publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2017-12-22 | Geometric Analysis of Synchronization in Neuronal Networks with Global Inhibition and Coupling Delays | We study synaptically coupled neuronal networks to identify the role of
coupling delays in network's synchronized behaviors. We consider a network of
excitable, relaxation oscillator neurons where two distinct populations, one
excitatory and one inhibitory, are coupled and interact with each other. The
excitatory popul... | 1712.08547v2 |
2017-12-28 | Eikonal Scattering and Asymptotic Superluminality of Massless Higher Spin Fields | We consider scattering of massless higher-spin particles in the eikonal
regime in four dimensions. By demanding the absence of asymptotic
superluminality, corresponding to positivity of the eikonal phase, we place
constraints on the possible cubic couplings which can appear in the theory. The
cubic couplings come in tw... | 1712.10021v2 |
2018-09-07 | Observation of ultra-strong spin-motion coupling for cold atoms in optical microtraps | We realize a mechanical analogue of the Dicke model, achieved by coupling the
spin of individual neutral atoms to their quantized motion in an optical
trapping potential. The atomic spin states play the role of the electronic
states of the atomic ensemble considered in the Dicke model, and the in-trap
motional states o... | 1809.02488v1 |
2019-09-03 | Stability Analysis of Interface Conditions for Ocean-Atmosphere Coupling | In this paper we analyze the stability of different coupling strategies for
multidomain PDEs that arise in general circulation models used in climate
simulations. We focus on fully coupled ocean-atmosphere models that are needed
to represent and understand the complicated interactions of these two systems,
becoming inc... | 1909.00916v2 |
2020-12-07 | Graphene plasmon-phonon coupled modes at the exceptional point | Properties of graphene plasmons are greatly affected by their coupling to
phonons. While such coupling has been routinely observed in both near-field and
far-field graphene spectroscopy, the interplay between coupling strength and
mode losses, and its exceptional point physics has not been discussed. By
applying a non-... | 2012.03875v1 |
2020-12-10 | Crossover between Strongly-coupled and Weakly-coupled Exciton Superfluids | In fermionic systems, superconductivity and superfluidity are enabled through
the condensation of fermion pairs. The nature of this condensate can be tuned
by varying the pairing strength, with weak coupling yielding a BCS-like
condensate and strong coupling resulting in a BEC-like process. However,
demonstration of th... | 2012.05916v1 |
2020-12-12 | Dilemma in strongly correlated materials: Hund's metal vs relativistic Mott insulator | We point out the generic competition between the Hund's coupling and the
spin-orbit coupling in correlated materials, and this competition leads to an
electronic dilemma between the Hund's metal and the relativistic insulators.
Hund's metals refer to the fate of the would-be insulators where the Hund's
coupling suppres... | 2012.06752v1 |
2020-12-21 | Exciton-phonon coupling strength in single-layer MoSe2 at room temperature | Single-layer transition metal dichalcogenides are at the center of an ever
increasing research effort both in terms of fundamental physics and
applications. Exciton-phonon coupling plays a key role in determining the
(opto)electronic properties of these materials. However, the exciton-phonon
coupling strength has not b... | 2012.11492v1 |
2012-05-12 | Transport on coupled spatial networks | Transport processes on spatial networks are representative of a broad class
of real world systems which, rather than being independent, are typically
interdependent. We propose a measure of utility to capture key features that
arise when such systems are coupled together. The coupling is defined in a way
that is not so... | 1205.2776v2 |
2017-05-03 | From collective oscillation to chimera state in a nonlocally excitable system | Chimera states, which consist of coexisting domains of spatially coherent and
incoherent dynamics, have been widely found in nonlocally coupled oscillatory
systems. We demonstrate for the first time that chimera states can emerge from
excitable systems under nonlocal coupling in which isolated units only allow
for the ... | 1705.01339v1 |
2017-05-18 | Chimera states: Effects of different coupling topologies | Collective behavior among coupled dynamical units can emerge in various forms
as a result of different coupling topologies as well as different types of
coupling functions. Chimera states have recently received ample attention as a
fascinating manifestation of collective behavior, in particular describing a
symmetry br... | 1705.06786v1 |
2017-05-19 | On the coupling time of the heat-bath process for the Fortuin-Kasteleyn random-cluster model | We consider the coupling from the past implementation of the random-cluster
heat-bath process, and study its random running time, or coupling time. We
focus on hypercubic lattices embedded on tori, in dimensions one to three, with
cluster fugacity at least one. We make a number of conjectures regarding the
asymptotic b... | 1705.07189v1 |
2017-05-24 | Dynamics of an ultra-strongly-coupled system interacting with a driven nonlinear resonator | In the ultra-strong coupling regime of a light-matter system, the ground
state exhibits non-trivial entanglement between the atom and photons. For the
purposes of exploring the measurement and control of this ground state, here we
analyze the dynamics of such an ultra-strongly-coupled system interacting with
a driven n... | 1705.08688v2 |
2017-09-07 | Rotational strain in Weyl semimetals: A continuum approach | The coupling of lattice deformations to the low energy electronic excitations
of Dirac matter involve novel types of electron--phonon couplings as the
celebrated elastic gauge fields first analyzed in graphene. In the continuum
low energy approach, lattice deformations coupling to the electronic degrees of
freedom are ... | 1709.02394v2 |
2017-09-29 | The effect on Kerr comb generation in a clockwise and counter-clockwise mode coupled microcavity | We study the impact of inherent mode coupling between clockwise (CW) and
counter-clockwise (CCW) modes on Kerr comb generation in a small
whispering-gallery mode microcavity. Our numerical analysis using a coupled
Lugiato-Lefever equation reveals the range of the coupling strength in which a
soliton pulse can be obtain... | 1709.10226v1 |
2018-03-06 | Refrigeration beyond weak internal coupling | We investigate the performance of a three-spin quantum absorption
refrigerator using a refined open quantum system model valid across all
inter-spin coupling strengths. It describes the transition between previous
approximate models for the weak and the ultrastrong coupling limit, and it
predicts optimal refrigeration ... | 1803.02002v2 |
2018-03-13 | Cross-correlation between photons and phonons in quadratically coupled optomechanical systems | We study photon, phonon statistics and the cross-correlation between photons
and phonons in a quadratically coupled optomechanical system. Photon blockade,
phonon blockade and strongly anticorrelated photons and phonons can be observed
in the same parameter regime with the effective nonlinear coupling between the
optic... | 1803.04671v2 |
2018-03-17 | Two-color electromagnetically induced transparency via modulated coupling between a mechanical resonator and a qubit | We discuss level splitting and sideband transitions induced by a modulated
coupling between a superconducting quantum circuit and a nanomechanical
resonator. First, we show how to achieve an unconventional time-dependent
longitudinal coupling between a flux (transmon) qubit and the resonator.
Considering a sinusoidal m... | 1803.06513v2 |
2018-03-24 | Controllable nonlinearity in a dual-coupling optomechanical system under a weak-coupling regime | Strong quantum nonlinearity gives rise to many interesting quantum effects
and has wide applications in quantum physics. Herewe investigate the quantum
nonlinear effect of an optomechanical system (OMS) consisting of both linear
and quadratic coupling. Interestingly, a controllable optomechanical
nonlinearity is obtain... | 1803.09048v1 |
2018-06-09 | Sparse Bayesian Learning-Based Direction Finding Method With Unknown Mutual Coupling Effect | The imperfect array degrades the direction finding performance. In this
paper, we investigate the direction finding problem in uniform linear array
(ULA) system with unknown mutual coupling effect between antennas. By
exploiting the target sparsity in the spatial domain, sparse Bayesian learning
(SBL)-based model is pr... | 1806.03409v2 |
2018-06-11 | Effects of quark-matter symmetry energy on hadron-quark coexistence in neutron-star matter | We examine the effects of the isovector-vector coupling and
hypercharge-vector coupling in quark matter on hadron-quark coexistence in
neutron-star matter. The relativistic mean field theory with the TM1 parameter
set and an extended TM1 parameter set are used to describe hadronic matter, and
the Nambu-Jona-Lasinio mod... | 1806.03760v2 |
2018-06-21 | Is the Vlasov equation valid for Yukawa plasmas? | We analyze the Vlasov dispersion relation for Yukawa plasmas in three
dimensions for the purpose of identifying coupling parameter domains where the
Vlasov approach is justified and the existence of a well-developed RPA type
collective excitation is allowed. We establish a rigorous lower bound for the
coupling paramete... | 1806.08431v1 |
2018-06-23 | Coupling Quantum Emitters in WSe2 Monolayers to a Metal-Insulator-Metal Waveguide | Coupling single photon emitters to surface plasmons provides a versatile
ground for on chip quantum photonics. However, achieving good coupling
efficiency requires precise alignment of both the position and dipole
orientation of the emitter relative to the plasmonic mode. We demonstrate
coupling of single emitters in t... | 1806.08973v2 |
2018-07-04 | Quantum correlations in two-level atomic system over Herring-Flicker coupling | We study the thermal quantum correlations in tripartite atomic system under
the existence of Herring-Flicker (HF) coupling among the atoms. We explore two
topologically distinct configurations of three coupled two-level atoms, viz.,
loop and line, differing in their coupling pattern. Further, the systems having
asymmet... | 1807.01805v4 |
2018-07-12 | Investigation of a Multiple-Timescale Turbulence-Transport Coupling Method in the Presence of Random Fluctuations | One route to improved predictive modeling of magnetically confined fusion
reactors is to couple transport solvers with direct numerical simulations (DNS)
of turbulence, rather than with surrogate models. An additional challenge
presented by coupling directly with DNS is that the inherent fluctuations in
the turbulence,... | 1807.04779v1 |
2018-07-13 | Quansinormal modes of static and spherically symmetric black holes with the derivative coupling | We investigate the quasinormal modes of a class of static and spherically
symmetric black holes with the derivative coupling. The derivative coupling has
rarely been paid attention to the study of black hole quasinormal modes.
Specifically, we study the effect of derivative coupling on the quasinormal
modes for four ki... | 1807.05024v2 |
2018-07-17 | Effects of spin-orbit coupling on the optical response of a material | We investigate the effects of spin-orbit coupling on the optical response of
materials. In particular, we study the effects of the commutator between the
spin-orbit coupling part of the potential and the position operator on the
optical matrix elements. Using a formalism that separates a fullyrelativistic
Kleinman-Byla... | 1807.06669v1 |
2018-07-25 | Strong microwave photon-magnon coupling in multiresonant dielectric antennas (Perspective) | Achieving quantum-level control over electromagnetic waves, magnetisation
dynamics, vibrations and heat is invaluable for many practical application and
possible by exploiting the strong radiation-matter coupling. Most of the modern
strong microwave photon-magnon coupling developments rely on the integration of
metal-b... | 1807.09827v1 |
2018-07-31 | Ultrastrong coupling between light and matter | Ultrastrong coupling between light and matter has, in the past decade,
transitioned from theoretical idea to experimental reality. It is a new regime
of quantum light-matter interaction, going beyond weak and strong coupling to
make the coupling strength comparable to the transition frequencies in the
system. The achie... | 1807.11636v1 |
2018-12-07 | Dual $Z_2$ Lattice Gauge Theory of the 3D Ising Model with both Nearest- and Next-Nearest-Neighbor Couplings | It is known that the normal three-dimensional (3D) Ising model on a cubic
lattice is dual to the Wegner's 3D $Z_2$ lattice gauge theory. Here we find an
unusual $Z_2$ lattice gauge theory which is dual to the 3D Ising model with not
only nearest-neighbor (nn) coupling, but also next-nearest-neighbor (nnn)
coupling. Our... | 1812.02938v1 |
2019-01-01 | Normal-mode splitting of four-level atom-cavity system under collective strong coupling | We investigate the transmission spectrum of an optical cavity coupled with
four-level atoms. Multiple normal-mode splitting peaks of the strongly coupled
atom-cavity system are obtained as single cavity mode couples three separated
atomic transitions simultaneously. We employ a confocal optical cavity and an
ensemble o... | 1901.00127v1 |
2019-01-17 | Hawking radiation for scalar fields by Einstein-Gauss-Bonnet-de Sitter black holes | We study the greybody factor and power spectra of Hawking radiation for the
minimally or nonminimally coupled scalar field with exact numerical method in
spherically symmetric Einstein-Gauss-Bonnet-de Sitter black hole spacetime. The
effects of scalar coupling constant, angular momentum number of scalar,
spacetime dime... | 1901.05749v1 |
2019-01-21 | Non-collinear coupling across RuCo and RuFe alloys | Spintronic applications, which rely on spin torques for operation, would
greatly benefit from a non-collinear alignment between magnetizations of
adjacent ferromagnetic layers for maximum performance and reliability. We
demonstrate that such an alignment can be created and controlled by coupling
two ferromagnetic layer... | 1901.07055v1 |
2019-01-29 | U(1)' coupling constant at low energies from heterotic orbifolds | Additional Abelian gauge interactions are generic to string
compactifications. In heterotic string models, gauge coupling unification of
such forces and other gauge interactions is natural due to their common origin.
In this letter we study systematically the 1-loop running of the coupling
constants in effective vacua ... | 1901.10102v2 |
2019-01-30 | Analytical Approach to Study the Impacts of Mutual Coupling on Transmission Lines Protection Systems | While there are numerous literatures that have addressed the impact of mutual
coupling on the reliability and security of protection schemes and have
provided possible mitigation solutions, there has not been adequate research
and documentation presenting a comprehensive analytical approach to 1) estimate
the magnitude... | 1901.10675v1 |
2019-03-05 | On the Global Synchronization of Pulse-coupled Oscillators Interacting on Chain and Directed Tree Graphs | Driven by increased applications in biological networks and wireless sensor
networks, synchronization of pulse-coupled oscillators (PCOs) has gained
increased popularity. However, most existing results address the local
synchronization of PCOs with initial phases constrained in a half cycle, and
results on global synch... | 1903.01651v3 |
2019-04-30 | Dynamics of strongly coupled disordered dissipative spin-boson systems | Spin-boson Hamiltonians are an effective description for numerous quantum
many-body systems such as atoms coupled to cavity modes, quantum
electrodynamics in circuits and trapped ion systems. While reaching the limit
of strong coupling is possible in current experiments, the understanding of the
physics in this paramet... | 1904.13181v1 |
2019-11-18 | Photoluminescence spectroscopy of hybridized exciton-polariton coupling in silicon nanodisks with nonradiative anapole radiations | Semiconductor nanoparticles and nanostructures in the strong coupling regime
exhibit an intriguing energy scale in the optical frequencies, which is
specified by the Rabi splitting between the upper and lower exciton-polariton
states. Technically, exciton-polaritons are part-light, part-matter
quasiparticles that arise... | 1911.07740v1 |
2019-11-25 | Strongly correlated Fermions strongly coupled to light | Strong quantum correlations in matter are responsible for some of the most
extraordinary properties of material, from magnetism to high-temperature
superconductivity, but their integration in quantum devices requires a strong,
coherent coupling with photons, which still represents a formidable technical
challenge in so... | 1911.11151v2 |
2019-12-03 | Nanoscale Tantalum Layer Controlling the Magnetic Coupling between Two Ferromagnetic Electrodes via Insulator of a Magnetic Tunnel Junction | Ability to tailor the nature of the magnetic coupling between two
ferromagnetic electrodes can enable the realization of new spintronics device
systems. This paper discusses our finding that deposition of an ultrathin
tantalum (Ta) on the NiFe top electrode reversed the nature of
inter-ferromagnetic electrode coupling.... | 1912.01331v1 |
2019-12-04 | Improving the Spatial Resolution of Silicon Pixel Detectors through Sub-pixel Cross-coupling | We present a concept to improve the spatial resolution of silicon
pixel-detectors via the implementation of a sub-pixel cross-coupling, which
introduces directional charge sharing between pixels. The charge-collection
electrode is segmented into sub-pixels and each sub-pixel is coupled to the
closest sub-pixel of the n... | 1912.01902v3 |
2019-12-11 | Single-photon cooling in microwave magneto-mechanics | Cavity optomechanics, where photons are coupled to mechanical motion,
provides the tools to control mechanical motion near the fundamental quantum
limits. Reaching single-photon strong coupling would allow to prepare the
mechanical resonator in non-Gaussian quantum states. Preparing massive
mechanical resonators in suc... | 1912.05489v2 |
2019-12-20 | First-order and continuous quantum phase transitions in the anisotropic quantum Rabi-Stark model | Various quantum phase transitions in the anisotropic Rabi-Stark model with
both the nonlinear Stark coupling and the linear dipole coupling between a
two-level system and a single-mode cavity are studied in this work. The
first-order quantum phase transitions are detected by the level crossing of the
ground-state and t... | 1912.10042v2 |
2016-03-02 | T-dual RR couplings on D-branes from S-matrix elements | Using the linear T-dual ward identity associated with the NSNS gauge
transformations, some RR couplings on D$_p$-branes have been found at order
$O(\alpha'^2)$. We examine the $C^{(p-1)}$ couplings with the S-matrix elements
of one RR, one graviton and one antisymmetric B-field vertex operators. We find
the consistency... | 1603.00678v2 |
2016-03-18 | Entanglement Entropy of the N=4 SYM spin chain | We present a detailed study of the Entanglement Entropy (EE) of excited
states in all closed rank one subsectors of N=4 SYM, namely SU(2), SU(1|1) and
SL(2). Exploiting the techniques of the Coordinate and the Algebraic Bethe
Ansatz we obtain the EE for spin chains with up to seven magnons, at leading
order in the coup... | 1603.05929v2 |
2016-10-07 | The Role of Interaction in the Pairing of Two Spin-orbit Coupled Fermions | We investigate the role of a repulsive s-wave interaction in the two-body
problem in the presence of spin orbit couplings, motivated by current interests
in exploring exotic superfluid phases in spin-orbit coupled Fermi gases. For
weak spin orbit coupling where the density of states is not significantly
altered, we ana... | 1610.02927v2 |
2016-10-17 | Coherent Atom-Phonon Interaction through Mode Field Coupling in Hybrid Optomechanical Systems | We propose a novel type of optomechanical coupling which enables a tripartite
interaction between a quantum emitter, an optical mode and a macroscopic
mechanical oscillator. The interaction uses a mechanism we term mode field
coupling: mechanical displacement modifies the spatial distribution of the
optical mode field,... | 1610.05153v1 |
2016-10-19 | Boundary Causality vs Hyperbolicity for Spherical Black Holes in Gauss-Bonnet | We explore the constraints boundary causality places on the allowable
Gauss-Bonnet gravitational couplings in asymptotically AdS spaces, specifically
considering spherical black hole solutions. We additionally consider the
hyperbolicity properties of these solutions, positing that
hyperbolicity-violating solutions are ... | 1610.06078v1 |
2016-12-02 | Novel Propagation Model of Degenerate Band Edge Modes Using Dual Non-identical Pair of Coupled Transmission Lines | We present a novel propagation medium using a pair of non-identical coupled
transmission lines. The medium is referred to as `butterfly' structure and is
composed of four coupled transmission lines. These four coupled transmission
lines generate higher-order dispersion modes by coupling the modes supported on
each of t... | 1612.00844v1 |
2017-07-06 | Stability of entrainment of a continuum of coupled oscillators | We examine the design of the entrainment process for an uncountably infinite
collection of coupled phase oscillators that are all subject to the same
periodic driving signal. In the absence of coupling, an appropriately designed
input can result in each oscillator attaining the frequency of the driving
signal, with a p... | 1707.01599v3 |
2017-11-13 | Multiple Couplings and Renormalization Scheme Ambiguities | The ambiguities inherent in renormalization are considered when using
mass-independent renormalization in massless theories that involve two coupling
coupling constants. We review how there is no renormalization scheme in which
the beta-functions can be chosen to vanish beyond a certain order in
perturbation theory, bu... | 1711.04758v4 |
2018-10-05 | Revisiting Electroweak Phase Transition with Varying Yukawa Coupling Constants | We revisited the scenario of electroweak baryogenesis in the presence of
large Yukawa couplings, in which it was found previously that a strongly first
order electroweak phase transition can occur with the Higgs mass at its
observed value of 125 GeV. Given the sensitivity of the running of the Higgs
quartic coupling on... | 1810.02522v1 |
2018-10-15 | Ferromagnetic and Antiferromagnetic Coupling of Spin Molecular Interfaces with High Thermal Stability | We report an advanced organic spin-interface architecture with magnetic
remanence at room temperature, constituted by metal phthalocyanine molecules
magnetically coupled with Co layer(s), mediated by graphene. Fe- and
Cu-phthalocyanines assembled on graphene/Co have identical structural
configurations, but FePc couples... | 1810.06317v1 |
2018-10-31 | Demonstration of resonant inelastic X-ray scattering as a probe of exciton-phonon coupling | Resonant inelastic X-ray scattering (RIXS) is a promising technique for
obtaining electron-phonon coupling constants. However, the ability to extract
these coupling constants throughout the Brillouin zone for crystalline
materials remains limited. To address this need, we developed a Green's
function formalism to captu... | 1810.13405v1 |
2020-06-22 | Partially Information Coupled Duo-Binary Turbo Codes | Partially information coupled turbo codes (PIC-TCs) is a class of spatially
coupled turbo codes that can approach the BEC capacity while keeping the
encoding and decoding architectures of the underlying component codes
unchanged. However, PIC-TCs have significant rate loss compared to its
component rate-1/3 turbo code,... | 2006.11998v1 |
2020-06-30 | Disformal couplings in a $Λ$CDM background cosmology | The coupled quintessence model with disformal couplings is treated here to
mimic the $\Lambda$CDM background. Using this approach, the quintessence
potential does not have to be specified. The model considers a generic fluid
coupled to the quintessence, which is specified to be either dark matter or a
relativistic flui... | 2006.16962v3 |
2020-09-21 | Dynamics of a 2D lattice of van der Pol oscillators with nonlinear repulsive coupling | We describe spatiotemporal patterns in a network of identical van der Pol
oscillators coupled in a two-dimensional geometry. In this study, we show that
the system under study demonstrates a plethora of different spatiotemporal
structures including chimera states when the coupling parameters are varied.
Spiral wave chi... | 2009.09584v1 |
2020-09-24 | Evolution of Spin-Orbital Entanglement with Increasing Ising Spin-Orbit Coupling | Several realistic spin-orbital models for transition metal oxides go beyond
the classical expectations and could be understood only by employing the
quantum entanglement. Experiments on these materials confirm that spin-orbital
entanglement has measurable consequences. Here, we capture the essential
features of spin-or... | 2009.11773v1 |
2021-02-01 | Strong coupling of Fe-Co alloy with ultralow damping to superconducting co-planar waveguide resonators | We report on the strong coupling between a metallic ferromagnetic Fe75Co25
thin film patterned element and a range of superconducting Nb half-wavelength
co-planar waveguide (CPW) resonators. By varying the volume of the ferromagnet
we demonstrate that the coupling rate scales linearly with the square root of
the number... | 2102.01129v1 |
2013-06-10 | A recipe for Hamiltonian of system-environment coupling applicable to ultrastrong light-matter interaction regime | When the light interacts with matters in a lossy cavity, in the standard
cavity quantum electrodynamics, the dissipation of cavity fields is
characterized simply by the strengths of the two couplings: the light-matter
interaction and the system-environment coupling through the cavity mirror.
However, in the ultrastrong... | 1306.2099v3 |
2015-07-07 | Stable and transient multi-cluster oscillation death in nonlocally coupled networks | In a network of nonlocally coupled Stuart-Landau oscillators with
symmetry-breaking coupling, we study numerically, and explain analytically, a
family of inhomogeneous steady states (oscillation death). They exhibit
multi-cluster patterns, depending on the cluster distribution prescribed by the
initial conditions. Besi... | 1507.01918v2 |
2015-07-13 | Radiative corrections to the Triple Higgs Coupling in the Inert Higgs Doublet Model | We investigate the implication of the recent discovery of a Higgs-like
particle in the first phase of the LHC Run 1 on the Inert Higgs Doublet Model
(IHDM). The determination of the Higgs couplings to SM particles and its
intrinsic properties will get improved during the new LHC Run 2 starting this
year. The new LHC Ru... | 1507.03630v1 |
2015-07-30 | Spectral effects of dispersive mode coupling in driven mesoscopic systems | Nanomechanical and other mesoscopic vibrational systems typically have
several nonlinearly coupled modes with different frequencies and with long
lifetime. We consider the power spectrum of one of these modes. Thermal
fluctuations of the modes nonlinearly coupled to it lead to fluctuations of the
mode frequency and thu... | 1507.08683v1 |
2015-12-07 | The modified indeterminate couple stress model: Why Yang et al.'s arguments motivating a symmetric couple stress tensor contain a gap and why the couple stress tensor may be chosen symmetric nevertheless | We show that the reasoning in favor of a symmetric couple stress tensor in
Yang et al.'s introduction of the modified couple stress theory contains a gap,
but we present a reasonable physical hypothesis, implying that the couple
stress tensor is traceless and may be symmetric anyway. To this aim, the origin
of couple s... | 1512.02053v2 |
2016-09-07 | The allostery landscape: quantifying thermodynamic couplings in biomolecular systems | Allostery plays a fundament role in most biological processes. However,
little theory is available to describe it outside of two-state models. Here we
use a statistical mechanical approach to show that the allosteric coupling
between two collective variables is not a single number, but instead a
two-dimensional thermod... | 1609.02059v1 |
2016-09-10 | The polaron paradigm: a dual coupling effective band model | Non-diagonal couplings to a bosonic bath completely change polaronic
dynamics, from the usual diagonally-coupled paradigm of smoothly-varying
properties. We study, using analytic and numerical methods, a model having both
diagonal Holstein and non-diagonal Su-Schrieffer-Heeger (SSH) couplings. The
critical coupling fou... | 1609.03096v1 |
2016-09-11 | Spin-Orbit Coupling Induced Spin Squeezing in Three-Component Bose Gases | We observe spin squeezing in three-component Bose gases where all three
hyperfine states are coupled by synthetic spin-orbit coupling. This phenomenon
is a direct consequence of spin-orbit coupling, as can be seen clearly from an
effective spin Hamiltonian. By solving this effective model analytically with
the aid of a... | 1609.03141v1 |
2016-09-14 | Universal Distribution of Would-be Topological Zero Modes in Coupled Chiral Systems | We consider two quenched, chiral ensembles which are coupled in such a way
that a combined chiral symmetry is preserved. The coupling also links the
topology of the two systems such that the number of exact zero modes in the
coupled system equals the sum of the number of zero modes in the two uncoupled
systems counted ... | 1609.04252v2 |
2016-09-27 | Novel phases in strongly coupled four-fermion theories | We study a lattice model comprising four massless reduced staggered fermions
in four dimensions coupled through an $SU(4)$-invariant four-fermion
interaction. We present both theoretical arguments and numerical evidence that
no bilinear fermion condensates are present for any value of the four-fermi
coupling, in contra... | 1609.08541v3 |
2016-09-30 | Event-triggered stabilization of coupled dynamical systems with fast Markovian switching | In this paper, stability of linearly coupled dynamical systems with feedback
pinning is studied. Event-triggered rules are employed on both diffusion
coupling and feedback pinning to reduce the updating load of the coupled
system. Here, both the coupling matrix and the set of pinned-nodes vary with
time are induced by ... | 1609.09605v1 |
2016-10-31 | Photon echo in exciton-plasmon nanomaterials: a time-dependent signature of strong coupling | We investigate the dynamics of photon echo exhibited by exciton-plasmon
systems under strong coupling conditions. Using a self-consistent model based
on coupled Maxwell-Bloch equations we investigate femtosecond time dynamics of
ensembles of interacting molecules optically coupled to surface plasmon
supporting material... | 1611.00053v2 |
2016-11-14 | Generalized Analytical Solutions and Synchronization Dynamics of Coupled Simple Nonlinear Electronic Circuits | In this paper we present a generalized analytical solution to the generalized
state equations of coupled second-order non-autonomous circuit systems. The
analytical solutions thus obtained are used to study the synchronization
dynamics of two different types of circuit systems, differing only by their
constituting nonl... | 1611.04289v1 |
2016-11-15 | Constraints on generalized non-standard $tbW$ couplings | General non-standard $tbW$ couplings are studied as model independently as
possible based on the effective Lagrangian consisting of the dimension-6
operators, which is an extension of the standard-model Lagrangian. The
$tbW$-interaction Lagrangian in this framework includes four kinds of
couplings, which could be compl... | 1611.04679v1 |
2016-11-16 | Ferromagnetic order induced on graphene by Ni/Co proximity effects | We build a tight-binding Hamiltonian describing Co/Ni over graphene,
contemplating ATOP (a Co/Ni atom on top of each Carbon atom of one graphene
sublattice) and HCP (one Co/Ni atom per Graphene plaquette) configurations. For
the ATOP configuration the orbitals involved, for the Co/Ni, are the
$d_{z^2-r^2}$ which most s... | 1611.05464v1 |
2016-11-30 | Integrating out resonances in strongly-coupled electroweak scenarios | Accepting that there is a mass gap above the electroweak scale, the
Electroweak Effective Theory (EWET) is an appropriate tool to describe this
situation. Since the EWET couplings contain information on the unknown
high-energy dynamics, we consider a generic strongly-coupled scenario of
electroweak symmetry breaking, w... | 1611.10295v1 |
2017-04-02 | A quasinonlocal coupling method for nonlocal and local diffusion models | In this paper, we extend the idea of "geometric reconstruction" to couple a
nonlocal diffusion model directly with the classical local diffusion in one
dimensional space. This new coupling framework removes interfacial
inconsistency, ensures the flux balance, and satisfies energy conservation as
well as the maximum pri... | 1704.00348v2 |
2018-01-16 | Harmonically trapped attractive and repulsive spin-orbit and Rabi coupled Bose-Einstein condensates | Numerically we investigate the ground state of effective one-dimensional
spin-orbit (SO) and Rabi coupled two pseudo-spinor Bose-Einstein condensates
(BECs) under the effect of harmonic traps. For both signs of the interaction,
density profiles of SO and Rabi coupled BECs in harmonic potentials, which
simulate a real e... | 1801.05321v1 |
2018-01-26 | Strong indirect coupling between graphene-based mechanical resonators via a phonon cavity | Mechanical resonators are promising systems for storing and manipulating
information. To transfer information between mechanical modes, either direct
coupling or an interface between these modes is needed. In previous works,
strong coupling between different modes in a single mechanical resonator and
direct interaction... | 1801.08752v1 |
2018-08-13 | Strong coupling of a single ion to an optical cavity | Strong coupling between an atom and an electromagnetic resonator is an
important condition in cavity quantum electrodynamics (QED). While strong
coupling in various physical systems has been achieved so far, it remained
elusive for single atomic ions. In this paper we demonstrate for the first time
the coupling of a si... | 1808.04031v1 |
2018-08-30 | Revisiting Supernova 1987A Limits on Axion-Like-Particles | Using recent supernova models, I revisit the Supernova 1987a constraints on
scalar/pseudoscalar Axion-Like-Particles (ALPs). On the basis of the neutrino
detections, the luminosity of ALPs must be $\lesssim 5\times10^{52}
\,\mathrm{erg}/s$ after the core-bounce, and this bound limits ALPs couplings.
Contrary to the QCD... | 1808.10136v1 |
2019-06-03 | Non-Hermitian phase transition and eigenstate localization induced by asymmetric coupling | We investigate a uniformly coupled non-Hermitian system with asymmetric
coupling amplitude. The asymmetric coupling equals to a symmetric coupling
threaded by an imaginary gauge field. In a closed configuration, the imaginary
gauge field leads to an imaginary magnetic flux, which induces a non-Hermitian
phase transitio... | 1906.00610v1 |
2019-06-24 | Universal mechanism of low-frequency brain rhythm formation through nonlinear coupling of high-frequency spiking-like activity | A universal mechanism of emergence of synchronized low frequency brain wave
field activity is presented as a result of nonlinear coupling with flat
frequency neuronal forcing. The mechanism utilizes a unique dispersion
properties of weakly-evanescent wave--like brain surface modes that are
predicted to exist within a i... | 1906.09716v1 |
2019-07-25 | Squeezing enhanced atom-cavity interaction in coupled cavities with high dissipation rates | The realization of the strong coupling regime is requisite for implementing
quantum information tasks. Here, a method for enhancing the atom-field coupling
in highly dissipative coupled cavities is proposed. By introducing parametric
squeezing into the primary cavity which is only virtually excited under
specific param... | 1907.10849v1 |
2019-10-10 | Probing light Yukawa couplings in Higgs pair production | One of the puzzles of the SM is the large hierarchy between the Yukawa
couplings of different flavours. Yukawa couplings of the first and the second
generation are constrained only very weakly so far. However, one can obtain
large deviations in the Yukawa couplings in several New Physics (NP) models,
such as e.g. model... | 1910.04546v1 |
2019-10-14 | Synchronization in networks of coupled hyperchaotic CO$_2$ lasers | A non-autonomous dynamical system is proposed to study the synchronization in
networks of mutually coupled optically modulated hyperchaotic CO$_2$ lasers. By
the method of master stability function (MSF) it is shown that the stable
synchronous state can be reached for both the ring of diffusively coupled (RDC)
and star... | 1910.06852v2 |
2020-01-03 | Dissipative couplings in cavity magnonics | Cavity Magnonics is an emerging field that studies the strong coupling
between cavity photons and collective spin excitations such as magnons. This
rapidly developing field connects some of the most exciting branches of modern
physics, such as quantum information and quantum optics, with one of the oldest
science on th... | 2001.00978v2 |
2020-01-09 | A Unified Framework for Coupled Tensor Completion | Coupled tensor decomposition reveals the joint data structure by
incorporating priori knowledge that come from the latent coupled factors. The
tensor ring (TR) decomposition is invariant under the permutation of tensors
with different mode properties, which ensures the uniformity of decomposed
factors and mode attribut... | 2001.02810v4 |
2020-01-16 | Single-photon transport in one-dimensional coupled-resonator waveguide with second order nonlinearity coupling to a nanocavity containing a two-level atom and Kerr nonlinearity | We study controllable single photon scattering in a one-dimensional waveguide
coupling with an additional cavity by second order nonlinear materials in a
non-cascading configuration, where the additional cavity is embedded with
two-level atom and filled with Kerr-nonlinear materials. Considering the second
order nonlin... | 2001.05827v1 |
2020-01-30 | Avoidance couplings on non-complete graphs | A coupling of random walkers on the same finite graph, who take turns
sequentially, is said to be an avoidance coupling if the walkers never collide.
Previous studies of these processes have focused almost exclusively on complete
graphs, in particular how many walkers an avoidance coupling can include. For
other graphs... | 2001.11524v2 |
2020-02-02 | Virtual Critical Coupling | Electromagnetic resonators are a versatile platform to harvest, filter and
trap electromagnetic energy, at the basis of many applications from microwaves
to optics. Resonators with a large intrinsic quality factor (Q) are highly
desirable since they can store a large amount of energy, leading to sharp
filtering and low... | 2002.00487v1 |
2020-02-24 | Exceptional coupling in extreme skin-depth waveguides for extremely low waveguide crosstalk | Photonic chips can miniaturize complicate optical systems very tiny and
portable, providing versatile functionalities for many optical applications.
Increasing the photonic chip integration density is highly desired as it
provides more functionalities, low cost, and lower power consumption. However,
photonic chip integ... | 2002.10579v1 |
2020-03-02 | Split-Gate Cavity Coupler for Silicon Circuit Quantum Electrodynamics | Coherent charge-photon and spin-photon coupling has recently been achieved in
silicon double quantum dots (DQD). Here we demonstrate a versatile split-gate
cavity-coupler that allows more than one DQD to be coupled to the same
microwave cavity. Measurements of the cavity transmission as a function of
level detuning yie... | 2003.01088v1 |
2020-04-09 | Coupling between waveguides and microresonators: the local approach | Coupling between optical microresonators and waveguides is a critical
characteristic of resonant photonic devices with complex behavior that is not
well understood. When the characteristic variation length of the microresonator
modes is much larger than the waveguide width, local coupling parameters emerge
that are ind... | 2004.04661v3 |
2020-04-13 | Moment map for coupled equations of Kähler forms and curvature | In this paper we introduce two new systems of equations in K\"ahler geometry:
The coupled p equation and the generalized coupled cscK equation. We motivate
the equations from the moment map pictures, prove the uniqueness of solutions
and find out the obstructions to the solutions for the second equation. We also
point ... | 2004.06023v6 |
2020-04-16 | Matter coupling in Minimal Massive 3D Gravity and spinor-matter interactions in exterior algebra formalism | In this work, by employing the exterior algebra formalism, we study the
matter coupling in Minimal Massive 3D Gravity (MMG) by first considering that
the matter Lagrangian is connection-independent and then considering that the
matter coupling is connection-dependent. The matter coupling in MMG has been
previously inve... | 2004.07476v3 |
2020-04-18 | Switchable next-nearest-neighbor coupling for controlled two-qubit operations | In a superconducting quantum processor with nearest neighbor coupling, the
dispersive interaction between adjacent qubits can result in an effective
next-nearest-neighbor coupling whose strength depends on the state of the
intermediary qubit. Here, we theoretically explore the possibility of
engineering this next-neare... | 2004.08639v2 |
2020-04-28 | A new signature for strong light-matter coupling using spectroscopic ellipsometry | Light-matter interactions can occur when an ensemble of molecular resonators
is placed in a confined electromagnetic field. In the strong coupling regime
the rapid exchange of energy between the molecules and the electromagnetic
field results in the emergence of hybrid light-matter states called polaritons.
Multiple cr... | 2004.13434v2 |
2020-04-29 | Light-mediated strong coupling between a mechanical oscillator and atomic spins one meter apart | Engineering strong interactions between quantum systems is essential for many
phenomena of quantum physics and technology. Typically, strong coupling relies
on short-range forces or on placing the systems in high-quality electromagnetic
resonators, restricting the range of the coupling to small distances. We use a
free... | 2004.14424v1 |
2020-04-30 | Potential-driven Inflation with Disformal Coupling to Gravity | In this paper, we investigate the potential-driven inflation models with a
disformal coupling to Einstein Gravity, to find out the effects of such a
coupling on these models. We consider a simple coupling form which introduces
only one parameter, and three inflation models, namely the chaotic inflation,
the Higgs infla... | 2004.14712v1 |
2020-05-11 | Tunable coupling of two mechanical resonators by a graphene membrane | Coupled nanomechanical resonators are interesting for both fundamental
studies and practical applications as they offer rich and tunable oscillation
dynamics. At present, the mechanical coupling in such systems is often mediated
by a fixed geometry, such as a joint clamping point of the resonators or a
displacement-dep... | 2005.05358v2 |
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