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|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
17,000 |
1801.06984
|
Alexander Shashkin
|
M.Yu. Melnikov, A.A. Shashkin, V.T. Dolgopolov, G. Biasiol, S.
Roddaro, L. Sorba
|
Classical effects in the weak-field magnetoresistance of InGaAs/InAlAs
quantum wells
| null |
JETP Letters 107, 320 (2018)
|
10.1134/S0021364018050028
| null |
cond-mat.mes-hall cond-mat.dis-nn
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We observe an unusual behavior of the low-temperature magnetoresistance of
the high-mobility two-dimensional electron gas in InGaAs/InAlAs quantum wells
in weak perpendicular magnetic fields. The observed magnetoresistance is
qualitatively similar to that expected for the weak localization and
anti-localization but its quantity exceeds significantly the scale of the
quantum corrections. The calculations show that the obtained data can be
explained by the classical effects in electron motion along the open orbits in
a quasiperiodic potential relief manifested by the presence of ridges on the
quantum well surface.
|
[{'version': 'v1', 'created': 'Mon, 22 Jan 2018 08:08:34 GMT'}]
|
2018-04-30
|
[array(['Melnikov', 'M. Yu.', ''], dtype=object)
array(['Shashkin', 'A. A.', ''], dtype=object)
array(['Dolgopolov', 'V. T.', ''], dtype=object)
array(['Biasiol', 'G.', ''], dtype=object)
array(['Roddaro', 'S.', ''], dtype=object)
array(['Sorba', 'L.', ''], dtype=object)]
|
17,001 |
2210.08175
|
Niklas Elmqvist
|
Zhenpeng Zhao and Niklas Elmqvist
|
DataTV: Streaming Data Videos for Storytelling
|
16 pages
| null | null | null |
cs.HC
|
http://creativecommons.org/licenses/by/4.0/
|
Data videos -- motion graphics that incorporate visualizations -- have been
recognized as an effective way to communicate ideas, but creating such video
requires both time and expertise, precluding them from being created and
streamed live. We introduce DataTV, a system for combining multiple media
sources in real time. We validate our work through an expert review involving
researchers using the DataTV prototype to create a one-minute data video for
their current project. Results show that the new method facilitates rapid
creation and enables users to focus on the narrative rather than mechanics of
video production.
|
[{'version': 'v1', 'created': 'Sat, 15 Oct 2022 03:23:05 GMT'}]
|
2022-10-18
|
[array(['Zhao', 'Zhenpeng', ''], dtype=object)
array(['Elmqvist', 'Niklas', ''], dtype=object)]
|
17,002 |
2101.10118
|
Dan Vollick
|
Dan N. Vollick
|
Lagrangian and Hamiltonian Formulation of Classical Electrodynamics
without Potentials
| null |
Eur. Phys. J. Plus 132, 445 (2017)
| null | null |
physics.class-ph gr-qc
|
http://creativecommons.org/licenses/by/4.0/
|
In the standard Lagrangian and Hamiltonian approach to Maxwell's theory the
potentials $A^{\mu}$ are taken as the dynamical variables. In this paper I take
the electric field $\vec{E}$ and the magnetic field $\vec{B}$ as the the
dynamical variables. I find a Lagrangian that gives the dynamical Maxwell
equations and include the constraint equations by using Lagrange multipliers.
In passing to the Hamiltonian one finds that the canonical momenta
$\vec{\Pi}_E$ and $\vec{\Pi}_B$ are constrained giving 6 second class
constraints at each point in space. Gauss's law and
$\vec{\nabla}\cdot\vec{B}=0$ can than be added in as additional constraints.
There are now 8 second class constraints, leaving 4 phase space degrees of
freedom. The Dirac bracket is then introduced and is calculated for the field
variables and their conjugate momenta.
|
[{'version': 'v1', 'created': 'Thu, 21 Jan 2021 22:01:59 GMT'}]
|
2021-01-26
|
[array(['Vollick', 'Dan N.', ''], dtype=object)]
|
17,003 |
2207.00054
|
Christoph Matthies
|
Christoph Matthies, Mary S\'anchez-Gord\'on, Jens B{\ae}k
J{\o}rgensen, Lutz Prechelt
|
"Communication Is a Scarce Resource!'': A Summary of CHASE'22 Conference
Discussions
| null | null | null | null |
cs.SE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Background: Software Engineering regularly views communication between
project participants as a tool for solving various problems in software
development. Objective: Formulate research questions in areas related to CHASE.
Method: A day-long discussion of five participants at the in-person day of the
15th International Conference on Cooperative and Human Aspects of Software
Engineering (CHASE 2022) on May 23rd 2022. Results: It is not rare in
industrial SE projects that communication is not just a tool or technique to be
applied but also represents a resource, which, when lacking, threatens project
success. This situation might arise when a person required to make decisions
(especially regarding requirements, budgets, or priorities) is often
unavailable. It may be helpful to frame communication as a scarce resource to
understand the key difficulty of such situations. Conclusion: We call for
studies that focus on the allocation and management of scarce communication
resources of stakeholders as a lens to analyze software engineering projects.
|
[{'version': 'v1', 'created': 'Thu, 30 Jun 2022 18:39:46 GMT'}]
|
2022-07-04
|
[array(['Matthies', 'Christoph', ''], dtype=object)
array(['Sánchez-Gordón', 'Mary', ''], dtype=object)
array(['Jørgensen', 'Jens Bæk', ''], dtype=object)
array(['Prechelt', 'Lutz', ''], dtype=object)]
|
17,004 |
2303.01348
|
Yugo Takada
|
Yugo Takada, Yusaku Takeuchi, Keisuke Fujii
|
Highly accurate decoder for topological color codes with simulated
annealing
|
13 pages, 12 figures
| null | null | null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Quantum error correction is an essential ingredient for reliable quantum
computation for theoretically provable quantum speedup. Topological color
codes, one of the quantum error correction codes, have an advantage against the
surface codes in that all Clifford gates can be implemented transversely.
However, the hardness of decoding makes the color codes not suitable as the
best candidate for experimentally feasible implementation of quantum error
correction. Here we propose a highly accurate decoding scheme for the color
codes using simulated annealing. In this scheme, we map stabilizer operators to
classical spin variables to represent an error satisfying the syndrome. Then we
construct an Ising Hamiltonian that counts the number of errors and formulate
the decoding problem as an energy minimization problem of an Ising Hamiltonian,
which is solved by simulated annealing. In numerical simulations on the (4.8.8)
lattice, we find an error threshold of 10.36(5)% for bit-flip noise model,
18.47(5)% for depolarizing noise model, and 2.90(4)% for phenomenological noise
model, all of which are higher than the thresholds of existing efficient
decoding algorithms. Furthermore, we verify that the achieved logical error
rates are almost optimal in the sense that they are almost the same as those
obtained by exact optimizations by CPLEX with smaller decoding time in many
cases. Since the decoding process has been a bottleneck for performance
analysis, the proposed decoding method is useful for further exploration of the
possibility of the topological color codes.
|
[{'version': 'v1', 'created': 'Thu, 2 Mar 2023 15:28:08 GMT'}
{'version': 'v2', 'created': 'Mon, 22 May 2023 16:07:40 GMT'}]
|
2023-05-23
|
[array(['Takada', 'Yugo', ''], dtype=object)
array(['Takeuchi', 'Yusaku', ''], dtype=object)
array(['Fujii', 'Keisuke', ''], dtype=object)]
|
17,005 |
cond-mat/0312477
|
Ines Safi
|
Ines Safi (Orsay, France) and Hubert Saleur (Saclay, France)
|
A one-channel conductor in an ohmic environment: mapping to a TLL and
full counting statistics
|
5 pages, 2 figures, shortened version for publication in Phys. Rev.
Lett
| null |
10.1103/PhysRevLett.93.126602
| null |
cond-mat.mes-hall cond-mat.str-el
| null |
It is shown that a one-channel mesoscopic conductor in an ohmic environment
can be mapped to the problem of a backscattering impurity in a
Tomonaga-Luttinger liquid (TLL). This allows to determine non perturbatively
the effect of the environment on $I-V$ curves, and to find an exact
relationship between dynamic Coulomb blockade and shot noise. We investigate
critically how this relationship compares to recent proposals in the
literature. The full counting statistics is determined at zero temperature.
|
[{'version': 'v1', 'created': 'Thu, 18 Dec 2003 14:06:23 GMT'}
{'version': 'v2', 'created': 'Mon, 14 Jun 2004 10:49:29 GMT'}]
|
2009-11-10
|
[array(['Safi', 'Ines', '', 'Orsay, France'], dtype=object)
array(['Saleur', 'Hubert', '', 'Saclay, France'], dtype=object)]
|
17,006 |
hep-th/9507106
|
Hong
|
R. Hong Tuan
|
Factorization of Spanning Trees on Feynman Graphs
|
47 pages, Plain Tex, 3 PostScript figures
| null | null |
LPTHE Orsay 92/59
|
hep-th
| null |
In order to use the Gaussian representation for propagators in Feynman
amplitudes, a representation which is useful to relate string theory and field
theory, one has to prove first that each $\alpha$- parameter (where $\alpha$ is
the parameter associated to each propagator in the $\alpha$-representation of
the Feynman amplitudes) can be replaced by a constant instead of being
integrated over and second, prove that this constant can be taken equal for all
propagators of a given graph. The first proposition has been proven in one
recent letter when the number of propagators is infinite. Here we prove the
second one. In order to achieve this, we demonstrate that the sum over the
weighted spanning trees of a Feynman graph $G$ can be factorized for disjoint
parts of $G$. The same can also be done for cuts on $G$, resulting in a
rigorous derivation of the Gaussian representation for super-renormalizable
scalar field theories. As a by-product spanning trees on Feynman graphs can be
used to define a discretized functional space.
|
[{'version': 'v1', 'created': 'Thu, 20 Jul 1995 14:10:27 GMT'}]
|
2007-05-23
|
[array(['Tuan', 'R. Hong', ''], dtype=object)]
|
17,007 |
gr-qc/9910076
|
Tetsuya Shiromizu
|
Tetsuya Shiromizu, Kei-ichi Maeda, Misao Sasaki
|
The Einstein Equations on the 3-Brane World
|
8 pages, references added
|
Phys.Rev.D62:024012,2000
|
10.1103/PhysRevD.62.024012
|
DAMTP-1999-150; NI99018-SFU; UTAP-349; RESCEU-40/99; WU-AP/85/99;
OUTAP-103
|
gr-qc astro-ph hep-ph hep-th
| null |
We carefully investigate the gravitational equations of the brane world, in
which all the matter forces except gravity are confined on the 3-brane in a
5-dimensional spacetime with $Z_2$ symmetry.
We derive the effective gravitational equations on the brane, which reduce to
the conventional Einstein equations in the low energy limit. {}From our general
argument we conclude that the first Randall & Sundrum-type theory (RS1)
[hep-ph/9905221] predicts that the brane with the negative tension is an
anti-gravity world and hence should be excluded from the physical point of
view. Their second-type theory (RS2) [hep-th/9906064] where the brane has the
positive tension provides the correct signature of gravity. In this latter
case, if the bulk spacetime is exactly anti-de Sitter, generically the matter
on the brane is required to be spatially homogeneous because of the Bianchi
identities. By allowing deviations from anti-de Sitter in the bulk, the
situation will be relaxed and the Bianchi identities give just the relation
between the Weyl tensor and the energy momentum tensor. In the present brane
world scenario, the effective Einstein equations cease to be valid during an
era when the cosmological constant on the brane is not well-defined, such as in
the case of the matter dominated by the potential energy of the scalar field.
|
[{'version': 'v1', 'created': 'Fri, 22 Oct 1999 09:33:09 GMT'}
{'version': 'v2', 'created': 'Mon, 25 Oct 1999 11:06:29 GMT'}
{'version': 'v3', 'created': 'Mon, 17 Jan 2000 11:21:52 GMT'}]
|
2009-10-09
|
[array(['Shiromizu', 'Tetsuya', ''], dtype=object)
array(['Maeda', 'Kei-ichi', ''], dtype=object)
array(['Sasaki', 'Misao', ''], dtype=object)]
|
17,008 |
1012.1981
|
Gino Isidori
|
Gino Isidori
|
The Challenges of Flavour Physics
|
13 pages, plenary talk at ICHEP 2010 (Paris, July 22-28, 2010). V2: A
few typos corrected and a few refs added
| null | null | null |
hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The open problems and the most recent developments in flavour physics are
briefly reviewed. Particular attention is devoted to the current "anomalies" in
the CKM picture and their possible interpretation in beyond-the-Standard-Model
frameworks.
|
[{'version': 'v1', 'created': 'Thu, 9 Dec 2010 11:41:53 GMT'}
{'version': 'v2', 'created': 'Mon, 13 Dec 2010 10:32:20 GMT'}]
|
2010-12-14
|
[array(['Isidori', 'Gino', ''], dtype=object)]
|
17,009 |
0904.1260
|
M Zahid Hasan
|
D. Hsieh, Y. Xia, D. Qian, L. Wray, J. H. Dil, F. Meier, L. Patthey,
J. Osterwalder, A.V. Fedorov, H. Lin, A. Bansil, D. Grauer, Y.S. Hor, R.J.
Cava, M.Z. Hasan
|
First observation of spin-helical Dirac fermions and topological phases
in undoped and doped Bi2Te3 demonstrated by spin-ARPES spectroscopy
|
13 pages, 4 figures
|
Partial Results published at NATURE 460, 1101 (2009).
| null | null |
cond-mat.mes-hall cond-mat.other
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Electron systems that possess light-like dispersion relations or the conical
Dirac spectrum, such as graphene and bismuth, have recently been shown to
harbor unusual collective states in high magnetic fields. Such states are
possible because their light-like electrons come in spin pairs that are
chiral,which means that their direction of propagation is tied to a quantity
called pseudospin that describes their location in the crystal lattice. An
emerging direction in quantum materials research is the manipulation of atomic
spin-orbit coupling to simulate the effect of a spin dependent magnetic
field,in attempt to realize novel spin phases of matter. This effect has been
proposed to realize systems consisting of unpaired Dirac cones that are
helical, meaning their direction of propagation is tied to the electron spin
itself, which are forbidden to exist in graphene or bismuth. The experimental
existence of topological order can not be determined without spin-resolved
measurements. Here we report a spin-and angle-resolved photoemission study of
the hexagonal surface of the Bi2Te3 and Bi{2-x}MnxTe3 series, which is found to
exhibit a single helical Dirac cone that is fully spin-polarized. Our
observations of a gap in the bulk spin-degenerate band and a spin-resolved
surface Dirac node close to the chemical potential show that the low energy
dynamics of Bi2Te3 is dominated by the unpaired spin-helical Dirac modes. Our
spin-texture measurements prove the existence of a rare topological phase in
this materials class for the first time, and suggest its suitability for novel
2D Dirac spin device applications beyond the chiral variety or traditional
graphene.
|
[{'version': 'v1', 'created': 'Wed, 8 Apr 2009 04:08:48 GMT'}]
|
2009-10-08
|
[array(['Hsieh', 'D.', ''], dtype=object)
array(['Xia', 'Y.', ''], dtype=object)
array(['Qian', 'D.', ''], dtype=object)
array(['Wray', 'L.', ''], dtype=object)
array(['Dil', 'J. H.', ''], dtype=object)
array(['Meier', 'F.', ''], dtype=object)
array(['Patthey', 'L.', ''], dtype=object)
array(['Osterwalder', 'J.', ''], dtype=object)
array(['Fedorov', 'A. V.', ''], dtype=object)
array(['Lin', 'H.', ''], dtype=object)
array(['Bansil', 'A.', ''], dtype=object)
array(['Grauer', 'D.', ''], dtype=object)
array(['Hor', 'Y. S.', ''], dtype=object)
array(['Cava', 'R. J.', ''], dtype=object)
array(['Hasan', 'M. Z.', ''], dtype=object)]
|
17,010 |
0909.2870
|
George Papadopoulos
|
George Papadopoulos
|
Heterotic supersymmetric backgrounds with compact holonomy revisited
|
36 pages, changes in SU(2) holonomy solutions
|
Class.Quant.Grav.27:125008,2010
|
10.1088/0264-9381/27/12/125008
| null |
hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We simplify the classification of supersymmetric solutions with compact
holonomy of the Killing spinor equations of heterotic supergravity using the
field equations and the additional assumption that the 3-form flux is closed.
We determine all the fractions of supersymmetry that the solutions preserve and
find that there is a restriction on the number of supersymmetries which depends
on the isometry group of the background. We examine the geometry of spacetime
in all cases. We find that the supersymmetric solutions of heterotic
supergravity are associated with a large number of geometric structures which
include 7-dimensional manifolds with $G_2$ structure,
6-dimensional complex and almost complex manifolds, and 4-dimensional
hyper-K\"ahler, K\"ahler and anti-self-dual Weyl manifolds.
|
[{'version': 'v1', 'created': 'Wed, 16 Sep 2009 14:13:56 GMT'}
{'version': 'v2', 'created': 'Wed, 2 Dec 2009 18:49:26 GMT'}]
|
2010-05-07
|
[array(['Papadopoulos', 'George', ''], dtype=object)]
|
17,011 |
hep-th/0012125
| null |
I. Bakas, K. Sfetsos
|
Gravitational domain walls and p-brane distributions
|
13 pages, latex, no figures; contribution to the proceedings of the
RTN network "The quantum structure of spacetime and the geometric nature of
fundamental interactions", Berlin, 4-10 October 2000
|
Fortsch.Phys. 49 (2001) 419-431
|
10.1002/1521-3978(200105)49:4/6<419::AID-PROP419>3.3.CO;2-5
|
NEIP-00-021
|
hep-th
| null |
We review the main algebraic aspects that characterize and determine the
domain wall solutions of maximal gauged supergravity in various spacetime
dimensions by considering consistent truncations that retain a number of
components in the diagonal of the coset space scalar manifold of the theory.
Starting from the algebraic classification of domain walls in D=4 gauged
supergravity, we also derive the corresponding solutions in D=5 and D=7
dimensions. From a higher dimensional point of view, these solutions describe
the gravitatonal field, in the field theory limit, of a large number of M2-,
D3- and M5-branes that are distributed on hypersurfaces in the transverse space
to the branes. As a new result we employ a smearing procedure as well as
various dualities to list the irreducible curves and the symmetry groups of
p-brane distributions for all values of p that are of interest in current
applications of string theory. Some emphasis is placed on the presentation of
new results in the case of NS5-branes.
|
[{'version': 'v1', 'created': 'Thu, 14 Dec 2000 18:36:37 GMT'}]
|
2015-06-25
|
[array(['Bakas', 'I.', ''], dtype=object)
array(['Sfetsos', 'K.', ''], dtype=object)]
|
17,012 |
1803.02141
|
Danijel Krizmani\'c
|
Danijel Krizmanic
|
A note on joint functional convergence of partial sum and maxima for
linear processes
|
7 pages
| null | null | null |
math.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Recently, for the joint partial sum and partial maxima processes constructed
from linear processes with independent identically distributed innovations that
are regularly varying with tail index $\alpha \in (0, 2)$, a functional limit
theorem with the Skorohod weak $M_{2}$ topology has been obtained. In this
paper we show that, if all the coefficients of the linear processes are of the
same sign, the functional convergence holds in the stronger topology, i.e. in
the Skorohod weak $M_{1}$ topology on the space of $\mathbb{R}^{2}$--valued
c\`{a}dl\`{a}g functions on $[0, 1]$.
|
[{'version': 'v1', 'created': 'Tue, 6 Mar 2018 12:35:47 GMT'}]
|
2018-03-07
|
[array(['Krizmanic', 'Danijel', ''], dtype=object)]
|
17,013 |
1703.03193
|
Taisuke Sato
|
Taisuke Sato
|
Embedding Tarskian Semantics in Vector Spaces
|
7 pages, AAAI-17 Workshop on Symbolic Inference and Optimization
| null | null | null |
cs.AI cs.LO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We propose a new linear algebraic approach to the computation of Tarskian
semantics in logic. We embed a finite model M in first-order logic with N
entities in N-dimensional Euclidean space R^N by mapping entities of M to N
dimensional one-hot vectors and k-ary relations to order-k adjacency tensors
(multi-way arrays). Second given a logical formula F in prenex normal form, we
compile F into a set Sigma_F of algebraic formulas in multi-linear algebra with
a nonlinear operation. In this compilation, existential quantifiers are
compiled into a specific type of tensors, e.g., identity matrices in the case
of quantifying two occurrences of a variable. It is shown that a systematic
evaluation of Sigma_F in R^N gives the truth value, 1(true) or 0(false), of F
in M. Based on this framework, we also propose an unprecedented way of
computing the least models defined by Datalog programs in linear spaces via
matrix equations and empirically show its effectiveness compared to
state-of-the-art approaches.
|
[{'version': 'v1', 'created': 'Thu, 9 Mar 2017 09:30:01 GMT'}]
|
2017-03-10
|
[array(['Sato', 'Taisuke', ''], dtype=object)]
|
17,014 |
hep-th/0407079
|
Hossein Yavartanoo
|
Hossein Yavartanoo
|
Cosmological Solution from D-brane motion in NS5-Branes background
|
15 pages, To appear in International Journal of Modern Physics A
|
Int.J.Mod.Phys. A20 (2005) 7633-7645
|
10.1142/S0217751X05022329
| null |
hep-th
| null |
We study dynamics of a D3-brane propagating in the vicinity of k coincident
NS5 branes. We show that when $g_s$ is small, there exists a regime in which
dynamics of the D-brane is governed by Dirac-Born-Infeld action while higher
order derivative in the expansion can not be neglected. This leads to a
restriction on how fast scalar field may roll. We analyze the motion of a
rolling scalar field in this regime, and extend the analysis to cosmological
systems obtained by coupling this type of field theory to four dimensinal
gravity. It also leads to some FRW cosmologies, some of which are related to
those obtained with tachyon matter.
|
[{'version': 'v1', 'created': 'Sat, 10 Jul 2004 22:26:40 GMT'}
{'version': 'v2', 'created': 'Sun, 18 Jul 2004 16:41:54 GMT'}
{'version': 'v3', 'created': 'Mon, 20 Sep 2004 16:46:10 GMT'}
{'version': 'v4', 'created': 'Wed, 13 Apr 2005 07:27:37 GMT'}]
|
2009-11-10
|
[array(['Yavartanoo', 'Hossein', ''], dtype=object)]
|
17,015 |
1911.05169
|
Jorge Francisco Barreras
|
Francisco Barreras (1), Mikhail Hayhoe (1), Hamed Hassani (1) and
Victor M. Preciado (1) ((1) University of Pennsylvania)
|
New bounds on the spectral radius of graphs based on the moment problem
| null | null | null | null |
math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $\mathcal{G}$ be an undirected graph with adjacency matrix $A$ and
spectral radius $\rho$. Let $w_k, \phi_k$ and $\phi_k^{(i)}$ be, respectively,
the number walks of length $k$, closed walks of length $k$ and closed walks
starting and ending at vertex $i$ after $k$ steps. In this paper, we propose a
measure-theoretic framework which allows us to relate walks in a graph with its
spectral properties. In particular, we show that $w_k, \phi_k$ and
$\phi_k^{(i)}$ can be interpreted as the moments of three different measures,
all of them supported on the spectrum of $A$. Building on this interpretation,
we leverage results from the classical moment problem to formulate a hierarchy
of new lower and upper bounds on $\rho$, as well as provide alternative proofs
to several well-known bounds in the literature.
|
[{'version': 'v1', 'created': 'Tue, 12 Nov 2019 22:17:06 GMT'}
{'version': 'v2', 'created': 'Tue, 4 Aug 2020 21:07:45 GMT'}]
|
2020-08-06
|
[array(['Barreras', 'Francisco', '', 'University of Pennsylvania'],
dtype=object)
array(['Hayhoe', 'Mikhail', '', 'University of Pennsylvania'],
dtype=object)
array(['Hassani', 'Hamed', '', 'University of Pennsylvania'], dtype=object)
array(['Preciado', 'Victor M.', '', 'University of Pennsylvania'],
dtype=object) ]
|
17,016 |
1004.2559
|
Giuseppe Bono
|
G. Bono, P. B. Stetson, A. R. Walker, M. Monelli, M. Fabrizio, A.
Pietrinferni, E. Brocato, R. Buonanno, F. Caputo, S. Cassisi, M. Castellani,
M. Cignoni, C. E. Corsi, M. Dall'Ora, S. Degl'Innocenti, P. Francois, I.
Ferraro, G. Iannicola, M. Nonino, P. G. Prada Moroni, L. Pulone, H. A. Smith,
F. Thevenin
|
On the stellar content of the Carina dwarf spheroidal galaxy
|
Accepted on PASP, 12 pages, 6 figures
| null |
10.1086/653590
| null |
astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present U,B,V,I photometry of the Carina dwarf spheroidal galaxy, based on
more than 4,000 CCD images. Special attention was given to the photometric
calibration, and the precision for the B,V,I bands is better than 0.01 mag. We
compared in the V,B-V and V,B-I color-magnitude diagrams (CMDs) Carina with
three Globular Clusters (GCs, M53, M55, M79). We find that only the more
metal-poor GCs (M55, [Fe/H]=-1.85; M53, [Fe/H]=-2.02 dex) provide a good match
with the Carina giant branch. We performed a similar comparison in the V,V-I
CMD with three SMC intermediate-age clusters (IACs, Kron3, NGC339, Lindsay38).
We find that the color extent of the SGB of the two more metal-rich IACs
(Kron3, [Fe/H]=-1.08; NGC339, [Fe/H]=-1.36 dex) is smaller than the range among
Carina's intermediate-age stars. However, the ridge line of the more metal-poor
IAC (Lindsay38, [Fe/H]=-1.59 dex) agrees quite well with the Carina
intermediate-age stars. These findings indicate that Carina's old stellar
population is metal-poor and seems to have a limited spread in metallicity
(Delta [Fe/H]=0.2--0.3 dex). Carina intermediate-age stars can hardly be more
metal-rich than Lindsay38 and its spread in metallicity appears modest. We also
find that the synthetic CMD constructed assuming a metallicity spread of 0.5
dex for intermediate-age stars predicts evolutionary features not supported by
observations. The above results are at odds with recent spectroscopic
investigations suggesting that Carina stars cover a broad range in metallicity
(Delta [Fe/H]~1--2 dex). We present a new method to estimate the metallicity of
complex stellar systems using the difference in color between the red clump and
the middle of the RR Lyrae instability strip. The observed colors of Carina's
evolved stars indicate a metallicity of [Fe/H]=-1.70+-0.19 dex, which agrees
quite well with spectroscopic measurements.
|
[{'version': 'v1', 'created': 'Thu, 15 Apr 2010 06:07:45 GMT'}]
|
2015-05-18
|
[array(['Bono', 'G.', ''], dtype=object)
array(['Stetson', 'P. B.', ''], dtype=object)
array(['Walker', 'A. R.', ''], dtype=object)
array(['Monelli', 'M.', ''], dtype=object)
array(['Fabrizio', 'M.', ''], dtype=object)
array(['Pietrinferni', 'A.', ''], dtype=object)
array(['Brocato', 'E.', ''], dtype=object)
array(['Buonanno', 'R.', ''], dtype=object)
array(['Caputo', 'F.', ''], dtype=object)
array(['Cassisi', 'S.', ''], dtype=object)
array(['Castellani', 'M.', ''], dtype=object)
array(['Cignoni', 'M.', ''], dtype=object)
array(['Corsi', 'C. E.', ''], dtype=object)
array(["Dall'Ora", 'M.', ''], dtype=object)
array(["Degl'Innocenti", 'S.', ''], dtype=object)
array(['Francois', 'P.', ''], dtype=object)
array(['Ferraro', 'I.', ''], dtype=object)
array(['Iannicola', 'G.', ''], dtype=object)
array(['Nonino', 'M.', ''], dtype=object)
array(['Moroni', 'P. G. Prada', ''], dtype=object)
array(['Pulone', 'L.', ''], dtype=object)
array(['Smith', 'H. A.', ''], dtype=object)
array(['Thevenin', 'F.', ''], dtype=object)]
|
17,017 |
2303.16047
|
Zhi Chen
|
Zhi Chen, Chudi Zhong, Margo Seltzer, Cynthia Rudin
|
Understanding and Exploring the Whole Set of Good Sparse Generalized
Additive Models
| null | null | null | null |
cs.LG cs.AI stat.ML
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In real applications, interaction between machine learning model and domain
experts is critical; however, the classical machine learning paradigm that
usually produces only a single model does not facilitate such interaction.
Approximating and exploring the Rashomon set, i.e., the set of all near-optimal
models, addresses this practical challenge by providing the user with a
searchable space containing a diverse set of models from which domain experts
can choose. We present a technique to efficiently and accurately approximate
the Rashomon set of sparse, generalized additive models (GAMs). We present
algorithms to approximate the Rashomon set of GAMs with ellipsoids for fixed
support sets and use these ellipsoids to approximate Rashomon sets for many
different support sets. The approximated Rashomon set serves as a cornerstone
to solve practical challenges such as (1) studying the variable importance for
the model class; (2) finding models under user-specified constraints
(monotonicity, direct editing); (3) investigating sudden changes in the shape
functions. Experiments demonstrate the fidelity of the approximated Rashomon
set and its effectiveness in solving practical challenges.
|
[{'version': 'v1', 'created': 'Tue, 28 Mar 2023 15:25:46 GMT'}]
|
2023-03-29
|
[array(['Chen', 'Zhi', ''], dtype=object)
array(['Zhong', 'Chudi', ''], dtype=object)
array(['Seltzer', 'Margo', ''], dtype=object)
array(['Rudin', 'Cynthia', ''], dtype=object)]
|
17,018 |
1910.07348
|
Sergey Fedoruk
|
Sergey Fedoruk
|
$\mathcal{N}{=}\,2$ supersymmetric hyperbolic Calogero-Sutherland model
|
1+16 pages; v3: references and some clarifications added, typos
corrected
|
Nuclear Physics B Volume 953, April 2020, 114977
|
10.1016/j.nuclphysb.2020.114977
| null |
hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The $\mathcal{N}{=}\,2$ supersymmetric hyperbolic Calogero-Sutherland model
obtained in arXiv:1902.08023 by gauging the $\mathcal{N}{=}\,2$ superfield
matrix system is studied. Classical and quantum $\mathcal{N}{=}\,2$
supersymmetry generators are found. The difference in the structure of
classical and quantum supercharges is established. It is shown that, unlike
classical supercharges, quantum supersymmetry generators can be limited to an
invariant sub-sector that does not contain off-diagonal fermion operators. The
Lax pair for supersymmetric generalization of the hyperbolic
Calogero-Sutherland system is constructed.
|
[{'version': 'v1', 'created': 'Wed, 16 Oct 2019 13:53:50 GMT'}
{'version': 'v2', 'created': 'Fri, 25 Oct 2019 11:08:48 GMT'}
{'version': 'v3', 'created': 'Tue, 11 Feb 2020 14:25:44 GMT'}]
|
2020-12-15
|
[array(['Fedoruk', 'Sergey', ''], dtype=object)]
|
17,019 |
1001.0286
|
P\'eter Veres
|
P. Veres, I. Horvath, Z. Bagoly, L.G. Balazs, A.Meszaros, G. Tusnady,
F. Ryde
|
Model Independent Methods of Describing GRB Spectra Using BATSE MER Data
|
3 pages, one figure
|
2006NCimB.121.1609V
|
10.1393/ncb/i2007-10331-9
| null |
astro-ph.CO astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The Gamma Ray Inverse Problem is discussed. Four methods of spectral
deconvolution are presented here and applied to the BATSE's MER data type. We
compare these to the Band spectra.
|
[{'version': 'v1', 'created': 'Sat, 2 Jan 2010 08:03:38 GMT'}]
|
2010-01-05
|
[array(['Veres', 'P.', ''], dtype=object)
array(['Horvath', 'I.', ''], dtype=object)
array(['Bagoly', 'Z.', ''], dtype=object)
array(['Balazs', 'L. G.', ''], dtype=object)
array(['Meszaros', 'A.', ''], dtype=object)
array(['Tusnady', 'G.', ''], dtype=object)
array(['Ryde', 'F.', ''], dtype=object)]
|
17,020 |
2001.04265
|
Alexander Chunikhin
|
Alexander Yu. Chunikhin, Marina D. Sviatnenko
|
On Concept of Petri Nets Receptors and Effectors
|
11 pages, 16 figures. arXiv admin note: text overlap with
arXiv:1910.09326
| null | null |
PIBNASU-2019/12
|
cs.LO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
New subclasses of Petri nets - Petri nets receptors and Petri nets effectors
are introduced. The introduction/exclusion of such substructures in the main
Petri net may be fulfilled in accordance with the Fusion/Defusion principles.
We propose two pairs of entities: position marking receptor (effector) and
transition marking receptor (effector), which allow to observe parameters of
the main Petri net and, if necessary, to carry out their regulation.
|
[{'version': 'v1', 'created': 'Wed, 18 Dec 2019 18:17:22 GMT'}]
|
2020-01-14
|
[array(['Chunikhin', 'Alexander Yu.', ''], dtype=object)
array(['Sviatnenko', 'Marina D.', ''], dtype=object)]
|
17,021 |
1905.02875
|
Ronald Rousseau
|
Xiaojun Hu, Ronald Rousseau, Sandra Rousseau
|
Does Environmental Economics lead to patentable research?
|
10 pages, 4 tables
| null | null | null |
cs.DL econ.GN q-fin.EC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this feasibility study, the impact of academic research from social
sciences and humanities on technological innovation is explored through a study
of citations patterns of journal articles in patents. Specifically we focus on
citations of journals from the field of environmental economics in patents
included in an American patent database (USPTO). Three decades of patents have
led to a small set of journal articles (85) that are being cited from the field
of environmental economics. While this route of measuring how academic research
is validated through its role in stimulating technological progress may be
rather limited (based on this first exploration), it may still point to a
valuable and interesting topic for further research.
|
[{'version': 'v1', 'created': 'Tue, 7 May 2019 07:17:24 GMT'}]
|
2019-05-09
|
[array(['Hu', 'Xiaojun', ''], dtype=object)
array(['Rousseau', 'Ronald', ''], dtype=object)
array(['Rousseau', 'Sandra', ''], dtype=object)]
|
17,022 |
1409.0672
|
Can Gao
|
Can Gao
|
Full blow-up range for co-rotaional wave maps to surfaces of revolution
| null | null | null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We construct blow-up solutions of the energy critical wave map equation on
$\mathbb{R}^{2+1}\to \mathcal N$ with polynomial blow-up rate ($t^{-1-\nu}$ for
blow-up at $t=0$) in the case when $\mathcal{N}$ is a surface of revolution.
Here we extend the blow-up range found by C\^arstea ($\nu>\frac 12$) based on
the work by Krieger, Schlag and Tataru to $\nu>0$. This work relies on and
generalizes the recent result of Krieger and the author where the target
manifold is chosen as the standard sphere.
|
[{'version': 'v1', 'created': 'Tue, 2 Sep 2014 11:43:02 GMT'}]
|
2014-09-03
|
[array(['Gao', 'Can', ''], dtype=object)]
|
17,023 |
2106.13282
|
Kevin Gross
|
Kevin Gross and Carl T. Bergstrom
|
Why ex post peer review encourages high-risk research while ex ante
review discourages it
|
11 pages, 4 figures, 1 appendix. Version 2 includes revamped notation
and some text edits to the discussion
| null |
10.1073/pnas.2111615118
| null |
cs.DL physics.soc-ph
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
Peer review is an integral component of contemporary science. While peer
review focuses attention on promising and interesting science, it also
encourages scientists to pursue some questions at the expense of others. Here,
we use ideas from forecasting assessment to examine how two modes of peer
review -- ex ante review of proposals for future work and ex post review of
completed science -- motivate scientists to favor some questions instead of
others. Our main result is that ex ante and ex post peer review push
investigators toward distinct sets of scientific questions. This tension arises
because ex post review allows an investigator to leverage her own scientific
beliefs to generate results that others will find surprising, whereas ex ante
review does not. Moreover, ex ante review will favor different research
questions depending on whether reviewers rank proposals in anticipation of
changes to their own personal beliefs, or to the beliefs of their peers. The
tension between ex ante and ex post review puts investigators in a bind,
because most researchers need to find projects that will survive both. By
unpacking the tension between these two modes of review, we can understand how
they shape the landscape of science and how changes to peer review might shift
scientific activity in unforeseen directions.
|
[{'version': 'v1', 'created': 'Thu, 24 Jun 2021 19:09:21 GMT'}
{'version': 'v2', 'created': 'Tue, 28 Sep 2021 23:09:33 GMT'}]
|
2022-10-12
|
[array(['Gross', 'Kevin', ''], dtype=object)
array(['Bergstrom', 'Carl T.', ''], dtype=object)]
|
17,024 |
2108.06492
|
Weiming Zhuang
|
Weiming Zhuang, Xin Gan, Yonggang Wen, Shuai Zhang, Shuai Yi
|
Collaborative Unsupervised Visual Representation Learning from
Decentralized Data
|
ICCV'21
| null | null | null |
cs.DC cs.AI cs.CV cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Unsupervised representation learning has achieved outstanding performances
using centralized data available on the Internet. However, the increasing
awareness of privacy protection limits sharing of decentralized unlabeled image
data that grows explosively in multiple parties (e.g., mobile phones and
cameras). As such, a natural problem is how to leverage these data to learn
visual representations for downstream tasks while preserving data privacy. To
address this problem, we propose a novel federated unsupervised learning
framework, FedU. In this framework, each party trains models from unlabeled
data independently using contrastive learning with an online network and a
target network. Then, a central server aggregates trained models and updates
clients' models with the aggregated model. It preserves data privacy as each
party only has access to its raw data. Decentralized data among multiple
parties are normally non-independent and identically distributed (non-IID),
leading to performance degradation. To tackle this challenge, we propose two
simple but effective methods: 1) We design the communication protocol to upload
only the encoders of online networks for server aggregation and update them
with the aggregated encoder; 2) We introduce a new module to dynamically decide
how to update predictors based on the divergence caused by non-IID. The
predictor is the other component of the online network. Extensive experiments
and ablations demonstrate the effectiveness and significance of FedU. It
outperforms training with only one party by over 5% and other methods by over
14% in linear and semi-supervised evaluation on non-IID data.
|
[{'version': 'v1', 'created': 'Sat, 14 Aug 2021 08:34:11 GMT'}]
|
2021-08-17
|
[array(['Zhuang', 'Weiming', ''], dtype=object)
array(['Gan', 'Xin', ''], dtype=object)
array(['Wen', 'Yonggang', ''], dtype=object)
array(['Zhang', 'Shuai', ''], dtype=object)
array(['Yi', 'Shuai', ''], dtype=object)]
|
17,025 |
2206.01998
|
Subrata Ghosh
|
Subrata Ghosh, S. R. Polaki, Gopinath Sahoo, En-Mei Jin, M. Kamruddin,
Jung Sang Cho, Sang Mun Jeong
|
Metal Oxide-Vertical Graphene Nanosheets for 2.6 V Aqueous
Electrochemical Hybrid Capacitor
|
18 pages, 7 figures, 1 tables
|
J. Indust. Eng. Chem. 72, (2019), 107-116
|
10.1016/j.jiec.2018.12.008
| null |
cond-mat.mtrl-sci physics.app-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Aqueous asymmetric electrochemical capacitor, with their high power density
and superior cycle stability in comparison to conventional batteries, are
presently considered as the most promising contender for energy storage.
However, fabricating an electrode material and choosing a suitable aqueous
electrolyte are vital in developing an electrochemical capacitor device with
high charge storage capacity. Herein, we report a feasible method to synthesize
MnO2/Vertical graphene nanosheets (VGN) and Fe2O3/VGN as positive and negative
electrodes, respectively. The surface of VGN skeleton is independently
decorated with MnO2 having sponge gourd-like morphology and Fe2O3 having
nanorice like morphology. A schematic representation of the growth mechanism
for metal oxide on VGN network is established. Both the electrode have shown
around 250 times higher charge-storage capacity than the bare VGN (0.47 mF/cm2)
with the specific capacitance of 118 (MnO2/VGN) and 151 mF/cm2 (Fe2O3/VGN). In
addition to the double layer capacitance contribution, the porous
interconnected vertical graphene architecture serves as a mechanical backbone
for the metal oxide materials and provides multiple conducting channels for the
electron transport. The fabricated asymmetric device exhibited a specific
capacitance of 76 mF/cm2 and energy density of 71 microWh/cm2 with an excellent
electrochemical stability up to 12000 cycles, over a potential window of 2.6 V.
The commendable performance of asymmetric electrochemical capacitor device
authenticated its potential utilization for next-generation portable energy
storage device.
|
[{'version': 'v1', 'created': 'Sat, 4 Jun 2022 14:26:29 GMT'}]
|
2022-06-07
|
[array(['Ghosh', 'Subrata', ''], dtype=object)
array(['Polaki', 'S. R.', ''], dtype=object)
array(['Sahoo', 'Gopinath', ''], dtype=object)
array(['Jin', 'En-Mei', ''], dtype=object)
array(['Kamruddin', 'M.', ''], dtype=object)
array(['Cho', 'Jung Sang', ''], dtype=object)
array(['Jeong', 'Sang Mun', ''], dtype=object)]
|
17,026 |
1901.04209
|
Baruch Meerson
|
Baruch Meerson and Naftali R. Smith
|
Geometrical optics of constrained Brownian motion: three short stories
|
13 pages, 7 figures
|
J. Phys. A: Math. Theor. 52, 415001 (2019)
|
10.1088/1751-8121/ab3f0f
| null |
cond-mat.stat-mech
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The optimal fluctuation method -- essentially geometrical optics -- gives a
deep insight into large deviations of Brownian motion. Here we illustrate this
point by telling three short stories about Brownian motions, "pushed" into a
large-deviation regime by constraints. In story 1 we compute the short-time
large deviation function (LDF) of the winding angle of a Brownian particle
wandering around a reflecting disk in the plane. Story 2 addresses a stretched
Brownian motion above absorbing obstacles in the plane. We compute the
short-time LDF of the position of the surviving Brownian particle at an
intermediate point. Story 3 deals with survival of a Brownian particle in 1+1
dimension against absorption by a wall which advances according to a power law
$x_{\text{w}}\left(t\right)\sim t^{\gamma}$, where $\gamma>1/2$. We also
calculate the LDF of the particle position at an earlier time, conditional on
the survival by a later time. In all three stories we uncover singularities of
the LDFs which have a simple geometric origin and can be interpreted as
dynamical phase transitions. We also use the small-deviation limit of the
geometrical optics to reconstruct the distribution of \emph{typical}
fluctuations. We argue that, in stories 2 and 3, this is the Ferrari-Spohn
distribution.
|
[{'version': 'v1', 'created': 'Mon, 14 Jan 2019 09:40:38 GMT'}
{'version': 'v2', 'created': 'Fri, 5 Jul 2019 08:22:11 GMT'}
{'version': 'v3', 'created': 'Tue, 17 Sep 2019 14:08:22 GMT'}]
|
2019-09-19
|
[array(['Meerson', 'Baruch', ''], dtype=object)
array(['Smith', 'Naftali R.', ''], dtype=object)]
|
17,027 |
2208.04685
|
Vinay Chaudhri
|
Vinay K Chaudhri
|
Computable Contracts in the Financial Services Industry
| null | null | null | null |
cs.CY cs.PL q-fin.GN
|
http://creativecommons.org/licenses/by/4.0/
|
A computable contract is a contract that a computer can read, understand and
execute. The financial services industry makes extensive use of contracts, for
example, mortgage agreements, derivatives contracts, arbitration agreements,
etc. Most of these contracts exist as text documents, making it difficult to
automatically query, execute and analyze them. In this vision paper, we argue
that the use of computable contracts in the financial services industry will
lead to substantial improvements in customer experience, reductions in the cost
of doing legal transactions, make it easier to respond to changing laws, and
provide a much better framework for making decisions impacted by contracts.
Using a simple payment agreement, we illustrate a Contract Definition Language,
sketch several use cases and discuss their benefits to the financial services
industry.
|
[{'version': 'v1', 'created': 'Sun, 3 Jul 2022 00:06:39 GMT'}]
|
2022-08-10
|
[array(['Chaudhri', 'Vinay K', ''], dtype=object)]
|
17,028 |
cs/0207063
|
Alper Ungor
|
Dan A. Spielman, Shang-hua Teng, and Alper Ungor
|
Parallel Delaunay Refinement: Algorithms and Analyses
|
12 pages (short version); 2 figures; see also
http://www.cs.duke.edu/~ungor/abstracts/parallelDelRef.html
| null | null | null |
cs.CG
| null |
In this paper, we analyze the complexity of natural parallelizations of
Delaunay refinement methods for mesh generation. The parallelizations employ a
simple strategy: at each iteration, they choose a set of ``independent'' points
to insert into the domain, and then update the Delaunay triangulation. We show
that such a set of independent points can be constructed efficiently in
parallel and that the number of iterations needed is $O(\log^2(L/s))$, where
$L$ is the diameter of the domain, and $s$ is the smallest edge in the output
mesh. In addition, we show that the insertion of each independent set of points
can be realized sequentially by Ruppert's method in two dimensions and
Shewchuk's in three dimensions. Therefore, our parallel Delaunay refinement
methods provide the same element quality and mesh size guarantees as the
sequential algorithms in both two and three dimensions. For quasi-uniform
meshes, such as those produced by Chew's method, we show that the number of
iterations can be reduced to $O(\log(L/s))$. To the best of our knowledge,
these are the first provably polylog$(L/s)$ parallel time Delaunay meshing
algorithms that generate well-shaped meshes of size optimal to within a
constant.
|
[{'version': 'v1', 'created': 'Mon, 15 Jul 2002 20:20:34 GMT'}]
|
2007-05-23
|
[array(['Spielman', 'Dan A.', ''], dtype=object)
array(['Teng', 'Shang-hua', ''], dtype=object)
array(['Ungor', 'Alper', ''], dtype=object)]
|
17,029 |
1603.07496
|
V.Kuppusamy Chandrasekar
|
Ajey K. Tiwari, S. N. Pandey, V. K. Chandrasekar, M. Senthilvelan and
M. Lakshmanan
|
The inverse problem of a mixed Li\'enard type nonlinear oscillator
equation from symmetry perspective
|
Accepted for Publication in Acta Mechanica
| null | null | null |
nlin.SI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we discuss the inverse problem for a mixed Li\'enard type
nonlinear oscillator equation $\ddot{x}+f(x)\dot{x}^2+g(x)\dot{x}+h(x)=0$,
where $f(x),\,g(x)$ and $h(x)$ are arbitrary functions of $x$. Very recently,
we have reported the Lie point symmetries of this equation. By exploiting the
interconnection between Jacobi last multiplier, Lie point symmetries and
Prelle-Singer procedure we construct a time independent integral for the case
exhibiting maximal symmetry from which we identify the associated conservative
non-standard Lagrangian and Hamiltonian functions. The classical dynamics of
the nonlinear oscillator is also discussed and certain special properties
including isochronous oscillations are brought out.
|
[{'version': 'v1', 'created': 'Thu, 24 Mar 2016 09:32:49 GMT'}]
|
2016-03-25
|
[array(['Tiwari', 'Ajey K.', ''], dtype=object)
array(['Pandey', 'S. N.', ''], dtype=object)
array(['Chandrasekar', 'V. K.', ''], dtype=object)
array(['Senthilvelan', 'M.', ''], dtype=object)
array(['Lakshmanan', 'M.', ''], dtype=object)]
|
17,030 |
cond-mat/0010329
|
Leo Radzihovsky
|
Jordan Kyriakidis (NRC Ottawa) and Leo Radzihovsky (CU Boulder)
|
Persistent Currents and Dissipation in Narrow Bilayer Quantum Hall Bars
|
4 pgs. REVTeX, 3 eps figures
|
Phys. Rev. B 64, 201314 (2001)
|
10.1103/PhysRevB.64.201314
| null |
cond-mat.mes-hall cond-mat.str-el
| null |
Bilayer quantum Hall states support a flow of nearly dissipationless
staggered current which can only decay through collective channels. We study
the dominant finite-temperature dissipation mechanism which in narrow bars is
driven by thermal nucleation of pseudospin solitons. We find the
finite-temperature resistivity, predict the resulting staggered current-voltage
characteristics, and calculate the associated zero-temperature critical
staggered current and gate voltage.
|
[{'version': 'v1', 'created': 'Fri, 20 Oct 2000 22:54:44 GMT'}
{'version': 'v2', 'created': 'Fri, 16 Nov 2001 20:47:09 GMT'}]
|
2009-10-31
|
[array(['Kyriakidis', 'Jordan', '', 'NRC Ottawa'], dtype=object)
array(['Radzihovsky', 'Leo', '', 'CU Boulder'], dtype=object)]
|
17,031 |
1009.5563
|
Micha{\l} Jaroszy\'nski
|
M. Jaroszynski, J. Skowron, A. Udalski, M. Kubiak, M.K. Szymanski, G.
Pietrzynski, I. Soszynski, L. Wyrzykowski, K. Ulaczyk, and R. Poleski
|
Binary Lenses in OGLE-III EWS Database. Seasons 2006--2008
|
32 pages, accepted by Acta Astronomica
|
(2010) Acta Astronomica 60, 197
| null | null |
astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present 27 binary lens candidates from OGLE-III Early Warning System
database for the seasons 2006--2008. The candidates have been selected by
visual light curves inspection. Our sample of binary lens events consists now
of 78 stellar systems and 7 extrasolar planets of OGLE-III published elsewhere.
Examining the distribution of stellar binaries we find that the number of
systems per logarithmic mass ratio interval increases with mass ratio q, in
contradiction with our previous findings. Stellar binaries belong to the region
0.03<q<1 and there is a gap between them and a separate population of planets.
|
[{'version': 'v1', 'created': 'Tue, 28 Sep 2010 13:31:22 GMT'}]
|
2010-10-08
|
[array(['Jaroszynski', 'M.', ''], dtype=object)
array(['Skowron', 'J.', ''], dtype=object)
array(['Udalski', 'A.', ''], dtype=object)
array(['Kubiak', 'M.', ''], dtype=object)
array(['Szymanski', 'M. K.', ''], dtype=object)
array(['Pietrzynski', 'G.', ''], dtype=object)
array(['Soszynski', 'I.', ''], dtype=object)
array(['Wyrzykowski', 'L.', ''], dtype=object)
array(['Ulaczyk', 'K.', ''], dtype=object)
array(['Poleski', 'R.', ''], dtype=object)]
|
17,032 |
2106.13371
|
Surya Effendy
|
Surya Effendy, Tingtao Zhou, Henry Eichman, Michael Petr, and Martin
Z. Bazant
|
Blistering Failure of Elastic Coatings with Applications to Corrosion
Resistance
|
29 pages, 11 figures, submitted to Electrochimica Acta (under review)
| null | null | null |
cond-mat.soft physics.app-ph
|
http://creativecommons.org/licenses/by-sa/4.0/
|
A variety of polymeric surfaces, such as anti-corrosion coatings and
polymer-modified asphalts, are prone to blistering when exposed to moisture and
air. As water and oxygen diffuse through the material, dissolved species are
produced, which generate osmotic pressure that deforms and debonds the
coating.These mechanisms are experimentally well-supported; however,
comprehensive macroscopic models capable of predicting the formation osmotic
blisters, without extensive data-fitting, is scant. Here, we develop a general
mathematical theory of blistering and apply it to the failure of anti-corrosion
coatings on carbon steel. The model is able to predict the irreversible,
nonlinear blister growth dynamics, which eventually reaches a stable state,
ruptures, or undergoes runaway delamination, depending on the mechanical and
adhesion properties of the coating. For runaway delamination, the theory
predicts a critical delamination length, beyond which unstable corrosion-driven
growth occurs. The model is able to fit multiple sets of blister growth data
with no fitting parameters. Corrosion experiments are also performed to observe
undercoat rusting on carbon steel, which yielded trends comparable with model
predictions. The theory is used to define three dimensionless numbers which can
be used for engineering design of elastic coatings capable of resisting visible
deformation, rupture, and delamination.
|
[{'version': 'v1', 'created': 'Fri, 25 Jun 2021 00:55:48 GMT'}]
|
2021-06-28
|
[array(['Effendy', 'Surya', ''], dtype=object)
array(['Zhou', 'Tingtao', ''], dtype=object)
array(['Eichman', 'Henry', ''], dtype=object)
array(['Petr', 'Michael', ''], dtype=object)
array(['Bazant', 'Martin Z.', ''], dtype=object)]
|
17,033 |
1607.00142
|
Timur Sahin
|
Timur Sahin, David L. Lambert, Valentina G. Klochkova, Vladimir E.
Panchuk
|
HD 179821 (V1427 Aql, IRAS 19114+0002) -- A Massive Post-Red Supergiant
Star?
|
19 pages, 8 figures, accepted for publication in MNRAS
| null |
10.1093/mnras/stw1586
| null |
astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We have derived elemental abundances of a remarkable star, HD 179821, with
unusual composition (e.g. [Na/Fe]=1.0$\pm$0.2 dex) and extra-ordinary spectral
characteristics. Its metallicity at [Fe/H]=0.4 dex places it among the most
metal-rich stars yet analyzed. The abundance analysis of this luminous star is
based on high resolution and high quality (S/N$\approx$120--420) optical
echelle spectra from McDonald Observatory and Special Astronomy Observatory.
The data includes five years of observations over twenty-one epochs. Standard
1D {\sc LTE} analysis provides a fresh determination of the atmospheric
parameters over all epochs: \Teff = 7350$\pm$200 \kelvin, \logg = +0.6$\pm$0.3,
and a microturbulent velocity $\xi =$ 6.6$\pm$1.6 km s$^{\rm -1}$ and [Fe/H] =
0.4$\pm$0.2, and a carbon abundance [C/Fe]= $-$0.19$\pm$0.30. We find oxygen
abundance [O/Fe]= $-$0.25$\pm$0.28 and an enhancement of 0.9 dex in N. A
supersonic macroturbulent velocity of 22.0 $\pm$ 2.0 km s$^{\rm -1}$ is
determined from both strong and weak Fe\,{\sc i} and Fe\,{\sc ii} lines.
Elemental abundances are obtained for 22 elements. HD 179821 is not enriched in
s-process products. Eu is overabundant relative to the anticipated [X/Fe]
$\approx$ 0.0. Some peculiarities of its optical spectrum (e.g. variability in
the spectral line shapes) is noticed. This includes the line profile variations
for H$\alpha$ line. Based on its estimated luminosity, effective temperature
and surface gravity, HD 179821 is a massive star evolving to become a red
supergiant and finally a Type II supernova.
|
[{'version': 'v1', 'created': 'Fri, 1 Jul 2016 07:55:51 GMT'}]
|
2016-09-07
|
[array(['Sahin', 'Timur', ''], dtype=object)
array(['Lambert', 'David L.', ''], dtype=object)
array(['Klochkova', 'Valentina G.', ''], dtype=object)
array(['Panchuk', 'Vladimir E.', ''], dtype=object)]
|
17,034 |
1711.08239
|
Sajad Daei Omshi
|
Iman Valiulahi, Sajad Daei, Farzan Haddadi and Farzad Parvaresh
|
Two-Dimensional Super-Resolution via Convex Relaxation
| null |
IEEE Transactions on Signal Processing, 2019
|
10.1109/TSP.2019.2916744
| null |
cs.IT math.IT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we address the problem of recovering point sources from two
dimensional low-pass measurements, which is known as super-resolution problem.
This is the fundamental concern of many applications such as electronic
imaging, optics, microscopy, and line spectral estimation. We assume that the
point sources are located in the square $[0,1]^2$ with unknown locations and
complex amplitudes. The only available information is low-pass Fourier
measurements band-limited to integer square $[-f_c,f_c]^2$. The signal is
estimated by minimizing Total Variation $(\mathrm{TV})$ norm, which leads to a
convex optimization problem. It is shown that if the sources are separated by
at least $1.68/f_c$, there exist a dual certificate that is sufficient for
exact recovery.
|
[{'version': 'v1', 'created': 'Wed, 22 Nov 2017 11:41:52 GMT'}]
|
2019-05-17
|
[array(['Valiulahi', 'Iman', ''], dtype=object)
array(['Daei', 'Sajad', ''], dtype=object)
array(['Haddadi', 'Farzan', ''], dtype=object)
array(['Parvaresh', 'Farzad', ''], dtype=object)]
|
17,035 |
2106.06044
|
Ruitu Xu
|
Ganlin Song, Ruitu Xu, John Lafferty
|
Convergence and Alignment of Gradient Descent with Random
Backpropagation Weights
|
35 pages
| null | null | null |
stat.ML cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Stochastic gradient descent with backpropagation is the workhorse of
artificial neural networks. It has long been recognized that backpropagation
fails to be a biologically plausible algorithm. Fundamentally, it is a
non-local procedure -- updating one neuron's synaptic weights requires
knowledge of synaptic weights or receptive fields of downstream neurons. This
limits the use of artificial neural networks as a tool for understanding the
biological principles of information processing in the brain. Lillicrap et al.
(2016) propose a more biologically plausible "feedback alignment" algorithm
that uses random and fixed backpropagation weights, and show promising
simulations. In this paper we study the mathematical properties of the feedback
alignment procedure by analyzing convergence and alignment for two-layer
networks under squared error loss. In the overparameterized setting, we prove
that the error converges to zero exponentially fast, and also that
regularization is necessary in order for the parameters to become aligned with
the random backpropagation weights. Simulations are given that are consistent
with this analysis and suggest further generalizations. These results
contribute to our understanding of how biologically plausible algorithms might
carry out weight learning in a manner different from Hebbian learning, with
performance that is comparable with the full non-local backpropagation
algorithm.
|
[{'version': 'v1', 'created': 'Thu, 10 Jun 2021 20:58:05 GMT'}
{'version': 'v2', 'created': 'Mon, 14 Jun 2021 19:31:48 GMT'}
{'version': 'v3', 'created': 'Thu, 23 Dec 2021 02:12:11 GMT'}]
|
2021-12-24
|
[array(['Song', 'Ganlin', ''], dtype=object)
array(['Xu', 'Ruitu', ''], dtype=object)
array(['Lafferty', 'John', ''], dtype=object)]
|
17,036 |
cond-mat/9806168
|
Dietrich Belitz
|
D. Belitz, T.R. Kirkpatrick, A. Millis, and Thomas Vojta
|
Nonanalytic Magnetization Dependence of the Magnon Effective Mass in
Itinerant Quantum Ferromagnets
|
4 pp., REVTeX, no figs
|
Phys. Rev. B vol. 58, pp. 14155-14158 (1998)
|
10.1103/PhysRevB.58.14155
|
db/98/2
|
cond-mat.str-el cond-mat.stat-mech
| null |
The spin wave dispersion relation in both clean and disordered itinerant
quantum ferromagnets is calculated. It is found that effects akin to
weak-localization physics cause the frequency of the spin-waves to be a
nonanalytic function of the magnetization m. For low frequencies \Omega, small
wavevectors k, and small m, the dispersion relation is found to be of the form
\Omega ~ m^{1-\alpha} k^2, with \alpha = (4-d)/2 (2<d<4) for disordered
systems, and \alpha = (3-d) (1<d<3) for clean ones. In d=4 (disordered) and d=3
(clean), \Omega ~ m ln(1/m) k^2. Experiments to test these predictions are
proposed.
|
[{'version': 'v1', 'created': 'Sat, 13 Jun 1998 16:48:51 GMT'}
{'version': 'v2', 'created': 'Tue, 31 Aug 1999 01:46:50 GMT'}
{'version': 'v3', 'created': 'Wed, 22 Dec 1999 22:30:18 GMT'}]
|
2009-10-31
|
[array(['Belitz', 'D.', ''], dtype=object)
array(['Kirkpatrick', 'T. R.', ''], dtype=object)
array(['Millis', 'A.', ''], dtype=object)
array(['Vojta', 'Thomas', ''], dtype=object)]
|
17,037 |
1802.02858
|
Marc Arcostanzo
|
Marc Arcostanzo
|
Non-resonant tori in symplectic twist maps without conjugate points
| null | null | null | null |
math.DS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the dynamics of a symplectic twist map without conjugate points. We
show that in a neighborhood of a totally periodic Lagrangian manifold, there
exists a large family of invariant Lagrangian tori on which the twist map is
conjugated to a translation of non-resonant vector.
|
[{'version': 'v1', 'created': 'Thu, 8 Feb 2018 14:00:31 GMT'}]
|
2018-02-09
|
[array(['Arcostanzo', 'Marc', ''], dtype=object)]
|
17,038 |
math/0612048
|
Vlada Limic
|
Codina Cotar, Vlada Limic
|
Attraction time for strongly reinforced walks
|
Published in at http://dx.doi.org/10.1214/08-AAP564 the Annals of
Applied Probability (http://www.imstat.org/aap/) by the Institute of
Mathematical Statistics (http://www.imstat.org)
|
Annals of Applied Probability 2009, Vol. 19, No. 5, 1972-2007
|
10.1214/08-AAP564
|
IMS-AAP-AAP564
|
math.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider a class of strongly edge-reinforced random walks, where the
corresponding reinforcement weight function is nondecreasing. It is known, from
Limic and Tarr\`{e}s [Ann. Probab. (2007), to appear], that the attracting edge
emerges with probability 1 whenever the underlying graph is locally bounded. We
study the asymptotic behavior of the tail distribution of the (random) time of
attraction. In particular, we obtain exact (up to a multiplicative constant)
asymptotics if the underlying graph has two edges. Next, we show some
extensions in the setting of finite graphs, and infinite graphs with bounded
degree. As a corollary, we obtain the fact that if the reinforcement weight has
the form $w(k)=k^{\rho}$, $\rho>1$, then (universally over finite graphs) the
expected time to attraction is infinite if and only if
$\rho\leq1+\frac{1+\sqrt{5}}{2}$.
|
[{'version': 'v1', 'created': 'Sat, 2 Dec 2006 11:47:54 GMT'}
{'version': 'v2', 'created': 'Wed, 24 Sep 2008 16:39:14 GMT'}
{'version': 'v3', 'created': 'Tue, 17 Nov 2009 13:23:47 GMT'}]
|
2016-09-07
|
[array(['Cotar', 'Codina', ''], dtype=object)
array(['Limic', 'Vlada', ''], dtype=object)]
|
17,039 |
astro-ph/0202080
|
Cristian Vignali
|
A. Comastri, M. Mignoli, P. Ciliegi (Oss. Astronomico-Bologna), P.
Severgnini (Dip. di Astronomia e Scienze dello Spazio-Firenze), R. Maiolino
(Oss. Astrofisico di Arcetri-Firenze), M. Brusa (Dip. di Astronomia-Bologna),
F. Fiore (Oss. Astronomico-Roma), A. Baldi, S. Molendi (Istituto di Fisica
Cosmica/CNR - Milano), R. Morganti (Netherlands Foundation for Research in
Astronomy-Dwingeloo), C. Vignali (Penn State Univ.-USA), F. La Franca, G.
Matt, G.C. Perola (Dip. di Fisica-Univ. di Roma Tre)
|
The HELLAS2XMM survey: II. Multiwavelength observations of P3: an X-ray
bright, optically inactive galaxy
|
7 pages, 5 figures included, LaTeX emulateapj5.sty, accepted for
publication by The Astrophysical Journal
|
Astrophys.J.571:771-778,2002
|
10.1086/340016
| null |
astro-ph
| null |
Recent X-ray surveys have clearly demonstrated that a population of optically
dull, X-ray bright galaxies is emerging at 2-10 keV fluxes of the order of
10^{-14} erg cm^{-2} s^{-1}. Although they might constitute an important
fraction of the sources responsible for the hard X-ray background, their nature
is still unknown. With the aim to better understand the physical mechanisms
responsible for the observed properties, we have started an extensive program
of multiwavelength follow-up observations of hard X-ray, optically quiet
galaxies discovered with XMM-Newton. Here we report the results of what can be
considered the first example of this class of objects: CXOUJ031238.9-765134,
originally discovered by Chandra, and optically identified by Fiore et al.
(2000) with an apparently normal early-type galaxy at z=0.159, usually known as
"FIORE P3". The analysis of the broad-band energy distribution suggests the
presence of a heavily obscured active nucleus.
|
[{'version': 'v1', 'created': 'Mon, 4 Feb 2002 21:00:05 GMT'}]
|
2009-06-16
|
[array(['Comastri', 'A.', '', 'Oss. Astronomico-Bologna'], dtype=object)
array(['Mignoli', 'M.', '', 'Oss. Astronomico-Bologna'], dtype=object)
array(['Ciliegi', 'P.', '', 'Oss. Astronomico-Bologna'], dtype=object)
array(['Severgnini', 'P.', '',
'Dip. di Astronomia e Scienze dello Spazio-Firenze'], dtype=object)
array(['Maiolino', 'R.', '', 'Oss. Astrofisico di Arcetri-Firenze'],
dtype=object)
array(['Brusa', 'M.', '', 'Dip. di Astronomia-Bologna'], dtype=object)
array(['Fiore', 'F.', '', 'Oss. Astronomico-Roma'], dtype=object)
array(['Baldi', 'A.', '', 'Istituto di Fisica\n Cosmica/CNR - Milano'],
dtype=object)
array(['Molendi', 'S.', '', 'Istituto di Fisica\n Cosmica/CNR - Milano'],
dtype=object)
array(['Morganti', 'R.', '',
'Netherlands Foundation for Research in\n Astronomy-Dwingeloo'],
dtype=object)
array(['Vignali', 'C.', '', 'Penn State Univ.-USA'], dtype=object)
array(['La Franca', 'F.', '', 'Dip. di Fisica-Univ. di Roma Tre'],
dtype=object)
array(['Matt', 'G.', '', 'Dip. di Fisica-Univ. di Roma Tre'], dtype=object)
array(['Perola', 'G. C.', '', 'Dip. di Fisica-Univ. di Roma Tre'],
dtype=object) ]
|
17,040 |
0806.0376
|
Tesla E. Jeltema
|
T.E. Jeltema, J.S. Mulchaey, and L.M. Lubin
|
RXJ1648.7+6109: Witnessing the Formation of a Massive Group/Poor Cluster
and its Brightest Galaxy
|
23 pages, 6 figures, accepted for publication in ApJ
|
Astrophys.J.685:138-146,2008
|
10.1086/590550
| null |
astro-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Using deep Chandra and optical spectroscopic observations, we investigate an
intriguing, young massive group, RXJ1648.7+6109, at z=0.376, and we combine
these observations with previous measurements to fit the scaling relations of
intermediate-redshift groups and poor clusters. RXJ1648 appears to be in an
early stage of formation; while it follows X-ray scaling relations, its X-ray
emission is highly elongated and it lacks a central, dominant BCG. Instead,
RXJ1648 contains a central string of seven bright galaxies, which have a
smaller velocity dispersion, are on average brighter, and have less star
formation (lower EW([OII]) and EW(H_delta)) than other group galaxies. The 4-5
brightest galaxies in this string should sink to the center and merge through
dynamical friction by z=0, forming a BCG consistent with a system of RXJ1648's
mass even if 5-50% of the light is lost to an intracluster light component
(ICL). The L_X-T_X relation for intermediate-redshift groups/poor clusters is
very similar to the low-redshift cluster relation and consistent with the
low-redshift group relation. In contrast, the L_X-sigma_v and sigma_v-T_X
relations reveal that intermediate-redshift groups/poor clusters have
significantly lower velocity dispersions for their X-ray properties compared to
low-redshift systems, however the intermediate-redshift relations are currently
limited to a small range in luminosity.
|
[{'version': 'v1', 'created': 'Mon, 2 Jun 2008 20:00:36 GMT'}]
|
2010-11-11
|
[array(['Jeltema', 'T. E.', ''], dtype=object)
array(['Mulchaey', 'J. S.', ''], dtype=object)
array(['Lubin', 'L. M.', ''], dtype=object)]
|
17,041 |
1701.06155
|
Giulia Di Nunno
|
David R. Ba\~nos, Giulia Di Nunno, Hannes Haferkorn, Frank Proske
|
Stochastic functional differential equations and sensitivity to their
initial path
| null | null | null | null |
math.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider systems with memory represented by stochastic functional
differential equations. Substantially, these are stochastic differential
equations with coefficients depending on the past history of the process
itself. Such coefficients are hence defined on a functional space. Models with
memory appear in many applications ranging from biology to finance. Here we
consider the results of some evaluations based on these models (e.g. the prices
of some financial products) and the risks connected to the choice of these
models. In particular we focus on the impact of the initial condition on the
evaluations. This problem is known as the analysis of sensitivity to the
initial condition and, in the terminology of finance, it is referred to as the
Delta. In this work the initial condition is represented by the relevant past
history of the stochastic functional differential equation. This naturally
leads to the redesign of the definition of Delta. We suggest to define it as a
functional directional derivative, this is a natural choice. For this we study
a representation formula which allows for its computation without requiring
that the evaluation functional is differentiable. This feature is particularly
relevant for applications. Our formula is achieved by studying an appropriate
relationship between Malliavin derivative and functional directional
derivative. For this we introduce the technique of {\it randomisation of the
initial condition}.
|
[{'version': 'v1', 'created': 'Sun, 22 Jan 2017 11:19:15 GMT'}]
|
2017-01-24
|
[array(['Baños', 'David R.', ''], dtype=object)
array(['Di Nunno', 'Giulia', ''], dtype=object)
array(['Haferkorn', 'Hannes', ''], dtype=object)
array(['Proske', 'Frank', ''], dtype=object)]
|
17,042 |
1004.3091
|
Charusita Chakravarty
|
Manish Agarwal, Murari Singh, Ruchi Sharma and Mohammad Parvez Alam
and Charusita Chakravarty
|
Relationship between Structure, Entropy and Diffusivity in Water and
Water-like Liquids
|
24 pages, 4 figures, to be published in Journal of Physical Chemistry
B
| null |
10.1021/jp101956u
| null |
cond-mat.soft cond-mat.mtrl-sci cond-mat.stat-mech
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Anomalous behaviour of the excess entropy ($S_e$) and the associated scaling
relationship with diffusivity are compared in liquids with very different
underlying interactions but similar water-like anomalies: water (SPC/E and
TIP3P models), tetrahedral ionic melts (SiO$_2$ and BeF$_2$) and a fluid with
core-softened, two-scale ramp (2SRP) interactions. We demonstrate the presence
of an excess entropy anomaly in the two water models. Using length and energy
scales appropriate for onset of anomalous behaviour, the density range of the
excess entropy anomaly is shown to be much narrower in water than in ionic
melts or the 2SRP fluid. While the reduced diffusivities ($D^*$) conform to the
excess entropy scaling relation, $D^* =A\exp (\alpha S_e)$ for all the systems
(Y. Rosenfeld, Phys. Rev. A {\bf 1977}, {\it 15}, 2545), the exponential
scaling parameter, $\alpha$, shows a small isochore-dependence in the case of
water. Replacing $S_e$ by pair correlation-based approximants accentuates the
isochore-dependence of the diffusivity scaling. Isochores with similar
diffusivity scaling parameters are shown to have the temperature dependence of
the corresponding entropic contribution. The relationship between diffusivity,
excess entropy and pair correlation approximants to the excess entropy are very
similar in all the tetrahedral liquids.
|
[{'version': 'v1', 'created': 'Mon, 19 Apr 2010 04:31:19 GMT'}]
|
2010-05-04
|
[array(['Agarwal', 'Manish', ''], dtype=object)
array(['Singh', 'Murari', ''], dtype=object)
array(['Sharma', 'Ruchi', ''], dtype=object)
array(['Alam', 'Mohammad Parvez', ''], dtype=object)
array(['Chakravarty', 'Charusita', ''], dtype=object)]
|
17,043 |
1712.00131
|
Marcel Ausloos
|
Jing Shi, Marcel Ausloos, Tingting Zhu
|
Benford's law first significant digit and distribution distances for
testing the reliability of financial reports in developing countries
|
22 pages, 34 references, 4 figures, 7 tables; to be published in
Physica A
| null |
10.1016/j.physa.2017.11.017
| null |
q-fin.ST cond-mat.stat-mech stat.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We discuss a common suspicion about reported financial data, in 10 industrial
sectors of the 6 so called "main developing countries" over the time interval
[2000-2014]. These data are examined through Benford's law first significant
digit and through distribution distances tests. It is shown that several
visually anomalous data have to be a priori removed. Thereafter, the
distributions much better follow the first digit significant law, indicating
the usefulness of a Benford's law test from the research starting line. The
same holds true for distance tests. A few outliers are pointed out.
|
[{'version': 'v1', 'created': 'Thu, 30 Nov 2017 23:59:17 GMT'}]
|
2017-12-04
|
[array(['Shi', 'Jing', ''], dtype=object)
array(['Ausloos', 'Marcel', ''], dtype=object)
array(['Zhu', 'Tingting', ''], dtype=object)]
|
17,044 |
astro-ph/9601176
|
Alberto Fernandez Soto
|
A. Fernandez-Soto (1 and 2), K.M. Lanzetta (3), X. Barcons (1), R.F.
Carswell (4), J.K. Webb (5), A. Yahil (3) ((1) IFCA (CSIC-UC)-Santander-
SPAIN, (2) Dpt. Fisica Moderna (UC)-Santander-SPAIN, (3) SUNY at Stony Brook,
NY-USA, (4) IoA, Cambridge-UK, (5) UNSW-Sydney-AUSTRALIA)
|
Strong Clustering of High-Redshift Lyman-alpha Forest Absorption Systems
|
12 pages, includes 4 figures, uses AASTEX style file aaspp4.tex.
Accepted for publication in ApJLetters
| null |
10.1086/309983
|
IFCA-96-1
|
astro-ph
| null |
We use new observations of very weak CIV absorption lines associated with
high-redshift Lyman-alpha absorption systems to measure the high-redshift
Lyman-alpha line two-point correlation function (TPCF). These very weak CIV
absorption lines trace small-scale velocity structure that cannot be resolved
by Lyman-alpha absorption lines. We find that (1) high-redshift Lyman-alpha
absorption systems with N(HI) > 3.10^14 cm^{-2} are strongly clustered in
redshift, (2) previous measurements of the Lyman-alpha line TPCF underestimated
the actual clustering of the absorbers due to unresolved blending of
overlapping velocity components, (3) the present observations are consistent
with the hypothesis that clustering of Lyman-alpha absorption systems extends
to lower column densities, but maybe with smaller amplitude in the correlation
function, and (4) the observed clustering is broadly compatible with that
expected for galaxies at z \sim 2-3. We interpret these results as suggesting
that many or most Lyman-alpha absorbers may arise in galaxies even at high
redshifts, and, therefore, that the Lyman-alpha forest probes processes of
galaxy formation and evolution for redshifts \lesssim 5.
|
[{'version': 'v1', 'created': 'Tue, 30 Jan 1996 16:44:01 GMT'}]
|
2009-10-28
|
[array(['Fernandez-Soto', 'A.', '', '1 and 2'], dtype=object)
array(['Lanzetta', 'K. M.', ''], dtype=object)
array(['Barcons', 'X.', ''], dtype=object)
array(['Carswell', 'R. F.', ''], dtype=object)
array(['Webb', 'J. K.', ''], dtype=object)
array(['Yahil', 'A.', ''], dtype=object)]
|
17,045 |
2006.12797
|
Zhelun Shen
|
Zhelun Shen, Yuchao Dai, Xibin Song, Zhibo Rao, Dingfu Zhou, and
Liangjun Zhang
|
PCW-Net: Pyramid Combination and Warping Cost Volume for Stereo Matching
|
accepted by ECCV2022 oral
|
[C]//European Conference on Computer Vision. Springer, Cham, 2022:
280-297
| null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Existing deep learning based stereo matching methods either focus on
achieving optimal performances on the target dataset while with poor
generalization for other datasets or focus on handling the cross-domain
generalization by suppressing the domain sensitive features which results in a
significant sacrifice on the performance. To tackle these problems, we propose
PCW-Net, a Pyramid Combination and Warping cost volume-based network to achieve
good performance on both cross-domain generalization and stereo matching
accuracy on various benchmarks. In particular, our PCW-Net is designed for two
purposes. First, we construct combination volumes on the upper levels of the
pyramid and develop a cost volume fusion module to integrate them for initial
disparity estimation. Multi-scale receptive fields can be covered by fusing
multi-scale combination volumes, thus, domain-invariant features can be
extracted. Second, we construct the warping volume at the last level of the
pyramid for disparity refinement. The proposed warping volume can narrow down
the residue searching range from the initial disparity searching range to a
fine-grained one, which can dramatically alleviate the difficulty of the
network to find the correct residue in an unconstrained residue searching
space. When training on synthetic datasets and generalizing to unseen real
datasets, our method shows strong cross-domain generalization and outperforms
existing state-of-the-arts with a large margin. After fine-tuning on the real
datasets, our method ranks first on KITTI 2012, second on KITTI 2015, and first
on the Argoverse among all published methods as of 7, March 2022. The code will
be available at https://github.com/gallenszl/PCWNet.
|
[{'version': 'v1', 'created': 'Tue, 23 Jun 2020 07:12:00 GMT'}
{'version': 'v2', 'created': 'Fri, 25 Sep 2020 11:21:08 GMT'}
{'version': 'v3', 'created': 'Fri, 30 Dec 2022 08:35:08 GMT'}]
|
2023-01-02
|
[array(['Shen', 'Zhelun', ''], dtype=object)
array(['Dai', 'Yuchao', ''], dtype=object)
array(['Song', 'Xibin', ''], dtype=object)
array(['Rao', 'Zhibo', ''], dtype=object)
array(['Zhou', 'Dingfu', ''], dtype=object)
array(['Zhang', 'Liangjun', ''], dtype=object)]
|
17,046 |
2302.06019
|
Rajat Talak
|
Jingnan Shi and Rajat Talak and Dominic Maggio and Luca Carlone
|
A Correct-and-Certify Approach to Self-Supervise Object Pose Estimators
via Ensemble Self-Training
| null | null | null | null |
cs.CV cs.LG cs.RO
|
http://creativecommons.org/licenses/by/4.0/
|
Real-world robotics applications demand object pose estimation methods that
work reliably across a variety of scenarios. Modern learning-based approaches
require large labeled datasets and tend to perform poorly outside the training
domain. Our first contribution is to develop a robust corrector module that
corrects pose estimates using depth information, thus enabling existing methods
to better generalize to new test domains; the corrector operates on semantic
keypoints (but is also applicable to other pose estimators) and is fully
differentiable. Our second contribution is an ensemble self-training approach
that simultaneously trains multiple pose estimators in a self-supervised
manner. Our ensemble self-training architecture uses the robust corrector to
refine the output of each pose estimator; then, it evaluates the quality of the
outputs using observable correctness certificates; finally, it uses the
observably correct outputs for further training, without requiring external
supervision. As an additional contribution, we propose small improvements to a
regression-based keypoint detection architecture, to enhance its robustness to
outliers; these improvements include a robust pooling scheme and a robust
centroid computation. Experiments on the YCBV and TLESS datasets show the
proposed ensemble self-training outperforms fully supervised baselines while
not requiring 3D annotations on real data.
|
[{'version': 'v1', 'created': 'Sun, 12 Feb 2023 23:02:03 GMT'}
{'version': 'v2', 'created': 'Thu, 11 May 2023 18:46:39 GMT'}]
|
2023-05-15
|
[array(['Shi', 'Jingnan', ''], dtype=object)
array(['Talak', 'Rajat', ''], dtype=object)
array(['Maggio', 'Dominic', ''], dtype=object)
array(['Carlone', 'Luca', ''], dtype=object)]
|
17,047 |
cond-mat/0010341
|
Sindhunil B. Roy
|
Meghmalhar Manekar, Sujeet Chaudhary, M. K. Chattopadhyay, Kanwal Jeet
Singh, S. B. Roy and P. Chaddah
|
First order metamagnetic transition in CeFe$_2$ based pseudobinary
alloys
|
11 pages of text and 9 figures ; to appear in Journal of Physics:
Condens. Matter
| null |
10.1088/0953-8984/12/46/312
| null |
cond-mat.mtrl-sci cond-mat.str-el
| null |
We present results of dc magnetisation study showing that the low temperature
antiferromagnetic state in various CeFe$_2$-based pseudobinary alloys can be
transformed into ferromagnetic state through a magnetic field induced phase
transition. We highlight the presence of hysteresis and phase coexistence
across this metamagnetic transition and argue that the observed phase
transition is of first order in nature.
|
[{'version': 'v1', 'created': 'Mon, 23 Oct 2000 09:52:14 GMT'}]
|
2009-10-31
|
[array(['Manekar', 'Meghmalhar', ''], dtype=object)
array(['Chaudhary', 'Sujeet', ''], dtype=object)
array(['Chattopadhyay', 'M. K.', ''], dtype=object)
array(['Singh', 'Kanwal Jeet', ''], dtype=object)
array(['Roy', 'S. B.', ''], dtype=object)
array(['Chaddah', 'P.', ''], dtype=object)]
|
17,048 |
1008.2108
|
EPTCS
|
Ignacio F\'abregas (Universidad Complutense de Madrid, Spain), David
de Frutos Escrig (Universidad Complutense de Madrid, Spain), Miguel Palomino
(Universidad Complutense de Madrid, Spain)
|
Equational Characterization of Covariant-Contravariant Simulation and
Conformance Simulation Semantics
|
In Proceedings SOS 2010, arXiv:1008.1906
|
EPTCS 32, 2010, pp. 1-14
|
10.4204/EPTCS.32.1
| null |
cs.LO cs.PL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Covariant-contravariant simulation and conformance simulation generalize
plain simulation and try to capture the fact that it is not always the case
that "the larger the number of behaviors, the better". We have previously
studied their logical characterizations and in this paper we present the
axiomatizations of the preorders defined by the new simulation relations and
their induced equivalences. The interest of our results lies in the fact that
the axiomatizations help us to know the new simulations better, understanding
in particular the role of the contravariant characteristics and their interplay
with the covariant ones; moreover, the axiomatizations provide us with a
powerful tool to (algebraically) prove results of the corresponding semantics.
But we also consider our results interesting from a metatheoretical point of
view: the fact that the covariant-contravariant simulation equivalence is
indeed ground axiomatizable when there is no action that exhibits both a
covariant and a contravariant behaviour, but becomes non-axiomatizable whenever
we have together actions of that kind and either covariant or contravariant
actions, offers us a new subtle example of the narrow border separating
axiomatizable and non-axiomatizable semantics. We expect that by studying these
examples we will be able to develop a general theory separating axiomatizable
and non-axiomatizable semantics.
|
[{'version': 'v1', 'created': 'Thu, 12 Aug 2010 13:42:22 GMT'}]
|
2010-08-13
|
[array(['Fábregas', 'Ignacio', '',
'Universidad Complutense de Madrid, Spain'], dtype=object)
array(['Escrig', 'David de Frutos', '',
'Universidad Complutense de Madrid, Spain'], dtype=object)
array(['Palomino', 'Miguel', '',
'Universidad Complutense de Madrid, Spain'], dtype=object)]
|
17,049 |
1811.12416
|
Laura Lopez
|
Laura A. Lopez, Brian W. Grefenstette, Katie Auchettl, Kristin K.
Madsen, Daniel Castro
|
Evidence of Particle Acceleration in the Superbubble 30 Doradus C with
NuSTAR
|
14 pages, 8 figures, ApJ, in press
| null |
10.3847/1538-4357/ab8232
| null |
astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present evidence of diffuse, non-thermal X-ray emission from the
superbubble 30 Doradus C (30 Dor C) using hard X-ray images and spectra from
NuSTAR observations. For this analysis, we utilize data from a 200 ks targeted
observation of 30 Dor C as well as 2.8 Ms of serendipitous off-axis
observations from the monitoring of nearby SN 1987A. The complete shell of 30
Dor C is detected up to 20 keV, and the young supernova remnant MCSNR
J0536-6913 in the southeast of 30 Dor C is not detected above 8 keV.
Additionally, six point sources identified in previous Chandra and XMM-Newton
investigations have hard X-ray emission coincident with their locations. Joint
spectral fits to the NuSTAR and XMM-Newton spectra across the 30 Dor C shell
confirm the non-thermal nature of the diffuse emission. Given the best-fit
rolloff frequencies of the X-ray spectra, we find maximum electron energies of
70-110 TeV (assuming a B-field strength of 4$\mu$G), suggesting 30 Dor C is
accelerating particles. Particles are either accelerated via diffusive shock
acceleration at locations where the shocks have not stalled behind the
H$\alpha$ shell, or cosmic-rays are accelerated through repeated acceleration
of low-energy particles via turbulence and magnetohydrodynamic waves in the
bubble's interior.
|
[{'version': 'v1', 'created': 'Thu, 29 Nov 2018 19:00:01 GMT'}
{'version': 'v2', 'created': 'Sat, 21 Mar 2020 18:45:52 GMT'}]
|
2020-05-27
|
[array(['Lopez', 'Laura A.', ''], dtype=object)
array(['Grefenstette', 'Brian W.', ''], dtype=object)
array(['Auchettl', 'Katie', ''], dtype=object)
array(['Madsen', 'Kristin K.', ''], dtype=object)
array(['Castro', 'Daniel', ''], dtype=object)]
|
17,050 |
0903.0643
|
Max Neumann-Coto
|
D. Labardini-Fragoso, M. Neumann-Coto and M. Takane
|
Cones and convex bodies with modular face lattices
|
12 pags, 1 figure
| null | null | null |
math.GT math.MG
|
http://creativecommons.org/licenses/publicdomain/
|
If a convex body C has modular and irreducible face lattice (and is not
strictly convex), there is a face-preserving homeomorphism from C to a section
of a cone of hermitian matrices or C has dimension 8, 14 or 26.
|
[{'version': 'v1', 'created': 'Wed, 4 Mar 2009 20:48:08 GMT'}]
|
2009-03-05
|
[array(['Labardini-Fragoso', 'D.', ''], dtype=object)
array(['Neumann-Coto', 'M.', ''], dtype=object)
array(['Takane', 'M.', ''], dtype=object)]
|
17,051 |
cond-mat/0305447
|
Roberto Merlin
|
R. Merlin
|
Imaging with an Almost Perfect Lens
| null | null | null | null |
cond-mat
| null |
The problem of imaging for a nearly-perfect lens, namely, a slab of a
left-handed material with refractive index n = -(1-sigma)^1/2 is solved
analytically for |sigma| << 1. The electromagnetic field behavior is determined
largely by singularities arising from the excitation of surface polaritons with
wavevector q -->oo. Depending on the sign of sigma, the near field is either
odd or even with respect to the lens middle plane. Images exhibit an anomalous
interference pattern with length scale determined by the width of the slab.
Consistent with recent studies by Smith et al. [Appl. Phys. Lett. 82, 1506
(2003)] and G'omez-Santos [Phys. Rev. Lett. 90, 077401 (2003)], the resolution
depends logarithmically on |sigma|.
|
[{'version': 'v1', 'created': 'Mon, 19 May 2003 17:33:44 GMT'}]
|
2007-05-23
|
[array(['Merlin', 'R.', ''], dtype=object)]
|
17,052 |
2304.00245
|
Binhang Qi
|
Binhang Qi, Hailong Sun, Xiang Gao, Hongyu Zhang, Zhaotian Li, Xudong
Liu
|
Reusing Deep Neural Network Models through Model Re-engineering
|
Accepted by ICSE'23
| null | null | null |
cs.SE cs.AI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Training deep neural network (DNN) models, which has become an important task
in today's software development, is often costly in terms of computational
resources and time. With the inspiration of software reuse, building DNN models
through reusing existing ones has gained increasing attention recently. Prior
approaches to DNN model reuse have two main limitations: 1) reusing the entire
model, while only a small part of the model's functionalities (labels) are
required, would cause much overhead (e.g., computational and time costs for
inference), and 2) model reuse would inherit the defects and weaknesses of the
reused model, and hence put the new system under threats of security attack. To
solve the above problem, we propose SeaM, a tool that re-engineers a trained
DNN model to improve its reusability. Specifically, given a target problem and
a trained model, SeaM utilizes a gradient-based search method to search for the
model's weights that are relevant to the target problem. The re-engineered
model that only retains the relevant weights is then reused to solve the target
problem. Evaluation results on widely-used models show that the re-engineered
models produced by SeaM only contain 10.11% weights of the original models,
resulting 42.41% reduction in terms of inference time. For the target problem,
the re-engineered models even outperform the original models in classification
accuracy by 5.85%. Moreover, reusing the re-engineered models inherits an
average of 57% fewer defects than reusing the entire model. We believe our
approach to reducing reuse overhead and defect inheritance is one important
step forward for practical model reuse.
|
[{'version': 'v1', 'created': 'Sat, 1 Apr 2023 06:49:07 GMT'}]
|
2023-04-04
|
[array(['Qi', 'Binhang', ''], dtype=object)
array(['Sun', 'Hailong', ''], dtype=object)
array(['Gao', 'Xiang', ''], dtype=object)
array(['Zhang', 'Hongyu', ''], dtype=object)
array(['Li', 'Zhaotian', ''], dtype=object)
array(['Liu', 'Xudong', ''], dtype=object)]
|
17,053 |
0810.2948
|
Charles Lane
|
Charles E. Lane
|
The Double Chooz Experiment
|
ICHEP08 parallel session paper, 4 pages, 2 figures
| null | null | null |
hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The Double Chooz experiment returns to the site of the Chooz experiment with
a pair of detectors for a differential neutrino flux measurement, providing
sensitivity to sin^2(2theta13) > 0.03. Reaching this goal requires significant
improvements in systematic uncertainties, based on the experience with previous
reactor neutrino experiments.
|
[{'version': 'v1', 'created': 'Thu, 16 Oct 2008 15:45:56 GMT'}]
|
2008-10-17
|
[array(['Lane', 'Charles E.', ''], dtype=object)]
|
17,054 |
0712.4236
|
Richard Melrose
|
Richard Melrose, Gunther Uhlmann
|
Generalized backscattering and the Lax-Phillips transform
|
Minor changes, typos corrected, references added
| null | null | null |
math.AP
| null |
Using the free-space translation representation (modified Radon transform) of
Lax and Phillips in odd dimensions, it is shown that the generalized
backscattering transform (so outgoing angle $\omega =S\theta$ in terms of the
incoming angle with $S$ orthogonal and $\Id-S$ invertible) may be further
restricted to give an entire, globally Fredholm, operator on appropriate
Sobolev spaces of potentials with compact support. As a corollary we show that
the modified backscattering map is a local isomorphism near elements of a
generic set of potentials.
|
[{'version': 'v1', 'created': 'Thu, 27 Dec 2007 13:53:17 GMT'}
{'version': 'v2', 'created': 'Thu, 3 Jan 2008 19:35:47 GMT'}]
|
2008-01-03
|
[array(['Melrose', 'Richard', ''], dtype=object)
array(['Uhlmann', 'Gunther', ''], dtype=object)]
|
17,055 |
hep-th/9603013
|
Jorge Eduardo Stephany Ruiz
|
J. P. Lupi, A. Restuccia, J. Stephany
|
Non Abelian BF theories with sources and 2-D gravity
|
20 pages, Latex, To appear in Phys Rev D54
|
Phys.Rev.D54:3861-3868,1996
|
10.1103/PhysRevD.54.3861
|
SB/F/95-233
|
hep-th
| null |
We study the interaction of non-Abelian topological $BF$ theories defined on
two dimensional manifolds with point sources carrying non-Abelian charges. We
identify the most general solution for the field equations on simply and
multiply connected two-manifolds. Taking the particular choice of the so-called
extended Poincar\'e group as the gauge group we discuss how recent discussions
of two dimensional gravity models do fit in this formalism.
|
[{'version': 'v1', 'created': 'Mon, 4 Mar 1996 19:10:10 GMT'}
{'version': 'v2', 'created': 'Wed, 21 Aug 1996 18:45:00 GMT'}]
|
2011-09-09
|
[array(['Lupi', 'J. P.', ''], dtype=object)
array(['Restuccia', 'A.', ''], dtype=object)
array(['Stephany', 'J.', ''], dtype=object)]
|
17,056 |
cond-mat/0406225
|
Robert Kitt
|
R. Kitt, J. Kalda
|
Properties of low variability periods in financial time series
|
14 pages, 5 figures, 3 tables, Submitted to Physica A
|
Physica A, 345, 2005, 622
|
10.1016/j.physa.2004.07.015
| null |
cond-mat.stat-mech q-fin.ST
| null |
Properties of low-variability periods in the time series are analysed. The
theoretical approach is used to show the relationship between the multi-scaling
of low-variability periods and multi-affinity of the time series. It is shown
that this technically simple method is capable of reveling more details about
time-series than the traditional multi-affine analysis. We have applied this
scaling analysis to financial time series: a number of daily currency and stock
index time series. The results show a good scaling behaviour for different
model parameters. The analysis of high-frequency USD-EUR exchange rate data
confirmed the theoretical expectations.
|
[{'version': 'v1', 'created': 'Wed, 9 Jun 2004 15:33:10 GMT'}
{'version': 'v2', 'created': 'Thu, 17 Jun 2004 18:33:43 GMT'}]
|
2008-12-02
|
[array(['Kitt', 'R.', ''], dtype=object)
array(['Kalda', 'J.', ''], dtype=object)]
|
17,057 |
1912.05528
|
Carlos Bengaly Jr.
|
Carlos A. P. Bengaly
|
Evidence for cosmic acceleration with next-generation surveys: A
model-independent approach
|
5 pages, 4 figures. Minor edition, MNRAS accepted
|
MNRAS, Volume 499, Issue 1, November 2020, Pages L6-L10
|
10.1093/mnrasl/slaa040
| null |
astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We quantify the evidence for cosmic acceleration using simulations of $H(z)$
measurements from SKA- and Euclid-like surveys. We perform a non-parametric
reconstruction of the Hubble parameters and its derivative to obtain the
deceleration parameter $q(z)$ using the Gaussian Processes method. This is a
completely model-independent approach, so we can determine whether the Universe
is undergoing accelerated expansion {\it regardless} of any assumption of a
dark energy model. We find that Euclid-like and SKA-like band 1 surveys can
probe cosmic acceleration at over $3$ and $5\sigma$ confidence level,
respectively. By combining them with a SKA-like band 2 survey, which reaches
lower redshift ranges, the evidence for a current accelerated phase increases
to over $7\sigma$. This is a significant improvement from current $H(z)$
measurements from cosmic chronometers and galaxy redshift surveys, showing that
these surveys can underpin cosmic acceleration in a model-independent way.
|
[{'version': 'v1', 'created': 'Wed, 11 Dec 2019 18:53:52 GMT'}
{'version': 'v2', 'created': 'Sun, 22 Mar 2020 16:46:05 GMT'}]
|
2020-10-06
|
[array(['Bengaly', 'Carlos A. P.', ''], dtype=object)]
|
17,058 |
1806.04508
|
Ndapandula Nakashole
|
Ndapa Nakashole and Raphael Flauger
|
Characterizing Departures from Linearity in Word Translation
|
ACL 2018
| null | null | null |
cs.CL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigate the behavior of maps learned by machine translation methods.
The maps translate words by projecting between word embedding spaces of
different languages. We locally approximate these maps using linear maps, and
find that they vary across the word embedding space. This demonstrates that the
underlying maps are non-linear. Importantly, we show that the locally linear
maps vary by an amount that is tightly correlated with the distance between the
neighborhoods on which they are trained. Our results can be used to test
non-linear methods, and to drive the design of more accurate maps for word
translation.
|
[{'version': 'v1', 'created': 'Thu, 7 Jun 2018 23:04:19 GMT'}
{'version': 'v2', 'created': 'Fri, 15 Jun 2018 23:15:14 GMT'}]
|
2018-06-19
|
[array(['Nakashole', 'Ndapa', ''], dtype=object)
array(['Flauger', 'Raphael', ''], dtype=object)]
|
17,059 |
0908.2805
|
Victor Galitski
|
Meng Cheng, Kai Sun, Victor Galitski, S. Das Sarma
|
Stable topological phases in a family of two-dimensional fermion models
|
6 pages, 2 figures, new references added
|
Phys. Rev. B 81, 024504 (2010)
|
10.1103/PhysRevB.81.024504
| null |
cond-mat.str-el cond-mat.supr-con
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that a large class of two-dimensional spinless fermion models exhibit
topological superconducting phases characterized by a non-zero Chern number.
More specifically, we consider a generic one-band Hamiltonian of spinless
fermions that is invariant under both time-reversal, $\mathbb{T}$, and a group
of rotations and reflections, $\mathbb{G}$, which is either the dihedral
point-symmetry group of an underlying lattice, $\mathbb{G}=D_n$, or the
orthogonal group of rotations in continuum, $\mathbb{G}={\rm O}(2)$. Pairing
symmetries are classified according to the irreducible representations of $
\mathbb{T} \otimes \mathbb{G}$. We prove a theorem that for any two-dimensional
representation of this group, a time-reversal symmetry breaking paired state is
energetically favorable. This implies that the ground state of any spinless
fermion Hamiltonian in continuum or on a square lattice with a singly-connected
Fermi surface is always a topological superconductor in the presence of
attraction in at least one channel. Motivated by this discovery, we examine
phase diagrams of two specific lattice models with nearest-neighbor hopping and
attraction on a square lattice and a triangular lattice. In accordance with the
general theorem, the former model exhibits only a topological $(p + ip)$-wave
state, while the latter shows a doping-tuned quantum phase transition from such
state to a non-topological, but still exotic $f$-wave superconductor.
|
[{'version': 'v1', 'created': 'Thu, 20 Aug 2009 16:29:58 GMT'}
{'version': 'v2', 'created': 'Wed, 25 Nov 2009 14:38:00 GMT'}]
|
2010-01-27
|
[array(['Cheng', 'Meng', ''], dtype=object)
array(['Sun', 'Kai', ''], dtype=object)
array(['Galitski', 'Victor', ''], dtype=object)
array(['Sarma', 'S. Das', ''], dtype=object)]
|
17,060 |
hep-ph/0004252
|
Shoichi Sasaki
|
Shoichi Sasaki (RIKEN BNL Research Center)
|
N* Spectrum in Lattice QCD
|
Invited talk given at Jefferson Lab Workshop on The Physics of
Excited Nucleons (NSTAR2000), Newport News, VA, Feb. 16-19, 2000, Latex, 10
pages, 3 figures
| null | null | null |
hep-ph hep-lat
| null |
We investigate the mass of the parity partner $N^* (1/2^{-})$ of the nucleon
$N(1/2^{+})$, in lattice QCD using a new lattice discretization scheme for
fermions, domain wall fermions (DWF). DWF possess exact chiral symmetry and
flavor symmetry, both of which are required for this problem, even at finite
lattice spacing. Our calculation reproduces the large mass splitting between
those two states, in good agreement with experiment. We also present
preliminary results for the mass of the positive-parity excited state
$N'(1/2^{+})$.
|
[{'version': 'v1', 'created': 'Thu, 27 Apr 2000 15:24:14 GMT'}
{'version': 'v2', 'created': 'Fri, 28 Apr 2000 19:10:24 GMT'}]
|
2009-09-25
|
[array(['Sasaki', 'Shoichi', '', 'RIKEN BNL Research Center'], dtype=object)]
|
17,061 |
1803.10456
|
Shinnosuke Izumi
|
Shinnosuke Izumi and Hiroyuki Takagi
|
Compact homomorphisms between algebras of $C(K)$-valued Lipschitz
functions
| null | null | null | null |
math.FA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We give a complete description of homomorphisms between two Banach algebras
of Lipschitz functions with values in continuous functions. We also
characterize the compactness of those homomorphisms.
|
[{'version': 'v1', 'created': 'Wed, 28 Mar 2018 08:27:32 GMT'}]
|
2018-03-29
|
[array(['Izumi', 'Shinnosuke', ''], dtype=object)
array(['Takagi', 'Hiroyuki', ''], dtype=object)]
|
17,062 |
1903.10380
|
Andrei Afanasev
|
Boqun Dong, Andrei Afanasev, Rolland P. Johnson, and Mona E. Zaghloul
|
Enhancement of Photoemission on P-type GaAs using Surface Acoustic Waves
|
5 pages, 4 figures
| null | null | null |
physics.app-ph cond-mat.mtrl-sci physics.ins-det
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We demonstrate that photoemission properties of GaAs photocathodes (PCs) can
be altered by surface acoustic waves (SAWs) generated on the PC surface due to
dynamical piezoelectric fields of SAWs. Simulations with COMSOL indicate that
electron effective lifetime in p-doped GaAs may increase by a factor of 10x to
20x. It implies a significant, by a factor of 2x to 3x, increase of quantum
efficiency (QE) for GaAs PCs. Essential steps in device fabrication are
demonstrated, including deposition of an additional layer of ZnO for
piezoelectric effect enhancement, measurements of I-V characteristic of the SAW
device, and ability to survive high-temperature annealing.
|
[{'version': 'v1', 'created': 'Mon, 25 Mar 2019 14:55:15 GMT'}]
|
2019-03-26
|
[array(['Dong', 'Boqun', ''], dtype=object)
array(['Afanasev', 'Andrei', ''], dtype=object)
array(['Johnson', 'Rolland P.', ''], dtype=object)
array(['Zaghloul', 'Mona E.', ''], dtype=object)]
|
17,063 |
1209.1806
|
Regina Aquino Maria
|
R. M. Aquino and E. N. Marcos and Sonia Trepode
|
On the existence of a derived equivalence between a Koszul algebra and
its Yoneda algebra
| null | null | null | null |
math.RT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we focus on the relations between the derived categories of a
Koszul algebra and its Yoneda algebra, in particular we want to consider the
cases where these categories are triangularly equivalent. We prove that the
simply connected Koszul algebras are derived equivalent to their Yoneda
algebras. We consider derived discrete Koszul algebras, and we give necessary
and sufficient conditions for these Koszul algebras to be derived equivalent to
their Yoneda algebras. Finally, we look at the Koszul algebras such that they
are derived equivalent to a hereditary algebra. In the case that the hereditary
algebra is tame, we characterize when these algebras are derived equivalent to
their Yoneda algebras.
|
[{'version': 'v1', 'created': 'Sun, 9 Sep 2012 15:23:50 GMT'}]
|
2012-09-11
|
[array(['Aquino', 'R. M.', ''], dtype=object)
array(['Marcos', 'E. N.', ''], dtype=object)
array(['Trepode', 'Sonia', ''], dtype=object)]
|
17,064 |
2001.11017
|
Konstantin D Pandl
|
Konstantin D. Pandl, Scott Thiebes, Manuel Schmidt-Kraepelin, Ali
Sunyaev
|
On the Convergence of Artificial Intelligence and Distributed Ledger
Technology: A Scoping Review and Future Research Agenda
| null | null | null | null |
cs.CR cs.AI cs.DC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Developments in Artificial Intelligence (AI) and Distributed Ledger
Technology (DLT) currently lead to lively debates in academia and practice. AI
processes data to perform tasks that were previously thought possible only for
humans. DLT has the potential to create consensus over data among a group of
participants in uncertain environments. In recent research, both technologies
are used in similar and even the same systems. Examples include the design of
secure distributed ledgers or the creation of allied learning systems
distributed across multiple nodes. This can lead to technological convergence,
which in the past, has paved the way for major innovations in information
technology. Previous work highlights several potential benefits of the
convergence of AI and DLT but only provides a limited theoretical framework to
describe upcoming real-world integration cases of both technologies. We aim to
contribute by conducting a systematic literature review on previous work and
providing rigorously derived future research opportunities. This work helps
researchers active in AI or DLT to overcome current limitations in their field,
and practitioners to develop systems along with the convergence of both
technologies.
|
[{'version': 'v1', 'created': 'Wed, 29 Jan 2020 18:57:27 GMT'}
{'version': 'v2', 'created': 'Wed, 5 Feb 2020 13:36:25 GMT'}]
|
2020-02-06
|
[array(['Pandl', 'Konstantin D.', ''], dtype=object)
array(['Thiebes', 'Scott', ''], dtype=object)
array(['Schmidt-Kraepelin', 'Manuel', ''], dtype=object)
array(['Sunyaev', 'Ali', ''], dtype=object)]
|
17,065 |
0710.0346
|
Thomas Gehrmann
|
A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover, G. Heinrich
|
Infrared structure of e+e- --> 3 jets at NNLO
|
An oversubtraction of large-angle soft radiation has been corrected.
New version contains detailed explanation of the correction terms, and a
discussion of their numerical impact
|
JHEP 0711:058,2007
|
10.1088/1126-6708/2007/11/058
|
ZU-TH 18/07, IPPP/07/62, Edinburgh 2007-26
|
hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We describe the calculation of the next-to-next-to-leading order (NNLO) QCD
corrections to three-jet production and related event shape observables in
electron-positron annihilation. Infrared singularities due to double real
radiation at tree level and single real radiation at one loop are subtracted
from the full QCD matrix elements using antenna functions, which are then
integrated analytically and added to the two loop contribution. Using this
antenna subtraction method, we obtain numerically finite contributions from
five-parton and four-parton processes, and observe an explicit analytic
cancellation of infrared poles in the four-parton and three-parton
contributions. All contributions are implemented in a flexible parton-level
event generator programme, allowing the numerical computation of any
infrared-safe observable related to three-jet final states to NNLO accuracy.
|
[{'version': 'v1', 'created': 'Mon, 1 Oct 2007 17:52:08 GMT'}
{'version': 'v2', 'created': 'Wed, 21 Nov 2007 15:53:41 GMT'}
{'version': 'v3', 'created': 'Tue, 25 Nov 2008 12:42:37 GMT'}]
|
2008-12-30
|
[array(['Ridder', 'A. Gehrmann-De', ''], dtype=object)
array(['Gehrmann', 'T.', ''], dtype=object)
array(['Glover', 'E. W. N.', ''], dtype=object)
array(['Heinrich', 'G.', ''], dtype=object)]
|
17,066 |
1812.02931
|
Mengji Chen
|
Mengji Chen, Yang Wu, Yang Liu, Kyusup Lee, Xuepeng Qiu, Pan He,
Jiawei Yu, and Hyunsoo Yang
|
Current-enhanced broadband THz emission from spintronic devices
| null | null | null | null |
physics.app-ph cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
An ultra-broadband THz emitter covering a wide range of frequencies from 0.1
to 10 THz is highly desired for spectroscopy applications. So far, spintronic
THz emitters have been proven as one class of efficient THz sources with a
broadband spectrum while the performance in the lower frequency range (0.1 to
0.5 THz) limits its applications. In this work, we demonstrate a novel concept
of a current-enhanced broad spectrum from spintronic THz emitters combined with
semiconductor materials. We observe a 2-3 order enhancement of the THz signals
in a lower THz frequency range (0.1 to 0.5 THz), in addition to a comparable
performance at higher frequencies from this hybrid emitter. With a bias
current, there is a photoconduction contribution from semiconductor materials,
which can be constructively interfered with the THz signals generated from the
magnetic heterostructures driven by the inverse spin Hall effect. Our findings
push forward the utilization of metallic heterostructures-based THz emitters on
the ultra-broadband THz emission spectroscopy.
|
[{'version': 'v1', 'created': 'Fri, 7 Dec 2018 07:00:22 GMT'}]
|
2018-12-10
|
[array(['Chen', 'Mengji', ''], dtype=object)
array(['Wu', 'Yang', ''], dtype=object)
array(['Liu', 'Yang', ''], dtype=object)
array(['Lee', 'Kyusup', ''], dtype=object)
array(['Qiu', 'Xuepeng', ''], dtype=object)
array(['He', 'Pan', ''], dtype=object)
array(['Yu', 'Jiawei', ''], dtype=object)
array(['Yang', 'Hyunsoo', ''], dtype=object)]
|
17,067 |
gr-qc/0301109
|
Hans-Thomas Elze
|
H.-T. Elze
|
Emergent discrete time and quantization: relativistic particle with
extradimensions
|
13 pages, 6 figures; replaced with embedded figures and fixed layout
|
Phys.Lett.A310:110-118,2003
|
10.1016/S0375-9601(03)00340-2
| null |
gr-qc hep-th quant-ph
| null |
We study the reparametrization invariant system of a classical relativistic
particle moving in (5+1) dimensions, of which two internal ones are
compactified to form a torus. A discrete physical time is constructed based on
a quasi-local invariant observable. Due to ergodicity, it is simply related to
the proper time on average. The external motion in Minkowski space can then be
described as a unitary quantum mechanical evolution.
|
[{'version': 'v1', 'created': 'Mon, 27 Jan 2003 09:10:45 GMT'}
{'version': 'v2', 'created': 'Tue, 11 Mar 2003 20:56:35 GMT'}
{'version': 'v3', 'created': 'Wed, 12 Mar 2003 13:17:49 GMT'}]
|
2010-11-19
|
[array(['Elze', 'H. -T.', ''], dtype=object)]
|
17,068 |
1904.00073
|
Elena Balashova
|
Elena Balashova, Jiangping Wang, Vivek Singh, Bogdan Georgescu, Brian
Teixeira, Ankur Kapoor
|
3D Organ Shape Reconstruction from Topogram Images
|
12 pages, accepted to International Conference on Information
Processing in Medical Imaging (IPMI)
| null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Automatic delineation and measurement of main organs such as liver is one of
the critical steps for assessment of hepatic diseases, planning and
postoperative or treatment follow-up. However, addressing this problem
typically requires performing computed tomography (CT) scanning and complicated
postprocessing of the resulting scans using slice-by-slice techniques. In this
paper, we show that 3D organ shape can be automatically predicted directly from
topogram images, which are easier to acquire and have limited exposure to
radiation during acquisition, compared to CT scans. We evaluate our approach on
the challenging task of predicting liver shape using a generative model. We
also demonstrate that our method can be combined with user annotations, such as
a 2D mask, for improved prediction accuracy. We show compelling results on 3D
liver shape reconstruction and volume estimation on 2129 CT scans.
|
[{'version': 'v1', 'created': 'Fri, 29 Mar 2019 19:51:54 GMT'}]
|
2019-04-02
|
[array(['Balashova', 'Elena', ''], dtype=object)
array(['Wang', 'Jiangping', ''], dtype=object)
array(['Singh', 'Vivek', ''], dtype=object)
array(['Georgescu', 'Bogdan', ''], dtype=object)
array(['Teixeira', 'Brian', ''], dtype=object)
array(['Kapoor', 'Ankur', ''], dtype=object)]
|
17,069 |
math-ph/0102013
|
Denes Petz
|
D. Petz
|
Entropy, von Neumann and the von Neumann entropy
|
10 pages, LATEX file
|
John von Neumann and the Foundations of Quantum Physics, eds. M.
Redei and M. Stoltzner, Kluwer, 2001
| null | null |
math-ph math.MP
| null |
This paper is an introduction to the von Neumann entropy in a historic
approach. Von Neumann's gedanken experiment is repeated, which led him to the
formula of thermodynamic entropy of a statistical operator. In the analysis of
his ideas we stress the role of superselection sectors and summarize von
Neumann's knowledge about quantum mechanical entropy. The final part of the
paper is devoted to important developments discovered long after von Neumann's
work. Subadditivity and the interpretation of the von Neumann entropy as
channel capacity are among those.
|
[{'version': 'v1', 'created': 'Fri, 9 Feb 2001 20:11:47 GMT'}]
|
2007-05-23
|
[array(['Petz', 'D.', ''], dtype=object)]
|
17,070 |
1311.4016
|
Jeanne N. Clelland
|
Jeanne N. Clelland and Thomas A. Ivey
|
Geometric characterization and classification of B\"acklund
transformations of sine-Gordon type
|
37 pages
| null | null | null |
math.DG nlin.SI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We begin by considering several properties commonly (but not universally)
possessed by B\"acklund transformations between hyperbolic Monge-Amp\`ere
equations: wavelike nature of the underlying equations, preservation of
independent variables, quasilinearity of the transformation, and autonomy of
the transformation. We show that, while these properties all appear to depend
on the formulation of both the underlying PDEs and the B\"acklund
transformation in a particular coordinate system, in fact they all have
intrinsic geometric meaning, independent of any particular choice of local
coordinates.
Next, we consider the problem of classifying B\"acklund transformations with
these properties. We show that, apart from a family of transformations between
Monge-integrable equations, there exists only a finite-dimensional family of
such transformations, including the well-known family of B\"acklund
transformations for the sine-Gordon equation. The full extent of this family is
not yet determined, but our analysis has uncovered previously unknown
transformations among generalizations of Liouville's equation.
|
[{'version': 'v1', 'created': 'Sat, 16 Nov 2013 04:30:39 GMT'}
{'version': 'v2', 'created': 'Thu, 23 Aug 2018 21:17:29 GMT'}]
|
2018-08-27
|
[array(['Clelland', 'Jeanne N.', ''], dtype=object)
array(['Ivey', 'Thomas A.', ''], dtype=object)]
|
17,071 |
astro-ph/0603490
|
Carl R. Gwinn
|
T.V. Smirnova, C.R. Gwinn, and V.I. Shishov
|
Interstellar Scintillation of PSR J0437-4715
|
9 pages, 3 figures, 2 tables
| null |
10.1051/0004-6361:20054281
| null |
astro-ph
| null |
We studied the turbulence spectrum of the local interstellar plasma in the
direction of PSR J0437-4715, on the basis of our observations and those
reported earlier by others. We combine these data to form a structure function
for the variations of phase along the line of sight to the pulsar. For
observations that did not report them, we infer modulation indices from a
theoretical model. We find that all of the observations fit a power-law
spectrum of turbulence with index n=3.46+/-0.20. We suggest that differences
among reported values for scintillation bandwidth and timescale for this pulsar
arise from differences in observing parameters. We suggest that refractive
effects dominate for this line of sight, with refraction angle about twice the
diffraction angle at 330 MHz observing frequency. We suggest that the
scattering of this pulsar lies in a layer of enhanced turbulence, about 10 pc
from the Sun. We propose that the flux variations of the extragalactic source
PKS 0405-385 arise in the same scattering layer.
|
[{'version': 'v1', 'created': 'Fri, 17 Mar 2006 22:14:41 GMT'}]
|
2009-11-11
|
[array(['Smirnova', 'T. V.', ''], dtype=object)
array(['Gwinn', 'C. R.', ''], dtype=object)
array(['Shishov', 'V. I.', ''], dtype=object)]
|
17,072 |
1809.03746
|
Zhiwen Hu
|
Zhiwen Hu, Zixuan Bai, Yuzhe Yang, Zijie Zheng, Kaigui Bian, and
Lingyang Song
|
UAV Aided Aerial-Ground IoT for Air Quality Sensing in Smart City:
Architecture, Technologies and Implementation
|
17 pages, 6 figures, submitted to IEEE Network Magazine
| null | null | null |
cs.OH
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
As air pollution is becoming the largest environmental health risk, the
monitoring of air quality has drawn much attention in both theoretical studies
and practical implementations. In this article, we present a real-time,
fine-grained and power-efficient air quality monitoring system based on aerial
and ground sensing. The architecture of this system consists of four layers:
the sensing layer to collect data, the transmission layer to enable
bidirectional communications, the processing layer to analyze and process the
data, and the presentation layer to provide graphic interface for users. Three
major techniques are investigated in our implementation, given by the data
processing, the deployment strategy and the power control. For data processing,
spacial fitting and short-term prediction are performed to eliminate the
influences of the incomplete measurement and the latency of data uploading. The
deployment strategies of ground sensing and aerial sensing are investigated to
improve the quality of the collected data. The power control is further
considered to balance between power consumption and data accuracy. Our
implementation has been deployed in Peking University and Xidian University
since February 2018, and has collected about 100 thousand effective data
samples by June 2018.
|
[{'version': 'v1', 'created': 'Tue, 11 Sep 2018 08:44:19 GMT'}]
|
2018-09-12
|
[array(['Hu', 'Zhiwen', ''], dtype=object)
array(['Bai', 'Zixuan', ''], dtype=object)
array(['Yang', 'Yuzhe', ''], dtype=object)
array(['Zheng', 'Zijie', ''], dtype=object)
array(['Bian', 'Kaigui', ''], dtype=object)
array(['Song', 'Lingyang', ''], dtype=object)]
|
17,073 |
2305.14146
|
Qunying Song
|
Qunying Song, Emelie Engstr\"om, Per Runeson
|
Industry Practices for Challenging Autonomous Driving Systems with
Critical Scenarios
|
29 pages, 3 figures, submitted to a journal
| null | null | null |
cs.SE
|
http://creativecommons.org/licenses/by/4.0/
|
Testing autonomous driving systems for safety and reliability is extremely
complex. A primary challenge is identifying the relevant test scenarios,
especially the critical ones that may expose hazards or risks of harm to
autonomous vehicles and other road users. There are several proposed methods
and tools for critical scenario identification, while the industry practices,
such as the selection, implementation, and limitations of the approaches, are
not well understood. In this study, we conducted 10 interviews with 13
interviewees from 7 companies in autonomous driving in Sweden. We used thematic
modeling to analyse and synthesize the interview data. We found there are
little joint efforts in the industry to explore different approaches and tools,
and every approach has its own limitations and weaknesses. To that end, we
recommend combining different approaches available, collaborating among
different stakeholders, and continuously learning the field of critical
scenario identification and testing. The contributions of our study are the
exploration and synthesis of the industry practices and related challenges for
critical scenario identification and testing, and the potential increase of the
industry relevance for future studies in related topics.
|
[{'version': 'v1', 'created': 'Tue, 23 May 2023 15:13:11 GMT'}]
|
2023-05-24
|
[array(['Song', 'Qunying', ''], dtype=object)
array(['Engström', 'Emelie', ''], dtype=object)
array(['Runeson', 'Per', ''], dtype=object)]
|
17,074 |
2204.01219
|
Jialin Zhang
|
Hui Hu, Jialin Zhang and Hongwei Yu
|
Harvesting Entanglement by non-identical detectors with different energy
gaps
|
16 pages,5 figures
| null |
10.1007/JHEP05(2022)112
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
It has been shown that the vacuum state of a free quantum field is entangled
and such vacuum entanglement can be harvested by a pair of initially
uncorrelated detectors interacting locally with the vacuum field for a finite
time. In this paper, we examine the entanglement harvesting phenomenon of two
non-identical inertial detectors with different energy gaps locally interacting
with massless scalar fields via a Gaussian switching function. We focus on how
entanglement harvesting depends on the energy gap difference from two
perspectives: the amount of entanglement harvested and the
harvesting-achievable separation between the two detectors. In the sense of the
amount of entanglement, we find that as long as the inter-detector separation
is not too small with respect to the interaction duration parameter, two
non-identical detectors could extract more entanglement from the vacuum state
than the identical detectors. There exists an optimal value of the energy gap
difference when the inter-detector separation is sufficiently large that
renders the harvested entanglement to peak. Regarding the harvesting-achievable
separation, we further find that the presence of an energy gap difference
generally enlarges the harvesting-achievable separation range. Our results
suggest that the non-identical detectors may be advantageous to extracting
entanglement from vacuum in certain circumstances as compared to identical
detectors.
|
[{'version': 'v1', 'created': 'Mon, 4 Apr 2022 03:10:15 GMT'}]
|
2022-06-01
|
[array(['Hu', 'Hui', ''], dtype=object)
array(['Zhang', 'Jialin', ''], dtype=object)
array(['Yu', 'Hongwei', ''], dtype=object)]
|
17,075 |
hep-ph/9209249
|
Patrick O'Donnell
|
Patrick J. O'Donnell and Humphrey K.K. Tung
|
Exclusive Rare Decay $B\rightarrow K^{\ast}\gamma$
|
7 pages, UTPT-92-12, IP-ASTP-14, REVTEX
| null | null | null |
hep-ph
| null |
We show that the exclusive decay $B\rightarrow K^{\ast}\gamma$ can be related
to the semileptonic decay $B\rightarrow\rho e\bar{\nu}$ using heavy-quark
symmetry and $SU(3)$ flavor symmetry. A direct measurement of the
$q^{2}$-spectrum for the semileptonic decay can provide relevant information
for the exclusive rare decay.
|
[{'version': 'v1', 'created': 'Thu, 17 Sep 1992 15:23:09 GMT'}]
|
2007-05-23
|
[array(["O'Donnell", 'Patrick J.', ''], dtype=object)
array(['Tung', 'Humphrey K. K.', ''], dtype=object)]
|
17,076 |
1803.03120
|
Ilona Iglewska-Nowak
|
Ilona Iglewska-Nowak
|
Directional wavelets on $n$-dimensional spheres
|
30 pages
|
Appl. Comput. Harmon. Anal. 44 (2018), no. 2, 201-229
|
10.1016/j.acha.2016.04.008
| null |
math.CA math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Directional Poisson wavelets, being directional derivatives of Poisson
kernel, are introduced on $n$-dimensional spheres. It is shown that, slightly
modified and together with another wavelet family, they are an admissible
wavelet pair according to the definition derived from the theory of approximate
identities. We investigate some of the properties of directional Poisson
wavelets, such as recursive formulae for their Fourier coefficients or explicit
representations as functions of spherical variables (for some of the wavelets).
We derive also an explicit formula for their Euclidean limits.
|
[{'version': 'v1', 'created': 'Mon, 5 Mar 2018 11:00:19 GMT'}]
|
2018-03-09
|
[array(['Iglewska-Nowak', 'Ilona', ''], dtype=object)]
|
17,077 |
1805.09889
|
Giampaolo Cristadoro
|
Roberto Artuso, Giampaolo Cristadoro, Manuele Onofri, Mattia Radice
|
Non-homogeneous persistent random walks and averaged environment for the
L\'evy-Lorentz gas
|
11 pages, 3 figures
|
J. Stat. Mech. (2018) 083209
|
10.1088/1742-5468/aad822
| null |
cond-mat.stat-mech math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider transport properties for a non-homogeneous persistent random
walk, that may be viewed as a mean-field version of the L\'evy-Lorentz gas,
namely a 1-d model characterized by a fat polynomial tail of the distribution
of scatterers' distance, with parameter $\alpha$. By varying the value of
$\alpha$ we have a transition from normal transport to superdiffusion, which we
characterize by appropriate continuum limits.
|
[{'version': 'v1', 'created': 'Thu, 24 May 2018 20:42:47 GMT'}]
|
2019-06-14
|
[array(['Artuso', 'Roberto', ''], dtype=object)
array(['Cristadoro', 'Giampaolo', ''], dtype=object)
array(['Onofri', 'Manuele', ''], dtype=object)
array(['Radice', 'Mattia', ''], dtype=object)]
|
17,078 |
2306.01794
|
Yangtian Zhang
|
Yangtian Zhan, Zuobai Zhang, Bozitao Zhong, Sanchit Misra, Jian Tang
|
DiffPack: A Torsional Diffusion Model for Autoregressive Protein
Side-Chain Packing
|
Under review
| null | null | null |
q-bio.QM cs.LG
|
http://creativecommons.org/licenses/by/4.0/
|
Proteins play a critical role in carrying out biological functions, and their
3D structures are essential in determining their functions. Accurately
predicting the conformation of protein side-chains given their backbones is
important for applications in protein structure prediction, design and
protein-protein interactions. Traditional methods are computationally intensive
and have limited accuracy, while existing machine learning methods treat the
problem as a regression task and overlook the restrictions imposed by the
constant covalent bond lengths and angles. In this work, we present DiffPack, a
torsional diffusion model that learns the joint distribution of side-chain
torsional angles, the only degrees of freedom in side-chain packing, by
diffusing and denoising on the torsional space. To avoid issues arising from
simultaneous perturbation of all four torsional angles, we propose
autoregressively generating the four torsional angles from \c{hi}1 to \c{hi}4
and training diffusion models for each torsional angle. We evaluate the method
on several benchmarks for protein side-chain packing and show that our method
achieves improvements of 11.9% and 13.5% in angle accuracy on CASP13 and
CASP14, respectively, with a significantly smaller model size (60x fewer
parameters). Additionally, we show the effectiveness of our method in enhancing
side-chain predictions in the AlphaFold2 model. Code will be available upon the
accept.
|
[{'version': 'v1', 'created': 'Thu, 1 Jun 2023 09:22:09 GMT'}]
|
2023-06-06
|
[array(['Zhan', 'Yangtian', ''], dtype=object)
array(['Zhang', 'Zuobai', ''], dtype=object)
array(['Zhong', 'Bozitao', ''], dtype=object)
array(['Misra', 'Sanchit', ''], dtype=object)
array(['Tang', 'Jian', ''], dtype=object)]
|
17,079 |
2101.04192
|
Marco Marcozzi
|
Marco Marcozzi and Leonardo Mostarda
|
Quantum Consensus: an overview
| null | null | null | null |
quant-ph cs.DC cs.ET
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
We review the literature about reaching agreement in quantum networks, also
called quantum consensus. After a brief introduction to the key feature of
quantum computing, allowing the reader with no quantum theory background to
have minimal tools to understand, we report a formal definition of quantum
consensus and the protocols proposed. Proposals are classified according to the
quantum feature used to achieve agreement.
|
[{'version': 'v1', 'created': 'Mon, 11 Jan 2021 21:10:06 GMT'}]
|
2021-01-13
|
[array(['Marcozzi', 'Marco', ''], dtype=object)
array(['Mostarda', 'Leonardo', ''], dtype=object)]
|
17,080 |
2101.01643
|
Marco Panza
|
Francesca Boccuni and Marco Panza
|
Frege's Theory of Real Numbers: A consistent Rendering
| null |
Review of Symbolic Logic, 2021
| null | null |
math.LO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Frege's definition of the real numbers, as envisaged in the second volume of
\textit{Grundgesetze der Arithmetik}, is fatally flawed by the inconsistency of
Frege's ill-fated \textit{Basic Law V}. We restate Frege's definition in a
consistent logical framework and investigate whether it can provide a logical
foundation of real analysis. Our conclusion will deem it doubtful that such a
foundation along the lines of Frege's own indications is possible at all.
|
[{'version': 'v1', 'created': 'Tue, 5 Jan 2021 16:48:20 GMT'}]
|
2021-01-06
|
[array(['Boccuni', 'Francesca', ''], dtype=object)
array(['Panza', 'Marco', ''], dtype=object)]
|
17,081 |
1209.0056
|
Brendan Juba
|
Brendan Juba
|
Learning implicitly in reasoning in PAC-Semantics
| null | null | null | null |
cs.AI cs.DS cs.LG cs.LO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider the problem of answering queries about formulas of propositional
logic based on background knowledge partially represented explicitly as other
formulas, and partially represented as partially obscured examples
independently drawn from a fixed probability distribution, where the queries
are answered with respect to a weaker semantics than usual -- PAC-Semantics,
introduced by Valiant (2000) -- that is defined using the distribution of
examples. We describe a fairly general, efficient reduction to limited versions
of the decision problem for a proof system (e.g., bounded space treelike
resolution, bounded degree polynomial calculus, etc.) from corresponding
versions of the reasoning problem where some of the background knowledge is not
explicitly given as formulas, only learnable from the examples. Crucially, we
do not generate an explicit representation of the knowledge extracted from the
examples, and so the "learning" of the background knowledge is only done
implicitly. As a consequence, this approach can utilize formulas as background
knowledge that are not perfectly valid over the distribution---essentially the
analogue of agnostic learning here.
|
[{'version': 'v1', 'created': 'Sat, 1 Sep 2012 05:13:00 GMT'}]
|
2012-09-04
|
[array(['Juba', 'Brendan', ''], dtype=object)]
|
17,082 |
2208.06947
|
Suining He
|
Mahan Tabatabaie, James Maniscalco, Connor Lynch, Suining He
|
Towards Spatio-Temporal Cross-Platform Graph Embedding Fusion for Urban
Traffic Flow Prediction
|
5 pages, UrbComp 2022
| null | null | null |
cs.LG
|
http://creativecommons.org/licenses/by/4.0/
|
In this paper, we have proposed STC-GEF, a novel Spatio-Temporal
Cross-platform Graph Embedding Fusion approach for the urban traffic flow
prediction. We have designed a spatial embedding module based on graph
convolutional networks (GCN) to extract the complex spatial features within
traffic flow data. Furthermore, to capture the temporal dependencies between
the traffic flow data from various time intervals, we have designed a temporal
embedding module based on recurrent neural networks. Based on the observations
that different transportation platforms trip data (e.g., taxis, Uber, and Lyft)
can be correlated, we have designed an effective fusion mechanism that combines
the trip data from different transportation platforms and further uses them for
cross-platform traffic flow prediction (e.g., integrating taxis and
ride-sharing platforms for taxi traffic flow prediction). We have conducted
extensive real-world experimental studies based on real-world trip data of
yellow taxis and ride-sharing (Lyft) from the New York City (NYC), and
validated the accuracy and effectiveness of STC-GEF in fusing different
transportation platform data and predicting traffic flows.
|
[{'version': 'v1', 'created': 'Mon, 15 Aug 2022 00:10:49 GMT'}
{'version': 'v2', 'created': 'Sun, 21 Aug 2022 00:09:52 GMT'}]
|
2022-08-23
|
[array(['Tabatabaie', 'Mahan', ''], dtype=object)
array(['Maniscalco', 'James', ''], dtype=object)
array(['Lynch', 'Connor', ''], dtype=object)
array(['He', 'Suining', ''], dtype=object)]
|
17,083 |
2012.06241
|
Haoyu Sang
|
Haoyu Sang, Xiaodong Shi, Xiaorong Zhou, Xianwei Kang, Jianbei Liu
|
Feasibility study of $CP$ Violation in $\tau^{-}\to
K_{S}\pi^{-}\nu_{\tau}$ decays at Super Tau Charm Facility
| null | null |
10.1088/1674-1137/abeb07
| null |
hep-ex
|
http://creativecommons.org/licenses/by/4.0/
|
We report a feasibility study of $CP$ violation of $\tau^{-}\rightarrow
K_{S}\pi^{-} \nu_{\tau}$ decay at a Super Tau Charm Facility~(STCF).With an
expected luminosity of 1~ab$^{-1}$ collected by STCF per year at a
center-of-mass energy of 4.26 GeV, the statistical sensitivity for the $CP$
violation is determined to be of order $9.7\times10^{-4}$ by measuring the
decay-rate difference between $\tau^{+}\rightarrow
K_{S}\pi^{+}\bar{\nu}_{\tau}$ and $\tau^{-}\rightarrow K_{S}\pi^{-}
\nu_{\tau}$. The analysis is performed using a reliable fast simulation
software package, which can describe the detector responses properly and vary
the responses flexibly for further optimization. Moreover, the energy-dependent
efficiencies for reconstructing $\tau^{-}\rightarrow K_{S}\pi^{-} \nu_{\tau}$
are presented and the expected $CP$ sensitivity is proportional to
$1/\sqrt{\mathcal{L}}$ in the energy region from 4.0 to 5.0 GeV. The
sensitivity of $CP$ violation is of order $3.1\times10^{-4}$ with 10~ab$^{-1}$
integrated luminosity, which is equivalent to ten years data taking in this
energy region at STCF.
|
[{'version': 'v1', 'created': 'Fri, 11 Dec 2020 11:05:08 GMT'}
{'version': 'v2', 'created': 'Mon, 1 Mar 2021 12:00:47 GMT'}
{'version': 'v3', 'created': 'Tue, 2 Mar 2021 06:52:17 GMT'}]
|
2021-05-26
|
[array(['Sang', 'Haoyu', ''], dtype=object)
array(['Shi', 'Xiaodong', ''], dtype=object)
array(['Zhou', 'Xiaorong', ''], dtype=object)
array(['Kang', 'Xianwei', ''], dtype=object)
array(['Liu', 'Jianbei', ''], dtype=object)]
|
17,084 |
1205.2045
|
Svetlana Starikova
|
S. Starikova, S. Berta, A. Franceschini, L. Marchetti, G. Rodighiero,
M. Vaccari, A. Vikhlinin
|
Clustering of star-forming galaxies detected in mid-infrared with the
Spitzer wide-area survey
|
15 pages, 12 figures
|
ApJ, 751, 126, 2012
|
10.1088/0004-637X/751/2/126
| null |
astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We discuss the clustering properties of galaxies with signs of ongoing star
formation detected by the Spitzer Space Telescope at 24mum band in the SWIRE
Lockman Hole field. The sample of mid-IR-selected galaxies includes ~20,000
objects detected above a flux threshold of S24mum=310muJy. We adopt
optical/near-IR color selection criteria to split the sample into the
lower-redshift and higher-redshift galaxy populations. We measure the angular
correlation function on scales of theta=0.01-3.5 deg, from which, using the
Limber inversion along with the redshift distribution established for similarly
selected source populations in the GOODS fields (Rodighiero et al. 2010), we
obtain comoving correlation lengths of r0=4.98+-0.28 h^-1 Mpc and r0
=8.04+-0.69 h^-1 Mpc for the low-z (<z>=0.7) and high-z (<z>=1.7) subsamples,
respectively. Comparing these measurements with the correlation functions of
dark matter halos identified in the Bolshoi cosmological simulation (Klypin et
al. 2011}, we find that the high-redshift objects reside in progressively more
massive halos reaching Mtot>3e12 h^-1 Msun, compared to Mtot>7e11 h^-1 Msun for
the low-redshift population. Approximate estimates of the IR luminosities based
on the catalogs of 24mum sources in the GOODS fields show that our high-z
subsample represents a population of "distant ULIRGs" with LIR>10^12Lsun, while
the low-z subsample mainly consists of "LIRGs", LIR~10^11Lsun. The comparison
of number density of the 24mum selected galaxies and of dark matter halos with
derived minimum mass Mtot shows that only 20% of such halos may host
star-forming galaxies.
|
[{'version': 'v1', 'created': 'Wed, 9 May 2012 17:37:16 GMT'}]
|
2012-05-30
|
[array(['Starikova', 'S.', ''], dtype=object)
array(['Berta', 'S.', ''], dtype=object)
array(['Franceschini', 'A.', ''], dtype=object)
array(['Marchetti', 'L.', ''], dtype=object)
array(['Rodighiero', 'G.', ''], dtype=object)
array(['Vaccari', 'M.', ''], dtype=object)
array(['Vikhlinin', 'A.', ''], dtype=object)]
|
17,085 |
math/0703532
|
Igor Rivin
|
Igor Rivin
|
Walks on groups, counting reducible matrices, polynomials, and surface
and free group automorphisms
|
Revision (with different title and many logistical changes) of
math.NT/0604489
| null | null | null |
math.NT math.GT
| null |
We prove sharp limit theorems on random walks on graphs with values in finite
groups. We then apply these results (together with some elementary algebraic
geometry, number theory, and representation theory) to finite quotients of
lattices in semisimple Lie groups (specifically SL(n,Z) and Sp(2n, Z) to show
that a ``random'' element in one of these lattices has irreducible
characteristic polynomials (over the integers. The term ``random'' can be
defined in at least two ways (in terms of height and also in terms of word
length in terms of a generating set) -- we show the result using both
definitions.
We use the above results to show that a random (in terms of word length)
element of the mapping class group of a surface is pseudo-Anosov, and that a a
random free group automorphism is irreducible with irreducible powers (or
strongly irreducible).
|
[{'version': 'v1', 'created': 'Mon, 19 Mar 2007 00:24:34 GMT'}]
|
2007-05-23
|
[array(['Rivin', 'Igor', ''], dtype=object)]
|
17,086 |
1510.04920
|
Marek Miller
|
Marek Miller, Robert Olkiewicz
|
Extremal positive maps on $M_{3}(\mathbb{C})$ and idempotent matrices
|
Multiple corrections suggested during the process of peer-review. The
paper is to appear in the journal: Open Systems & Information Dynamics
|
Open Systems & Information Dynamics Vol. 23, No. 1 (2016) 1650001
|
10.1142/S1230161216500013
| null |
math-ph math.MP quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A new method of analysing positive bistochastic maps on the algebra of
complex matrices $M_{3}$ has been proposed. By identifying the set of such maps
with a convex set of linear operators on $\mathbb{R}^{8}$, one can employ
techniques from the theory of compact affine semigroups to obtain results
concerning asymptotic properties of positive maps. It turns out that the
idempotent elements play a crucial role in classifying the convex set into
subsets, in which representations of extremal positive maps are to be found. It
has been show that all positive bistochastic maps, extremal in the set of all
positive maps of $M_{3}$, that are not Jordan isomorphisms of $M_3$ are
represented by matrices that fall into two possible categories, determined by
the simplest idempotent matrices: one by the zero matrix, and the other by a
one dimensional orthogonal projection. Some norm conditions for matrices
representing possible extremal maps have been specified and examples of maps
from both categories have been brought up, based on the results published
previously.
|
[{'version': 'v1', 'created': 'Fri, 16 Oct 2015 15:36:19 GMT'}
{'version': 'v2', 'created': 'Mon, 21 Dec 2015 09:12:13 GMT'}]
|
2016-03-30
|
[array(['Miller', 'Marek', ''], dtype=object)
array(['Olkiewicz', 'Robert', ''], dtype=object)]
|
17,087 |
2103.00377
|
Zhicheng Feng
|
Zhicheng Feng, Zhenye Li, Jiping Zhang
|
Jordan decomposition for weights and the blockwise Alperin weight
conjecture
| null | null | null | null |
math.RT math.GR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The Alperin weight conjecture was reduced to simple groups by the work of
Navarro, Tiep and Sp\"ath. To prove Alperin weight conjecture, it suffices to
show that all finite non-abelian simple groups are BAW-good. We reduce the
verification of the inductive conditons for groups of Lie type in non-defining
characteristic to quasi-isolated blocks.
|
[{'version': 'v1', 'created': 'Sun, 28 Feb 2021 02:42:07 GMT'}
{'version': 'v2', 'created': 'Thu, 8 Apr 2021 13:53:54 GMT'}
{'version': 'v3', 'created': 'Mon, 26 Apr 2021 02:06:42 GMT'}
{'version': 'v4', 'created': 'Sat, 9 Jul 2022 01:15:44 GMT'}]
|
2022-07-12
|
[array(['Feng', 'Zhicheng', ''], dtype=object)
array(['Li', 'Zhenye', ''], dtype=object)
array(['Zhang', 'Jiping', ''], dtype=object)]
|
17,088 |
1711.10640
|
Zurab Kakushadze
|
Zura Kakushadze and Willie Yu
|
Notes on Fano Ratio and Portfolio Optimization
|
29 pages; a few trivial typos corrected, no other changes
|
Journal of Risk & Control 5(1) (2018) 1-33
| null | null |
q-fin.PM q-fin.RM
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We discuss - in what is intended to be a pedagogical fashion - generalized
"mean-to-risk" ratios for portfolio optimization. The Sharpe ratio is only one
example of such generalized "mean-to-risk" ratios. Another example is what we
term the Fano ratio (which, unlike the Sharpe ratio, is independent of the time
horizon). Thus, for long-only portfolios optimizing the Fano ratio generally
results in a more diversified and less skewed portfolio (compared with
optimizing the Sharpe ratio). We give an explicit algorithm for such
optimization. We also discuss (Fano-ratio-inspired) long-short strategies that
outperform those based on optimizing the Sharpe ratio in our backtests.
|
[{'version': 'v1', 'created': 'Wed, 29 Nov 2017 01:28:49 GMT'}
{'version': 'v2', 'created': 'Wed, 11 Apr 2018 15:37:34 GMT'}]
|
2018-04-12
|
[array(['Kakushadze', 'Zura', ''], dtype=object)
array(['Yu', 'Willie', ''], dtype=object)]
|
17,089 |
2010.07219
|
Vinicius Mesquita de Pinho
|
Vinicius M. de Pinho, Marcello L. R. de Campos, Luis Uzeda Garcia and
Dalia Popescu
|
Vision-Aided Radio: User Identity Match in Radio and Video Domains Using
Machine Learning
|
Accepted for publication in the IEEE Access
|
in IEEE Access, vol. 8, pp. 209619-209629, 2020
|
10.1109/ACCESS.2020.3038926
| null |
cs.CV
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
5G is designed to be an essential enabler and a leading infrastructure
provider in the communication technology industry by supporting the demand for
the growing data traffic and a variety of services with distinct requirements.
The use of deep learning and computer vision tools has the means to increase
the environmental awareness of the network with information from visual data.
Information extracted via computer vision tools such as user position, movement
direction, and speed can be promptly available for the network. However, the
network must have a mechanism to match the identity of a user in both visual
and radio systems. This mechanism is absent in the present literature.
Therefore, we propose a framework to match the information from both visual and
radio domains. This is an essential step to practical applications of computer
vision tools in communications. We detail the proposed framework training and
deployment phases for a presented setup. We carried out practical experiments
using data collected in different types of environments. The work compares the
use of Deep Neural Network and Random Forest classifiers and shows that the
former performed better across all experiments, achieving classification
accuracy greater than 99%.
|
[{'version': 'v1', 'created': 'Wed, 14 Oct 2020 16:32:22 GMT'}
{'version': 'v2', 'created': 'Mon, 16 Nov 2020 12:57:57 GMT'}
{'version': 'v3', 'created': 'Mon, 14 Dec 2020 20:47:52 GMT'}]
|
2020-12-16
|
[array(['de Pinho', 'Vinicius M.', ''], dtype=object)
array(['de Campos', 'Marcello L. R.', ''], dtype=object)
array(['Garcia', 'Luis Uzeda', ''], dtype=object)
array(['Popescu', 'Dalia', ''], dtype=object)]
|
17,090 |
1009.5049
|
Bingbing Wang
|
Dian Peng, Biao Wu, Panming Fu, Bingbing Wang, Jiangbin Gong and
Zong-Chao Yan
|
Sensitive frequency-dependence of the carrier-envelope phase effect on
bound-bound transition: an interference perspective
| null |
Phys. Rev. A 82, 053407 (2010)
|
10.1103/PhysRevA.82.053407
| null |
physics.atom-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigate numerically with Hylleraas coordinates the frequency
dependence of the carrier-envelope phase (CEP) effect on bound-bound
transitions of helium induced by an ultrashort laser pulse of few cycles. We
find that the CEP effect is very sensitive to the carrier frequency of the
laser pulse, occurring regularly even at far-off resonance frequencies. By
analyzing a two-level model, we find that the CEP effect can be attributed to
the quantum interference between neighboring multi-photon transition pathways,
which is made possible by the broadened spectrum of the ultrashort laser pulse.
A general picture is developed along this line to understand the sensitivity of
the CEP effect to laser's carrier frequency. Multi-level influence on the CEP
effect is also discussed.
|
[{'version': 'v1', 'created': 'Sun, 26 Sep 2010 02:12:21 GMT'}]
|
2013-01-07
|
[array(['Peng', 'Dian', ''], dtype=object)
array(['Wu', 'Biao', ''], dtype=object)
array(['Fu', 'Panming', ''], dtype=object)
array(['Wang', 'Bingbing', ''], dtype=object)
array(['Gong', 'Jiangbin', ''], dtype=object)
array(['Yan', 'Zong-Chao', ''], dtype=object)]
|
17,091 |
cond-mat/0205002
|
Pradeep Kumar
|
P. Kumar and A. Saxena
|
Thermodynamics of a Higher Order Phase Transition: Scaling Exponents and
Scaling Laws
|
10 pages, no figures
|
Philosophical Magazine B82, 1201-1209 (2002)
|
10.1080/13642810210127011
| null |
cond-mat.supr-con cond-mat.stat-mech
| null |
The well known scaling laws relating critical exponents in a second order
phase transition have been generalized to the case of an arbitrarily higher
order phase transition. In a higher order transition, such as one suggested for
the superconducting transition in Ba$_{0.6}$K$_{0.4}$BiO$_3$ and in
Bi$_2$Sr$_2$CaCu$_2$O$_8$, there are singularities in higher order derivatives
of the free energy. A relation between exponents of different observables has
been found, regardless of whether the exponents are classical (mean-field
theory, no fluctuations, integer order of a transition) or not (fluctuation
effects included). We also comment on the phase transition in a thin film.
|
[{'version': 'v1', 'created': 'Tue, 30 Apr 2002 20:12:41 GMT'}]
|
2009-11-07
|
[array(['Kumar', 'P.', ''], dtype=object)
array(['Saxena', 'A.', ''], dtype=object)]
|
17,092 |
2112.12659
|
Jam Sadiq
|
Jam Sadiq, Thomas Dent, and Daniel Wysocki
|
Flexible and Fast Estimation of Binary Merger Population Distributions
with Adaptive KDE
|
12 pages, 12 figures, update the paper using publically available
data for GWTC-3 BBH events to include some new results and update the peak
detection method
| null |
10.1103/PhysRevD.105.123014
| null |
gr-qc astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The LIGO Scientific, Virgo and KAGRA Collaborations recently released the
third gravitational wave transient catalog or GWTC-3, significantly expanding
the number of gravitational wave (GW) signals. To address the -- still
uncertain -- formation channels of the source compact binaries, their
population properties must be characterized. The computational cost of the
Bayesian hierarchical methods employed thus far scales with the size of the
event catalogs, and such methods have until recently assumed fixed functional
forms for the source distribution. Here we propose a fast and flexible method
to reconstruct the population of LIGO--Virgo merging black hole (BH) binaries
without such assumptions. For sufficiently high event statistics and
sufficiently low individual event measurement error (relative to the scale of
population features) a kernel density estimator (KDE) reconstruction of the
event distribution will be accurate. We improve the accuracy and flexibility of
KDE for finite event statistics using an adaptive bandwidth KDE (awKDE). We
apply awKDE to publicly released parameter estimates for 44 significant (69) BH
binary mergers in GWTC-2 (GWTC-3), in combination with a fast polynomial fit of
search sensitivity, to obtain a non-parametric estimate of the mass
distribution, and compare to Bayesian hierarchical methods. We also demonstrate
a robust peak detection algorithm based on awKDE and use it to calculate the
significance of the apparent peak in the BH mass distribution around $35\,
M_\odot$. We find such a peak is very unlikely to have occurred if the true
distribution is a featureless power-law (significance of $3.6\sigma$ for
confident GWTC-2 BBH events, $3.0\sigma$ for confident GWTC-3 BBH events).
|
[{'version': 'v1', 'created': 'Thu, 23 Dec 2021 15:51:24 GMT'}
{'version': 'v2', 'created': 'Thu, 10 Feb 2022 10:12:45 GMT'}
{'version': 'v3', 'created': 'Wed, 25 May 2022 13:54:53 GMT'}]
|
2022-06-29
|
[array(['Sadiq', 'Jam', ''], dtype=object)
array(['Dent', 'Thomas', ''], dtype=object)
array(['Wysocki', 'Daniel', ''], dtype=object)]
|
17,093 |
1607.05346
|
Youssef Rami
|
A. Boudjaj and Y. Rami
|
On Spaces of Topological Complexity Two
|
6 pages
| null | null | null |
math.AT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we consider the classification of minimal cellular structures
of spaces of topological complexity two under some hypotheses on there graded
cohomological algebra. This continues the method used by M.Grant et al. in [1].
|
[{'version': 'v1', 'created': 'Mon, 18 Jul 2016 22:50:09 GMT'}
{'version': 'v2', 'created': 'Mon, 25 Jul 2016 23:17:51 GMT'}]
|
2016-07-27
|
[array(['Boudjaj', 'A.', ''], dtype=object)
array(['Rami', 'Y.', ''], dtype=object)]
|
17,094 |
1708.04391
|
Nicholas Guttenberg
|
Nicholas Guttenberg, Martin Biehl, Ryota Kanai
|
Learning body-affordances to simplify action spaces
|
4 pages, 4 figures
| null | null | null |
cs.AI cs.RO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Controlling embodied agents with many actuated degrees of freedom is a
challenging task. We propose a method that can discover and interpolate between
context dependent high-level actions or body-affordances. These provide an
abstract, low-dimensional interface indexing high-dimensional and time-
extended action policies. Our method is related to recent ap- proaches in the
machine learning literature but is conceptually simpler and easier to
implement. More specifically our method requires the choice of a n-dimensional
target sensor space that is endowed with a distance metric. The method then
learns an also n-dimensional embedding of possibly reactive body-affordances
that spread as far as possible throughout the target sensor space.
|
[{'version': 'v1', 'created': 'Tue, 15 Aug 2017 04:07:57 GMT'}]
|
2017-08-16
|
[array(['Guttenberg', 'Nicholas', ''], dtype=object)
array(['Biehl', 'Martin', ''], dtype=object)
array(['Kanai', 'Ryota', ''], dtype=object)]
|
17,095 |
1807.10006
|
David Krejcirik
|
Philippe Briet, Hamza Abdou Soimadou and David Krejcirik
|
Spectral analysis of sheared nanoribbons
|
21 pages, 3 figures
|
Z. Angew. Math. Phys. 70 (2019) 48
|
10.1007/s00033-019-1090-6
| null |
math-ph math.AP math.MP math.SP quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigate the spectrum of the Dirichlet Laplacian in a unbounded strip
subject to a new deformation of "shearing": the strip is built by translating a
segment oriented in a constant direction along an unbounded curve in the plane.
We locate the essential spectrum under the hypothesis that the projection of
the tangent vector of the curve to the direction of the segment admits a
(possibly unbounded) limit at infinity and state sufficient conditions which
guarantee the existence of discrete eigenvalues. We justify the optimality of
these conditions by establishing a spectral stability in opposite regimes. In
particular, Hardy-type inequalities are derived in the regime of repulsive
shearing.
|
[{'version': 'v1', 'created': 'Thu, 26 Jul 2018 08:19:38 GMT'}]
|
2020-06-26
|
[array(['Briet', 'Philippe', ''], dtype=object)
array(['Soimadou', 'Hamza Abdou', ''], dtype=object)
array(['Krejcirik', 'David', ''], dtype=object)]
|
17,096 |
1703.07821
|
Sergey Chernov
|
S.V. Chernov
|
Change in the Orbital Period of a Binary System Due to Dynamical Tides
for Main-Sequence Stars
| null |
Astronomy Letters 43, 186 (2017)
|
10.1134/S1063773717030033
| null |
astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigate the change in the orbital period of a binary system due to
dynamical tides by taking into account the evolution of a main-sequence star.
Three stars with masses of one, one and a half, and two solar masses are
considered. A star of one solar mass at lifetimes $t=4.57\times10^9$ yr closely
corresponds to our Sun. We show that a planet of one Jupiter mass revolving
around a star of one solar mass will fall onto the star in the main-sequence
lifetime of the star due to dynamical tides if the initial orbital period of
the planet is less than $P_{\rm orb}\approx2.8$ days. Planets of one Jupiter
mass with an orbital period$P_{\rm orb}\approx2$ days or shorter will fall onto
a star of one and a half and two solar masses in the mainsequence lifetime of
the star.
|
[{'version': 'v1', 'created': 'Wed, 22 Mar 2017 19:05:01 GMT'}]
|
2017-03-29
|
[array(['Chernov', 'S. V.', ''], dtype=object)]
|
17,097 |
0801.1141
|
Tobias Lutz
|
Tobias Lutz, Christoph Hausl, Ralf K\"otter
|
Coding Strategies for Noise-Free Relay Cascades with Half-Duplex
Constraint
|
Proceedings of the 2008 IEEE International Symposium on Information
Theory, Toronto, ON, Canada, July 6 - 11, 2008
| null |
10.1109/ISIT.2008.4595418
| null |
cs.IT math.IT
| null |
Two types of noise-free relay cascades are investigated. Networks where a
source communicates with a distant receiver via a cascade of half-duplex
constrained relays, and networks where not only the source but also a single
relay node intends to transmit information to the same destination. We
introduce two relay channel models, capturing the half-duplex constraint, and
within the framework of these models capacity is determined for the first
network type. It turns out that capacity is significantly higher than the rates
which are achievable with a straightforward time-sharing approach. A capacity
achieving coding strategy is presented based on allocating the transmit and
receive time slots of a node in dependence of the node's previously received
data. For the networks of the second type, an upper bound to the rate region is
derived from the cut-set bound. Further, achievability of the cut-set bound in
the single relay case is shown given that the source rate exceeds a certain
minimum value.
|
[{'version': 'v1', 'created': 'Tue, 8 Jan 2008 16:55:35 GMT'}
{'version': 'v2', 'created': 'Fri, 2 May 2008 13:42:04 GMT'}]
|
2016-11-15
|
[array(['Lutz', 'Tobias', ''], dtype=object)
array(['Hausl', 'Christoph', ''], dtype=object)
array(['Kötter', 'Ralf', ''], dtype=object)]
|
17,098 |
astro-ph/0701413
|
Kuntal Misra
|
Kuntal Misra (1), D. Bhattacharya (2), D. K. Sahu (3), Ram Sagar (1),
G. C. Anupama (4), A. J. Castro-Tirado (5), S. S. Guziy (5,6), B. C. Bhatt
(3) ((1) ARIES, Nainital (2) RRI, Bangalore (3) CREST, Hosakote, Bangalore
(4) IIA, Bangalore (5) IAA-CSIC, Granada, Spain (6) Nikolaev State
University, Nikolskaya, Ukraine)
|
Optical observations of GRB 060124 afterglow: A case for an injection
break
|
Accepted for publication in A&A
| null |
10.1051/0004-6361:20066539
| null |
astro-ph
| null |
We present broad band optical afterglow observations of a long duration GRB
060124 using the 1.04-m Sampurnanand Telescope at ARIES, Nainital and the
2.01-m HCT at IAO, Hanle, including the earliest ground based observations in R
band for this GRB. We determine the decay slope of the light curve at different
bands and examine the reality of a proposed jet break. We use data from our
observations as well as others reported in the literature to construct light
curves in different bands and make power law fits to them. The spectral slope
of the afterglow emission in the optical band is estimated. Our first R-band
observations were taken $\sim 0.038$~d after burst. We find that all available
optical data after this epoch are well fit by a single power law, with a
temporal flux decay index $\alpha\sim 0.94$. We do not find any evidence of a
jet break within our data, which extend till $\sim 2$~d after the burst. The
X-ray light curve, however, shows a distinct break around 0.6 day. We attribute
this break to a steepening of the electron energy spectrum at high energies. We
conclude that the above measurements are consistent with the picture of a
standard fireball evolution with no jet break within $t\sim 2$~days after the
burst. This sets a lower limit of $3\times 10^{50}$~erg to the total energy
released in the explosion.
|
[{'version': 'v1', 'created': 'Mon, 15 Jan 2007 11:25:32 GMT'}]
|
2009-11-13
|
[array(['Misra', 'Kuntal', ''], dtype=object)
array(['Bhattacharya', 'D.', ''], dtype=object)
array(['Sahu', 'D. K.', ''], dtype=object)
array(['Sagar', 'Ram', ''], dtype=object)
array(['Anupama', 'G. C.', ''], dtype=object)
array(['Castro-Tirado', 'A. J.', ''], dtype=object)
array(['Guziy', 'S. S.', ''], dtype=object)
array(['Bhatt', 'B. C.', ''], dtype=object)]
|
17,099 |
1506.08614
|
Phoebe Hamilton
|
LHCb collaboration: R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z.
Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G.
Alkhazov, P. Alvarez Cartelle, A.A. Alves Jr, S. Amato, S. Amerio, Y. Amhis,
L. An, L. Anderlini, J. Anderson, G. Andreassi, M. Andreotti, J.E. Andrews,
R.B. Appleby, O. Aquines Gutierrez, F. Archilli, P. d'Argent, A. Artamonov,
M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J.J. Back, A.
Badalov, C. Baesso, W. Baldini, R.J. Barlow, C. Barschel, S. Barsuk, W.
Barter, V. Batozskaya, V. Battista, A. Bay, L. Beaucourt, J. Beddow, F.
Bedeschi, I. Bediaga, L.J. Bel, V. Bellee, I. Belyaev, E. Ben-Haim, G.
Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, A. Bertolin, M.-O.
Bettler, M. van Beuzekom, A. Bien, S. Bifani, T. Bird, A. Birnkraut, A.
Bizzeti, T. Blake, F. Blanc, J. Blouw, S. Blusk, V. Bocci, A. Bondar, N.
Bondar, W. Bonivento, S. Borghi, M. Borsato, T.J.V. Bowcock, E. Bowen, C.
Bozzi, S. Braun, D. Brett, M. Britsch, T. Britton, J. Brodzicka, N.H. Brook,
A. Bursche, J. Buytaert, S. Cadeddu, R. Calabrese, M. Calvi, M. Calvo Gomez,
P. Campana, D. Campora Perez, L. Capriotti, A. Carbone, G. Carboni, R.
Cardinale, A. Cardini, P. Carniti, L. Carson, K. Carvalho Akiba, G. Casse, L.
Cassina, L. Castillo Garcia, M. Cattaneo, Ch. Cauet, G. Cavallero, R. Cenci,
M. Charles, Ph. Charpentier, M. Chefdeville, S. Chen, S.-F. Cheung, N.
Chiapolini, M. Chrzaszcz, X. Cid Vidal, G. Ciezarek, P.E.L. Clarke, M.
Clemencic, H.V. Cliff, J. Closier, V. Coco, J. Cogan, E. Cogneras, V. Cogoni,
L. Cojocariu, G. Collazuol, P. Collins, A. Comerma-Montells, A. Contu, A.
Cook, M. Coombes, S. Coquereau, G. Corti, M. Corvo, B. Couturier, G.A. Cowan,
D.C. Craik, A. Crocombe, M. Cruz Torres, S. Cunliffe, R. Currie, C.
D'Ambrosio, E. Dall'Occo, J. Dalseno, P.N.Y. David, A. Davis, K. De Bruyn, S.
De Capua, M. De Cian, J.M. De Miranda, L. De Paula, P. De Simone, C.-T. Dean,
D. Decamp, M. Deckenhoff, L. Del Buono, N. D\'el\'eage, M. Demmer, D.
Derkach, O. Deschamps, F. Dettori, B. Dey, A. Di Canto, F. Di Ruscio, H.
Dijkstra, S. Donleavy, F. Dordei, M. Dorigo, A. Dosil Su\'arez, D. Dossett,
A. Dovbnya, K. Dreimanis, L. Dufour, G. Dujany, F. Dupertuis, P. Durante, R.
Dzhelyadin, A. Dziurda, A. Dzyuba, S. Easo, U. Egede, V. Egorychev, S.
Eidelman, S. Eisenhardt, U. Eitschberger, R. Ekelhof, L. Eklund, I. El Rifai,
Ch. Elsasser, S. Ely, S. Esen, H.M. Evans, T. Evans, A. Falabella, C.
F\"arber, C. Farinelli, N. Farley, S. Farry, R. Fay, D. Ferguson, V.
Fernandez Albor, F. Ferrari, F. Ferreira Rodrigues, M. Ferro-Luzzi, S.
Filippov, M. Fiore, M. Fiorini, M. Firlej, C. Fitzpatrick, T. Fiutowski, K.
Fohl, P. Fol, M. Fontana, F. Fontanelli, R. Forty, O. Francisco, M. Frank, C.
Frei, M. Frosini, J. Fu, E. Furfaro, A. Gallas Torreira, D. Galli, S.
Gallorini, S. Gambetta, M. Gandelman, P. Gandini, Y. Gao, J. Garc\'ia
Pardi\~nas, J. Garra Tico, L. Garrido, D. Gascon, C. Gaspar, R. Gauld, L.
Gavardi, G. Gazzoni, A. Geraci, D. Gerick, E. Gersabeck, M. Gersabeck, T.
Gershon, Ph. Ghez, A. Gianelle, S. Gian\`i, V. Gibson, O. G. Girard, L.
Giubega, V.V. Gligorov, C. G\"obel, D. Golubkov, A. Golutvin, A. Gomes, C.
Gotti, M. Grabalosa G\'andara, R. Graciani Diaz, L.A. Granado Cardoso, E.
Graug\'es, E. Graverini, G. Graziani, A. Grecu, E. Greening, S. Gregson, P.
Griffith, L. Grillo, O. Gr\"unberg, B. Gui, E. Gushchin, Yu. Guz, T. Gys, T.
Hadavizadeh, C. Hadjivasiliou, G. Haefeli, C. Haen, S.C. Haines, S. Hall, P.
Hamilton, X. Han, S. Hansmann-Menzemer, N. Harnew, S.T. Harnew, J. Harrison,
J. He, T. Head, V. Heijne, K. Hennessy, P. Henrard, L. Henry, J.A. Hernando
Morata, E. van Herwijnen, M. He\ss, A. Hicheur, D. Hill, M. Hoballah, C.
Hombach, W. Hulsbergen, T. Humair, N. Hussain, D. Hutchcroft, D. Hynds, M.
Idzik, P. Ilten, R. Jacobsson, A. Jaeger, J. Jalocha, E. Jans, A. Jawahery,
F. Jing, M. John, D. Johnson, C.R. Jones, C. Joram, B. Jost, N. Jurik, S.
Kandybei, W. Kanso, M. Karacson, T.M. Karbach, S. Karodia, M. Kelsey, I.R.
Kenyon, M. Kenzie, T. Ketel, B. Khanji, C. Khurewathanakul, S. Klaver, K.
Klimaszewski, O. Kochebina, M. Kolpin, I. Komarov, R.F. Koopman, P.
Koppenburg, M. Kozeiha, L. Kravchuk, K. Kreplin, M. Kreps, G. Krocker, P.
Krokovny, F. Kruse, W. Kucewicz, M. Kucharczyk, V. Kudryavtsev, A. K. Kuonen,
K. Kurek, T. Kvaratskheliya, D. Lacarrere, G. Lafferty, A. Lai, D. Lambert,
G. Lanfranchi, C. Langenbruch, B. Langhans, T. Latham, C. Lazzeroni, R. Le
Gac, J. van Leerdam, J.-P. Lees, R. Lef\`evre, A. Leflat, J. Lefran\c{c}ois,
O. Leroy, T. Lesiak, B. Leverington, Y. Li, T. Likhomanenko, M. Liles, R.
Lindner, C. Linn, F. Lionetto, B. Liu, X. Liu, D. Loh, S. Lohn, I. Longstaff,
J.H. Lopes, D. Lucchesi, M. Lucio Martinez, H. Luo, A. Lupato, E. Luppi, O.
Lupton, N. Lusardi, F. Machefert, F. Maciuc, O. Maev, K. Maguire, S. Malde,
A. Malinin, G. Manca, G. Mancinelli, P. Manning, A. Mapelli, J. Maratas, J.F.
Marchand, U. Marconi, C. Marin Benito, P. Marino, R. M\"arki, J. Marks, G.
Martellotti, M. Martin, M. Martinelli, D. Martinez Santos, F. Martinez Vidal,
D. Martins Tostes, A. Massafferri, R. Matev, A. Mathad, Z. Mathe, C.
Matteuzzi, K. Matthieu, A. Mauri, B. Maurin, A. Mazurov, M. McCann, J.
McCarthy, A. McNab, R. McNulty, B. Meadows, F. Meier, M. Meissner, D.
Melnychuk, M. Merk, D.A. Milanes, M.-N. Minard, D.S. Mitzel, J. Molina
Rodriguez, I.A. Monroy, S. Monteil, M. Morandin, P. Morawski, A. Mord\`a,
M.J. Morello, J. Moron, A.B. Morris, R. Mountain, F. Muheim, J. M\"uller, K.
M\"uller, V. M\"uller, M. Mussini, B. Muster, P. Naik, T. Nakada, R.
Nandakumar, A. Nandi, I. Nasteva, M. Needham, N. Neri, S. Neubert, N.
Neufeld, M. Neuner, A.D. Nguyen, T.D. Nguyen, C. Nguyen-Mau, V. Niess, R.
Niet, N. Nikitin, T. Nikodem, D. Ninci, A. Novoselov, D.P. O'Hanlon, A.
Oblakowska-Mucha, V. Obraztsov, S. Ogilvy, O. Okhrimenko, R. Oldeman, C.J.G.
Onderwater, B. Osorio Rodrigues, J.M. Otalora Goicochea, A. Otto, P. Owen, A.
Oyanguren, A. Palano, F. Palombo, M. Palutan, J. Panman, A. Papanestis, M.
Pappagallo, L.L. Pappalardo, C. Pappenheimer, C. Parkes, G. Passaleva, G.D.
Patel, M. Patel, C. Patrignani, A. Pearce, A. Pellegrino, G. Penso, M. Pepe
Altarelli, S. Perazzini, P. Perret, L. Pescatore, K. Petridis, A. Petrolini,
M. Petruzzo, E. Picatoste Olloqui, B. Pietrzyk, T. Pila\v{r}, D. Pinci, A.
Pistone, A. Piucci, S. Playfer, M. Plo Casasus, T. Poikela, F. Polci, A.
Poluektov, I. Polyakov, E. Polycarpo, A. Popov, D. Popov, B. Popovici, C.
Potterat, E. Price, J.D. Price, J. Prisciandaro, A. Pritchard, C. Prouve, V.
Pugatch, A. Puig Navarro, G. Punzi, W. Qian, R. Quagliani, B. Rachwal, J.H.
Rademacker, M. Rama, M.S. Rangel, I. Raniuk, N. Rauschmayr, G. Raven, F.
Redi, S. Reichert, M.M. Reid, A.C. dos Reis, S. Ricciardi, S. Richards, M.
Rihl, K. Rinnert, V. Rives Molina, P. Robbe, A.B. Rodrigues, E. Rodrigues,
J.A. Rodriguez Lopez, P. Rodriguez Perez, S. Roiser, V. Romanovsky, A. Romero
Vidal, J. W. Ronayne, M. Rotondo, J. Rouvinet, T. Ruf, H. Ruiz, P. Ruiz
Valls, J.J. Saborido Silva, N. Sagidova, P. Sail, B. Saitta, V. Salustino
Guimaraes, C. Sanchez Mayordomo, B. Sanmartin Sedes, R. Santacesaria, C.
Santamarina Rios, M. Santimaria, E. Santovetti, A. Sarti, C. Satriano, A.
Satta, D.M. Saunders, D. Savrina, M. Schiller, H. Schindler, M. Schlupp, M.
Schmelling, T. Schmelzer, B. Schmidt, O. Schneider, A. Schopper, M.
Schubiger, M.-H. Schune, R. Schwemmer, B. Sciascia, A. Sciubba, A.
Semennikov, N. Serra, J. Serrano, L. Sestini, P. Seyfert, M. Shapkin, I.
Shapoval, Y. Shcheglov, T. Shears, L. Shekhtman, V. Shevchenko, A. Shires,
B.G. Siddi, R. Silva Coutinho, G. Simi, M. Sirendi, N. Skidmore, I.
Skillicorn, T. Skwarnicki, E. Smith, E. Smith, I. T. Smith, J. Smith, M.
Smith, H. Snoek, M.D. Sokoloff, F.J.P. Soler, F. Soomro, D. Souza, B. Souza
De Paula, B. Spaan, P. Spradlin, S. Sridharan, F. Stagni, M. Stahl, S. Stahl,
O. Steinkamp, O. Stenyakin, F. Sterpka, S. Stevenson, S. Stoica, S. Stone, B.
Storaci, S. Stracka, M. Straticiuc, U. Straumann, L. Sun, W. Sutcliffe, K.
Swientek, S. Swientek, V. Syropoulos, M. Szczekowski, P. Szczypka, T.
Szumlak, S. T'Jampens, A. Tayduganov, T. Tekampe, M. Teklishyn, G. Tellarini,
F. Teubert, C. Thomas, E. Thomas, J. van Tilburg, V. Tisserand, M. Tobin, J.
Todd, S. Tolk, L. Tomassetti, D. Tonelli, S. Topp-Joergensen, N. Torr, E.
Tournefier, S. Tourneur, K. Trabelsi, M.T. Tran, M. Tresch, A. Trisovic, A.
Tsaregorodtsev, P. Tsopelas, N. Tuning, A. Ukleja, A. Ustyuzhanin, U. Uwer,
C. Vacca, V. Vagnoni, G. Valenti, A. Vallier, R. Vazquez Gomez, P. Vazquez
Regueiro, C. V\'azquez Sierra, S. Vecchi, J.J. Velthuis, M. Veltri, G.
Veneziano, M. Vesterinen, B. Viaud, D. Vieira, M. Vieites Diaz, X.
Vilasis-Cardona, A. Vollhardt, D. Volyanskyy, D. Voong, A. Vorobyev, V.
Vorobyev, C. Vo\ss, J.A. de Vries, R. Waldi, C. Wallace, R. Wallace, J.
Walsh, S. Wandernoth, J. Wang, D.R. Ward, N.K. Watson, D. Websdale, A.
Weiden, M. Whitehead, G. Wilkinson, M. Wilkinson, M. Williams, M.P. Williams,
M. Williams, T. Williams, F.F. Wilson, J. Wimberley, J. Wishahi, W. Wislicki,
M. Witek, G. Wormser, S.A. Wotton, S. Wright, K. Wyllie, Y. Xie, Z. Xu, Z.
Yang, J. Yu, X. Yuan, O. Yushchenko, M. Zangoli, M. Zavertyaev, L. Zhang, Y.
Zhang, A. Zhelezov, A. Zhokhov, L. Zhong, S. Zucchelli
|
Measurement of the ratio of branching fractions
$\mathcal{B}(\overline{B}^0 \to
D^{*+}\tau^{-}\overline{\nu}_{\tau})/\mathcal{B}(\overline{B}^0 \to
D^{*+}\mu^{-}\overline{\nu}_{\mu})$
|
17 pages, 1 figure. v2 after referees' comments
|
Phys. Rev. Lett. 115, 111803 (2015)
|
10.1103/PhysRevLett.115.111803
|
CERN-PH-EP-2015-150, LHCb-PAPER-2015-025
|
hep-ex
|
http://creativecommons.org/licenses/by/4.0/
|
The branching fraction ratio $\mathcal{R}(D^{*}) \equiv
\mathcal{B}(\overline{B}^0 \to
D^{*+}\tau^{-}\overline{\nu}_{\tau})/\mathcal{B}(\overline{B}^0 \to
D^{*+}\mu^{-}\overline{\nu}_{\mu})$ is measured using a sample of proton-proton
collision data corresponding to 3.0\invfb of integrated luminosity recorded by
the LHCb experiment during 2011 and 2012. The tau lepton is identified in the
decay mode $\tau^{-} \to \mu^{-}\overline{\nu}_{\mu}\nu_{\tau}$. The
semitauonic decay is sensitive to contributions from non-Standard-Model
particles that preferentially couple to the third generation of fermions, in
particular Higgs-like charged scalars. A multidimensional fit to kinematic
distributions of the candidate $\overline{B}^0$ decays gives
$\mathcal{R}(D^{*}) = 0.336 \pm 0.027(stat) \pm 0.030 (syst)$. This result,
which is the first measurement of this quantity at a hadron collider, is 2.1
standard deviations larger than the value expected from lepton universality in
the Standard Model.
|
[{'version': 'v1', 'created': 'Mon, 29 Jun 2015 13:28:21 GMT'}
{'version': 'v2', 'created': 'Thu, 17 Sep 2015 16:32:35 GMT'}]
|
2023-02-24
|
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array(['Tournefier', 'E.', ''], dtype=object)
array(['Tourneur', 'S.', ''], dtype=object)
array(['Trabelsi', 'K.', ''], dtype=object)
array(['Tran', 'M. T.', ''], dtype=object)
array(['Tresch', 'M.', ''], dtype=object)
array(['Trisovic', 'A.', ''], dtype=object)
array(['Tsaregorodtsev', 'A.', ''], dtype=object)
array(['Tsopelas', 'P.', ''], dtype=object)
array(['Tuning', 'N.', ''], dtype=object)
array(['Ukleja', 'A.', ''], dtype=object)
array(['Ustyuzhanin', 'A.', ''], dtype=object)
array(['Uwer', 'U.', ''], dtype=object)
array(['Vacca', 'C.', ''], dtype=object)
array(['Vagnoni', 'V.', ''], dtype=object)
array(['Valenti', 'G.', ''], dtype=object)
array(['Vallier', 'A.', ''], dtype=object)
array(['Gomez', 'R. Vazquez', ''], dtype=object)
array(['Regueiro', 'P. Vazquez', ''], dtype=object)
array(['Sierra', 'C. Vázquez', ''], dtype=object)
array(['Vecchi', 'S.', ''], dtype=object)
array(['Velthuis', 'J. J.', ''], dtype=object)
array(['Veltri', 'M.', ''], dtype=object)
array(['Veneziano', 'G.', ''], dtype=object)
array(['Vesterinen', 'M.', ''], dtype=object)
array(['Viaud', 'B.', ''], dtype=object)
array(['Vieira', 'D.', ''], dtype=object)
array(['Diaz', 'M. Vieites', ''], dtype=object)
array(['Vilasis-Cardona', 'X.', ''], dtype=object)
array(['Vollhardt', 'A.', ''], dtype=object)
array(['Volyanskyy', 'D.', ''], dtype=object)
array(['Voong', 'D.', ''], dtype=object)
array(['Vorobyev', 'A.', ''], dtype=object)
array(['Vorobyev', 'V.', ''], dtype=object)
array(['Voß', 'C.', ''], dtype=object)
array(['de Vries', 'J. A.', ''], dtype=object)
array(['Waldi', 'R.', ''], dtype=object)
array(['Wallace', 'C.', ''], dtype=object)
array(['Wallace', 'R.', ''], dtype=object)
array(['Walsh', 'J.', ''], dtype=object)
array(['Wandernoth', 'S.', ''], dtype=object)
array(['Wang', 'J.', ''], dtype=object)
array(['Ward', 'D. R.', ''], dtype=object)
array(['Watson', 'N. K.', ''], dtype=object)
array(['Websdale', 'D.', ''], dtype=object)
array(['Weiden', 'A.', ''], dtype=object)
array(['Whitehead', 'M.', ''], dtype=object)
array(['Wilkinson', 'G.', ''], dtype=object)
array(['Wilkinson', 'M.', ''], dtype=object)
array(['Williams', 'M.', ''], dtype=object)
array(['Williams', 'M. P.', ''], dtype=object)
array(['Williams', 'M.', ''], dtype=object)
array(['Williams', 'T.', ''], dtype=object)
array(['Wilson', 'F. F.', ''], dtype=object)
array(['Wimberley', 'J.', ''], dtype=object)
array(['Wishahi', 'J.', ''], dtype=object)
array(['Wislicki', 'W.', ''], dtype=object)
array(['Witek', 'M.', ''], dtype=object)
array(['Wormser', 'G.', ''], dtype=object)
array(['Wotton', 'S. A.', ''], dtype=object)
array(['Wright', 'S.', ''], dtype=object)
array(['Wyllie', 'K.', ''], dtype=object)
array(['Xie', 'Y.', ''], dtype=object)
array(['Xu', 'Z.', ''], dtype=object)
array(['Yang', 'Z.', ''], dtype=object)
array(['Yu', 'J.', ''], dtype=object)
array(['Yuan', 'X.', ''], dtype=object)
array(['Yushchenko', 'O.', ''], dtype=object)
array(['Zangoli', 'M.', ''], dtype=object)
array(['Zavertyaev', 'M.', ''], dtype=object)
array(['Zhang', 'L.', ''], dtype=object)
array(['Zhang', 'Y.', ''], dtype=object)
array(['Zhelezov', 'A.', ''], dtype=object)
array(['Zhokhov', 'A.', ''], dtype=object)
array(['Zhong', 'L.', ''], dtype=object)
array(['Zucchelli', 'S.', ''], dtype=object)]
|
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