many-body system according to the time-dependent Schr\"odinger
equation (TDSE). On the other hand, time-dependent density functional theory
(TDDFT) tells us that the single-particle density is, in principle, sufficient.
However, a practicable equation of motion (EOM) for the accurate time evolution
of the single-particle density is unknown. It is thus an obvious idea to
propagate a quantity which is not as reduced as the single-particle density but
less dimensional than the $N$-body wavefunction. Recently, we have introduced
time-dependent renormalized-natural-orbital theory (TDRNOT). TDRNOT is based on
the propagation of the eigenfunctions of the one-body reduced density matrix
(1-RDM), the so-called natural orbitals. In this paper we demonstrate how
TDRNOT is related to the multi-configurational time-dependent Hartree-Fock
(MCTDHF) approach. We also compare the performance of MCTDHF and TDRNOT vs the
TDSE for single-photon double ionization (SPDI) of a 1D helium model atom. SPDI
is one of the effects where TDDFT does not work in practice, especially if one
is interested in correlated photoelectron spectra, for which no explicit
density functional is known.
|
[{'version': 'v1', 'created': 'Wed, 15 Mar 2017 09:49:37 GMT'}
{'version': 'v2', 'created': 'Mon, 20 Mar 2017 13:42:16 GMT'}
{'version': 'v3', 'created': 'Fri, 21 Apr 2017 14:31:41 GMT'}]
|
2017-11-21
|
[array(['Brics', 'M.', ''], dtype=object)
array(['Rapp', 'J.', ''], dtype=object)
array(['Bauer', 'D.', ''], dtype=object)]
|
16,729 |
2001.09799
|
Gleb Fedorov
|
G.P. Fedorov, V.B. Yursa, A.E. Efimov, K.I. Shiianov, A.Yu. Dmitriev,
I.A. Rodionov, A.A. Dobronosova, D.O. Moskalev, A.A. Pishchimova, E.I.
Malevannaya, O.V. Astafiev
|
Light-dressing of a diatomic superconducting artificial molecule
|
18 pages, 9 figures
|
Phys. Rev. A 102, 013707 (2020)
|
10.1103/PhysRevA.102.013707
| null |
physics.atom-ph cond-mat.supr-con quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this work, we irradiate a superconducting artificial molecule composed of
two coupled tunable transmons with microwave light while monitoring its state
via joint dispersive readout. Performing high-power spectroscopy, we observe
and identify a variety of single- and multiphoton transitions. We also find
that at certain fluxes, the measured spectrum of the system deviates
significantly from the solution of the stationary Schr\"odinger equation with
no driving. We reproduce these unusual spectral features by solving numerically
the full master equation for a steady-state and attribute them to an
Autler-Townes-like effect in which a single tone is simultaneously dressing the
system and probing the transitions between new eigenstates. We show that it is
possible to find analytically the exact frequencies at which the satellite
spectral lines appear by solving self-consistent equations in the rotating
frame. Our approach agrees well with both the experiment and the numerical
simulation.
|
[{'version': 'v1', 'created': 'Mon, 27 Jan 2020 14:04:50 GMT'}
{'version': 'v2', 'created': 'Fri, 5 Jun 2020 07:05:36 GMT'}]
|
2020-07-15
|
[array(['Fedorov', 'G. P.', ''], dtype=object)
array(['Yursa', 'V. B.', ''], dtype=object)
array(['Efimov', 'A. E.', ''], dtype=object)
array(['Shiianov', 'K. I.', ''], dtype=object)
array(['Dmitriev', 'A. Yu.', ''], dtype=object)
array(['Rodionov', 'I. A.', ''], dtype=object)
array(['Dobronosova', 'A. A.', ''], dtype=object)
array(['Moskalev', 'D. O.', ''], dtype=object)
array(['Pishchimova', 'A. A.', ''], dtype=object)
array(['Malevannaya', 'E. I.', ''], dtype=object)
array(['Astafiev', 'O. V.', ''], dtype=object)]
|
16,730 |
hep-ex/0607111
|
Thorsten Brandt
|
The BABAR Collaboration, B. Aubert, et al
|
Measurement of the Ratio ${\cal B}\xspace(\B^+ \to X e \nu)$ / ${\cal
B}\xspace(\B^0 \to X e \nu)
|
9 pages, 4 postscript figues. submitted to Phys. Rev. D (Rapid
Communications)
|
Phys.Rev.D74:091105,2006
|
10.1103/PhysRevD.74.091105
|
BABAR-PUB-06/36, SLAC-PUB-12027
|
hep-ex
| null |
We report measurements of the inclusive electron momentum spectra in decays
of charged and neutral B mesons, and of the ratio of semileptonic branching
fractions ${\cal B}\xspace(\B^+ \to X e \nu)$ and ${\cal B}\xspace(\B^0 \to X e
\nu)$. These were performed on a sample of 231 million $B\kern 0.18em\bar{\kern
-0.18em B}{}\xspace$ events recorded with the \mbox{\slshape
B\kern-0.1em{\smaller A}\kern-0.1em B\kern-0.1em{\smaller A\kern-0.2em R}}
detector at the $\Upsilon{(4S)}\xspace$ resonance. Events are selected by fully
reconstructing a hadronic decay of one $B$ meson and identifying an electron
among the decay products of the recoiling $\Bbar$ meson. We obtain ${\cal
B}\xspace(\Bu \to X e \nu)$/${\cal B}\xspace(\Bz \to X e \nu)$ = $1.084 \pm
0.041_{\mathrm{(stat)}}\xspace\pm 0.025_{\mathrm{(syst)}}\xspace$.
|
[{'version': 'v1', 'created': 'Mon, 31 Jul 2006 19:23:11 GMT'}]
|
2010-03-19
|
[array(['The BABAR Collaboration', '', ''], dtype=object)
array(['Aubert', 'B.', ''], dtype=object)]
|
16,731 |
2208.00066
|
Dan Dalacu
|
Patrick Laferri\`ere, Aria Yin, Edith Yeung, Leila Kusmic, Marek
Korkusinski, Payman Rasekh, David B. Northeast, Sofiane Haffouz, Jean
Lapointe, Philip J. Poole, Robin L. Williams, and Dan Dalacu
|
Approaching transform-limited photons from nanowire quantum dots excited
above-band
| null |
Phys. Rev. B 107, (2023) 15522
|
10.1103/PhysRevB.107.155422
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We demonstrate that, even when employing above-band excitation, photons
emitted from semiconductor quantum dots can have linewidths that approach their
transform-limited values. This is accomplished by using quantum dots embedded
in bottom-up photonic nanowires, an approach which mitigates several potential
mechanisms that can result in linewidth broadening: (i) only a single quantum
dot is present in each device, (ii) dot nucleation proceeds without the
formation of a wetting layer, and (iii) the sidewalls of the photonic nanowire
are comprised not of etched facets, but of epitaxially grown crystal planes.
Using these structures we achieve linewidths of 2x the transform limit,
unprecedented for above-band excitation. We also demonstrate a highly nonlinear
dependence of the linewidth on both excitation power and temperature which can
be described by an independent Boson model that considers both deformation and
piezoelectric exciton-phonon coupling. We find that for sufficiently low
excitation powers and temperatures, the observed excess broadening is not
dominated by phonon dephasing, a surprising result considering the high phonon
occupation that occurs with above-band excitation.
|
[{'version': 'v1', 'created': 'Fri, 29 Jul 2022 20:39:49 GMT'}]
|
2023-05-02
|
[array(['Laferrière', 'Patrick', ''], dtype=object)
array(['Yin', 'Aria', ''], dtype=object)
array(['Yeung', 'Edith', ''], dtype=object)
array(['Kusmic', 'Leila', ''], dtype=object)
array(['Korkusinski', 'Marek', ''], dtype=object)
array(['Rasekh', 'Payman', ''], dtype=object)
array(['Northeast', 'David B.', ''], dtype=object)
array(['Haffouz', 'Sofiane', ''], dtype=object)
array(['Lapointe', 'Jean', ''], dtype=object)
array(['Poole', 'Philip J.', ''], dtype=object)
array(['Williams', 'Robin L.', ''], dtype=object)
array(['Dalacu', 'Dan', ''], dtype=object)]
|
16,732 |
1909.11220
|
Rene-Jean Essiambre
|
Ren\'e-Jean Essiambre, Roland Ryf, Sjoerd van der Heide, Juan I.
Bonetti, Hanzi Huang, Murali Kodialam, Francisco Javier Garc\'ia-G\'omez,
Ellsworth C. Burrows, Juan C. Alvarado-Zacarias, Rodrigo Amezcua-Correa, Xi
Chen, Nicolas K. Fontaine, Haoshuo Chen
|
First Transmission of a 12D Format Across 3 Coupled Spatial Modes of a
3-Core Coupled-Core Fiber at a Spectral Efficiency of 4 bits/s/Hz
|
4 pages, 4 figures
| null | null | null |
eess.SP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We demonstrate the first transmission of a new twelve-dimensional modulation
format over a three-core coupled-core multicore fiber. The format occupies a
single time slot spread across all three linearly-coupled spatial modes and
shows improved MI and GMI after transmission compared to PDM-QPSK.
|
[{'version': 'v1', 'created': 'Tue, 24 Sep 2019 23:06:13 GMT'}]
|
2019-09-26
|
[array(['Essiambre', 'René-Jean', ''], dtype=object)
array(['Ryf', 'Roland', ''], dtype=object)
array(['van der Heide', 'Sjoerd', ''], dtype=object)
array(['Bonetti', 'Juan I.', ''], dtype=object)
array(['Huang', 'Hanzi', ''], dtype=object)
array(['Kodialam', 'Murali', ''], dtype=object)
array(['García-Gómez', 'Francisco Javier', ''], dtype=object)
array(['Burrows', 'Ellsworth C.', ''], dtype=object)
array(['Alvarado-Zacarias', 'Juan C.', ''], dtype=object)
array(['Amezcua-Correa', 'Rodrigo', ''], dtype=object)
array(['Chen', 'Xi', ''], dtype=object)
array(['Fontaine', 'Nicolas K.', ''], dtype=object)
array(['Chen', 'Haoshuo', ''], dtype=object)]
|
16,733 |
1705.07858
|
Simon Lock
|
Simon J. Lock and Sarah T. Stewart
|
The structure of terrestrial bodies: Impact heating, corotation limits
and synestias
|
Main text: 31 pages, 15 figures. Supporting information: 15 pages, 8
figures
| null |
10.1002/2016JE005239
| null |
astro-ph.EP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
During accretion, terrestrial bodies attain a wide range of thermal and
rotational states, which are accompanied by significant changes in physical
structure (size, shape, pressure and temperature profile, etc.). However,
variations in structure have been neglected in most studies of rocky planet
formation and evolution. Here, we present a new code, HERCULES, that solves for
the equilibrium structure of planets as a series of overlapping
constant-density spheroids. Using HERCULES and a smoothed particle
hydrodynamics code, we show that Earth-like bodies display a dramatic range of
morphologies. For any rotating planetary body, there is a thermal limit beyond
which the rotational velocity at the equator intersects the Keplerian orbital
velocity. Beyond this corotation limit (CoRoL), a hot planetary body forms a
structure, which we name a synestia, with a corotating inner region connected
to a disk-like outer region. By analyzing calculations of giant impacts and
models of planet formation, we show that typical rocky planets are
substantially vaporized multiple times during accretion. For the expected
angular momentum of growing planets, a large fraction of post-impact bodies
will exceed the CoRoL and form synestias. The common occurrence of hot,
rotating states during accretion has major implications for planet formation
and the properties of the final planets. In particular, the structure of
post-impact bodies influences the physical processes that control accretion,
core formation and internal evolution. Synestias also lead to new mechanisms
for satellite formation. Finally, the wide variety of possible structures for
terrestrial bodies also expands the mass-radius range for rocky exoplanets.
|
[{'version': 'v1', 'created': 'Mon, 22 May 2017 17:00:56 GMT'}]
|
2017-05-23
|
[array(['Lock', 'Simon J.', ''], dtype=object)
array(['Stewart', 'Sarah T.', ''], dtype=object)]
|
16,734 |
1510.03567
|
Georg Nawratil
|
Georg Nawratil
|
On the line-symmetry of self-motions of linear pentapods
|
16 pages, 7 figures
| null | null | null |
cs.RO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that all self-motions of pentapods with linear platform of Type 1 and
Type 2 can be generated by line-symmetric motions. Thus this paper closes a gap
between the more than 100 year old works of Duporcq and Borel and the extensive
study of line-symmetric motions done by Krames in the 1930's. As a consequence
we also get a new solution set for the Borel Bricard problem. Moreover we
discuss the reality of self-motions and give a sufficient condition for the
design of linear pentapods of Type 1 and Type 2, which have a self-motion free
workspace.
|
[{'version': 'v1', 'created': 'Tue, 13 Oct 2015 08:11:15 GMT'}
{'version': 'v2', 'created': 'Tue, 1 Dec 2015 10:36:32 GMT'}]
|
2015-12-02
|
[array(['Nawratil', 'Georg', ''], dtype=object)]
|
16,735 |
hep-ph/0511083
|
Adam Szczepaniak
|
Adam P. Szczepaniak and Pawel Krupinski
|
Coulomb energy and gluon distribution in the presence of static sources
|
14 pages, 11 figures
|
Phys.Rev. D73 (2006) 034022
|
10.1103/PhysRevD.73.034022
| null |
hep-ph
| null |
We compute the energy of the ground state and a low lying excitation of the
gluonic field in the presence of static quark -anti-quark ($\qq$) sources. We
show that for separation between the sources less then a few fm the gluonic
ground state of the static $\qq$ system can be well described in terms of a
mean field wave functional with the excited states corresponding to a single
quasi-particle excitation of the gluon field. We also discuss the role of many
particle excitations relevant for large separation between sources.
|
[{'version': 'v1', 'created': 'Tue, 8 Nov 2005 00:08:33 GMT'}]
|
2009-11-11
|
[array(['Szczepaniak', 'Adam P.', ''], dtype=object)
array(['Krupinski', 'Pawel', ''], dtype=object)]
|
16,736 |
2106.05833
|
Luc Pronzato
|
Amaya Nogales G\'omez, Luc Pronzato, Maria-Jo\~ao Rendas
|
Incremental space-filling design based on coverings and spacings:
improving upon low discrepancy sequences
|
28 pages, 13 figures
| null | null | null |
cs.DS stat.ME
|
http://creativecommons.org/licenses/by/4.0/
|
The paper addresses the problem of defining families of ordered sequences
$\{x_i\}_{i\in N}$ of elements of a compact subset $X$ of $R^d$ whose prefixes
$X_n=\{x_i\}_{i=1}^{n}$, for all orders $n$, have good space-filling properties
as measured by the dispersion (covering radius) criterion. Our ultimate aim is
the definition of incremental algorithms that generate sequences $X_n$ with
small optimality gap, i.e., with a small increase in the maximum distance
between points of $X$ and the elements of $X_n$ with respect to the optimal
solution $X_n^\star$. The paper is a first step in this direction, presenting
incremental design algorithms with proven optimality bound for one-parameter
families of criteria based on coverings and spacings that both converge to
dispersion for large values of their parameter. The examples presented show
that the covering-based method outperforms state-of-the-art competitors,
including coffee-house, suggesting that it inherits from its guaranteed 50\%
optimality gap.
|
[{'version': 'v1', 'created': 'Wed, 9 Jun 2021 09:30:40 GMT'}]
|
2021-06-11
|
[array(['Gómez', 'Amaya Nogales', ''], dtype=object)
array(['Pronzato', 'Luc', ''], dtype=object)
array(['Rendas', 'Maria-João', ''], dtype=object)]
|
16,737 |
2005.02225
|
Alexander Zhidenko
|
R. A. Konoplya and A. Zhidenko
|
4D Einstein-Lovelock black holes: Hierarchy of orders in curvature
|
8 pages, 1 ancillary Mathematica(R) notebook
|
Phys. Lett. B807 (2020) 135607
|
10.1016/j.physletb.2020.135607
| null |
gr-qc hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The Einstein-Lovelock theory contains an infinite series of corrections to
the Einstein term with an increasing power of the curvature. It is well-known
that for large black holes the lowest (Gauss-Bonnet) term is the dominant one,
while for smaller black holes higher curvature corrections become important. We
will show that if one is limited by positive values of the coupling constants,
then the dynamical instability of black holes serves as an effective cut-off of
influence of higher curvature corrections in the 4D Einstein-Lovelock approach:
the higher is the order of the Lovelock term, the smaller is the maximal value
of the coupling constant allowing for stability, so that effectively only a
first few orders can deform the observable values seemingly. For negative
values of coupling constants this is not so, and, despite some suppression of
higher order terms also occurs due to the decreasing threshold values of the
coupling constant, this does not lead to an noticeable opportunity to neglect
higher order corrections. In the case a lot of orders of Lovelock theory are
taken into account, so that the black-hole solution depends on a great number
of coupling constants, we propose a compact description of it in terms of only
two or three parameters encoding all the observable values.
|
[{'version': 'v1', 'created': 'Sun, 3 May 2020 14:34:11 GMT'}
{'version': 'v2', 'created': 'Fri, 10 Jul 2020 15:45:26 GMT'}]
|
2020-07-13
|
[array(['Konoplya', 'R. A.', ''], dtype=object)
array(['Zhidenko', 'A.', ''], dtype=object)]
|
16,738 |
2208.07300
|
Hung Viet Chu Mr
|
Hung Viet Chu
|
Strong Partially Greedy Bases with Respect to an Arbitrary Sequence
|
56 pages. Comments are welcome
| null | null | null |
math.FA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
For Schauder bases, Dilworth et al. introduced and characterized the
partially greedy property, which is strictly weaker than the (almost) greedy
property. Later, Berasategui et al. defined and studied the strong partially
greedy property for general bases. Let $\mathbf n$ be any strictly increasing
sequence of positive integers. In this paper, we define the strong partially
greedy property with respect to $\mathbf n$, called the ($\mathbf n$, strong
partially greedy) property. We give characterizations of this new property,
study relations among ($\mathbf n$, strong partially greedy) properties for
different sequences $\mathbf n$, establish Lebesgue-type inequalities for the
($\mathbf n$, strong partially greedy) parameter, investigate ($\mathbf n$,
strong partially greedy) bases with gaps, and weighted ($\mathbf n$, strong
partially greedy) bases, to name a few. Furthermore, we introduce the ($\mathbf
n$, almost greedy) property and equate the property to a strengthening of the
($\mathbf n$, strong partially greedy) property. This paper can be viewed both
as a survey of recent results regarding strong partially greedy bases and as a
natural and nontrivial extension of these results to an arbitrary sequence
instead of $\mathbb{N}$.
|
[{'version': 'v1', 'created': 'Wed, 10 Aug 2022 16:30:34 GMT'}]
|
2022-08-16
|
[array(['Chu', 'Hung Viet', ''], dtype=object)]
|
16,739 |
1609.07772
|
J. G. Wolff
|
J Gerard Wolff
|
Commonsense Reasoning, Commonsense Knowledge, and The SP Theory of
Intelligence
| null | null | null | null |
cs.AI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This paper describes how the "SP Theory of Intelligence" with the "SP
Computer Model", outlined in an Appendix, may throw light on aspects of
commonsense reasoning (CSR) and commonsense knowledge (CSK), as discussed in
another paper by Ernest Davis and Gary Marcus (DM). In four main sections, the
paper describes: 1) The main problems to be solved; 2) Other research on CSR
and CSK; 3) Why the SP system may prove useful with CSR and CSK 4) How examples
described by DM may be modelled in the SP system. With regard to successes in
the automation of CSR described by DM, the SP system's strengths in
simplification and integration may promote seamless integration across these
areas, and seamless integration of those area with other aspects of
intelligence. In considering challenges in the automation of CSR described by
DM, the paper describes in detail, with examples of SP-multiple-alignments. how
the SP system may model processes of interpretation and reasoning arising from
the horse's head scene in "The Godfather" film. A solution is presented to the
'long tail' problem described by DM. The SP system has some potentially useful
things to say about several of DM's objectives for research in CSR and CSK.
|
[{'version': 'v1', 'created': 'Sun, 25 Sep 2016 16:48:16 GMT'}
{'version': 'v2', 'created': 'Sat, 4 Aug 2018 10:42:51 GMT'}]
|
2018-08-07
|
[array(['Wolff', 'J Gerard', ''], dtype=object)]
|
16,740 |
2208.05008
|
Shaohong Zhong
|
Shaohong Zhong, Andrea Scarinci, Alice Cicirello
|
Natural Language Processing for Systems Engineering: Automatic
Generation of Systems Modelling Language Diagrams
|
29 pages, 5 figures
| null |
10.1016/j.knosys.2022.110071
| null |
cs.CL
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
The design of complex engineering systems is an often long and articulated
process that highly relies on engineers' expertise and professional judgment.
As such, the typical pitfalls of activities involving the human factor often
manifest themselves in terms of lack of completeness or exhaustiveness of the
analysis, inconsistencies across design choices or documentation, as well as an
implicit degree of subjectivity. An approach is proposed to assist systems
engineers in the automatic generation of systems diagrams from unstructured
natural language text. Natural Language Processing (NLP) techniques are used to
extract entities and their relationships from textual resources (e.g.,
specifications, manuals, technical reports, maintenance reports) available
within an organisation, and convert them into Systems Modelling Language
(SysML) diagrams, with particular focus on structure and requirement diagrams.
The intention is to provide the users with a more standardised, comprehensive
and automated starting point onto which subsequently refine and adapt the
diagrams according to their needs. The proposed approach is flexible and
open-domain. It consists of six steps which leverage open-access tools, and it
leads to an automatic generation of SysML diagrams without intermediate
modelling requirement, but through the specification of a set of parameters by
the user. The applicability and benefits of the proposed approach are shown
through six case studies having different textual sources as inputs, and
benchmarked against manually defined diagram elements.
|
[{'version': 'v1', 'created': 'Tue, 9 Aug 2022 19:20:33 GMT'}
{'version': 'v2', 'created': 'Sat, 19 Nov 2022 12:23:18 GMT'}]
|
2022-11-22
|
[array(['Zhong', 'Shaohong', ''], dtype=object)
array(['Scarinci', 'Andrea', ''], dtype=object)
array(['Cicirello', 'Alice', ''], dtype=object)]
|
16,741 |
2103.01149
|
Jens Schneider
|
Jens Schneider, Marco Agus
|
Reflections on the Clinical Acceptance of Artificial Intelligence
|
This is the authors' preprint of a chapter accepted for publication
in "Multiple Perspectives on Artificial Intelligence in Healthcare", M.
Househ, E. Borycki, A. Kushniruk (Eds.), Springer, 2021, ISBN
978-3-030-67303-1, url: https://www.springer.com/gp/book/9783030673024, to
appear. For the final and definitive version, kindly refer to above reference
| null | null | null |
cs.CY
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this chapter, we reflect on the use of Artificial Intelligence (AI) and
its acceptance in clinical environments. We develop a general view of
hindrances for clinical acceptance in the form of a pipeline model combining AI
and clinical practise. We then link each challenge to the relevant stage in the
pipeline and discuss the necessary requirements in order to overcome each
challenge. We complement this discussion with an overview of opportunities for
AI, which we currently see at the periphery of clinical workflows.
|
[{'version': 'v1', 'created': 'Mon, 1 Mar 2021 17:34:09 GMT'}]
|
2021-03-02
|
[array(['Schneider', 'Jens', ''], dtype=object)
array(['Agus', 'Marco', ''], dtype=object)]
|
16,742 |
2102.13215
|
Murod Bahovadinov
|
M. S. Bahovadinov, D. V. Kurlov, B. L. Altshuler, G. V. Shlyapnikov
|
Many-body localization of 1D disordered impenetrable two-component
fermions
| null | null |
10.1140/epjd/s10053-022-00440-4
| null |
cond-mat.dis-nn
|
http://creativecommons.org/licenses/by/4.0/
|
We study effects of disorder on eigenstates of 1D two-component fermions with
infinitely strong Hubbard repulsion. We demonstrate that the spin-independent
(potential) disorder reduces the problem to the one-particle Anderson
localization taking place at arbitrarily weak disorder. In contrast, a random
magnetic field can cause reentrant many-body localization-delocalization
transitions. Surprisingly weak magnetic field destroys one-particle
localization caused by not too strong potential disorder, whereas at much
stronger fields the states are many-body localized. We present numerical
support of these conclusions.
|
[{'version': 'v1', 'created': 'Thu, 25 Feb 2021 22:54:01 GMT'}
{'version': 'v2', 'created': 'Tue, 30 Mar 2021 17:13:53 GMT'}]
|
2022-07-13
|
[array(['Bahovadinov', 'M. S.', ''], dtype=object)
array(['Kurlov', 'D. V.', ''], dtype=object)
array(['Altshuler', 'B. L.', ''], dtype=object)
array(['Shlyapnikov', 'G. V.', ''], dtype=object)]
|
16,743 |
math/9804053
|
Alexander Isaev
|
V. V. Ezhov, A. V. Isaev, G. Schmalz
|
Invariants of elliptic and hyperbolic CR-structures of codimension 2
|
42 pages, see also
http://wwwmaths.anu.edu.au/research.reports/97mrr.html
| null | null |
MRR97-049
|
math.CV
| null |
We reduce CR-structures on smooth elliptic and hyperbolic manifolds of
CR-codimension 2 to parallelisms thus solving the problem of global equivalence
for such manifolds. The parallelism that we construct is defined on a sequence
of two principal bundles over the manifold, takes values in the Lie algebra of
infinitesimal automorphisms of the quadric corresponding to the Levi form of
the manifold, and behaves ``almost'' like a Cartan connection. The construction
is explicit and allows us to study the properties of the parallelism as well as
those of its curvature form. It also leads to a natural class of ``semi-flat''
manifolds for which the two bundles reduce to a single one and the parallelism
turns into a true Cartan connection. In addition, for real-analytic manifolds
we describe certain local normal forms that do not require passing to bundles,
but in many ways agree with the structure of the parallelism.
|
[{'version': 'v1', 'created': 'Thu, 9 Apr 1998 00:37:30 GMT'}]
|
2007-05-23
|
[array(['Ezhov', 'V. V.', ''], dtype=object)
array(['Isaev', 'A. V.', ''], dtype=object)
array(['Schmalz', 'G.', ''], dtype=object)]
|
16,744 |
1905.01169
|
Roman Avdeev
|
Roman Avdeev
|
Degenerations of spherical subalgebras and spherical roots
|
v2: 45 pages, revised extended version with new Section 6 containing
an optimization of the initial algorithm
| null | null | null |
math.AG math.GR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We obtain several structure results for a class of spherical subgroups of
connected reductive complex algebraic groups that extends the class of strongly
solvable spherical subgroups. Based on these results, we construct certain
one-parameter degenerations of the Lie algebras corresponding to such
subgroups. As an application, we exhibit explicit algorithms for computing the
set of spherical roots of such a spherical subgroup.
|
[{'version': 'v1', 'created': 'Fri, 3 May 2019 13:04:41 GMT'}
{'version': 'v2', 'created': 'Wed, 18 Dec 2019 14:27:21 GMT'}]
|
2019-12-19
|
[array(['Avdeev', 'Roman', ''], dtype=object)]
|
16,745 |
2304.04105
|
Jared McDonald
|
Jared McDonald, Michael R. von Spakovsky, William T. Reynolds Jr
|
Predicting Polymer Brush Behavior in Solvents using the
Steepest-Entropy-Ascent Quantum Thermodynamic Framework
| null | null | null | null |
cond-mat.soft cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The steepest-entropy-ascent quantum thermodynamic (SEAQT) framework is
utilized to study the effects of temperature on polymer brushes. The brushes
are represented by a discrete energy spectrum and energy degeneracies obtained
through the Replica-Exchange Wang-Landau algorithm. The SEAQT equation of
motion is applied to the energy landscape to establish a unique kinetic path
from an initial thermodynamic state to a stable equilibrium state. The kinetic
path describes the brush's evolution in state space as it interacts with a
thermal reservoir. The predicted occupation probabilities along the kinetic
path are used to determine expected thermodynamic and structural properties.
The brush density of a polystyrene brush in cyclohexane solvent is predicted
using the equation of motion and demonstrates qualitative agreement with
experimental density profiles. The Flory-Huggins parameter chosen to describe
brush-solvent interactions affects the solvent distribution in the brush but
has minimal impact on the brush density. Three types of non-equilibrium kinetic
paths are considered, i.e., a heating path, a cooling path, and a
heating-cooling path, differing in their entropy production, with properties
such as tortuosity, radius of gyration, brush density, solvent density, and
brush chain conformations calculated for each path.
|
[{'version': 'v1', 'created': 'Sat, 8 Apr 2023 21:42:28 GMT'}]
|
2023-04-11
|
[array(['McDonald', 'Jared', ''], dtype=object)
array(['von Spakovsky', 'Michael R.', ''], dtype=object)
array(['Reynolds', 'William T.', 'Jr'], dtype=object)]
|
16,746 |
1703.01676
|
Robert McDougall Kerr
|
Robert M. Kerr
|
Trefoil knot structure during reconnection
|
14 figure files, 10 figures, 23 pages. arXiv admin note: text overlap
with arXiv:1610.00398
| null | null | null |
physics.flu-dyn
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Three-dimensional images of evolving numerical trefoil vortex knots are used
to study the growth and decay of the enstrophy and helicity. Negative helicity
density ($h<0$) plays several roles. First, sheets of oppositely-signed
helicity dissipation of equal magnitude on either side of the maximum of the
enstrophy dissipation allow the global helicity ${\cal H}$ to be preserved
through the first reconnection, as suggested theoretically (Laing et al 2015)
and observed experimentally (Scheeler et al. 2014). Next, to maintain the
growth of the enstrophy and positive helicity within the trefoil while ${\cal
H}$ is preserved, $h<0$ forms in the outer parts of the trefoil so long as the
periodic boundaries do not interfere. To prevent that, the domain size $\ell$
is increased as the viscosity $\nu\to0$. Combined, this allows two sets of
trefoils to form a new scaling regime with linearly decreasing
$(\sqrt{\nu}Z(t))^{-1/2}$ up to common $\nu$-independent times $t_x$ that the
graphics show is when the first reconnection ends. During this phase there is
good correspondence between the evolution of the simulated vortices and the
reconnecting experimental trefoil of Kleckner and Irvine (2013) when time is
scaled by their respective nonlinear timescales $t_f$. The timescales $t_f$ are
based upon by the radii $r_f$ of the trefoils and their circulations $\Gamma$,
so long as the strong camber of the experimental hydrofoil models is used to
correct the published experimental circulations $\Gamma$ that use only the
flat-plate approximation.
|
[{'version': 'v1', 'created': 'Sun, 5 Mar 2017 22:20:07 GMT'}
{'version': 'v2', 'created': 'Sun, 21 May 2017 15:04:43 GMT'}
{'version': 'v3', 'created': 'Fri, 26 May 2017 13:02:25 GMT'}]
|
2017-05-29
|
[array(['Kerr', 'Robert M.', ''], dtype=object)]
|
16,747 |
2006.03994
|
Shirin Tahmasebi
|
Shirin Tahmasebi, Jafar Habibi and Abolhassan Shamsaie
|
A Scalable Architecture for Monitoring IoT Devices Using Ethereum and
Fog Computing
| null | null | null | null |
cs.DC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
With the recent considerable developments in the Internet of Things (IoT),
billions of resource-constrained devices are interconnected through the
internet. Monitoring this huge number of IoT devices that are heterogeneous in
terms of underlying communication protocols and data format is challenging. The
majority of existing IoT device monitoring solutions heavily rely on
centralized architectures. Since using centralized architectures comes at the
expense of trusting an authority, it has several inherent drawbacks, including
vulnerability to security attacks, lack of data privacy, and unauthorized data
manipulation. Hence, a new decentralized approach is crucial to remedy these
drawbacks. One of the most promising technologies which is widely used to
provide decentralization is blockchain. Additionally, to ease the burden of
communication overhead and computational power on resource-constrained IoT
devices, fog computing can be exploited to decrease communication latency and
provide better network scalability.
In this paper, we propose a scalable blockchain-based architecture for
monitoring IoT devices using fog computing. To demonstrate the feasibility and
usability of the proposed solution, we have implemented a proof-of-concept
prototype, leveraging Ethereum smart contracts. Finally, a comprehensive
evaluation is conducted. The evaluation results indicate that the proposed
solution is significantly scalable and compatible with resource-constrained IoT
devices.
|
[{'version': 'v1', 'created': 'Sat, 6 Jun 2020 23:13:56 GMT'}
{'version': 'v2', 'created': 'Wed, 11 Nov 2020 05:46:48 GMT'}]
|
2020-11-12
|
[array(['Tahmasebi', 'Shirin', ''], dtype=object)
array(['Habibi', 'Jafar', ''], dtype=object)
array(['Shamsaie', 'Abolhassan', ''], dtype=object)]
|
16,748 |
1702.03889
|
Alberto Arabia
|
Alberto Arabia
|
On Equivariant Poincar\'e Duality, Gysin Morphisms and Euler Classes
|
80 pages, 4 figures
| null | null | null |
math.AT math.GR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The aim of these notes, originally intended as an appendix to a book on the
foundations of equivariant cohomology, is to set up the formalism of the
$G$-equivariant Poincar\'e duality for oriented $G$-manifolds, for any
connected compact Lie group $G$, following the work of J.-L. Brylinski leading
to the spectral sequence $$\mathop{\rm Extgr}\nolimits_{H_G}(H_{G,\rm c}
(M),H_G)\Rightarrow H_{G}(M)[d_{M}]\,.$$ The equivariant Gysin functor
$(\_)_!:=\Omega_{G}(\_)\in\mathcal D^{+}(\mathord{\rm DGM}(H_{G}))$ (resp.
$(\_)_{*}:=\Omega_{G,\rm c}(\_)$) is then defined in the category of oriented
$G$-manifolds and proper maps (resp. unrestricted maps) with values in the
derived category of the category of differential graded modules over $H_{G}$,
as the composition of the Cartan complex of equivariant differential forms
functor $\Omega_{G,\rm c}(\_)$ (resp. $\Omega_{G}(\_)$) with the duality
functor $I\mkern-4.5muR\,{\rm Hom}_{H_{G}}^{\bullet}(\_,H_{G})$ and the
equivariant Poincar\'e adjunction $I\mkern-4.5muD_{G} (M):\Omega_{G}
(M)[d_{M}]\to I\mkern-4.5muR\,{\rm Hom}_{H_{G}}^{\bullet}(\Omega_{G,\rm c}
(M),H_{G} )$ (resp. $I\mkern-4.5muD_{G}' (M):\Omega_{G,\rm c} (M)[d_{M}]\to
I\mkern-4.5muR\,{\rm Hom}_{H_{G}}^{\bullet}(\Omega_{G} (M),H_{G} )$).
Equivariant Euler classes are next introduced for any closed embedding
$i:N\subseteq M$ as ${\rm Eu}_{G}(N,M):=i^{*}i_{!}(1)$ where
$i^{*}i_{!}:H_{G}(N)\to H_{G}(N)$ is the push-pull operator. Some localization
and fixed point theorems finish the notes. The idea of introducing Gysin
morphisms through an equivariant Poincar\'e duality formalism \`a la
Grothendieck-Verdier has many theoretical advantages and is somewhat uncommon
in the equivariant setting, warranting publication of these notes.
|
[{'version': 'v1', 'created': 'Mon, 13 Feb 2017 17:18:25 GMT'}
{'version': 'v2', 'created': 'Tue, 14 Feb 2017 16:49:28 GMT'}
{'version': 'v3', 'created': 'Thu, 16 Feb 2017 16:32:33 GMT'}
{'version': 'v4', 'created': 'Mon, 27 Feb 2017 18:44:59 GMT'}
{'version': 'v5', 'created': 'Thu, 2 Mar 2017 10:43:05 GMT'}
{'version': 'v6', 'created': 'Fri, 10 Nov 2017 04:17:04 GMT'}]
|
2017-11-13
|
[array(['Arabia', 'Alberto', ''], dtype=object)]
|
16,749 |
1508.02267
|
Marat Rovinsky
|
M. Rovinsky
|
An analogue of Hilbert's Theorem 90 for infinite symmetric groups
|
14 pages, Added: a description of the Gabriel spectrum of the
category of smooth $k(S)$-semilinear representations of the symmetric group
of an infinite set $S$
| null | null | null |
math.RT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $K$ be a field and $G$ be a group of its automorphisms. If $G$ is
precompact then $K$ is a generator of the category of smooth (i.e. with open
stabilizers) $K$-semilinear representations of $G$. There are non-semisimple
smooth semilinear representations of $G$ over $K$ if $G$ is not precompact.
In this note the smooth semilinear representations of the group $G$ of all
permutations of an infinite set $S$ are studied. Let $k$ be a field and $k(S)$
be the field freely generated over $k$ by the set $S$ (endowed with the natural
$G$-action). One of principal results describes the Gabriel spectrum of the
category of smooth $k(S)$-semilinear representations of $G$.
It is also shown, in particular, that (i) for any smooth $G$-field $K$ any
smooth finitely generated $K$-semilinear representation of $G$ is noetherian,
(ii) for any $G$-invariant subfield $K$ in the field $k(S)$, the object $k(S)$
is an injective cogenerator of the category of smooth $K$-semilinear
representations of $G$, (iii) if $K\subset k(S)$ is the subfield of rational
homogeneous functions of degree 0 then there is a one-dimensional
$K$-semilinear representation of $G$, whose integral tensor powers form a
system of injective cogenerators of the category of smooth $K$-semilinear
representations of $G$, (iv) if $K\subset k(S)$ is the subfield generated over
$k$ by $x-y$ for all $x,y\in S$ then there is a unique isomorphism class of
indecomposable smooth $K$-semilinear representations of $G$ of each given
finite length.
|
[{'version': 'v1', 'created': 'Mon, 10 Aug 2015 14:49:18 GMT'}
{'version': 'v2', 'created': 'Fri, 11 Mar 2016 19:38:12 GMT'}
{'version': 'v3', 'created': 'Sun, 10 Apr 2016 19:55:09 GMT'}
{'version': 'v4', 'created': 'Thu, 26 May 2016 11:56:14 GMT'}
{'version': 'v5', 'created': 'Sat, 30 Jul 2016 21:51:36 GMT'}
{'version': 'v6', 'created': 'Mon, 6 Mar 2017 18:27:16 GMT'}]
|
2017-03-07
|
[array(['Rovinsky', 'M.', ''], dtype=object)]
|
16,750 |
2210.16213
|
Laura Geatti
|
Laura Geatti and Andrea Iannuzzi
|
Geometry of Hermitian symmetric spaces under the action of a maximal
unipotent group
| null | null | null | null |
math.CV
|
http://creativecommons.org/licenses/by/4.0/
|
Let $\,G/K\,$ be a non-compact irreducible Hermitian symmetric space of rank
$\,r\,$ and let $\,NAK\,$ be an Iwasawa decomposition of $\,G$. By the polydisc
theorem, $\,AK/K\,$ can be regarded as the base of an $\,r$-dimensional tube
domain holomorphically embedded in $\,G/K$. As every $\,N$-orbit in $\,G/K\,$
intersects $\,AK/K$ in a single point, there is a one-to-one correspondence
between $\,N$-invariant domains in $\,G/K\,$ and tube domains in the product of
$\,r\,$ copies of the upper half-plane in $\,\C$. In this setting we prove a
generalization of Bochner's tube theorem. Namely, an $\,N$-invariant domain
$\,D\,$ in $\,G/K\,$ is Stein if and only if the base $\,\Omega\,$ of the
associated tube domain is convex and ``cone invariant". We also obtain a
precise description of the envelope of holomorphy of an arbitrary
holomorphically separable $\,N$-invariant domain over $\,G/K$.
|
[{'version': 'v1', 'created': 'Fri, 28 Oct 2022 15:36:53 GMT'}]
|
2022-10-31
|
[array(['Geatti', 'Laura', ''], dtype=object)
array(['Iannuzzi', 'Andrea', ''], dtype=object)]
|
16,751 |
2305.09098
|
Taiqiang Wu
|
Taiqiang Wu, Cheng Hou, Zhe Zhao, Shanshan Lao, Jiayi Li, Ngai Wong,
Yujiu Yang
|
Weight-Inherited Distillation for Task-Agnostic BERT Compression
|
9 pages, 4 figures
| null | null | null |
cs.CL cs.LG
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
Knowledge Distillation (KD) is a predominant approach for BERT compression.
Previous KD-based methods focus on designing extra alignment losses for the
student model to mimic the behavior of the teacher model. These methods
transfer the knowledge in an indirect way. In this paper, we propose a novel
Weight-Inherited Distillation (WID), which directly transfers knowledge from
the teacher. WID does not require any additional alignment loss and trains a
compact student by inheriting the weights, showing a new perspective of
knowledge distillation. Specifically, we design the row compactors and column
compactors as mappings and then compress the weights via structural
re-parameterization. Experimental results on the GLUE and SQuAD benchmarks show
that WID outperforms previous state-of-the-art KD-based baselines. Further
analysis indicates that WID can also learn the attention patterns from the
teacher model without any alignment loss on attention distributions.
|
[{'version': 'v1', 'created': 'Tue, 16 May 2023 01:51:22 GMT'}]
|
2023-05-17
|
[array(['Wu', 'Taiqiang', ''], dtype=object)
array(['Hou', 'Cheng', ''], dtype=object)
array(['Zhao', 'Zhe', ''], dtype=object)
array(['Lao', 'Shanshan', ''], dtype=object)
array(['Li', 'Jiayi', ''], dtype=object)
array(['Wong', 'Ngai', ''], dtype=object)
array(['Yang', 'Yujiu', ''], dtype=object)]
|
16,752 |
0809.0430
|
Adan Cabello
|
Piotr Badziag, Ingemar Bengtsson, Adan Cabello, Itamar Pitowsky
|
Universality of state-independent violation of correlation inequalities
for noncontextual theories
|
REVTeX4, 4 pages
|
Phys. Rev. Lett. 103 (2009) 050401
|
10.1103/PhysRevLett.103.050401
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that the state-independent violation of inequalities for
noncontextual hidden variable theories introduced in [Phys. Rev. Lett. 101,
210401 (2008)] is universal, i.e., occurs for any quantum mechanical system in
which noncontextuality is meaningful. We describe a method to obtain
state-independent violations for any system of dimension d > 2. This
universality proves that, according to quantum mechanics, there are no
"classical" states.
|
[{'version': 'v1', 'created': 'Tue, 2 Sep 2008 12:50:41 GMT'}
{'version': 'v2', 'created': 'Tue, 28 Jul 2009 15:29:43 GMT'}]
|
2009-07-28
|
[array(['Badziag', 'Piotr', ''], dtype=object)
array(['Bengtsson', 'Ingemar', ''], dtype=object)
array(['Cabello', 'Adan', ''], dtype=object)
array(['Pitowsky', 'Itamar', ''], dtype=object)]
|
16,753 |
2010.01785
|
Yuan Chen
|
Yuwei Li, Shouling Ji, Yuan Chen, Sizhuang Liang, Wei-Han Lee, Yueyao
Chen, Chenyang Lyu, Chunming Wu, Raheem Beyah, Peng Cheng, Kangjie Lu, Ting
Wang
|
UNIFUZZ: A Holistic and Pragmatic Metrics-Driven Platform for Evaluating
Fuzzers
|
To appear in the Proceedings of the 30th USENIX Security Symposium
(USENIX Security 2021)
| null | null | null |
cs.CR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A flurry of fuzzing tools (fuzzers) have been proposed in the literature,
aiming at detecting software vulnerabilities effectively and efficiently. To
date, it is however still challenging to compare fuzzers due to the
inconsistency of the benchmarks, performance metrics, and/or environments for
evaluation, which buries the useful insights and thus impedes the discovery of
promising fuzzing primitives. In this paper, we design and develop UNIFUZZ, an
open-source and metrics-driven platform for assessing fuzzers in a
comprehensive and quantitative manner. Specifically, UNIFUZZ to date has
incorporated 35 usable fuzzers, a benchmark of 20 real-world programs, and six
categories of performance metrics. We first systematically study the usability
of existing fuzzers, find and fix a number of flaws, and integrate them into
UNIFUZZ. Based on the study, we propose a collection of pragmatic performance
metrics to evaluate fuzzers from six complementary perspectives. Using UNIFUZZ,
we conduct in-depth evaluations of several prominent fuzzers including AFL [1],
AFLFast [2], Angora [3], Honggfuzz [4], MOPT [5], QSYM [6], T-Fuzz [7] and
VUzzer64 [8]. We find that none of them outperforms the others across all the
target programs, and that using a single metric to assess the performance of a
fuzzer may lead to unilateral conclusions, which demonstrates the significance
of comprehensive metrics. Moreover, we identify and investigate previously
overlooked factors that may significantly affect a fuzzer's performance,
including instrumentation methods and crash analysis tools. Our empirical
results show that they are critical to the evaluation of a fuzzer. We hope that
our findings can shed light on reliable fuzzing evaluation, so that we can
discover promising fuzzing primitives to effectively facilitate fuzzer designs
in the future.
|
[{'version': 'v1', 'created': 'Mon, 5 Oct 2020 05:25:32 GMT'}]
|
2020-10-06
|
[array(['Li', 'Yuwei', ''], dtype=object)
array(['Ji', 'Shouling', ''], dtype=object)
array(['Chen', 'Yuan', ''], dtype=object)
array(['Liang', 'Sizhuang', ''], dtype=object)
array(['Lee', 'Wei-Han', ''], dtype=object)
array(['Chen', 'Yueyao', ''], dtype=object)
array(['Lyu', 'Chenyang', ''], dtype=object)
array(['Wu', 'Chunming', ''], dtype=object)
array(['Beyah', 'Raheem', ''], dtype=object)
array(['Cheng', 'Peng', ''], dtype=object)
array(['Lu', 'Kangjie', ''], dtype=object)
array(['Wang', 'Ting', ''], dtype=object)]
|
16,754 |
1905.07395
|
Kazuhito Dobashi
|
Kazuhito Dobashi, Tomomi Shimoikura, Nobuhiro Endo, Chisato Takagi,
Fumitaka Nakamura, Yoshito Shimajiri, Jean-Philippe Bernard
|
Interaction between Northern Coal Sack in the Cyg OB 7 cloud complex and
the multiple super nova remnants including HB 21
|
To appear in the Publications of the Astronomical Society of Japan
(PASJ)
| null |
10.1093/pasj/psy122
| null |
astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report possible interaction between multiple super nova remnants (SNRs)
and Northern Coal Sack (NCS) which is a massive clump (~1000 Mo) in the Cyg OB
7 cloud complex and is forming a massive Class 0 object. We performed molecular
observations of the 12CO(J=1-0), 13CO(J=1-0), and C18O(J=1-0) emission lines
using the 45m telescope at the Nobeyama Radio Observatory, and we found that
there are mainly four velocity components at Vlsr=-20, -6, -4, and 10 km/s. The
-6 and -4 km/s components correspond to the systemic velocities of NCS and the
Cygnus OB 7 complex, respectively, and the other velocity components originate
from distinct smaller clouds. Interestingly, there are apparent correlations
and anti-correlations among the spatial distributions of the four components,
suggesting that they are physically interacting with one another. On a larger
scale, we find that a group of small clouds belonging to the -20 and 10 km/s
components are located along two different arcs around some SNRs including HB
21 which has been suggested to be interacting with the Cyg OB 7 cloud complex,
and we also find that NCS is located right at the interface of the arcs. The
small clouds are likely to be the gas swept up by the stellar wind of the
massive stars which created the SNRs. We suggest that the small clouds alined
along the two arcs recently encountered NCS and the massive star formation in
NCS was triggered by the strong interaction with the small clouds.
|
[{'version': 'v1', 'created': 'Fri, 17 May 2019 17:48:17 GMT'}]
|
2020-01-08
|
[array(['Dobashi', 'Kazuhito', ''], dtype=object)
array(['Shimoikura', 'Tomomi', ''], dtype=object)
array(['Endo', 'Nobuhiro', ''], dtype=object)
array(['Takagi', 'Chisato', ''], dtype=object)
array(['Nakamura', 'Fumitaka', ''], dtype=object)
array(['Shimajiri', 'Yoshito', ''], dtype=object)
array(['Bernard', 'Jean-Philippe', ''], dtype=object)]
|
16,755 |
nucl-th/0407075
|
Christian Fuchs
|
Amand Faessler, C. Fuchs, M.I. Krivoruchenko and B.V. Martemyanov
|
Vector meson angular distributions in proton-proton collisions
|
7 pages, 4 eps-figures, to appear in PRC
|
Phys.Rev. C70 (2004) 035211
|
10.1103/PhysRevC.70.035211
| null |
nucl-th
| null |
The resonance model is used to analyze the omega- and phi-meson angular
distributions in proton-proton collisions at sqrt{s} = 2.83 and 2.98 GeV. The
assumption of dominant contributions from N^*(1720)3/2+ and N^*(1900)3/2+
resonances which both have, according to the pi N scattering multichannel
partial-wave analysis and/or quark models predictions, dominant p_{1/2} N-omega
decay modes yields the right pattern of the omega angular distribution at
sqrt{s} = 2.83 GeV. The angular distribution at sqrt{s} = 2.98 GeV can be
reproduced assuming the dominance of N^*(2000)5/2+ and N^*(1900)3/2+. The
experimental phi-meson angular distributions do not shown any asymmetry which
requires the existence of a massive negative-parity spin-half resonance. This
resonance could be identified with the N^*(2090)1/2-.
|
[{'version': 'v1', 'created': 'Thu, 22 Jul 2004 11:49:39 GMT'}]
|
2009-11-10
|
[array(['Faessler', 'Amand', ''], dtype=object)
array(['Fuchs', 'C.', ''], dtype=object)
array(['Krivoruchenko', 'M. I.', ''], dtype=object)
array(['Martemyanov', 'B. V.', ''], dtype=object)]
|
16,756 |
2004.13995
|
Yansheng Liang
|
Yansheng Liang, Zhaojun Wang, Ming Lei
|
Off-axis optical trapping and transverse spinning of metallic
microparticles with a linearly polarized Gaussian beam
|
10 pages, 7 figures, Research article
| null | null | null |
physics.optics physics.app-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Optical trapping of metallic microparticles remains a big challenge because
of the strong scattering and absorption of light by the particles. In the
paper, we report a new mechanism for stable trapping of metallic microparticles
by using a tightly focused linearly polarized Gaussian spot. We theoretically
and experimentally demonstrated that metallic microparticles were confined off
the optical axis by such a trap. In the meanwhile, transverse spinning motion
occurred as a consequence of the asymmetric force field acting on the particle
by the trap. The off-axis trapping and transverse spinning of metallic
microparticles provide new manners for the manipulation of metallic
microparticles. The works reported in this paper are also of significance for a
better understanding of the mechanical interaction between light and metallic
particles.
|
[{'version': 'v1', 'created': 'Wed, 29 Apr 2020 07:23:07 GMT'}]
|
2020-04-30
|
[array(['Liang', 'Yansheng', ''], dtype=object)
array(['Wang', 'Zhaojun', ''], dtype=object)
array(['Lei', 'Ming', ''], dtype=object)]
|
16,757 |
1408.3308
|
Brian K. Heltsley
|
J. P. Alexander, A. Chatterjee, C. Conolly, E. Edwards, M. P.
Ehrlichman, J. W. Flanagan, E. Fontes, B. K. Heltsley, A. Lyndaker, D. P.
Peterson, N. T. Rider, D. L. Rubin, R. Seeley, and J. Shanks
|
Design and performance of coded aperture optical elements for the
CESR-TA x-ray beam size monitor
|
9 pages, 13 figures, 3 tables, submitted to Nucl. Instrum. Meth.
Phys. Res. A
|
Nuclear Inst. and Methods in Physics Research, A (2014), pp.
467-474
|
10.1016/j.nima.2014.09.012
| null |
physics.ins-det physics.acc-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We describe the design and performance of optical elements for an x-ray beam
size monitor (xBSM), a device measuring $e^+$ and $e^-$ beam sizes in the
CESR-TA storage ring. The device can measure vertical beam sizes of
$10-100~\mu$m on a turn-by-turn, bunch-by-bunch basis at $e^\pm$ beam energies
of $\sim2-5~$GeV. X-rays produced by a hard-bend magnet pass through a single-
or multiple-slit (coded aperture) optical element onto a detector. The coded
aperture slit pattern and thickness of masking material forming that pattern
can both be tuned for optimal resolving power. We describe several such optical
elements and show how well predictions of simple models track measured
performances.
|
[{'version': 'v1', 'created': 'Thu, 14 Aug 2014 14:53:38 GMT'}]
|
2014-10-14
|
[array(['Alexander', 'J. P.', ''], dtype=object)
array(['Chatterjee', 'A.', ''], dtype=object)
array(['Conolly', 'C.', ''], dtype=object)
array(['Edwards', 'E.', ''], dtype=object)
array(['Ehrlichman', 'M. P.', ''], dtype=object)
array(['Flanagan', 'J. W.', ''], dtype=object)
array(['Fontes', 'E.', ''], dtype=object)
array(['Heltsley', 'B. K.', ''], dtype=object)
array(['Lyndaker', 'A.', ''], dtype=object)
array(['Peterson', 'D. P.', ''], dtype=object)
array(['Rider', 'N. T.', ''], dtype=object)
array(['Rubin', 'D. L.', ''], dtype=object)
array(['Seeley', 'R.', ''], dtype=object)
array(['Shanks', 'J.', ''], dtype=object)]
|
16,758 |
1705.05662
|
Santanu Parida
|
Santanu Parida, Avinash Patsha, Santanu Bera and Sandip Dhara
|
Spectroscopic investigation of native defects induced electron-phonon
coupling in GaN nanowires
| null |
J. Phys. D: Appl. Phys. 50 (2017) 275103 (7pp)
|
10.1088/1361-6463/aa7402
| null |
cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The integration of advanced optoelectronic properties in nanoscale devices of
group III nitride can be realized by understanding the coupling of charge
carriers with optical excitations in these nanostructures. The native defect
induced electron-phonon coupling in GaN nanowires are reported using various
spectroscopic studies. The GaN nanowires having different native defects are
grown in atmospheric pressure chemical vapor deposition technique. X-ray
photoelectron spectroscopic analysis revealed the variation of Ga/N ratios in
nanowires having possible native defects, with respect to their growth
parameters. The analysis of characteristics features of electron-phonon
coupling in Raman spectra show the variations in carrier density and mobility
with respect to the native defects in unintentionally doped GaN nanowires. The
radiative recombination of donor acceptor pair transitions and the
corresponding LO phonon replicas observed in photoluminescence studies further
emphasize the role of native defects in electron-phonon coupling.
|
[{'version': 'v1', 'created': 'Tue, 16 May 2017 12:05:03 GMT'}]
|
2017-07-11
|
[array(['Parida', 'Santanu', ''], dtype=object)
array(['Patsha', 'Avinash', ''], dtype=object)
array(['Bera', 'Santanu', ''], dtype=object)
array(['Dhara', 'Sandip', ''], dtype=object)]
|
16,759 |
1508.07386
|
Junde Wu
|
Qiang Lei, Weihua Liu, Zhe Liu, Junde Wu
|
Quantum Observable Generalized Orthoalgebras
| null |
Positivity. 2020(24), 663-675
| null | null |
math-ph math.MP
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
Let ${\cal S}(\mathcal{H})$ denote the set of all self-adjoint operators (not
necessarily bounded) on a Hilbert space $\mathcal{H}$, which is the set of all
physical quantities on a quantum system $\mathcal{H}$. We introduce a binary
relation $\bot$ on ${\cal S}(\mathcal{H})$. We show that if $A\bot B$, then $A$
and $B$ are affiliated with some abelian von Neumann algebra. The relation
$\bot$ induces a partial algebraic operation $\oplus$ on ${\cal
S}(\mathcal{H})$. We prove that $({\cal S}({\mathcal{H}}), \bot, \oplus, 0)$ is
a generalized orthoalgebra. This algebra is a generalization of the famous
Birkhoff\,--\,von Neumann quantum logic model. It establishes a mathematical
structure on all physical quantities on $\mathcal{H}$. In particular, we note
that $({\cal S}({\mathcal{H}}), \bot, \oplus, 0)$ has a partial order
$\preceq$, and prove that $A\preceq B$ if and only if $A$ has a value in
$\Delta$ implies that $B$ has a value in $\Delta$ for every Borel set $\Delta$
not containing $0$. Moreover, the existence of the infimum $A\wedge B$ and
supremum $A\vee B$ for $A,B\in \mathcal{S}(\mathcal{H})$ (with respect to
$\preceq$) is studied, and it is shown at the end that the position operator
$Q$ and momentum operator $P$ in the Heisenberg commutation relation satisfy
$Q\wedge P=0$.
|
[{'version': 'v1', 'created': 'Sat, 29 Aug 2015 01:40:01 GMT'}
{'version': 'v2', 'created': 'Thu, 6 Oct 2016 08:33:03 GMT'}
{'version': 'v3', 'created': 'Wed, 12 Oct 2016 01:48:20 GMT'}
{'version': 'v4', 'created': 'Thu, 15 Mar 2018 02:48:45 GMT'}]
|
2021-05-07
|
[array(['Lei', 'Qiang', ''], dtype=object)
array(['Liu', 'Weihua', ''], dtype=object)
array(['Liu', 'Zhe', ''], dtype=object)
array(['Wu', 'Junde', ''], dtype=object)]
|
16,760 |
2305.00553
|
Wenli Zhang
|
Shaodong Wang and Qing Li and Wenli Zhang
|
MD-Manifold: A Medical-Distance-Based Representation Learning Approach
for Medical Concept and Patient Representation
|
The initial version was presented at the 54th Hawaii International
Conference on System Sciences. http://hdl.handle.net/10125/71209
| null | null | null |
cs.LG
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
Effectively representing medical concepts and patients is important for
healthcare analytical applications. Representing medical concepts for
healthcare analytical tasks requires incorporating medical domain knowledge and
prior information from patient description data. Current methods, such as
feature engineering and mapping medical concepts to standardized terminologies,
have limitations in capturing the dynamic patterns from patient description
data. Other embedding-based methods have difficulties in incorporating
important medical domain knowledge and often require a large amount of training
data, which may not be feasible for most healthcare systems. Our proposed
framework, MD-Manifold, introduces a novel approach to medical concept and
patient representation. It includes a new data augmentation approach, concept
distance metric, and patient-patient network to incorporate crucial medical
domain knowledge and prior data information. It then adapts manifold learning
methods to generate medical concept-level representations that accurately
reflect medical knowledge and patient-level representations that clearly
identify heterogeneous patient cohorts. MD-Manifold also outperforms other
state-of-the-art techniques in various downstream healthcare analytical tasks.
Our work has significant implications in information systems research in
representation learning, knowledge-driven machine learning, and using design
science as middle-ground frameworks for downstream explorative and predictive
analyses. Practically, MD-Manifold has the potential to create effective and
generalizable representations of medical concepts and patients by incorporating
medical domain knowledge and prior data information. It enables deeper insights
into medical data and facilitates the development of new analytical
applications for better healthcare outcomes.
|
[{'version': 'v1', 'created': 'Sun, 30 Apr 2023 18:58:32 GMT'}]
|
2023-05-02
|
[array(['Wang', 'Shaodong', ''], dtype=object)
array(['Li', 'Qing', ''], dtype=object)
array(['Zhang', 'Wenli', ''], dtype=object)]
|
16,761 |
2301.11698
|
K Vijaya Dr
|
Kaliyappan Vijaya, Gangadharan Murugusundaramoorthy and Hatun \"Ozlem
G\"uney
|
On $\lambda-$ Pseudo bi-starlike functions related with Fibonacci
numbers
|
11. arXiv admin note: text overlap with arXiv:1810.06216 by other
authors
|
Communications in Mathematics, Volume 32 (2024), Issue 1 (February
14, 2023) cm:10870
|
10.46298/cm.10870
| null |
math.CV
|
http://creativecommons.org/licenses/by/4.0/
|
In this paper we define a new subclass $\lambda$-bi-pseudo-starlike functions
of $\Sigma$ related to shell-like curves connected with Fibonacci numbers and
determine the initial Taylor-Maclaurin coefficients $|a_2|$ and $|a_3|$ for
$f\in\mathcal{PSL}_{\Sigma}^\lambda(\tilde{p}(z)).$ Further we determine the
Fekete-Szeg\"{o} result for the function class
$\mathcal{PSL}_{\Sigma}^\lambda(\tilde{p}(z))$ and for special cases,
corollaries are stated which some of them are new and have not been studied so
far.
|
[{'version': 'v1', 'created': 'Fri, 27 Jan 2023 13:18:39 GMT'}
{'version': 'v2', 'created': 'Mon, 13 Feb 2023 11:04:15 GMT'}]
|
2023-06-22
|
[array(['Vijaya', 'Kaliyappan', ''], dtype=object)
array(['Murugusundaramoorthy', 'Gangadharan', ''], dtype=object)
array(['Güney', 'Hatun Özlem', ''], dtype=object)]
|
16,762 |
1401.7342
|
Warren R. Brown
|
Warren R. Brown, Margaret J. Geller, Scott J. Kenyon (SAO)
|
MMT Hypervelocity Star Survey III: A Complete Survey of Faint B-type
Stars in the Northern Milky Way Halo
|
12 pages, ApJ submitted couple months ago
| null |
10.1088/0004-637X/787/1/89
| null |
astro-ph.SR astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We describe our completed spectroscopic survey for unbound hypervelocity
stars (HVSs) ejected from the Milky Way. Three new discoveries bring the total
number of unbound HVSs to 21. We place new constraints on the nature of HVSs
and on their distances using moderate resolution MMT spectroscopy. Half of the
HVSs are fast rotators; they are certain 2.5-4 Msun main sequence stars at 50 -
120 kpc distances. Correcting for stellar lifetime, our survey implies that
unbound 2.5-4 Msun stars are ejected from the Milky Way at a rate of 1.5e-6
/yr. The observed HVSs are likely ejected continuously over the past 200 Myr
and do not share a common flight time. The anisotropic spatial distribution of
HVSs on the sky remains puzzling. Southern hemisphere surveys like SkyMapper
will soon allow us to map the all-sky distribution of HVSs. Future proper
motion measurements with Hubble Space Telescope and Gaia will provide strong
constraints on origin. All existing observations are consistent with HVS
ejections from encounters with the massive black hole in the Galactic center.
|
[{'version': 'v1', 'created': 'Tue, 28 Jan 2014 21:12:02 GMT'}]
|
2015-06-18
|
[array(['Brown', 'Warren R.', '', 'SAO'], dtype=object)
array(['Geller', 'Margaret J.', '', 'SAO'], dtype=object)
array(['Kenyon', 'Scott J.', '', 'SAO'], dtype=object)]
|
16,763 |
cs/9906002
|
Stevan Harnad
|
Stevan Harnad
|
The Symbol Grounding Problem
| null |
Physica D 42: 335-346
|
10.1016/0167-2789(90)90087-6
| null |
cs.AI
| null |
How can the semantic interpretation of a formal symbol system be made
intrinsic to the system, rather than just parasitic on the meanings in our
heads? How can the meanings of the meaningless symbol tokens, manipulated
solely on the basis of their (arbitrary) shapes, be grounded in anything but
other meaningless symbols? The problem is analogous to trying to learn Chinese
from a Chinese/Chinese dictionary alone. A candidate solution is sketched:
Symbolic representations must be grounded bottom-up in nonsymbolic
representations of two kinds: (1) "iconic representations," which are analogs
of the proximal sensory projections of distal objects and events, and (2)
"categorical representations," which are learned and innate feature-detectors
that pick out the invariant features of object and event categories from their
sensory projections. Elementary symbols are the names of these object and event
categories, assigned on the basis of their (nonsymbolic) categorical
representations. Higher-order (3) "symbolic representations," grounded in these
elementary symbols, consist of symbol strings describing category membership
relations (e.g., "An X is a Y that is Z").
|
[{'version': 'v1', 'created': 'Tue, 1 Jun 1999 19:57:24 GMT'}]
|
2015-06-25
|
[array(['Harnad', 'Stevan', ''], dtype=object)]
|
16,764 |
1903.04614
|
Ilya Shapirovsky
|
Ilya Shapirovsky
|
Modal logics of finite direct powers of $\omega$ have the finite model
property
| null | null | null | null |
math.LO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $(\omega^n,\preceq)$ be the direct power of $n$ instances of
$(\omega,\leq)$, natural numbers with the standard ordering, $(\omega^n,\prec)$
the direct power of $n$ instances of $(\omega,<)$. We show that for all finite
$n$, the modal logics of $(\omega^n,\preceq)$ and of $(\omega^n,\prec)$ have
the finite model property and moreover, the modal algebras of the frames
$(\omega^n,\preceq)$ and $(\omega^n,\prec)$ are locally finite.
|
[{'version': 'v1', 'created': 'Mon, 11 Mar 2019 21:34:24 GMT'}]
|
2019-03-13
|
[array(['Shapirovsky', 'Ilya', ''], dtype=object)]
|
16,765 |
2306.02606
|
Zhuojia Fu Prof.
|
Zhuojia Fu, Wenzhi Xu, Shuainan Liu
|
Physics-Informed Kernel Function Neural Networks for Solving Partial
Differential Equations
| null | null | null | null |
math.NA cs.NA
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
This paper proposed a novel radial basis function neural network (RBFNN) to
solve various partial differential equations (PDEs). In the proposed RBF neural
networks, the physics-informed kernel functions (PIKFs), which are derived
according to the governing equations of the considered PDEs, are used to be the
activation functions instead of the traditional RBFs. Similar to the well-known
physics-informed neural networks (PINNs), the proposed physics-informed kernel
function neural networks (PIKFNNs) also include the physical information of the
considered PDEs in the neural network. The difference is that the PINNs put
this physical information in the loss function, and the proposed PIKFNNs put
the physical information of the considered governing equations in the
activation functions. By using the derived physics-informed kernel functions
satisfying the considered governing equations of homogeneous, nonhomogeneous,
transient PDEs as the activation functions, only the boundary/initial data are
required to train the neural network. Finally, the feasibility and accuracy of
the proposed PIKFNNs are validated by several benchmark examples referred to
high-wavenumber wave propagation problem, infinite domain problem,
nonhomogeneous problem, long-time evolution problem, inverse problem, spatial
structural derivative diffusion model, and so on.
|
[{'version': 'v1', 'created': 'Mon, 5 Jun 2023 05:36:29 GMT'}
{'version': 'v2', 'created': 'Wed, 7 Jun 2023 14:36:27 GMT'}]
|
2023-06-08
|
[array(['Fu', 'Zhuojia', ''], dtype=object)
array(['Xu', 'Wenzhi', ''], dtype=object)
array(['Liu', 'Shuainan', ''], dtype=object)]
|
16,766 |
2210.15862
|
Guo-Ping Guo
|
Yue Ying, Zhuo-Zhi Zhang, Joel Moser, Zi-Jia Su, Xiang-Xiang Song,
Guo-Ping Guo
|
Sliding nanomechanical resonators
| null |
Nature Communications 13, 6392 (2022)
|
10.1038/s41467-022-34144-5
| null |
cond-mat.mes-hall physics.app-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The motion of a vibrating object is determined by the way it is held. This
simple observation has long inspired string instrument makers to create new
sounds by devising elegant string clamping mechanisms, whereby the distance
between the clamping points is modulated as the string vibrates. At the
nanoscale, the simplest way to emulate this principle would be to controllably
make nanoresonators slide across their clamping points, which would effectively
modulate their vibrating length. Here, we report measurements of flexural
vibrations in nanomechanical resonators that reveal such a sliding motion.
Surprisingly, the resonant frequency of vibrations draws a loop as a tuning
gate voltage is cycled. This behavior indicates that sliding is accompanied by
a delayed frequency response of the resonators, making their dynamics richer
than that of resonators with fixed clamping points. Our work elucidates the
dynamics of nanomechanical resonators with unconventional boundary conditions,
and offers opportunities for studying friction at the nanoscale from resonant
frequency measurements.
|
[{'version': 'v1', 'created': 'Fri, 28 Oct 2022 03:12:37 GMT'}]
|
2022-10-31
|
[array(['Ying', 'Yue', ''], dtype=object)
array(['Zhang', 'Zhuo-Zhi', ''], dtype=object)
array(['Moser', 'Joel', ''], dtype=object)
array(['Su', 'Zi-Jia', ''], dtype=object)
array(['Song', 'Xiang-Xiang', ''], dtype=object)
array(['Guo', 'Guo-Ping', ''], dtype=object)]
|
16,767 |
1501.00316
|
Wei Wu
|
Wei Wu
|
Phenomenological modelling for Time-Resolved Electron Paramagnetic
Resonance in radical-triplet system
|
10 pages, 7 figures
| null | null |
WW_RTS1_2015
|
quant-ph cs.IT math.IT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The spin dynamics of radical-triplet system (RTS) has been calculated by
using the Lindblad formalism within the theory of open quantum system. The
single-radical-triplet system (SRTS) is considered here for single-qubit
quantum gate operations while double-radical-triplet system (DRTS) for
two-qubit operations. The environment effects taken into account include the
spin-lattice relaxation of the triplet exciton and radical spin-$\frac{1}{2}$,
the inter-system crossing process that induces the transition from singlet
excited state to the triplet ground state, and the rather slow relaxation
process from the triplet ground state back down to the singlet ground state.
These calculations shown that the line shape broadening is strongly related to
the exchange interaction between triplet and exciton, which can be understood
as a spontaneous magnetic field created by the triplet renormalises the
original spin-$\frac{1}{2}$ electron spin resonance spectra. This work will
provide key information about the spin dynamics for building
optically-controlled molecular quantum gate out of radical-bearing molecules.
Moreover, this has generated the further theoretical question on how the
mixture of fermion and boson behaves.
|
[{'version': 'v1', 'created': 'Thu, 1 Jan 2015 21:00:21 GMT'}]
|
2015-01-05
|
[array(['Wu', 'Wei', ''], dtype=object)]
|
16,768 |
2204.13719
|
Nils Quetschlich
|
Nils Quetschlich, Lukas Burgholzer, Robert Wille
|
MQT Bench: Benchmarking Software and Design Automation Tools for Quantum
Computing
|
7 pages, 3 figures, MQT Bench is hosted at
https://www.cda.cit.tum.de/mqtbench/, revised text and improved tool
| null | null | null |
quant-ph cs.ET
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Quantum software tools for a wide variety of design tasks on and across
different levels of abstraction are crucial in order to eventually realize
useful quantum applications. This requires practical and relevant benchmarks
for new software tools to be empirically evaluated and compared to the current
state of the art. While benchmarks for specific design tasks are commonly
available, the demand for an overarching cross-level benchmark suite is not
fully met yet and there is no mutual consolidation in how quantum software
tools are evaluated thus far. In this work, we propose the MQT Bench benchmark
suite (as part of the Munich Quantum Toolkit (MQT)) based on four core traits:
(1) cross-level support for different abstraction levels, (2) accessibility via
an easy to use web interface (https://www.cda.cit.tum.de/mqtbench) and a Python
package, (3) provision of a broad selection of benchmarks to facilitate
generalizability, as well as (4) extendability to future algorithms, gate-sets,
and hardware architectures. By comprising more than 50,000 benchmark circuits
ranging from 2 up to 130 qubits on four abstraction levels, MQT Bench presents
a first step towards benchmarking different abstraction levels with a single
benchmark suite to increase comparability, reproducibility, and transparency.
|
[{'version': 'v1', 'created': 'Thu, 28 Apr 2022 18:00:10 GMT'}
{'version': 'v2', 'created': 'Sat, 3 Sep 2022 09:33:51 GMT'}]
|
2022-09-07
|
[array(['Quetschlich', 'Nils', ''], dtype=object)
array(['Burgholzer', 'Lukas', ''], dtype=object)
array(['Wille', 'Robert', ''], dtype=object)]
|
16,769 |
1907.05657
|
Hanadi Salman
|
H. Salman, R. Balatiah, A. Masri and Y.A.S. Dama
|
Energy Aware Wireless System based Software Defined Radio
|
5 Pages, 6 Figures, 4 Tables, 2019 IEEE 89th Vehicular Technology
Conference (VTC2019-Spring)
| null |
10.1109/VTCSpring.2019.8746664
| null |
eess.SP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Development of green telecommunication systems is already being considered
highly attractive by standard bodies and recently is attracting research
attention. While most of the research focuses on modeling and simulation, in
this work we implement a lab setup to test an energy aware wireless system
based on software defined radio and solar energy power system. In addition, we
proposed an energy aware adaptive modulation algorithm that considers the state
of charge of the solar energy batteries before setting up the modulation order.
Moreover, the algorithm adapts to user preferences between the connectivity
mode and the quality mode.
|
[{'version': 'v1', 'created': 'Fri, 12 Jul 2019 10:17:41 GMT'}]
|
2019-07-15
|
[array(['Salman', 'H.', ''], dtype=object)
array(['Balatiah', 'R.', ''], dtype=object)
array(['Masri', 'A.', ''], dtype=object)
array(['Dama', 'Y. A. S.', ''], dtype=object)]
|
16,770 |
2003.03840
|
Lenny Fukshansky
|
Lenny Fukshansky and David Kogan
|
On the geometry of nearly orthogonal lattices
|
21 pages, to appear in Linear Algebra and its Applications
| null | null | null |
math.MG math.CO math.NT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Nearly orthogonal lattices were formally defined in [4], where their
applications to image compression were also discussed. The idea of ``near
orthogonality" in $2$-dimensions goes back to the work of Gauss. In this paper,
we focus on well-rounded nearly orthogonal lattices in~$\mathbb R^n$ and
investigate their geometric and optimization properties. Specifically, we prove
that the sphere packing density function on the space of well-rounded lattices
in dimension $n\geq 3$ does not have any local maxima on the nearly orthogonal
set and has only one local minimum there: at the integer lattice~$\mathbb Z^n$.
Further, we show that the nearly orthogonal set cannot contain any perfect
lattices for~$n \geq 3$, although it contains multiple eutactic (and even
strongly eutactic) lattices in every dimension. This implies that eutactic
lattices, while always critical points of the packing density function, are not
necessarily local maxima or minima even among the well-rounded lattices. We
also prove that a (weakly) nearly orthogonal lattice in~$\mathbb R^n$ contains
no more than~$4n-2$ minimal vectors (with any smaller even number possible) and
establish some bounds on coherence of these lattices.
|
[{'version': 'v1', 'created': 'Sun, 8 Mar 2020 19:53:21 GMT'}
{'version': 'v2', 'created': 'Mon, 19 Jul 2021 16:54:29 GMT'}]
|
2021-07-20
|
[array(['Fukshansky', 'Lenny', ''], dtype=object)
array(['Kogan', 'David', ''], dtype=object)]
|
16,771 |
2205.15949
|
Alexander Golovanov
|
Alexander Golovanov
|
On the maximum size packings of disks with kissing radius 3
| null |
Moscow J. Comb. Number Th. 11 (2022) 263-286
|
10.2140/moscow.2022.11.263
| null |
math.MG math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
L\'{a}szl\'{o} Fejes T\'{o}th and Alad\'{a}r Heppes proposed the following
generalization of the kissing number problem. Given a ball in $\mathbb{R}^d$,
consider a family of balls touching it, and another family of balls touching
the first family. Find the maximal possible number of balls in this
arrangement, provided that no two balls intersect by interiors, and all balls
are congruent. They showed that the answer for disks on the plane is $19$. They
also conjectured that if there are three families of disks instead of two, the
answer is $37$. In this paper we confirm this conjecture.
|
[{'version': 'v1', 'created': 'Tue, 31 May 2022 16:47:28 GMT'}]
|
2022-10-19
|
[array(['Golovanov', 'Alexander', ''], dtype=object)]
|
16,772 |
1809.04485
|
Sergey Novikov
|
Sergey Novikov (1), Robert Hinkey (1), Steven Disseler (1), James I.
Basham (1), Tameem Albash (2), Andrew Risinger (1), David Ferguson (1),
Daniel A. Lidar (2), Kenneth M. Zick (1) ((1) Northrop Grumman Corporation,
(2) University of Southern California)
|
Exploring More-Coherent Quantum Annealing
|
7 pages, 3 figures. Accepted by the 2018 IEEE International
Conference on Rebooting Computing (ICRC)
|
2018 IEEE International Conference on Rebooting Computing (ICRC),
McLean, VA, USA, 2018, pp. 1-7
|
10.1109/ICRC.2018.8638625
| null |
quant-ph cs.ET
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In the quest to reboot computing, quantum annealing (QA) is an interesting
candidate for a new capability. While it has not demonstrated an advantage over
classical computing on a real-world application, many important regions of the
QA design space have yet to be explored. In IARPA's Quantum Enhanced
Optimization (QEO) program, we have opened some new lines of inquiry to get to
the heart of QA, and are designing testbed superconducting circuits and
conducting key experiments. In this paper, we discuss recent experimental
progress related to one of the key design dimensions: qubit coherence. Using
MIT Lincoln Laboratory's qubit fabrication process and extending recent
progress in flux qubits, we are implementing and measuring QA-capable flux
qubits. Achieving high coherence in a QA context presents significant new
engineering challenges. We report on techniques and preliminary measurement
results addressing two of the challenges: crosstalk calibration and qubit
readout. This groundwork enables exploration of other promising features and
provides a path to understanding the physics and the viability of quantum
annealing as a computing resource.
|
[{'version': 'v1', 'created': 'Wed, 12 Sep 2018 14:34:37 GMT'}]
|
2019-08-16
|
[array(['Novikov', 'Sergey', ''], dtype=object)
array(['Hinkey', 'Robert', ''], dtype=object)
array(['Disseler', 'Steven', ''], dtype=object)
array(['Basham', 'James I.', ''], dtype=object)
array(['Albash', 'Tameem', ''], dtype=object)
array(['Risinger', 'Andrew', ''], dtype=object)
array(['Ferguson', 'David', ''], dtype=object)
array(['Lidar', 'Daniel A.', ''], dtype=object)
array(['Zick', 'Kenneth M.', ''], dtype=object)]
|
16,773 |
1705.08644
|
Lin Wang
|
Xia Li and Lin Wang
|
Asymptotic Lipschitz regularity of viscosity solutions of
Hamilton-Jacobi equations
|
to appear in Proceedings of the AMS
| null | null | null |
math.AP math.DS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
For each continuous initial data $\varphi(x)\in C(M,\mathbb{R})$, we obtain
the asymptotic Lipschitz regularity of the viscosity solution of the following
evolutionary Hamilton-Jacobi equation with convex and coercive Hamiltonians:
\partial_tu(x,t)+H(x,\partial_xu(x,t))=0, u(x,0)=\varphi(x).
|
[{'version': 'v1', 'created': 'Wed, 24 May 2017 08:00:07 GMT'}]
|
2017-05-25
|
[array(['Li', 'Xia', ''], dtype=object)
array(['Wang', 'Lin', ''], dtype=object)]
|
16,774 |
1804.01192
|
Alexandre Ermoline
|
Alexandre Ermoline
|
Thermal theory of aluminum particle ignition in continuum,
free-molecular, and transition heat transfer regimes
| null |
Journal of Applied Physics, 124, 054301 (2018)
|
10.1063/1.5039691
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Most studies on nano- and micro- sized aluminum particle ignition have been
focused on the processes occuring inside particles. In the current paper,
thermal ignition of an aluminum particle in the air is simulated with different
heat transfer models: continuum, free-molecular and Fuchs model. A single
parabolic oxidation law is assumed in the particle size range from nano- to
millimeter diameters. A particle is considered ignited when it reaches the
oxide melting point. The criterion defining the limits of validity for each
model is the ratio of continuum and free-molecular heat transfer rates. The
dependence of ignition temperature $T_i$ on particle size is in a qualitative
agreement with the experimental trends: $T_i$ can have values in the range
700--1500 K for nanoparticles due to the dominating contribution of a
free-molecular heat transfer, and sharp growth of $T_i$ with the particle size
in the range of 1-100 $\mu$m diameter is due to the transitional character of
heat transfer. For small values of accommodation coefficient, ignition may
occur in the critical ignition mode with the thermal runaway. The results
suggest the importance of heat transfer and, in particular, energy
accommodation in ignition of nano- and micro- sized particles.
|
[{'version': 'v1', 'created': 'Tue, 3 Apr 2018 23:30:15 GMT'}
{'version': 'v2', 'created': 'Wed, 1 Aug 2018 17:52:31 GMT'}]
|
2018-08-02
|
[array(['Ermoline', 'Alexandre', ''], dtype=object)]
|
16,775 |
1605.07854
|
Lukas Martig
|
Lukas Martig, J\"urg H\"usler
|
Asymptotic normality of the likelihood moment estimators for a
stationary linear process with heavy-tailed innovations
|
21 pages
| null | null | null |
stat.AP math.ST stat.TH
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A variety of estimators for the parameters of the Generalized Pareto
distribution, the approximating distribution for excesses over a high
threshold, have been proposed, always assuming the underlying data to be
independent. We recently proved that the likelihood moment estimators are
consistent estimators for the parameters of the Generalized Pareto distribution
for the case where the underlying data arises from a (stationary) linear
process with heavy-tailed innovations. In this paper we derive the bivariate
asymptotic normality under some additional assumptions and give an explicit
example on how to check these conditions by using asymptotic expansions.
|
[{'version': 'v1', 'created': 'Wed, 25 May 2016 12:31:31 GMT'}]
|
2016-05-26
|
[array(['Martig', 'Lukas', ''], dtype=object)
array(['Hüsler', 'Jürg', ''], dtype=object)]
|
16,776 |
1804.07563
|
Elia Macaluso
|
Elia Macaluso, Iacopo Carusotto
|
Ring-shaped fractional quantum Hall liquids with hard-wall potentials
|
18 pages, 11 figures. Revised version, accepted in Phys. Rev. A
|
Phys. Rev. A 98, 013605 (2018)
|
10.1103/PhysRevA.98.013605
| null |
cond-mat.quant-gas
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the physics of $\nu=1/2$ bosonic fractional quantum Hall droplets
confined in a ring-shaped region delimited by two concentric cylindrically
symmetric hard-wall potentials. Trial wave functions based on an extension of
the Jack polynomial formalism including two different chiral edges are proposed
and validated for a wide range of confinement potentials in terms of their
excellent overlap with the eigenstates numerically found by exact
diagonalization. In the presence of a single repulsive potential centered in
the origin, a recursive structure in the many-body spectra and a massively
degenerate ground state manifold are found. The addition of a second hard-wall
potential confining the fractional quantum Hall droplet from the outside leads
to a non-degenerate ground state containing a well defined number of quasiholes
at the center and, for suitable potential parameters, to a clear organization
of the excitations on the two edges. The utility of this ring-shaped
configuration in view of theoretical and experimental studies of subtle aspects
of fractional quantum Hall physics is outlined.
|
[{'version': 'v1', 'created': 'Fri, 20 Apr 2018 11:49:15 GMT'}
{'version': 'v2', 'created': 'Mon, 2 Jul 2018 13:01:27 GMT'}]
|
2018-07-06
|
[array(['Macaluso', 'Elia', ''], dtype=object)
array(['Carusotto', 'Iacopo', ''], dtype=object)]
|
16,777 |
2110.00811
|
Michael Ekstrand
|
Michael D. Ekstrand
|
Multiversal Simulacra: Understanding Hypotheticals and Possible Worlds
Through Simulation
|
Contribution to the SimuRec Workshop at RecSys 2021
| null | null | null |
cs.IR cs.HC cs.SI
|
http://creativecommons.org/licenses/by-sa/4.0/
|
Recommender systems research is concerned with many aspects of recommender
system behavior and effects than simply its effectiveness, and simulation can
be a powerful tool for uncovering these effects. In this brief position paper,
I identify specific types of research that simulation is uniquely well-suited
to address along with a hierarchy of simulation types.
|
[{'version': 'v1', 'created': 'Sat, 2 Oct 2021 14:29:50 GMT'}]
|
2021-10-05
|
[array(['Ekstrand', 'Michael D.', ''], dtype=object)]
|
16,778 |
1909.13664
|
Bakur Parsamyan
|
Harut Avakian, Bakur Parsamyan, Alexey Prokudin
|
Spin Orbit Correlations and the Structure of the Nucleon
| null |
Riv. Nuovo Cimento, Vol. 42 (2019) 1
|
10.1393/ncr/i2019-10155-3
| null |
hep-ex hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Extensive experimental measurements of spin and azimuthal asymmetries in
various processes have stimulated theoretical interest and progress in studies
of the nucleon structure. Interpretation of experimental data in terms of
parton distribution functions, generalized to describe transverse momentum and
spatial parton distributions, is one of the main remaining challenges of modern
nuclear physics. These new parton distribution and fragmentation functions
encode the motion and the position of partons and are often referred to as
three-dimensional distributions describing the three-dimensional (3D) structure
of the nucleon. Understanding of the production mechanism and performing
phenomenological studies compatible with factorization theorems using minimal
model assumptions are goals of analysis of the experimental data. HERMES and
COMPASS Collaborations and experiments at Jefferson Lab have collected a wealth
of polarized and unpolarized Semi-Inclusive Deep Inelastic Scattering (SIDIS)
data. These data play a crucial role in current understanding of nucleon
spin-phenomena as they cover a broad kinematical range. The Jefferson Lab 12
GeV upgrade data on polarized and unpolarized SIDIS will have remarkably higher
precision at large parton fractional momentum $x$ compared to the existing
data. We argue that both experimental and phenomenological communities will
benefit from development of a comprehensive extraction framework that will
facilitate extraction of 3D nucleon structure, help understand various
assumptions in extraction and data analysis, help to insure the model
independence of the experimental data and validate the extracted functions. In
this review we present the latest developments in the field of the spin
asymmetries and discuss different components involved in precision extraction
of 3D partonic distribution and fragmentation functions.
|
[{'version': 'v1', 'created': 'Mon, 30 Sep 2019 13:03:33 GMT'}]
|
2019-10-01
|
[array(['Avakian', 'Harut', ''], dtype=object)
array(['Parsamyan', 'Bakur', ''], dtype=object)
array(['Prokudin', 'Alexey', ''], dtype=object)]
|
16,779 |
1808.04058
|
Melike Sirlanci
|
Melike Sirlanci, Susan E. Luczak, Catharine E. Fairbairn, Dahyeon
Kang, Ruoxi Pan, Xin Yu, and I. G. Rosen
|
Estimating the Distribution of Random Parameters in a Diffusion Equation
Forward Model for a Transdermal Alcohol Biosensor
|
10 pages
| null | null | null |
math.OC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We estimate the distribution of random parameters in a distributed parameter
model with unbounded input and output for the transdermal transport of ethanol
in humans. The model takes the form of a diffusion equation with the input
being the blood alcohol concentration and the output being the transdermal
alcohol concentration. Our approach is based on the idea of reformulating the
underlying dynamical system in such a way that the random parameters are now
treated as additional space variables. When the distribution to be estimated is
assumed to be defined in terms of a joint density, estimating the distribution
is equivalent to estimating the diffusivity in a multi-dimensional diffusion
equation and thus well-established finite dimensional approximation schemes,
functional analytic based convergence arguments, optimization techniques, and
computational methods may all be employed. We use our technique to estimate a
bivariate normal distribution based on data for multiple drinking episodes from
a single subject.
|
[{'version': 'v1', 'created': 'Mon, 13 Aug 2018 04:04:51 GMT'}]
|
2018-08-14
|
[array(['Sirlanci', 'Melike', ''], dtype=object)
array(['Luczak', 'Susan E.', ''], dtype=object)
array(['Fairbairn', 'Catharine E.', ''], dtype=object)
array(['Kang', 'Dahyeon', ''], dtype=object)
array(['Pan', 'Ruoxi', ''], dtype=object)
array(['Yu', 'Xin', ''], dtype=object)
array(['Rosen', 'I. G.', ''], dtype=object)]
|
16,780 |
1605.05187
|
Domenico Tallarico
|
Domenico Tallarico, Natalia V. Movchan, Alexander B. Movchan, Michele
Camposaragna
|
Propagation and filtering of elastic and electromagnetic waves in
piezoelectric composite structures
|
24 pages, 18 figures, 3 tables. Preprint version of a research
article, accepted for publication in "Mathematical Methods in the Applied
Science (2016)"
| null |
10.1002/mma.3893
| null |
cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this article we discuss the modelling of elastic and electromagnetic wave
propagation through one- and two-dimensional structured piezoelectric solids.
Dispersion and the effect of piezoelectricity on the group velocity and
positions of stop bands are studied in detail. We will also analyze the
reflection and transmission associated with the problem of scattering of an
elastic wave by a heterogeneous piezoelectric stack. Special attention is given
to the occurrence of transmission resonances in finite stacks and their
dependence on a piezoelectric effect. A 2D doubly-periodic piezoelectric
checkerboard structure is subsequently introduced, for which the dispersion
surfaces for Bloch waves have been constructed and analysed, with the emphasis
on the dynamic anisotropy and special features of standing waves within the
piezoelectric structure.
|
[{'version': 'v1', 'created': 'Sat, 14 May 2016 18:54:09 GMT'}]
|
2017-01-25
|
[array(['Tallarico', 'Domenico', ''], dtype=object)
array(['Movchan', 'Natalia V.', ''], dtype=object)
array(['Movchan', 'Alexander B.', ''], dtype=object)
array(['Camposaragna', 'Michele', ''], dtype=object)]
|
16,781 |
0909.0979
|
Khristo N. Boyadzhiev
|
Khristo N. Boyadzhiev
|
Exponential Polynomials, Stirling Numbers,and Evaluation of Some Gamma
Integrals
|
Updated January 2010
|
Abstract and Applied Analysis, Volume 2009, Article ID 168672
(electronic)
|
10.1155/2009/168672
| null |
math.CA math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This article is a survey of the exponential polynomials (also called
single-variable Bell polynomials) from the point of view of Analysis. Some new
properties are included and several Analysis-related applications are
mentioned.
|
[{'version': 'v1', 'created': 'Fri, 4 Sep 2009 23:20:15 GMT'}
{'version': 'v2', 'created': 'Sat, 19 Sep 2009 00:03:05 GMT'}
{'version': 'v3', 'created': 'Sat, 7 Nov 2009 03:01:17 GMT'}
{'version': 'v4', 'created': 'Wed, 10 Mar 2010 01:11:07 GMT'}]
|
2016-10-10
|
[array(['Boyadzhiev', 'Khristo N.', ''], dtype=object)]
|
16,782 |
1405.4291
|
Alexander Pritzel
|
Markus Dierigl and Alexander Pritzel
|
Topological Model for Domain Walls in (Super-)Yang-Mills Theories
| null |
Phys. Rev. D 90, 105008 (2014)
|
10.1103/PhysRevD.90.105008
| null |
hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We derive a topological action that describes the confining phase of
(Super-)Yang-Mills theories with gauge group $SU(N)$, similar to the work
recently carried out by Seiberg and collaborators. It encodes all the
Aharonov-Bohm phases of the possible non-local operators and phases generated
by the intersection of flux tubes. Within this topological framework we show
that the worldvolume theory of domain walls contains a Chern-Simons term at
level $N$ also seen in string theory constructions. The discussion can also
illuminate dynamical differences of domain walls in the supersymmetric and
non-supersymmetric framework. Two further analogies, to string theory and the
fractional quantum Hall effect might lead to additional possibilities to
investigate the dynamics.
|
[{'version': 'v1', 'created': 'Fri, 16 May 2014 20:00:05 GMT'}]
|
2014-11-19
|
[array(['Dierigl', 'Markus', ''], dtype=object)
array(['Pritzel', 'Alexander', ''], dtype=object)]
|
16,783 |
math/0012187
|
Zwonek
|
P. Pflug, W. Zwonek
|
$L_h^2$-domains of holomorphy and the Bergman kernel
|
9 pages
| null | null | null |
math.CV
| null |
We give a characterization of $L_h^2$-domains of holomorphy with the help of
the boundary behavior of the Bergman kernel and geometric properties of the
boundary, respectively.
|
[{'version': 'v1', 'created': 'Tue, 19 Dec 2000 18:21:24 GMT'}]
|
2007-05-23
|
[array(['Pflug', 'P.', ''], dtype=object)
array(['Zwonek', 'W.', ''], dtype=object)]
|
16,784 |
2002.11023
|
Carlos Bobed
|
Mar\'ia G. Buey and Carlos Bobed and Jorge Gracia and Eduardo Mena
|
Semantic Relatedness for Keyword Disambiguation: Exploiting Different
Embeddings
| null | null | null | null |
cs.CL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Understanding the meaning of words is crucial for many tasks that involve
human-machine interaction. This has been tackled by research in Word Sense
Disambiguation (WSD) in the Natural Language Processing (NLP) field. Recently,
WSD and many other NLP tasks have taken advantage of embeddings-based
representation of words, sentences, and documents. However, when it comes to
WSD, most embeddings models suffer from ambiguity as they do not capture the
different possible meanings of the words. Even when they do, the list of
possible meanings for a word (sense inventory) has to be known in advance at
training time to be included in the embeddings space. Unfortunately, there are
situations in which such a sense inventory is not known in advance (e.g., an
ontology selected at run-time), or it evolves with time and its status diverges
from the one at training time. This hampers the use of embeddings models for
WSD. Furthermore, traditional WSD techniques do not perform well in situations
in which the available linguistic information is very scarce, such as the case
of keyword-based queries. In this paper, we propose an approach to keyword
disambiguation which grounds on a semantic relatedness between words and senses
provided by an external inventory (ontology) that is not known at training
time. Building on previous works, we present a semantic relatedness measure
that uses word embeddings, and explore different disambiguation algorithms to
also exploit both word and sentence representations. Experimental results show
that this approach achieves results comparable with the state of the art when
applied for WSD, without training for a particular domain.
|
[{'version': 'v1', 'created': 'Tue, 25 Feb 2020 16:44:50 GMT'}]
|
2020-02-26
|
[array(['Buey', 'María G.', ''], dtype=object)
array(['Bobed', 'Carlos', ''], dtype=object)
array(['Gracia', 'Jorge', ''], dtype=object)
array(['Mena', 'Eduardo', ''], dtype=object)]
|
16,785 |
chao-dyn/9708001
|
Alessandro Torcini
|
Thierry Dauxois, Stefano Ruffo and Alessandro Torcini
|
Modulational Estimate for Fermi-Pasta-Ulam Chain Lyapunov Exponents
|
4 pages, revtex, 4 ps figures, submitted to PRE
|
Phys. Rev. E, 56 (1997) R6229
|
10.1103/PhysRevE.56.R6229
| null |
chao-dyn cond-mat.stat-mech nlin.CD
| null |
In the framework of the Fermi-Pasta-Ulam (FPU) model, we show a simple method
to give an accurate analytical estimation of the maximal Lyapunov exponent at
high energy density. The method is based on the computation of the mean value
of the modulational instability growth rates associated to unstable modes.
Moreover, we show that the strong stochasticity threshold found in the
$\beta$-FPU system is closely related to a transition in tangent space: the
Lyapunov eigenvector being more localized in space at high energy.
|
[{'version': 'v1', 'created': 'Fri, 1 Aug 1997 08:12:11 GMT'}]
|
2009-10-30
|
[array(['Dauxois', 'Thierry', ''], dtype=object)
array(['Ruffo', 'Stefano', ''], dtype=object)
array(['Torcini', 'Alessandro', ''], dtype=object)]
|
16,786 |
1612.05626
|
Biplav Srivastava
|
Biplav Srivastava, Sandeep Sandha, Vaskar Raychoudhury, Sukanya
Randhawa, Viral Kapoor, Anmol Agrawal
|
An Open, Multi-Sensor, Dataset of Water Pollution of Ganga Basin and its
Application to Understand Impact of Large Religious Gathering
|
7 pages
| null | null | null |
cs.CY
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Water is a crucial pre-requisite for all human activities. Due to growing
demand from population and shrinking supply of potable water, there is an
urgent need to use computational methods to manage available water
intelligently, and especially in developing countries like India where even
basic data to track water availability or physical infrastructure to process
water are inadequate. In this context, we present a dataset of water pollution
containing quantitative and qualitative data from a combination for modalities
- real-time sensors, lab results, and estimates from people using mobile apps.
The data on our API-accessible cloud platform covers more than 60 locations and
consists of both what we have ourselves collected from multiple location
following a novel process, and from others (lab-results) which were open but
hither-to difficult to access. Further, we discuss an application of released
data to understand spatio-temporal pollution impact of a large event with
hundreds of millions of people converging on a river during a religious
gathering (Ardh Khumbh 2016) spread over months. Such unprecedented details can
help authorities manage an ongoing event or plan for future ones. The community
can use the data for any application and also contribute new data to the
platform.
|
[{'version': 'v1', 'created': 'Sun, 20 Nov 2016 01:45:36 GMT'}]
|
2016-12-19
|
[array(['Srivastava', 'Biplav', ''], dtype=object)
array(['Sandha', 'Sandeep', ''], dtype=object)
array(['Raychoudhury', 'Vaskar', ''], dtype=object)
array(['Randhawa', 'Sukanya', ''], dtype=object)
array(['Kapoor', 'Viral', ''], dtype=object)
array(['Agrawal', 'Anmol', ''], dtype=object)]
|
16,787 |
0704.1828
|
Dennis D. Dietrich
|
Dennis D. Dietrich
|
Gauge invariance in gravity-like descriptions of massive gauge field
theories
|
11 pages
| null | null | null |
hep-th
| null |
We discuss gravity-like formulations of massive Abelian and non-Abelian gauge
field theories in four space-time dimensions with particular emphasis on the
issue of gauge invariance. Alternative descriptions in terms of antisymmetric
tensor fields and geometric variables, respectively, are analysed. In both
approaches St\"uckelberg degrees of freedom factor out. We also demonstrate, in
the Abelian case, that the massless limit for the gauge propagator, which does
not exist in the vector potential formulation, is well-defined for the
antisymmetric tensor fields.
|
[{'version': 'v1', 'created': 'Fri, 13 Apr 2007 21:51:21 GMT'}]
|
2007-05-23
|
[array(['Dietrich', 'Dennis D.', ''], dtype=object)]
|
16,788 |
math/0203163
|
Anne Schilling
|
Masato Okado, Anne Schilling, Mark Shimozono
|
A crystal to rigged configuration bijection for nonexceptional affine
algebras
|
34 pages; axodraw.sty file required
|
"Algebraic Combinatorics and Quantum Groups", Edited by N. Jing,
World Scientific (2003), 85-124
| null | null |
math.QA math.CO
| null |
Kerov, Kirillov, and Reshetikhin defined a bijection between highest weight
vectors in the crystal graph of a tensor power of the vector representation,
and combinatorial objects called rigged configurations, for type $A^{(1)}_n$.
We define an analogous bijection for all nonexceptional affine types, thereby
proving (in this special case) the fermionic formulas conjectured by Hatayama,
Kuniba, Takagi, Tsuboi, Yamada, and the first author.
|
[{'version': 'v1', 'created': 'Sat, 16 Mar 2002 00:59:34 GMT'}]
|
2007-05-23
|
[array(['Okado', 'Masato', ''], dtype=object)
array(['Schilling', 'Anne', ''], dtype=object)
array(['Shimozono', 'Mark', ''], dtype=object)]
|
16,789 |
1202.4250
|
Dahai Yan
|
Dahai Yan, Houdun Zeng and Li Zhang
|
The contribution from blazar cascade emission to the extragalactic
gamma-ray background: What a role does the extragalactic magnetic field play?
|
6 pages, 3 figures. Accepted for publication in MNRAS
| null |
10.1111/j.1365-2966.2012.20752.x
| null |
astro-ph.HE astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We estimate the contribution to the extragalactic gamma-ray background (EGRB)
from both intrinsic and cascade emissions produced by blazars using a simple
semi- analysis method for two models of the blazar gamma-ray luminosity
function (GLF). For the cascade emission, we consider two possible
contributions: one is due to that the flux of the cascade emission is lower
than the Fermi LAT sensitivity (case I), which is independent on the
extragalactic magnetic field (EGMF), another is due to the fact that the flux
of the cascade emission is larger than the Fermi LAT sensitivity but the
emission angle is larger than LAT point-spread-function (PSF) angle (case II),
which depends on the EGMF. Our results indicate that (1) blazar contribution to
the EGRB is dominant although it depends on the GLF model and the EGMF; (2) the
EGMF plays an important role in estimating the contribution from the cascade
emission produced by blazars, the contribution from the cascade emission will
significantly alter the EGRB spectrum when the strength of the EGMF is large
enough (say BEGMF > 10-12 G); and (3) since the cascade emission in case II
reaches a saturation when the strength of the EGMF is ? 10-11 G, it is very
possible that the contribution from the cascade emission produced by blazars
can be considered as another method to probe the upper limit of the strength of
the EGMF.
|
[{'version': 'v1', 'created': 'Mon, 20 Feb 2012 08:31:06 GMT'}]
|
2015-06-04
|
[array(['Yan', 'Dahai', ''], dtype=object)
array(['Zeng', 'Houdun', ''], dtype=object)
array(['Zhang', 'Li', ''], dtype=object)]
|
16,790 |
2303.12024
|
Anirudh Sundar
|
Anirudh S Sundar, Larry Heck
|
cTBLS: Augmenting Large Language Models with Conversational Tables
| null | null | null | null |
cs.CL cs.AI
|
http://creativecommons.org/licenses/by/4.0/
|
Optimizing accuracy and performance while eliminating hallucinations of
open-domain conversational large language models (LLMs) is an open research
challenge. A particularly promising direction is to augment and ground LLMs
with information from structured sources. This paper introduces Conversational
Tables (cTBLS), a three-step architecture to retrieve and generate dialogue
responses grounded on retrieved tabular information. cTBLS uses Transformer
encoder embeddings for Dense Table Retrieval and obtains up to 125% relative
improvement over the retriever in the previous state-of-the-art system on the
HyrbiDialogue dataset. cTBLS then uses a shared process between encoder and
decoder models to perform a coarse+fine tabular knowledge (e.g., cell) ranking
combined with a GPT-3.5 LLM response generator to yield a 2x relative
improvement in ROUGE scores. Finally, human evaluators prefer cTBLs +80% of the
time (coherency, fluency) and judge informativeness to be 4x better than the
previous state-of-the-art.
|
[{'version': 'v1', 'created': 'Tue, 21 Mar 2023 17:04:44 GMT'}
{'version': 'v2', 'created': 'Wed, 22 Mar 2023 20:16:47 GMT'}
{'version': 'v3', 'created': 'Wed, 31 May 2023 00:44:56 GMT'}]
|
2023-06-01
|
[array(['Sundar', 'Anirudh S', ''], dtype=object)
array(['Heck', 'Larry', ''], dtype=object)]
|
16,791 |
2007.10302
|
Suresh Nampuri Dr.
|
Gabriel Lopes Cardoso, Suresh Nampuri, Mart\'i Rossell\'o
|
Arithmetic of decay walls through continued fractions: a new exact dyon
counting solution in $\mathcal{N} =4$ CHL models
|
32 pages, 4 figures
|
JHEP03(2021)154
|
10.1007/JHEP03(2021)154
| null |
hep-th math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We use continued fractions to perform a systematic and explicit
characterization of the decays of two-centred dyonic black holes in $4D$
$\mathcal{N} =4$ heterotic $\mathbb{Z}_N$ CHL models. Thereby we give a new
exact solution for the problem of counting decadent dyons in these models.
|
[{'version': 'v1', 'created': 'Mon, 20 Jul 2020 17:43:24 GMT'}
{'version': 'v2', 'created': 'Mon, 22 Mar 2021 08:08:27 GMT'}]
|
2021-12-21
|
[array(['Cardoso', 'Gabriel Lopes', ''], dtype=object)
array(['Nampuri', 'Suresh', ''], dtype=object)
array(['Rosselló', 'Martí', ''], dtype=object)]
|
16,792 |
2012.06887
|
Ali Rejali
|
Mitra Amiri, Ali Rejali
|
The Bochner-Schoenberg-Eberlein Property for Fr\'echet C*-algebras and
uniform Fr\'echet Algebras
|
8 pages
| null | null | null |
math.FA math.AC math.OA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Takahasi and Hatori introduced a class of commutative Banach algebras which
satisfy a Bochner-Schoenberg-Eberlein-type inequality. Baised on their results
we introduced a class of commutative Fr\'echet algebras which satisfy this
property. We show that Fr\'echet C*-algebras and uniform Fr\'echet algebras are
BSE-algebras.
|
[{'version': 'v1', 'created': 'Sat, 12 Dec 2020 18:42:21 GMT'}]
|
2020-12-29
|
[array(['Amiri', 'Mitra', ''], dtype=object)
array(['Rejali', 'Ali', ''], dtype=object)]
|
16,793 |
1009.3165
|
Luigi Brugnano
|
Luigi Brugnano, Felice Iavernaro, Donato Trigiante
|
A unifying framework for the derivation and analysis of effective
classes of one-step methods for ODEs
|
11 pages, 2 figures (proofs of Thms. 2.2 and 3.1 simplified)
|
Applied Mathematics and Computation 218 (2012) 8475-8485
|
10.1016/j.amc.2012.01.074
| null |
math.NA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we provide a simple framework to derive and analyse several
classes of effective one-step methods. The framework consists in the
discretization of a local Fourier expansion of the continuous problem.
Different choices of the basis lead to different classes of methods, even
though we shall here consider only the case of an orthonormal polynomial basis,
from which a large subclass of Runge-Kutta methods is derived. The obtained
results are then applied to prove, in a simplified way, the order and stability
properties of Hamiltonian BVMs (HBVMs), a recently introduced class of energy
preserving methods for canonical Hamiltonian systems. A few numerical tests
with such methods are also included, in order to confirm the effectiveness of
the methods.
|
[{'version': 'v1', 'created': 'Thu, 16 Sep 2010 12:52:16 GMT'}
{'version': 'v2', 'created': 'Fri, 8 Oct 2010 20:59:03 GMT'}
{'version': 'v3', 'created': 'Sat, 8 Jan 2011 12:02:19 GMT'}]
|
2012-06-08
|
[array(['Brugnano', 'Luigi', ''], dtype=object)
array(['Iavernaro', 'Felice', ''], dtype=object)
array(['Trigiante', 'Donato', ''], dtype=object)]
|
16,794 |
1612.00567
|
Jiangming Liu
|
Jiangming Liu and Yue Zhang
|
Shift-Reduce Constituent Parsing with Neural Lookahead Features
| null | null | null | null |
cs.CL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Transition-based models can be fast and accurate for constituent parsing.
Compared with chart-based models, they leverage richer features by extracting
history information from a parser stack, which spans over non-local
constituents. On the other hand, during incremental parsing, constituent
information on the right hand side of the current word is not utilized, which
is a relative weakness of shift-reduce parsing. To address this limitation, we
leverage a fast neural model to extract lookahead features. In particular, we
build a bidirectional LSTM model, which leverages the full sentence information
to predict the hierarchy of constituents that each word starts and ends. The
results are then passed to a strong transition-based constituent parser as
lookahead features. The resulting parser gives 1.3% absolute improvement in WSJ
and 2.3% in CTB compared to the baseline, given the highest reported accuracies
for fully-supervised parsing.
|
[{'version': 'v1', 'created': 'Fri, 2 Dec 2016 04:55:24 GMT'}]
|
2016-12-05
|
[array(['Liu', 'Jiangming', ''], dtype=object)
array(['Zhang', 'Yue', ''], dtype=object)]
|
16,795 |
1610.02614
|
Li-chen Zhao Dr.
|
Li-Chen Zhao, Liming Ling, Zhan-Ying Yang, Wen-Li Yang
|
Tunneling Dynamics Between Atomic Bright Solitons
|
8 pages, 7 figures
|
Nonlinear Dyn. 88, 2957-2967 (2017)
|
10.1007/s11071-017-3424-2
| null |
nlin.PS physics.atom-ph quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigate tunneling behavior between two bright solitons in a
Bose-Einstein condensate with attractive contact interactions between atoms.
The explicit tunneling properties including tunneling particles and oscillation
period are described analytically, which indicates that the periodic tunneling
form is a nonlinear Josephson type oscillation. The results suggest that the
breathing behavior of solitons comes from the tunneling mechanism in an
effective double-well potential, which is quite different from the modulational
instability mechanism for Akhmediev breather and K-M breather. Furthermore, we
obtain a phase diagram for two soliton interaction which admits tunneling
property, particle-like property, interference property, and a resonant
interaction case. The explicit conditions for them are clarified based on the
defined critical distance $d_c$ and spatial interference period $D$.
|
[{'version': 'v1', 'created': 'Sun, 9 Oct 2016 02:02:45 GMT'}]
|
2018-02-13
|
[array(['Zhao', 'Li-Chen', ''], dtype=object)
array(['Ling', 'Liming', ''], dtype=object)
array(['Yang', 'Zhan-Ying', ''], dtype=object)
array(['Yang', 'Wen-Li', ''], dtype=object)]
|
16,796 |
1503.05181
|
Otis Chodosh
|
Otis Chodosh, Michael Eichmair, Alexander Volkmann
|
Isoperimetric structure of asymptotically conical manifolds
| null | null |
10.4310/jdg/1483655857
| null |
math.DG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the isoperimetric structure of Riemannian manifolds that are
asymptotic to cones with non-negative Ricci curvature. Specifically, we
generalize to this setting the seminal results of G. Huisken and S.-T. Yau on
the existence of a canonical foliation by volume preserving stable constant
mean curvature surfaces at infinity of asymptotically flat manifolds as well as
the results of the second-named author with S. Brendle and J. Metzger on the
isoperimetric structure of asymptotically flat manifolds. We also include an
observation on the isoperimetric cone angle of such manifolds. This result is a
natural analogue of the positive mass theorem in this setting.
|
[{'version': 'v1', 'created': 'Tue, 17 Mar 2015 19:42:55 GMT'}]
|
2019-07-01
|
[array(['Chodosh', 'Otis', ''], dtype=object)
array(['Eichmair', 'Michael', ''], dtype=object)
array(['Volkmann', 'Alexander', ''], dtype=object)]
|
16,797 |
1211.4357
|
Oliver Waldmann
|
A. Machens, N. P. Konstantinidis, O. Waldmann, I. Schneider, S. Eggert
|
The even-odd effect in short antiferromagnetic Heisenberg chains
|
25 pages, 16 figures
|
Phys. Rev. B 87, 144409 (2013)
|
10.1103/PhysRevB.87.144409
| null |
cond-mat.str-el cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Motivated by recent experiments on chemically synthesized magnetic molecular
chains we investigate the lowest lying energy band of short spin-$s$
antiferromagnetic Heisenberg chains focusing on effects of open boundaries. By
numerical diagonalization we find that the Land\'e pattern in the energy
levels, i.e. E(S) \propto S(S+1) for total spin S, known from e.g. ring-shaped
nanomagnets, can be recovered in odd-membered chains while strong deviations
are found for the lowest excitations in chains with an even number of sites.
This particular even-odd effect in the short Heisenberg chains cannot be
explained by simple effective Hamiltonians and symmetry arguments. We go beyond
these approaches, taking into account quantum fluctuations by means of a path
integral description and the valence bond basis, but the resulting quantum
edge-spin picture which is known to work well for long chains does not agree
with the numerical results for short chains and cannot explain the even-odd
effect. Instead, by analyzing also the classical chain model, we show that
spatial fluctuations dominate the physical behavior in short chains, with
length N < exp(\pi s), for any spin s. Such short chains are found to display a
unique behavior, which is not related to the thermodynamic limit and cannot be
described well by theories developed for this regime.
|
[{'version': 'v1', 'created': 'Mon, 19 Nov 2012 10:42:05 GMT'}]
|
2013-04-17
|
[array(['Machens', 'A.', ''], dtype=object)
array(['Konstantinidis', 'N. P.', ''], dtype=object)
array(['Waldmann', 'O.', ''], dtype=object)
array(['Schneider', 'I.', ''], dtype=object)
array(['Eggert', 'S.', ''], dtype=object)]
|
16,798 |
2208.10717
|
Dawei Chen
|
Dawei Chen
|
Complete curves in the strata of differentials
|
to appear in C. R. Math. Acad. Sci. Paris
| null | null | null |
math.AG math.GT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Gendron proved that the strata of holomorphic differentials with prescribed
orders of zeros do not contain complete algebraic curves by applying the
maximum modulus principle to saddle connections. Here we provide an alternative
proof for this result by using positivity of divisor classes on moduli spaces
of curves.
|
[{'version': 'v1', 'created': 'Tue, 23 Aug 2022 03:49:34 GMT'}]
|
2022-08-24
|
[array(['Chen', 'Dawei', ''], dtype=object)]
|
16,799 |
2107.11629
|
Ge-Peng Ji
|
Yi Zhang
|
ASOD60K: An Audio-Induced Salient Object Detection Dataset for Panoramic
Videos
|
22 pages, 17 figures, 7 tables (Project Page:
https://github.com/PanoAsh/ASOD60K) [new revision]
| null | null | null |
cs.CV
|
http://creativecommons.org/licenses/by/4.0/
|
Exploring to what humans pay attention in dynamic panoramic scenes is useful
for many fundamental applications, including augmented reality (AR) in retail,
AR-powered recruitment, and visual language navigation. With this goal in mind,
we propose PV-SOD, a new task that aims to segment salient objects from
panoramic videos. In contrast to existing fixation-/object-level saliency
detection tasks, we focus on audio-induced salient object detection (SOD),
where the salient objects are labeled with the guidance of audio-induced eye
movements. To support this task, we collect the first large-scale dataset,
named ASOD60K, which contains 4K-resolution video frames annotated with a
six-level hierarchy, thus distinguishing itself with richness, diversity and
quality. Specifically, each sequence is marked with both its super-/sub-class,
with objects of each sub-class being further annotated with human eye
fixations, bounding boxes, object-/instance-level masks, and associated
attributes (e.g., geometrical distortion). These coarse-to-fine annotations
enable detailed analysis for PV-SOD modelling, e.g., determining the major
challenges for existing SOD models, and predicting scanpaths to study the
long-term eye fixation behaviors of humans. We systematically benchmark 11
representative approaches on ASOD60K and derive several interesting findings.
We hope this study could serve as a good starting point for advancing SOD
research towards panoramic videos. The dataset and benchmark will be made
publicly available at https://github.com/PanoAsh/ASOD60K.
|
[{'version': 'v1', 'created': 'Sat, 24 Jul 2021 15:14:20 GMT'}
{'version': 'v2', 'created': 'Thu, 30 Sep 2021 12:16:35 GMT'}
{'version': 'v3', 'created': 'Wed, 20 Oct 2021 09:45:31 GMT'}
{'version': 'v4', 'created': 'Fri, 12 Nov 2021 07:14:34 GMT'}]
|
2021-11-15
|
[array(['Zhang', 'Yi', ''], dtype=object)]
|
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