publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
|---|---|---|---|
2000-06-09 | A Consistent Treatment of Strong Coupling in Disordered Superconducting Films | We develop a consistent treatment of disorder effects in strong coupling
superconductors. We use two different approaches, starting either from above or
below the transition temperature, and show their equivalence. The normal state
approach is a natural extension of a recently developed non-perturbative
resummation tec... | 0006160v1 |
2012-05-01 | Entangling homogeneously broadened matter qubits in the weak-coupling cavity-QED regime | In distributed quantum information processing, flying photons entangle matter
qubits confined in cavities. However, when a matter qubit is homogeneously
broadened, the strong-coupling regime of cavity QED is typically required,
which is hard to realize in actual experimental setups. Here, we show that a
high-fidelity e... | 1205.0060v1 |
2012-05-21 | Single Top Quark Production at DØ | We present new measurements of the single top quark production cross section
in \ppbar collisions at $\sqrt{s} = 1.96 TeV$ using data corresponding to 5.4
\ifb of integrated luminosity collected by the {\dzero} detector at the
Fermilab Tevatron collider. The large mass of the top quark, close to the
electroweak symmetr... | 1205.4501v1 |
2017-05-29 | Multiscale simulation on shearing transitions of thin-film lubrication with multi-layer molecules | Shearing transitions of multi-layer molecularly thin-film lubrication systems
in variations of the film-substrate coupling strength and the load are studied
by using a multiscale method. Three kinds of the interlayer slips found in
decreasing the coupling strength are in qualitative agreement with experimental
results.... | 1705.10008v1 |
2017-09-06 | No nonminimally coupled massless scalar hair for spherically symmetric neutral reflecting stars | It has recently been proved that horizonless compact stars with reflecting
boundary conditions {\it cannot} support spatially regular matter
configurations made of minimally coupled scalar fields, vector fields, and
tensor fields. In the present paper we extend this intriguing no-hair property
to the physically interes... | 1709.01933v1 |
2018-03-05 | Dynamics of a system of coupled inverted pendula with vertical forcing | Dynamical stabilization of an inverted pendulum through vertical movement of
the pivot is a well-known counterintuitive phenomenon in classical mechanics.
This system is also known as Kapitza pendulum and the stability can be
explained with the aid of effective potential. We explore the effect of many
body interaction ... | 1803.01643v1 |
2018-03-16 | Exchange-correlation functionals of i-DFT for asymmetrically coupled leads | A recently proposed density functional approach for steady-state transport
through nanoscale systems (called i-DFT) is used to investigate junctions which
are asymmetrically coupled to the leads and biased with asymmetric voltage
drops. In the latter case, the system can simply be transformed to a physically
equivalent... | 1803.06307v1 |
2018-03-24 | Ground state properties of Ising chain with random monomer-dimer couplings | We study analytically the one-dimensional Ising model with a random binary
distribution of ferromagnetic and antiferromagnetic exchange couplings at zero
temperature. We introduce correlations in the disorder by assigning a dimer of
one type of coupling with probability $x$, and a monomer of the other type with
probabi... | 1803.09069v1 |
2018-03-25 | Enhanced photon-phonon coupling via dimerization in one-dimensional optomechanical crystals | We show that dimerization of an optomechanical crystal lattice, which leads
to folding of the band diagram, can couple flexural mechanical modes to optical
fields within the unit cell via radiation pressure. When compared to currently
realized crystals, a substantial improvement in the coupling between photons
and phon... | 1803.09324v1 |
2018-06-06 | Detection of emitter-resonator coupling strength in quantum Rabi model via an auxiliary resonator | In this paper, we propose a theoretical scheme to detect the
emitter-resonator coupling strength in the ultra-strong coupling regime in the
quantum Rabi model via introducing an auxiliary resonator. We demonstrate the
total system as a two-mode Rabi model and obtain the ground state by the
transformed rotating wave app... | 1806.01971v2 |
2018-07-17 | Nonlinear coupling of flow harmonics in heavy-ion collisions | Anisotropic flow coefficients beyond triangular flow receive important
contributions from lower-order harmonics through nonlinear coupling. We present
a theoretical framework which allows one to quantify the contribution induced
by such nonlinear couplings to any flow harmonic of any order. We show the
effectiveness of... | 1807.06382v1 |
2018-12-03 | Phase transition in a Rabi coupled two-component Bose-Einstein condensate | This paper deals with the study of the phase transition of the wave functions
of a segregated two-component Bose-Einstein condensate under Rabi coupling.
This yields a system of two coupled ODE's where the Rabi coupling is linear in
the other wave function and acts against segregation. We prove estimates on the
asympto... | 1812.00618v1 |
2018-12-11 | Corrections to the Higgs Mode Masses in Superfluid 3He | Superfluid 3He has a rich spectrum of collective modes with both massive and
massless excitations. The masses of these modes can be precisely measured using
acoustic spectroscopy and fit to theoretical models. Prior comparisons of the
experimental results with theory did not include strong-coupling effects beyond
the w... | 1812.04545v2 |
2018-12-12 | Polaron-induced band renormalization due to linear and quadratic electron-phonon coupling | We present a novel approach to electron-lattice interaction beyond the
linear-coupling regime. Based on the solution of a Holstein-Peierls-type model,
we derive explicit analytical expressions for the eigenvalue spectrum of the
Hamiltonian, resulting in a narrowing of bands as a function of temperature.
Our approach en... | 1812.04793v1 |
2018-12-15 | Eta-nucleon and eta-prime-nucleon coupling constants in QCD and the role of gluons | Coupling constants of $\eta$ and $\eta^{\prime}$ mesons with nucleons have
been calculated using the method of QCD sum rules. Starting from
vacuum-to-meson correlation function of interpolating fields of two nucleons,
its matrix element with respect to nucleon spinors has been considered.
Coupling constants at the phys... | 1812.06275v2 |
2018-12-21 | Quantifying coherence of chimera states in coupled chaotic systems | Chimera states in coupled oscillator systems present both spatially coherent
and incoherent domains. The number and size of these domains depend on many
factors like the system parameters and initial conditions. Systematic
investigations of these dependences require a quantification of the degree of
coherence present i... | 1812.09306v1 |
2018-12-24 | Motion Blur removal via Coupled Autoencoder | In this paper a joint optimization technique has been proposed for coupled
autoencoder which learns the autoencoder weights and coupling map (between
source and target) simultaneously. The technique is applicable to any transfer
learning problem. In this work, we propose a new formulation that recasts
deblurring as a t... | 1812.09888v1 |
2019-02-18 | Scalable quantum computer with superconducting circuits in the ultrastrong coupling regime | So far, superconducting quantum computers have certain constraints on qubit
connectivity, such as nearest-neighbor couplings. To overcome this limitation,
we propose a scalable architecture to simultaneously connect several pairs of
distant qubits via a dispersively coupled quantum bus. The building-block of
the bus is... | 1902.06569v2 |
2019-03-01 | The vanishing discount problem for monotone systems of Hamilton-Jacobi equations. Part 1: linear coupling | We establish a convergence theorem for the vanishing discount problem for a
weakly coupled system of Hamilton-Jacobi equations. The crucial step is the
introduction of Mather measures and their relatives for the system, which we
call respectively viscosity Mather and Green-Poisson measures. This is done by
the convex d... | 1903.00244v2 |
2019-03-04 | Continuous ground-state degeneracy of classical dipoles on regular lattices | Dipolar interactions are crucial in the modeling of many complex magnetic
systems, such as the pyrochlores and artificial spin systems. Remarkably, many
classical dipolar coupled spin systems exhibit a continuous ground-state
degeneracy, which is unexpected as the Hamiltonian does not possess a
continuous symmetry. In ... | 1903.01160v2 |
2019-03-05 | Phonon sidebands of color centers in hexagonal boron nitride | Low temperature photoluminescence spectra of a color center in hexagonal
boron nitride are analyzed. The acoustic phonon sideband can be described by a
deformation coupling proportional to strain to a phonon bath that is
effectively two dimensional. The optical phonon band is described by Frohlich
coupling to the LO-br... | 1903.01751v1 |
2019-03-09 | Coupled Decorated Membrane Resonators with Large Willis Coupling | We report the experimental studies on an acoustic scatterer consisting of a
pair of coupled decorated membrane resonators (DMRs) that exhibits near extreme
contrast in reflection asymmetry and strong Willis coupling coefficient with
amplitude of 2.5 and polarizability cross term of 1.1 x 10-8 ms2. The design is
based o... | 1903.03743v2 |
2019-04-12 | The coupling effect of Lipschitz regularization in deep neural networks | We investigate robustness of deep feed-forward neural networks when input
data are subject to random uncertainties. More specifically, we consider
regularization of the network by its Lipschitz constant and emphasize its role.
We highlight the fact that this regularization is not only a way to control the
magnitude of ... | 1904.06253v1 |
2019-04-12 | Spatially Coupled LDPC Codes with Non-uniform Coupling for Improved Decoding Speed | We consider spatially coupled low-density parity-check codes with finite
smoothing parameters. A finite smoothing parameter is important for designing
practical codes that are decoded using low-complexity windowed decoders. By
optimizing the amount of coupling between spatial positions, we show that we
can construct co... | 1904.07026v2 |
2019-08-15 | Chaotic inflation with four-form couplings | We consider chaotic inflation models with a pseudo-scalar field containing
the general couplings to the four-form flux. The four-form mixing with the
pseudo-scalar field induces a quadratic potential for inflaton while the
coexisting four-form mixing with graviton generates a non-minimal gravity
coupling for inflaton. ... | 1908.05475v2 |
2019-08-27 | On the Charge Dependence of the Pion-Nucleon Coupling Constant and Nucleon-Nucleon Low-Energy Scattering Parameters | The simple model describing charge independence and charge symmetry breaking
of the pion-nucleon coupling constant is proposed. The model, which has simple
physical meaning and foundation, suggests directly proportional dependence of
the pion-nucleon coupling constants on the masses of interacting nucleons and
pions. C... | 1908.10124v1 |
2019-11-28 | The dynamics of entropy uncertainty for qutrit system under the random telegraph noise | We study the dynamics of quantum memory assist entropy uncertainty for qutrit
system coupled to an environment modeled by random matrices. The results show
that the effect of relative coupling strength on entropy uncertainty is
opposite in Markov region and non-Markov region, and the influence of a common
environment a... | 1911.12681v1 |
2019-12-09 | Double-$Q$ Chiral Stripe in the $d$-$p$ Model with Strong Spin-Charge Coupling | We investigate the stability of multiple-$Q$ spiral states in $d$-$p$
electron systems with the strong spin-charge coupling. By using variational
calculations on a square lattice, we find that the double-$Q$ state with the
scalar chirality density wave, which has been studied in the weak spin-charge
coupling regime, be... | 1912.03906v1 |
2019-12-23 | Higher-derivative couplings in string theory: five-point contact terms | We compute the tree-level $H^2R^3$ couplings of type II strings and provide
some basic tests of the couplings by considering both K3 and Calabi-Yau
threefold compactifications. Curiously, additional kinematical structures show
up at tree level that are not present in the one-loop couplings. This has
interesting implica... | 1912.10974v3 |
2015-08-06 | Entanglement Dynamics of Molecular Exciton States in Coupled Quantum Dots | We theoretically model the electronic dynamics of a coupled quantum dot pair
in a static electric field. We then investigate the possibility of
polarization-entangled photon emission from the radiative cascade of the
molecular biexciton state. Through numerical simulations, we analyze the
dependence of entanglement fid... | 1508.01298v2 |
2015-08-11 | A critical look at methods for calculating charge transfer couplings fast and accurately | We present here a short and subjective review of methods for calculating
charge transfer couplings. Although we mostly focus on Density Functional
Theory, we discuss a small subset of semiempirical methods as well as the
adiabatic-to-diabatic transformation methods typically coupled with
wavefunction-based electronic s... | 1508.02735v1 |
2015-08-18 | Present status of coupled-channels calculations for heavy-ion subbarrier fusion reactions | The coupled-channels method has been a standard tool in analyzing heavy-ion
fusion reactions at energies around the Coulomb barrier. We investigate three
simplifications usually adopted in the coupled-channels calculations. These are
i) the exclusion of non-collective excitations, ii) the assumption of
coordinate indep... | 1508.04222v1 |
2016-03-06 | Increasing coupling of probabilistic cellular automata | We give a necessary and sufficient condition for the existence of an
increasing coupling of $N$ ($N \geq 2$) synchronous dynamics on $S^{\mathbb
Z^d}$(PCA). Increasing means the coupling preserves stochastic ordering. We
first present our main construction theorem in the case where $S$ is totally
ordered, applications ... | 1603.01885v1 |
2016-03-09 | Coupling vs decoupling approaches for PDE/ODE systems modeling intercellular signaling | We consider PDE/ODE systems for the simulation of intercellular signaling in
multicellular environments. The intracellular processes for each cell described
here by ODEs determine the long-time dynamics, but the PDE part dominates the
solving effort. Thus, it is not clear if commonly used decoupling methods can
outperf... | 1603.02744v1 |
2016-03-22 | Emergence of coupling-induced oscillations and broken symmetries in heterogeneously driven nonlinear reaction networks | Many natural systems including the brain comprise coupled non-uniformly
stimulated elements. In this paper we show that heterogeneously driven networks
of excitatory-inhibitory units exhibit striking collective phenomena, including
spontaneous oscillations upon coupling. On varying the coupling strength a
novel transit... | 1603.06734v1 |
2016-03-28 | Dynamics of a population of oscillatory and excitable elements | We analyze a variant of a model proposed by Kuramoto, Shinomoto, and
Sakaguchi for a large population of coupled oscillatory and excitable elements.
Using the Ott-Antonsen ansatz, we reduce the behavior of the population to a
two-dimensional dynamical system with three parameters. We present the
stability diagram and c... | 1603.08803v1 |
2016-10-20 | Coupling in the Heisenberg group and its applications to gradient estimates | We construct a non-Markovian coupling for hypoelliptic diffusions which are
Brownian motions in the three-dimensional Heisenberg group. We then derive
properties of this coupling such as estimates on the coupling rate, and upper
and lower bounds on the total variation distance between the laws of the
Brownian motions. ... | 1610.06430v3 |
2016-10-25 | Coherent Coupling of Remote Spin Ensembles via a Cavity Bus | We report coherent coupling between two macroscopically separated
nitrogen-vacancy electron spin ensembles in a cavity quantum electrodynamics
system. The coherent interaction between the distant ensembles is directly
detected in the cavity transmission spectrum by observing bright and dark
collective multiensemble sta... | 1610.07890v1 |
2016-12-07 | Symmetry-Breaking Transition and Spectral Singularity in Coupled $\mathcal{PT}$-Symmetric Quantum Potentials | We study the scattering properties of $N$ identical one-dimensional localized
$\mathcal{PT}$-symmetric potentials, connected in series as well as in
parallel. We derive a general transfer matrix formalism for parallel coupled
quantum scatterers, and apply that theory to demonstrate that the spectral
singularities and $... | 1612.02469v1 |
2016-12-19 | Generalising the coupling between spacetime and matter | We explore the idea that the coupling between matter and spacetime is more
complex than the one originally envisioned by Einstein. We propose that such
coupling takes the form of a new fundamental tensor in the Einstein field
equations. We then show that the introduction of this tensor can account for
dark phenomenolog... | 1612.06207v1 |
2016-12-20 | $E_6$ Yukawa couplings in F-theory as D-brane instanton effects | In a weak coupling limit the neighborhood of $E_6$ Yukawa points in $SU(5)$
GUT F-theory models is described by a non-resolvable orientifold of the
conifold. We explicitly show, first directly in IIB and then via a mirror
symmetry argument, that in this limit the $E_6$ Yukawa coupling is better
described as coming from... | 1612.06874v1 |
2017-07-07 | A QCD sum rules calculation of the $η_c D^* D$ and $η_c D_s^* D_s$ form factors and strong coupling constants | We use the QCD sum rules for the three point correlation functions to compute
the strong coupling constants of the meson vertices $\eta_c D^* D$ and $\eta_c
D_s^* D_s$. We consider perturbative and non-perturbative contributions,
working up to dimension five on the OPE. The vertices were studied considering
that each o... | 1707.02330v1 |
2017-07-21 | Semiclassical gravity with a nonminimally coupled scalar field | Semiclassical approximation to the Wheeler-DeWitt equation which corresponds
to gravity with a minimally coupled scalar field has been performed. To the
leading order, vacuum Einstein's equation along with the functional Schrodinger
equation for the matter field, propagating in the background of classical
curved space ... | 1707.06930v1 |
2017-11-04 | Intermittent behaviors in weakly coupled map lattices | In this paper, we study intermittent behaviors of coupled piecewise-expanding
map lattices with two nodes and a weak coupling. We show that the successive
phase transition between ordered and disordered phases occurs for almost every
orbit. That is, we prove $\liminf_{n\rightarrow \infty}| x_1(n)-x_2(n)|=0$ and
$\limsu... | 1711.01457v1 |
2017-11-14 | Vortex dipole precession in a Fermi superfluid with Rashba spin-orbit coupling | We present a closed-form expression for the time dynamics of a balanced Fermi
superfluid with s-wave pairing and Rashba spin-orbit (SO) coupling. Solving the
associated self-consistency conditions for an initial number density given by a
Gaussian and an initial gap containing a vortex dipole, we show that Rashba SO
cou... | 1711.04970v1 |
2017-11-17 | Reconstruction of a random phase dynamics network from observations | We consider networks of coupled phase oscillators of different complexity:
Kuramoto-Daido-type networks, generalized Winfree networks, and hypernetworks
with triple interactions. For these setups an inverse problem of reconstruction
of the network connections and of the coupling function from the observations
of the ph... | 1711.06453v1 |
2017-11-27 | Coupled Kähler-Ricci solitons on toric Fano manifolds | We prove a necessary and sufficient condition in terms of the barycenters of
a collection of polytopes for existence of coupled K\"ahler-Einstein metrics on
toric Fano manifolds. This confirms the toric case of a coupled version of the
Yau-Tian-Donaldson conjecture. We also obtain a necessary and sufficient
condition f... | 1711.09881v2 |
2017-11-28 | Conformal inflation with chameleon coupling | We investigate the possibility that the inflaton, in particular in conformal
inflation models, is also a chameleon, i.e. that it couples to the energy
density of some heavy non-relativistic matter present during inflation. We find
new and interesting attractor behaviours, either prolonging inflation, or
changing the ob... | 1711.10408v3 |
2018-10-02 | Controlling synchronization in coupled area-preserving maps using stickiness | Unidirectionally coupled area-preserving maps with a mixed phase space may
show identical synchronization in the sticky neighborhood of the regular
islands. We use this fact to devise numerical procedures to control (delay and
expedite) the process of synchronization in two standard maps coupled under the
Pecora-Carrol... | 1810.01364v2 |
2018-10-29 | Quark meson coupling model with $su(3)$ symmetry within the Bogoliubov independent quark model of the nucleon | We generalize the Bogoliubov quark-meson coupling model to also include
hyperons. The hyperon-$\sigma$-meson couplings are fixed by the model and the
hyperon-$\omega$-meson couplings are fitted to the hypreon potentials in
symmetric nuclear matter. The present model predicts neutron stars with masses
above 2$M_\odot$ a... | 1810.12191v1 |
2019-05-10 | Bound-State Band Reconstruction and Resonance in Spin-1/2 Bose Gas with 1D Spin-Orbit Coupling | In this work, we study two-body bound states in two-component Bose gas with a
one-dimensional (1D) spin-orbit coupling (SOC) induced by Raman lasers. The
finite Raman coupling strength generates coupling among three spin channels,
resulting in the reconstruction of three bound-state bands. In addition,
multiple resonan... | 1905.03979v1 |
2019-05-20 | Stabilization of two strongly coupled hyperbolic equations in exterior domains | In this paper we study the behavior of the total energy and the $L^2$-norm of
solutions of two coupled hyperbolic equations by velocities in exterior
domains. Only one of the two equations is directly damped by a localized
damping term. We show that, when the damping set contains the coupling one and
the coupling term ... | 1905.08370v1 |
2019-05-31 | Nonlinear phase coupling functions: a numerical study | Phase reduction is a general tool widely used to describe forced and
interacting self-sustained oscillators. Here we explore the phase coupling
functions beyond the usual first-order approximation in the strength of the
force. Taking the periodically forced Stuart-Landau oscillator as the
paradigmatic model, we determi... | 1905.13631v1 |
2020-09-12 | Search for the anomalous $WWγ$ couplings through the process $e^-e^+\,\rightarrow\,ν_e\barν_eγ$ at ILC with unpolarized and polarize beams | We investigate the anomalous $W^+W^-\gamma$ couplings through the process
$e^-e^+\,\rightarrow\,\nu_e\bar{\nu}_e\gamma$ for unpolarized and polarized
electron (positron) beams at the International Linear Collider. We give the
95$\%$ Confidence Level limits on the anomalous couplings with and without the
systematic unce... | 2009.05848v2 |
2021-02-16 | Variational theory combining number-projected BCS and coupled-cluster doubles | The ground state pairing correlations in finite fermionic systems are
described with a high degree of accuracy within a variational approach based on
a combined coupled-cluster and particle-number-projected BCS ansatz. The
flexibility of this symmetry-preserving wavefunction enables a unified picture
valid from weak to... | 2102.08233v1 |
2013-06-03 | The role of the Rashba coupling in spin current of monolayer gapped graphene | In the current work we have investigated the influence of the Rashba
spin-orbit coupling on spin-current of a single layer gapped graphene. It was
shown that the Rashba coupling has a considerable role in generation of the
spin-current of vertical spins in mono-layer graphene. The behavior of the
spin-current is determ... | 1306.0611v1 |
2015-07-03 | Unitarity implications of diboson resonance in the TeV region for Higgs physics | We investigate the implications of a putative new resonance in the TeV region
coupled to the weak bosons. By studying perturbative unitarity in longitudinal
WW scattering, we find that a weakly coupled spin-1 resonance, that explains
the ATLAS diboson excesses, is allowed with a SM-like Higgs. On the other hand,
larger... | 1507.00900v1 |
2015-07-16 | Reduction of couplings in the MSSM | We present an application of the reduction of couplings program in the
minimal supersymmetric Standard Model (MSSM). We investigate if a functional
relation between $\alpha_1$ and $\alpha_2$ gauge couplings can be realized
which is Renormalization Group Invariant (RGI). Following the same procedure
for the top and bott... | 1507.04469v1 |
2015-07-18 | Couplings of Brownian Motions of deterministic distance in model spaces of constant curvature | We consider the model space of constant curvature in dimension n and
characterize all co-adapted couplings of Brownian motions on this space for
which the distance between the processes is deterministic. In addition, the
construction of the coupling is explicit for every choice of $\rho$ satisfying
the above hypotheses... | 1507.05202v2 |
2015-07-25 | Holographic Superconductors with the General $RF^2$ type Couplings | We explore the effects of the general non-minimally coupled $RF^2$-type
couplings on the holographic s-wave superconductors numerically in the
Schwarzschild-AdS background. We calculate the condensation and conductivity of
the model for the coupling parameters $a_1$ and $\beta$. We obtain that the
bigger deviations of ... | 1507.07084v3 |
2015-07-28 | Deviation of yukawa coupling and Higgs decay in gauge-Higgs Unification | We study the deviation of yukawa coupling in the gauge-Higgs unification
scenario from the Standard Model one. Applying the obtained results to the tau
and bottom yukawa couplings, we numerically calculate the signal strength of
$gg \to H \to \bar b b, \bar {\tau} \tau$in the gauge-Higgs unification. | 1507.07630v1 |
2015-12-02 | Modeling of processes with anomalous interactions by means of auxiliary fields | The paper presents a method of modeling events with anomalous fermion-boson
couplings by means of an auxiliary vector fields in addition to the SM gauge
field. The method allows to simulate anomalous gauge couplings in different
approaches, keeping only the linear order or higher order contributions of the
anomalous co... | 1512.00826v1 |
2016-09-13 | Effects of Herzberg--Teller vibronic coupling on coherent excitation energy transfer | In this work, we study the effects of non-Condon vibronic coupling on the
quantum coherence of excitation energy transfer, via the exact
dissipaton-equation-of-motion (DEOM) evaluations on excitonic model systems.
Field-triggered excitation energy transfer dynamics and two dimensional
coherent spectroscopy are simulate... | 1609.03685v1 |
2016-09-19 | An entropic gradient structure for Lindblad equations and couplings of quantum systems to macroscopic models | We show that all Lindblad operators (i.e. generators of quantum semigroups)
on a finite-dimensional Hilbert space satisfying the detailed balance condition
with respect to the thermal equilibrium state can be written as a gradient
system with respect to the relative entropy.
We discuss also thermodynamically consiste... | 1609.05765v3 |
2016-09-21 | Mean-field beyond mean-field: the single particle view for moderately to strongly coupled charged fluids | In a counter-ion only charged fluid, Coulomb coupling is quantified by a
single dimensionless parameter. Yet, the theoretical treatment of moderately to
strongly coupled charged fluids is a difficult task, central to the
understanding of a wealth of soft matter problems, including biological
systems. We show that the c... | 1609.06541v1 |
2016-09-28 | Synchronization of coupled noisy oscillators: Coarse-graining from continuous to discrete phases | The theoretical description of synchronization phenomena often relies on
coupled units of continuous time noisy Markov chains with a small number of
states in each unit. It is frequently assumed, either explicitly or implicitly,
that coupled discrete-state noisy Markov units can be used to model
mathematically more com... | 1609.08731v1 |
2016-11-18 | Temperature dependent quantum correlations in three dipolar coupled two-level atoms | We investigate the thermal entanglement characteristics of three
dipole-coupled two-level atoms arranged in two different configurations - in a
line with nearest neighbour coupling and in a closed loop with each atom
interacting with both its neighbours. It is observed that in loop
configuration, any one of the three a... | 1611.07063v1 |
2016-11-24 | On the synchronization of coupled forced negative conductance circuits: A numerical study | In this paper, a numerical study on the complete synchronization phenomenon
exhibited by coupled forced negative conductance circuits is presented. The
nonlinear system exhibiting two types of chaotic attractors is studied for
complete synchronization of the identical chaotic attractors through phase
portraits under on... | 1611.08170v1 |
2017-04-21 | Vortex-hole duality: a unified picture of weak and strong-coupling regimes of bosonic ladders with flux | Two-leg bosonic ladders with flux harbor a remarkable vortex-hole duality
between the weak-coupling vortex lattice superfluids and strong-coupling
charge-density-wave crystals. The strong-coupling crystalline states, which are
realized in the vicinity of $\pi$-flux, are independent of particle statistics,
and are relat... | 1704.06517v1 |
2018-01-01 | Kinetic layers and coupling conditions for nonlinear scalar equations on networks | We consider a kinetic relaxation model and an associated macroscopic scalar
nonlinear hyperbolic equation on a network. Coupling conditions for the
macroscopic equations are derived from the kinetic coupling conditions via an
asymptotic analysis near the nodes of the network. This analysis leads to the
combination of k... | 1801.00457v1 |
2018-08-01 | Long range dynamical coupling between magnetic adatoms mediated by a 2D topological insulator | We study the spin excitation spectra and the dynamical exchange coupling
between iron adatoms on a Bi bilayer nanoribbon. We show that the topological
character of the edge states is preserved in the presence of the magnetic
adatoms. Nevertheless, they couple significantly to the edge spin currents, as
witnessed by the... | 1808.00347v1 |
2018-08-23 | Organic polariton lasing and the weak- to strong-coupling crossover | Following experimental realizations of room temperature polariton lasing with
organic molecules, we present a microscopic model that allows us to explore the
crossover from weak to strong matter-light coupling. We consider a
non-equilibrium Dicke-Holstein model, including both strong coupling to
vibrational modes and s... | 1808.07683v1 |
2018-08-28 | Nonlinear Dynamics of Coupled Axion-Josephson Junction Systems | We study the classical dynamics of an axion field (the signal) that is
coupling into a Josephson junction (the detector) by means of a capacitive
coupling of arbitrary size. Depending on the size of the coupling constant and
the initial conditions, we find a rich phase space structure of this nonlinear
problem. We pres... | 1808.09417v1 |
2019-06-06 | Observation of incoherently coupled dark-bright vector solitons in single-mode fibers | We report experimental observation of incoherently coupled dark-bright vector
solitons in single-mode fibers. Properties of the vector solitons agree well
with those predicted by the respective systems of incoherently coupled
nonlinear Schroedinger equations. To the best of our knowledge, this is the
first experimental... | 1906.02504v1 |
2019-06-20 | Synchronization of linear oscillators coupled through dynamic networks with interior nodes | Synchronization is studied in an array of identical linear oscillators of
arbitrary order, coupled through a dynamic network comprising dissipative
connectors (e.g., dampers) and restorative connectors (e.g., springs). The
coupling network is allowed to contain interior nodes, i.e., those that are not
directly connecte... | 1906.08572v1 |
2019-07-18 | GBDT and explicit solutions for the matrix coupled dispersionless equations (local and nonlocal cases) | We introduce matrix coupled (local and nonlocal) dispersionless equations,
construct wide classes of explicit multipole solutions, give explicit
expressions for the corresponding Darboux and wave matrix valued functions and
consider their asymptotics in some interesting cases. We consider the scalar
cases of coupled, c... | 1907.08258v1 |
2019-07-26 | Time-dependent coupled cluster theory on the Keldysh contour for non-equilibrium systems | We leverage the Keldysh formalism to extend our implementation of finite
temperature coupled cluster theory [\textit{J. Chem. Theory Comput.} 2018,
\textit{14}, 5690-5700] to thermal systems that have been driven out of
equilibrium. The resulting Keldysh coupled cluster theory is discussed in
detail. We describe the im... | 1907.11695v1 |
2019-10-02 | Strong Coupling Thermodynamics of Open Quantum Systems | A general thermodynamic framework is presented for open quantum systems in
fixed contact with a thermal reservoir. The first and second law are obtained
for arbitrary system-reservoir coupling strengths, and including both
factorized and correlated initial conditions. The thermodynamic properties are
adapted to the gen... | 1910.01246v2 |
2019-10-10 | Improved phase locking of laser arrays with nonlinear coupling | An arrangement based on a degenerate cavity laser for forming an array of
non-linearly coupled lasers with an intra-cavity saturable absorber is
presented. More than $30$ lasers were spatially phase locked and temporally
Q-switched. The arrangement with nonlinear coupling was found to be $25$ times
more sensitive to lo... | 1910.04430v1 |
2019-10-24 | Formulation, analysis and computation of an optimization-based local-to-nonlocal coupling method | We present an optimization-based coupling method for local and nonlocal
continuum models. Our approach couches the coupling of the models into a
control problem where the states are the solutions of the nonlocal and local
equations, the objective is to minimize their mismatch on the overlap of the
local and nonlocal pr... | 1910.11214v2 |
2019-10-30 | Scalarization of compact stars in the scalar-Gauss-Bonnet gravity | We study scalarization of horizonless neutral compact reflecting stars. In
our model, the scalar hair can be induced by the coupling of static scalar
fields to the Gauss-Bonnet invariant. We analytically obtain lower bounds on
the coupling parameter. Below the bound, the static scalar hair cannot form.
And above the bo... | 1910.13718v3 |
2020-01-27 | Bidirectional switching assisted by interlayer exchange coupling in asymmetric magnetic tunnel junctions | We study the combined effects of spin transfer torque, voltage modulation of
interlayer exchange coupling and magnetic anisotropy on the switching behavior
of perpendicular magnetic tunnel junctions (p-MTJs). In asymmetric p-MTJs, a
linear-in-voltage dependence of interlayer exchange coupling enables the
effective perp... | 2001.10024v1 |
2020-03-30 | Coupling colloidal quantum dots to gap waveguides | The coupling between single photon emitters and integrated photonic circuits
is an emerging topic relevant for quantum information science and other
nanophotonic applications. We investigate the coupling between a hybrid system
of colloidal quantum dots and propagating gap modes of a silicon nitride
waveguide system. W... | 2003.13823v1 |
2020-03-30 | A kinetic traffic network model and its macroscopic limit: diverging lanes | In this paper we propose coupling conditions for a kinetic two velocity model
for vehicular traffic for junctions with diverging lanes. We consider cases
with and without directional preferences and present corresponding kinetic
coupling conditions. From this kinetic network model coupling conditions for a
macroscopic ... | 2003.14254v1 |
2020-03-31 | Spurious Resonances in Coupled Domain-Boundary Variational Formulations of Transmission Problems in Electromagnetism and Acoustics | We develop a framework shedding light on common features of coupled
variational formulations arising in electromagnetic scattering and acoustics.
We show that spurious resonances haunting coupled domain-boundary formulations
based on direct boundary integral equations of the first kind originate from
the formal structu... | 2003.14357v3 |
2020-04-07 | FEM-BEM mortar coupling for the Helmholtz problem in three dimensions | We present a FEM-BEM coupling strategy for time-harmonic acoustic scattering
in media with variable sound speed. The coupling is realized with the aid of a
mortar variable that is an impedance trace on the coupling boundary. The
resulting sesquilinear form is shown to satisfy a Garding inequality.
Quasi-optimal converg... | 2004.03523v1 |
2020-04-10 | Green's functions perspective on nonequilibrium thermodynamics of open quantum systems strongly coupled to baths | We give nonequilibrium Green's function (NEGF) perspective on thermodynamics
formulations for open quantum systems strongly coupled to baths. Scattering
approach implying thermodynamic consideration of a super-system (system plus
baths) weakly coupled to external super-baths is compared with consideration of
thermodyna... | 2004.05175v1 |
2020-07-15 | Harmonic synchronization under all three types of coupling: position, velocity, and acceleration | Synchronization of identical harmonic oscillators interconnected via
position, velocity, and acceleration couplings is studied. How to construct a
complex Laplacian matrix representing the overall coupling is presented. It is
shown that the oscillators asymptotically synchronize if and only if this
matrix has a single ... | 2007.07546v1 |
2020-07-15 | Type-II fractons from coupled spin chains and layers | We describe a construction of topological orders from coupled lower
dimensional symmetry-protected topological orders, which is closely related to
gauging a subsystem symmetry. Our construction yields both conventional
topological orders and exotic fracton topological orders of type-I and type-II.
In particular, we fin... | 2007.07894v2 |
2020-08-17 | Coupling Functions in Neuroscience | The interactions play one of the central roles in the brain mediating various
processes and functions. They are particularly important for the brain as a
complex system that has many different functions from the same structural
connectivity. When studying such neural interactions the coupling functions are
very suitabl... | 2008.07612v1 |
2020-10-09 | Transition time estimation for $δ$-function coupling in two state problem: An analytically solvable model | We propose a simple method to calculate transition time in a two-state
scattering problem, where two constant potentials are coupled by a delta
function potential $V_{12}=V_{21}=k_0 \delta(x)$. The exact analytical
expression for the time of transition $\tau$ is derived. We notice $\tau$
explicitly depends on the secon... | 2010.04497v1 |
2020-11-06 | Wilson loops in circular quiver SCFTs at strong coupling | We study circular BPS Wilson loops in the $\mathcal{N}=2$ superconformal
$n$-node quiver theories at large $N$ and strong 't Hooft coupling by using
localization. We compute the expectation values of Wilson loops in the limit
when the 't Hooft couplings are hierarchically different and when they are
nearly equal. Based... | 2011.03531v3 |
2020-11-12 | Path regularity of coupled McKean-Vlasov FBSDEs | This paper establishes H\"{o}lder time regularity of solutions to coupled
McKean-Vlasov forward-backward stochastic differential equations (MV-FBSDEs).
This is not only of fundamental mathematical interest, but also essential for
their numerical approximations. We show that a solution triple to a MV-FBSDE
with Lipschit... | 2011.06664v1 |
2020-11-23 | Synchronization of oscillators with hyperbolic chaotic phases | Synchronization in a population of oscillators with hyperbolic chaotic phases
is studied for two models. One is based on the Kuramoto dynamics of the phase
oscillators and on the Bernoulli map applied to these phases. This system
possesses an Ott-Antonsen invariant manifold, allowing for a derivation of a
map for the e... | 2011.11310v1 |
2020-11-25 | Cavity-modulated ionization potentials and electron affinities from quantum electrodynamics coupled-cluster theory | Quantum electrodynamics coupled-cluster (QED-CC) theory is used to model
vacuum-field-induced changes to ground-state properties of a series of sodium
halide compounds (NaX, X = F, Cl, Br, I) strongly coupled to an optical cavity.
Ionization potentials (IPs) and electron affinities (EAs) are presented, and it
is demons... | 2011.12768v2 |
2021-01-21 | Polarons in a ferromagnetic spinor Bose-Einstein condensates | We investigate the polarons formed by immersing a spinor impurity in a
ferromagnetic state of $F=1$ spinor Bose-Einstein condensate. The ground state
energies and effective masses of the polarons are calculated in both
weak-coupling regime and strong-coupling regime. In the weakly interacting
regime the second order pe... | 2101.08474v1 |
2021-03-02 | Nonadiabatic effects in attosecond transient absorption spectroscopy | We study effects of nonadiabatic couplings in a model of a diatomic molecule
in the context of attosecond transient absorption spectroscopy. By using a
model system consisting of four diabatic electronic states and with a variable
strength of the diabatic coupling, we can explore attosecond transient
absorption spectra... | 2103.01582v1 |
2021-03-31 | Wormholes without averaging | After averaging over fermion couplings, SYK has a collective field
description that sometimes has "wormhole" solutions. We study the fate of these
wormholes when the couplings are fixed. Working mainly in a simple model, we
find that the wormhole saddles persist, but that new saddles also appear
elsewhere in the integr... | 2103.16754v1 |
2021-04-02 | Plasmon modes of coupled quantum Hall edge channels in the presence of disorder-induced tunneling | Coupled quantum Hall edge channels show intriguing non-trivial modes, for
example, charge and neutral modes at Landau level filling factors 2 and 2/3. We
propose an appropriate and effective model with Coulomb interaction and
disorder-induced tunneling characterized by coupling capacitances and tunneling
conductances, ... | 2104.00839v2 |
2021-04-15 | Multi-objective Herglotz' variational principle and cooperative Hamilton-Jacobi systems | We study a multi-objective variational problem of Herglotz' type with
cooperative linear coupling. We established the associated Euler-Lagrange
equations and the characteristic system for cooperative weakly coupled systems
of Hamilton-Jacobi equations. We also established the relation of the value
functions of this var... | 2104.07546v1 |
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