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Two-dimensional (2D) van der Waals (vdW) magnets represent one of the most
promising horizons for energy-efficient spintronic applications because their
broad range of electronic, magnetic and topological properties. Of particular
interest is the control of the magnetic properties of 2D materials by
femtosecond laser p... | http://arxiv.org/abs/2302.06964v1 |
Novel view synthesis from a single image has been a cornerstone problem for
many Virtual Reality applications that provide immersive experiences. However,
most existing techniques can only synthesize novel views within a limited range
of camera motion or fail to generate consistent and high-quality novel views
under si... | http://arxiv.org/abs/2303.17598v1 |
Owing to success in the data-rich domain of natural images, Transformers have
recently become popular in medical image segmentation. However, the pairing of
Transformers with convolutional blocks in varying architectural permutations
leaves their relative effectiveness to open interpretation. We introduce
Transformer A... | http://arxiv.org/abs/2304.04225v1 |
Current state-of-the-art object-centric models use slots and attention-based
routing for binding. However, this class of models has several conceptual
limitations: the number of slots is hardwired; all slots have equal capacity;
training has high computational cost; there are no object-level relational
factors within s... | http://arxiv.org/abs/2305.15001v3 |
Although most studies of strongly correlated systems away from equilibrium
have focused on clean systems, it is well known that disorder may significantly
modify observed properties in various nontrivial ways. The nonequilibrium
interplay of interaction and disorder in these systems thus requires further
investigation.... | http://arxiv.org/abs/2303.06495v1 |
Online Continual Learning (OCL) addresses the problem of training neural
networks on a continuous data stream where multiple classification tasks emerge
in sequence. In contrast to offline Continual Learning, data can be seen only
once in OCL, which is a very severe constraint. In this context, replay-based
strategies ... | http://arxiv.org/abs/2309.02870v2 |
Efficient structural repair of wind turbine blades is essential to limiting
global warming and reducing the Levelized Cost of Energy (LCOE). Repairs
carried out up-tower are sensitive to environmental conditions whose effect on
the material properties during processing needs to be accounted for to
accurately predict th... | http://arxiv.org/abs/2304.01375v1 |
Kitaev fermionic chain is one of the important physical models for studying
topological physics and quantum computing. We here propose an approach to
simulate the one-dimensional Kitaev model by a chain of superconducting qubit
circuits. Furthermore, we study the environmental effect on topological quantum
states of th... | http://arxiv.org/abs/2302.03834v1 |
Dorst et al. (2021) put forward a deference principle called Total Trust, and
characterise it in terms of accuracy: an agent totally trusts an expert iff
they expect the expert to be more accurate than them. This note gives a new
proof of their result using a global defnition of accuracy due to Konek
(Forthcoming), rat... | http://arxiv.org/abs/2304.11166v1 |
Satellite DNA are long tandemly repeating sequences in a genome and may be
organized as high-order repeats (HORs). They are enriched in centromeres and
are challenging to assemble. Existing algorithms for identifying satellite
repeats either require the complete assembly of satellites or only work for
simple repeat str... | http://arxiv.org/abs/2304.09729v1 |
Tensoring with type I algebras preserves elementary equivalence in the
category of tracial von Neumann algebras. The proof involves a novel and
general Feferman--Vaught-type theorem for direct integrals of metric
structures. | http://arxiv.org/abs/2304.08437v3 |
Access control mechanisms have been adopted in many real-world systems to
control resource sharing for the principals in the system. An error in the
access control policy (misconfiguration) can easily cause severe data leakage
and system exploitation. Researchers have developed several methodologies to
detect the acces... | http://arxiv.org/abs/2304.07704v1 |
Background: Globular clusters show strong correlations between different
elements, such as the well-known sodium-oxygen anticorrelation. One of the main
sources of uncertainty in this anticorrelation is the
$^{22}$Ne($p,\gamma$)$^{23}$Na reaction rate, due to the possible influence of
an unobserved resonance state at $... | http://arxiv.org/abs/2302.12939v2 |
Atomically precise graphene nanoribbons (GNRs) are predicted to exhibit
exceptional edge-related properties, such as localized edge states, spin
polarization, and half-metallicity. However, the absence of low-resistance
nano-scale electrical contacts to the GNRs hinders harnessing their properties
in field-effect trans... | http://arxiv.org/abs/2306.16070v1 |
We derive explicit asymptotic formulae for the joint moments of the $n_1$-th
and $n_2$-th derivatives of the characteristic polynomials of CUE random
matrices for any non-negative integers $n_1, n_2$. These formulae are expressed
in terms of determinants whose entries involve modified Bessel functions of the
first kind... | http://arxiv.org/abs/2307.01625v2 |
Let $G$ be a torsion-free, finitely-generated, nilpotent and metabelian
group. In this work we show that $G$ embeds into the group of orientation
preserving $C^{1+\alpha}$-diffeomorphisms of the compact interval, for all
$\alpha< 1/k$ where $k$ is the torsion-free rank of $G/A$ and $A$ is a maximal
abelian subgroup. We... | http://arxiv.org/abs/2305.00342v3 |
We consider the correlator $\langle \mathcal{L} \mathcal{K} \tilde{
\mathcal{K}} \rangle $ of the Lagrange operator of $\mathcal{N}=4$ super
Yang-Mills theory and two conjugate two-excitation operators in an $su(2)$
sector. We recover the planar one-loop anomalous dimension of the renormalised
operators from this hexag... | http://arxiv.org/abs/2310.04392v2 |
The many-body localization (MBL) proximity effect is an intriguing phenomenon
where a thermal bath localizes due to the interaction with a disordered system.
The interplay of thermal and non-ergodic behavior in these systems gives rise
to a rich phase diagram, whose exploration is an active field of research. In
this w... | http://arxiv.org/abs/2303.16876v1 |
Mode-locked ultrashort pulse sources with a repetition rate of up to several
tens of gigahertz greatly facilitate versatile photonic applications such as
frequency synthesis, metrology, radar, and optical communications. Dissipative
Kerr soliton microcombs provide an attractive solution as a broadband,
high-repetition-... | http://arxiv.org/abs/2306.02005v1 |
This paper investigates the application of deep learning models for lung
Computed Tomography (CT) image analysis. Traditional deep learning frameworks
encounter compatibility issues due to variations in slice numbers and
resolutions in CT images, which stem from the use of different machines.
Commonly, individual slice... | http://arxiv.org/abs/2303.08490v1 |
Nonlinear wave-wave coupling constitutes an important route for the
turbulence spectrum evolution in both space and laboratory plasmas. For
example, in a reactor relevant fusion plasma, a rich spectrum of symmetry
breaking shear Alfv\'en wave (SAW) instabilities are expected to be excited by
energetic fusion alpha part... | http://arxiv.org/abs/2306.15579v1 |
The single-channel Jost function is calculated with the computational
R-matrix on a Lagrange-Jacobi mesh, in order to study its behaviour at complex
wavenumbers. Three potentials derived from supersymmetric transformations are
used to test the accuracy of the method. Each of these potentials, with s-wave
or p-wave boun... | http://arxiv.org/abs/2306.12216v1 |
In this work we analyze the existence of electrically charged scalar clouds
which are bound states of a complex-valued massive scalar field in the
background of subextremal and extremal Kerr-Newman black holes (BH). In
particular, we reanalyze neutral (uncharged) clouds in extremal Kerr BH's. For
the extremal scenarios... | http://arxiv.org/abs/2307.15888v1 |
The quality of text-to-image generation is continuously improving, yet the
boundaries of its applicability are still unclear. In particular, refinement of
the text input with the objective of achieving better results - commonly called
prompt engineering - so far seems to have not been geared towards work with
pre-exist... | http://arxiv.org/abs/2302.08961v2 |
With various AI tools such as ChatGPT becoming increasingly popular, we are
entering a true AI era. We can foresee that exceptional AI tools will soon reap
considerable profits. A crucial question arise: should AI tools share revenue
with their training data providers in additional to traditional stakeholders
and share... | http://arxiv.org/abs/2305.02555v2 |
Learning the inverse dynamics of robots directly from data, adopting a
black-box approach, is interesting for several real-world scenarios where
limited knowledge about the system is available. In this paper, we propose a
black-box model based on Gaussian Process (GP) Regression for the
identification of the inverse dy... | http://arxiv.org/abs/2310.06585v2 |
Expectile, as the minimizer of an asymmetric quadratic loss function, is a
coherent risk measure and is helpful to use more information about the
distribution of the considered risk. In this paper, we propose a new risk
measure by replacing quantiles by expectiles, called expectile-based
conditional tail moment, and fo... | http://arxiv.org/abs/2310.18963v1 |
Two newly proposed Regge trajectory relations are employed to analyze the
heavy-light systems. One of the relations is
$M=m_1+m_2+C'+\beta_x\sqrt{x+c_{0x}}$, $(x=l,\,n_r)$. Another reads
$M=m_1+C'+\sqrt{\beta_x^2(x+c_{0x})+\frac{4}{3}\sqrt{{\pi}{\beta_x}}m^{3/2}_2(x+c_{0x})^{1/4}}$.
$M$ is the bound state mass. $m_1$ a... | http://arxiv.org/abs/2302.06794v4 |
A central notion in practical and theoretical machine learning is that of a
$\textit{weak learner}$, classifiers that achieve better-than-random
performance (on any given distribution over data), even by a small margin. Such
weak learners form the practical basis for canonical machine learning methods
such as boosting.... | http://arxiv.org/abs/2306.14101v1 |
Strong gravitationally lensed supernovae (glSNe) are a powerful probe to
obtain a measure of the expansion rate of the Universe, but they are also
extremely rare. To date, only two glSNe with multiple images strongly lensed by
galaxies have been found, but their short time delays make them unsuitable for
cosmography. H... | http://arxiv.org/abs/2307.12881v3 |
In this study, a source scheme based on source biasing as well as discrete
energy spectrum in the cylindrical geometry is presented for the simulations of
muon tomography in the GEANT4 toolkit. First, a lateral cylindrical surface and
a top circular disc act as a generation surface that surrounds the tomographic
setup.... | http://arxiv.org/abs/2307.03754v3 |
3D content manipulation is an important computer vision task with many
real-world applications (e.g., product design, cartoon generation, and 3D
Avatar editing). Recently proposed 3D GANs can generate diverse photorealistic
3D-aware contents using Neural Radiance fields (NeRF). However, manipulation of
NeRF still remai... | http://arxiv.org/abs/2306.12570v1 |
We consider suspened bilayer graphene under applied perpendicular electric
bias field that is known to generate a single particle gap $2\Delta$ and a
related electric polarization ${\cal P}$. We argue that the bias also drives a
quantum phase transition from band insulator to superfluid exciton condensate.
The transiti... | http://arxiv.org/abs/2301.07864v1 |
We propose the Hirota bilinearization of the Fokas-Lenells derivative
nonlinear Schrodinger equation with a non-vanishing background. The bilinear
method is applied using an auxilary function to obtain the dark one soliton
solution, dark two soliton solution and eventually the scheme for obtaining
dark N soliton soluti... | http://arxiv.org/abs/2307.15136v1 |
Recently, deep learning-based facial landmark detection has achieved
significant improvement. However, the semantic ambiguity problem degrades
detection performance. Specifically, the semantic ambiguity causes inconsistent
annotation and negatively affects the model's convergence, leading to worse
accuracy and instabil... | http://arxiv.org/abs/2306.02763v1 |
Dielectrophoresis is an electric field-based technique for moving neutral
particles through a fluid. When used for particle separation, dielectrophoresis
has many advantages compared to other methods, providing label-free operation
with greater control of the separation forces. In this paper, we design, build,
and test... | http://arxiv.org/abs/2302.10690v1 |
Structured kernel interpolation (SKI) accelerates Gaussian process (GP)
inference by interpolating the kernel covariance function using a dense grid of
inducing points, whose corresponding kernel matrix is highly structured and
thus amenable to fast linear algebra. Unfortunately, SKI scales poorly in the
dimension of t... | http://arxiv.org/abs/2305.14451v1 |
A normative electrographic activity map could be a powerful resource to
understand normal brain function and identify abnormal activity. Here, we
present a normative brain map using scalp EEG in terms of relative band power.
In this exploratory study we investigate its temporal stability, its similarity
to other imagin... | http://arxiv.org/abs/2304.03204v1 |
We present a general compiler to add the publicly verifiable deletion
property for various cryptographic primitives including public key encryption,
attribute-based encryption, and quantum fully homomorphic encryption. Our
compiler only uses one-way functions, or more generally hard quantum planted
problems for NP, whi... | http://arxiv.org/abs/2304.07062v1 |
Significant upgrades to Fermilab's accelerator complex have accompanied the
development of LBNF (the Long Baseline Neutrino Facility) and DUNE (Deep
Underground Neutrino Experiment). These improvements will facilitate 1-MW
operation of the NuMI (Neutrinos at the Main Injector) beam for the first time
this year through ... | http://arxiv.org/abs/2310.02085v1 |
Recent camera-based 3D object detection methods have introduced sequential
frames to improve the detection performance hoping that multiple frames would
mitigate the large depth estimation error. Despite improved detection
performance, prior works rely on naive fusion methods (e.g., concatenation) or
are limited to sta... | http://arxiv.org/abs/2306.08528v3 |
This write-up is intended to form part of the proceedings for Lepton-Photon
2023. We review the decays $b\rightarrow c \ell \bar \nu_\ell$ (where $\ell \in
\{e,\mu,\tau\}$) as well as $b\rightarrow s \mu^+ \mu^-$ and $b\rightarrow s
e^+ e^-$, giving the current state-of-the-art in terms of measurements. We
review fits ... | http://arxiv.org/abs/2307.07532v3 |
We introduce a framework to compute upper bounds for temporal correlations
achievable in open quantum system dynamics, obtained by repeated measurements
on the system. As these correlations arise by virtue of the environment acting
as a memory resource, such bounds are witnesses for the minimal dimension of an
effectiv... | http://arxiv.org/abs/2305.19175v2 |
This paper proposes a novel approach to predict epidemiological parameters by
integrating new real-time signals from various sources of information, such as
novel social media-based population density maps and Air Quality data. We
implement an ensemble of Convolutional Neural Networks (CNN) models using
various data so... | http://arxiv.org/abs/2307.01157v1 |
X-ray based imaging modalities are widely used in research, industry, and in
the medical field. Consequently, there is a strong motivation to improve their
performances with respect to resolution, dose, and contrast. Ghost imaging (GI)
is an imaging technique in which the images are reconstructed from measurements
with... | http://arxiv.org/abs/2306.16702v1 |
Ensemble methods are commonly used in classification due to their remarkable
performance. Achieving high accuracy in a data stream environment is a
challenging task considering disruptive changes in the data distribution, also
known as concept drift. A greater diversity of ensemble components is known to
enhance predic... | http://arxiv.org/abs/2308.10807v2 |
Defect Triage is a time-sensitive and critical process in a large-scale agile
software development lifecycle for e-commerce. Inefficiencies arising from
human and process dependencies in this domain have motivated research in
automated approaches using machine learning to accurately assign defects to
qualified teams. T... | http://arxiv.org/abs/2307.11344v1 |
Classical epidemiological models assume homogeneous populations. There have
been important extensions to model heterogeneous populations, when the identity
of the sub-populations is known, such as age group or geographical location.
Here, we propose two new methods to model the number of people infected with
COVID-19 o... | http://arxiv.org/abs/2302.04829v1 |
Generative AI techniques have opened the path for new generations of machines
in diverse domains. These machines have various capabilities for example, they
can produce images, generate answers or stories, and write codes based on the
"prompts" only provided by users. These machines are considered 'thinking
minds' beca... | http://arxiv.org/abs/2307.07526v1 |
Real-life multilingual systems should be able to efficiently incorporate new
languages as data distributions fed to the system evolve and shift over time.
To do this, systems need to handle the issue of catastrophic forgetting, where
the model performance drops for languages or tasks seen further in its past. In
this p... | http://arxiv.org/abs/2305.16252v1 |
Interfaces in FeCoB/MgO/FeCoB magnetic tunnel junction play a vital role in
controlling their magnetic and transport properties for various applications in
spintronics and magnetic recording media. In this work, interface structures of
a few nm thick FeCoB layers in FeCoB/MgO and MgO/FeCoB bilayers are
comprehensively ... | http://arxiv.org/abs/2307.00249v1 |
In this paper, we introduce several classes of non-{\sigma}-porous subsets of
a general Lebesgue space. Also, we study some linear dynamics of operators and
show that the set of all non-hypercyclic vectors of a sequence of weighted
translation operators on Lp-spaces is not {\sigma}-porous. | http://arxiv.org/abs/2301.02908v1 |
We present several measurement schemes for accessing separability criteria
for continuous-variable bipartite quantum systems. Starting from moments of the
bosonic mode operators, criteria suitable to witness entanglement are expressed
in terms of multimode spin observables via the Jordan Schwinger map. These
observable... | http://arxiv.org/abs/2305.02227v2 |
This paper proposes Allophant, a multilingual phoneme recognizer. It requires
only a phoneme inventory for cross-lingual transfer to a target language,
allowing for low-resource recognition. The architecture combines a
compositional phone embedding approach with individually supervised phonetic
attribute classifiers in... | http://arxiv.org/abs/2306.04306v2 |
The linear magnetoelectric effect (ME) is the phenomenon by which an electric
field produces a magnetization. Its observation requires both time-reversal and
space-inversion symmetries to be broken, as in multiferroics. While the ME
effect has only been studied in insulating materials, it can actually exist in
non-cent... | http://arxiv.org/abs/2310.01598v1 |
Emotion recognition using Electroencephalogram (EEG) signals has emerged as a
significant research challenge in affective computing and intelligent
interaction. However, effectively combining global and local features of EEG
signals to improve performance in emotion recognition is still a difficult
task. In this study,... | http://arxiv.org/abs/2305.05548v1 |
It has been demonstrated that the MUltiple SIgnal Classification (MUSIC)
algorithm is fast, stable, and effective for localizing small anomalies in
microwave imaging. For the successful application of MUSIC, exact values of
permittivity, conductivity, and permeability of the background must be known.
If one of these va... | http://arxiv.org/abs/2307.05331v1 |
Let $\mathcal{G}$ be the greedy algorithm that, for each $\theta\in (0,1]$,
produces an infinite sequence of positive integers $(a_n)_{n=1}^\infty$
satisfying $\sum_{n=1}^\infty 1/a_n = \theta$. For natural numbers $p < q$, let
$\Upsilon(p,q)$ denote the smallest positive integer $j$ such that $p$ divides
$q+j$. Contin... | http://arxiv.org/abs/2306.12564v2 |
The Spectrometer and Telescope for Imaging X-rays (STIX) on board Solar
Orbiter observes solar X-ray emission in the range of 4 – 150 keV and
produces spectra and images of solar flares over a wide range of flare
magnitudes. During nominal operation, STIX continuously generates data. A
constant data flow requires... | http://arxiv.org/abs/2302.00497v2 |
Prediction of reactive transport in porous media remains challenging when
pore scale incomplete mixing is at play. Previous experimental studies
investigated chemical reactions in porous media by visualizing reaction product
or reactants mostly in uniform flow. However, the local reaction rate, which is
necessary to in... | http://arxiv.org/abs/2306.05018v1 |
Precision medicine seeks to discover an optimal personalized treatment plan
and thereby provide informed and principled decision support, based on the
characteristics of individual patients. With recent advancements in medical
imaging, it is crucial to incorporate patient-specific imaging features in the
study of indiv... | http://arxiv.org/abs/2304.13003v1 |
Causal discovery of genome-scale networks is important for identifying
pathways from genes to observable traits - e.g. differences in cell function,
disease, drug resistance and others. Causal learners based on graphical models
rely on interventional samples to orient edges in the network. However, these
models have no... | http://arxiv.org/abs/2304.03210v1 |
For a probability P in $R^d$ its center outward distribution function
$F_{\pm}$, introduced in Chernozhukov et al. (2017) and Hallin et al. (2021),
is a new and successful concept of multivariate distribution function based on
mass transportation theory. This work proves, for a probability P with density
locally bounde... | http://arxiv.org/abs/2303.16862v2 |
Photonic quantum computers, programmed within the framework of the
measurement-based quantum computing (MBQC), currently concur with gate-based
platforms in the race towards useful quantum advantage, and some algorithms
emerged as main candidates to reach this goal in the near term. Yet, the
majority of these algorithm... | http://arxiv.org/abs/2304.03576v1 |
We consider the stability of six-dimensional singly rotating Myers-Perry
black holes under massive scalar perturbations. Using Leaver's continued
fraction method, we compute the quasinormal modes of the massive scalar fields.
All modes found are damped under the quasinormal boundary conditions. It is
also found that lo... | http://arxiv.org/abs/2307.02338v2 |
We study the evolution of the physical variables in $f\left( Q\right)
$-gravity for two families of symmetric and flat connections in a spatially
flat Friedmann--Lema\^{\i}tre--Robertson--Walker geometry where the equation of
motion for the nonmetricity scalar is not trivially identity. From the analysis
of dynamics we... | http://arxiv.org/abs/2304.04219v2 |
Generative AI systems (ChatGPT, DALL-E, etc) are expanding into multiple
areas of our lives, from art Rombach et al. [2021] to mental health Rob Morris
and Kareem Kouddous [2022]; their rapidly growing societal impact opens new
opportunities, but also raises ethical concerns. The emerging field of AI
alignment aims to ... | http://arxiv.org/abs/2304.13765v3 |
Free-space quantum communication in daylight relies crucially on spatial
filtering. The optimal filter configuration, however, depends on ever-changing
link conditions. To this end, we developed an adjustable spatial filter that
can be used to change the system field of view on the fly. We demonstrate its
use in quantu... | http://arxiv.org/abs/2303.09942v1 |
Fine-grained information on translation errors is helpful for the translation
evaluation community. Existing approaches can not synchronously consider error
position and type, failing to integrate the error information of both. In this
paper, we propose Fine-Grained Translation Error Detection (FG-TED) task,
aiming at ... | http://arxiv.org/abs/2302.08975v1 |
Consider $\left(M,g\right)$ as an $m$-dimensional compact connected
Riemannian manifold without boundary. In this paper, we investigate the first
eigenvalue $\lambda_{1,p,q}$ of the $\left(p,q\right)$-Laplacian system on $M$.
Also, in the case of $p,q >n$ we will show that for arbitrary large
$\lambda_{1,p,q}$ there ex... | http://arxiv.org/abs/2308.12976v1 |
We show that a negative Einstein manifold admitting a proper isometric action
of a connected unimodular Lie group with compact, possibly singular, orbit
space splits isometrically as a product of a symmetric space and a compact
negative Einstein manifold. The proof involves the theory of polar actions,
Lie-theoretic ar... | http://arxiv.org/abs/2307.13235v1 |
In order to help scholars understand and follow a research topic, significant
research has been devoted to creating systems that help scholars discover
relevant papers and authors. Recent approaches have shown the usefulness of
highlighting relevant authors while scholars engage in paper discovery.
However, these syste... | http://arxiv.org/abs/2302.06780v1 |
We propose a mechanism that couples matter fields to three-dimensional
quantum gravity, which can be used for theories with a positive or negative
cosmological constant. Our proposal is rooted in the Chern-Simons formulation
of three-dimensional gravity and makes use of the Wilson spool, a collection of
Wilson loops wi... | http://arxiv.org/abs/2304.02668v1 |
Although there is a significant development in 3D Multi-view Multi-person
Tracking (3D MM-Tracking), current 3D MM-Tracking frameworks are designed
separately for footprint and pose tracking. Specifically, frameworks designed
for footprint tracking cannot be utilized in 3D pose tracking, because they
directly obtain 3D... | http://arxiv.org/abs/2302.03820v1 |
Over the last few decades, both heat and broadband sound reduction have
become increasingly significant as a result of concerns about the environment
and noise pollution. In order to address this challenge, we provide a finite
element analysis study of an acoustic metamaterial panel consisting of a unit
cell made of tw... | http://arxiv.org/abs/2310.05098v1 |
A new approach to quantum theory is proposed in this paper. The basis is
taken to be theoretical variables, variables that may be accessible or
inaccessible, i.e., it may be possible or impossible for an observer to assign
arbitrarily sharp numerical values to them. In an epistemic process, the
accessible variables are... | http://arxiv.org/abs/2305.06727v10 |
Fairness-aware graph neural networks (GNNs) have gained a surge of attention
as they can reduce the bias of predictions on any demographic group (e.g.,
female) in graph-based applications. Although these methods greatly improve the
algorithmic fairness of GNNs, the fairness can be easily corrupted by carefully
designed... | http://arxiv.org/abs/2310.13822v2 |
We introduce the idea of Centaur Programmer, based on the premise that a
collaborative approach between humans and AI will be more effective than AI
alone, as demonstrated in centaur chess tournaments where mixed teams of humans
and AI beat sole computers. The paper introduces several collaboration models
for programmi... | http://arxiv.org/abs/2304.11172v1 |
The present work presents a stable POD-Galerkin based reduced-order model
(ROM) for two-dimensional Rayleigh-B\'enard convection in a square geometry for
three Rayleigh numbers: $10^4$ (steady state), $3\times 10^5$ (periodic), and
$6 \times 10^6$ (chaotic). Stability is obtained through a particular
(staggered-grid) f... | http://arxiv.org/abs/2307.11422v2 |
Mechanical pressure controls the structural, electric, and magnetic order in
solid state systems, allowing to tailor and improve their physical properties.
A well-established example is ferroelastic ferroelectrics, where the coupling
between pressure and the primary symmetry breaking order parameter enables
hysteretic ... | http://arxiv.org/abs/2304.08423v1 |
Existing approaches in Federated Learning (FL) mainly focus on sending model
parameters or gradients from clients to a server. However, these methods are
plagued by significant inefficiency, privacy, and security concerns. Thanks to
the emerging foundation generative models, we propose a novel federated
learning framew... | http://arxiv.org/abs/2306.16064v2 |
We construct and study branching fractional Brownian motion with Hurst
parameter $H\in(1/2,1)$. The construction relies on a generalization of the
discrete approximation of fractional Brownian motion (Hammond and Sheffield,
Probability Theory and Related Fields, 2013) to power law P\'olya urns indexed
by trees. We show... | http://arxiv.org/abs/2310.04386v3 |
Quantum secret sharing (QSS) allows a dealer to distribute a secret quantum
state among a set of parties so that certain subsets can reconstruct the
secret, while unauthorized subsets obtain no information. While QSS was
introduced over twenty years ago, previous works focused only on existence of
perfectly secure sche... | http://arxiv.org/abs/2305.00356v1 |
For quantum state tomography on rank-$r$ dimension-$d$ states, we show that
$\widetilde{O}(r^{.5}d^{1.5}/\epsilon) \leq \widetilde{O}(d^2/\epsilon)$ copies
suffice for accuracy~$\epsilon$ with respect to (Bures) $\chi^2$-divergence,
and $\widetilde{O}(rd/\epsilon)$ copies suffice for accuracy~$\epsilon$ with
respect to... | http://arxiv.org/abs/2305.18519v2 |
In this paper we formulate and lay the foundations for the K-theoretic
Farrell-Jones Conjecture for the Hecke algebra of totally disconnected groups.
The main result of his paper is the proof that it passes to closed subgroups.
Moreover, we carry out some constructions such as the diagonal tensor product
and prove some... | http://arxiv.org/abs/2306.01518v2 |
The presence of CMB Hemispherical Asymmetry (HPA) challenges the current
understanding of inflationary cosmology which does not generically predict the
parity violation in the primordial correlations. In this paper, we shall review
the recently proposed resolution to this based on a new formulation of
quantizing inflat... | http://arxiv.org/abs/2305.06057v1 |
We study the percolation configuration arising from the random current
representation of the near-critical Ising model on the complete graph. We
compute the scaling limit of the cluster size distribution for an arbitrary set
of sources in the single and the double current measures. As a byproduct, we
compute the tangli... | http://arxiv.org/abs/2310.02087v2 |
Task specific hyperparameter tuning in reservoir computing is an open issue,
and is of particular relevance for hardware implemented reservoirs. We
investigate the influence of directly including externally controllable task
specific timescales on the performance and hyperparameter sensitivity of
reservoir computing ap... | http://arxiv.org/abs/2307.08603v2 |
We present radial velocity measurements of the very bright ($V\sim5.7$)
nearby F star, DMPP-4 (HD 184960). The anomalously low Ca II H&K emission
suggests mass loss from planets orbiting a low activity host star. Periodic
radial velocity variability with $\sim 10$ ms$^{-1}$ amplitude is found to
persist over a $>4$ yea... | http://arxiv.org/abs/2307.07530v2 |
By exploiting the link between time-independent Hamiltonians and
thermalisation, heuristic predictions on the performance of continuous-time
quantum walks for MAX-CUT are made. The resulting predictions depend on the
number of triangles in the underlying MAX-CUT graph. We extend these results to
the time-dependent sett... | http://arxiv.org/abs/2306.10365v2 |
In this paper we are concerned with weighted conditional type(WCT) operators
on Orlicz spaces. We prove that all WCT operators have finite ascent. Also, we
provide some sufficient conditions for WCT operators to have finite descent. As
a consequence we find some decompositions for Orlicz space L. In the sequel we
discu... | http://arxiv.org/abs/2305.09364v1 |
We study linear actions of finite groups in small dimensions, up to
equivariant birationality. | http://arxiv.org/abs/2302.02296v1 |
Along the east coast of India (ECI), local winds are oriented alongshore
during the summer monsoon, favouring coastal upwelling. The East India Coastal
Current (EICC) during this period converges at 17$^{\circ}$N with northward
flow from the south and southward flow from the north. A high-resolution Ocean
general circu... | http://arxiv.org/abs/2306.09634v1 |
The Fractional Fourier Transform (FRT) corresponds to an arbitrary-angle
rotation in the phase space, e.g. the time-frequency (TF) space, and
generalizes the fundamentally important Fourier Transform. FRT applications
range from classical signal processing (e.g. time-correlated noise optimal
filtering) to emerging quan... | http://arxiv.org/abs/2307.01141v2 |
Is it possible to evaluate the moral cognition of complex artificial agents?
In this work, we take a look at one aspect of morality: `doing the right thing
for the right reasons.' We propose a behavior-based analysis of artificial
moral cognition which could also be applied to humans to facilitate
like-for-like compari... | http://arxiv.org/abs/2305.18269v1 |
For a given connected graph $G$, the edge Mostar index $Mo_e(G)$ is defined
as $Mo_e(G)=\sum_{e=uv \in E(G)}|m_u(e|G) - m_v(e|G)|$, where $m_u(e|G)$ and
$m_v(e|G)$ are respectively, the number of edges of $G$ lying closer to vertex
$u$ than to vertex $v$ and the number of edges of $G$ lying closer to vertex
$v$ than to... | http://arxiv.org/abs/2306.02761v2 |
Recently, non-reciprocal two-dimensional unitary scattering networks have
gained considerable interest due to the possibility of obtaining robust edge
wave propagation in the anomalous Floquet phase. Conversely, zero-dimensional
topological states in such networks have been left uncharted. Here, we
demonstrate the exis... | http://arxiv.org/abs/2304.03206v1 |
Split Learning (SL) has emerged as a practical and efficient alternative to
traditional federated learning. While previous attempts to attack SL have often
relied on overly strong assumptions or targeted easily exploitable models, we
seek to develop more capable attacks. We introduce SDAR, a novel attack
framework agai... | http://arxiv.org/abs/2310.10483v5 |
Transformer-based pretrained models like BERT, GPT-2 and T5 have been
finetuned for a large number of natural language processing (NLP) tasks, and
have been shown to be very effective. However, while finetuning, what changes
across layers in these models with respect to pretrained checkpoints is
under-studied. Further,... | http://arxiv.org/abs/2305.14453v2 |
The linear constraint of secret key rate capacity is overcome by the
tiwn-field quantum key distribution (QKD). However, the complex phase-locking
and phase-tracking technique requirements throttle the real-life applications
of twin-field protocol. The asynchronous measurement-device-independent (AMDI)
QKD or called mo... | http://arxiv.org/abs/2304.04569v3 |
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