publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2023-02-07 | Discrete One-dimensional Models for the Electromomentum Coupling | Willis dynamic homogenization theory revealed that the effective linear
momentum of elastic composites is coupled to their effective strain. % This
result, which is partially due to asymmetry at the subwavelength scale, implies
that spatially-uniform but time-varying stress can induce temporal variations
in the macrosc... | 2302.03613v2 |
2023-02-11 | Solvable Dynamics of Coupled High-Dimensional Generalized Limit-Cycle Oscillators | We introduce a new model consisting of globally coupled high-dimensional
generalized limit-cycle oscillators, which explicitly incorporates the role of
amplitude dynamics of individual units in the collective dynamics. In the limit
of weak coupling, our model reduces to the $D$-dimensional Kuramoto phase
model, akin to... | 2302.05603v1 |
2023-02-16 | Quantum work statistics at strong reservoir coupling | Calculating the stochastic work done on a quantum system while strongly
coupled to a reservoir is a formidable task, requiring the calculation of the
full eigenspectrum of the combined system and reservoir. Here we show that this
issue can be circumvented by using a polaron transformation that maps the
system into a ne... | 2302.08395v1 |
2023-02-25 | $\mathcal{PT}-$symmetry and chaos control via dissipative optomechanical coupling | We study a dissipative, mechanically coupled optomechanical system that
accommodates gain and loss. The gain (loss) is engineered by driven a purely
dispersive optomechanical cavity with a blue-detuned (red-detuned)
electromagnetic field. By taking into account the dissipative coupling, the
Exceptional Point (EP), whic... | 2302.13064v2 |
2023-02-27 | The association between Marital Locus of Control and break-up intentions | Understanding couple instability is a topic of social and economic relevance.
This paper investigates how the risk of dissolution relates to efforts to solve
disagreements. We study whether the prevalence of relationship instability in
the past among couples is associated with marital locus of control. This is a
noncog... | 2302.14133v1 |
2023-03-03 | Transport of Coupled Self-propelled Particles with Gaussian Colored Noise | The transport of coupled self-propelled particles with colored noise and
potential is investigated. Large translational motion noise intensity is good
for the transport in $-x$ direction, but large self-correlation time of
translational motion noise will inhibit this transport. For proper value of the
asymmetry paramet... | 2303.01862v1 |
2023-03-19 | Phase-dependent Andreev molecules and superconducting gap closing in coherently coupled Josephson junctions | The Josephson junction (JJ) is an essential element of superconducting (SC)
devices for both fundamental and applied physics. The short-range coherent
coupling of two adjacent JJs forms the Andreev molecule states (AMSs), which
will provide a new ingredient to engineer the SC transport in JJs and control
the Andreev qu... | 2303.10540v1 |
2023-03-27 | Coupled-Cluster Theory Revisited. Part II: Analysis of the single-reference Coupled-Cluster equations | In a series of two articles, we propose a comprehensive mathematical
framework for Coupled-Cluster-type methods. In this second part, we analyze the
nonlinear equations of the single-reference Coupled-Cluster method using
topological degree theory. We establish existence results and qualitative
information about the so... | 2303.15106v1 |
2023-03-28 | On Optimal Synchronization of Diffusively Coupled Heterogeneous Van der Pol Oscillators | This paper proposes a novel method to achieve and preserve synchronization
for a set of connected heterogeneous Van der Pol oscillators. Unlike the
state-of-the-art synchronization methods, in which a large coupling gain is
applied to couple any pair of connected oscillators, the proposed method first
casts the whole s... | 2303.15890v1 |
2023-03-28 | Analysis of ultrafast magnetization switching dynamics in exchange-coupled ferromagnet-ferrimagnet heterostructures | Magnetization switching in ferromagnets has so far been limited to the
current-induced spin-orbit-torque effects. Recent observation of
helicity-independent all-optical magnetization switching in exchange-coupled
ferromagnet ferrimagnet heterostructures expanded the range and applicability
of such ultrafast heat-driven... | 2303.16294v1 |
2023-03-29 | Coupling Sum Rules and Oblique Corrections in Gauge-Higgs Unification | In GUT inspired $SO(5) \times U(1)_X \times SU(3)_C$ gauge-Higgs unification
(GHU) in the Randall-Sundrum warped spacetime, the $W$ and $Z$ couplings of all
4D fermion modes become nontrivial. The $W$ and $Z$ couplings of zero-mode
quarks and leptons slightly deviate from those in the SM, and the couplings
take the mat... | 2303.16418v3 |
2023-03-30 | On the coupling of axion-like particles to the top quark | In this paper we explore the coupling of a light axion-like particle (ALP) to
top quarks. We use high-energy LHC probes, and examine both the direct probe to
this coupling in associated production of a top-pair with an ALP, and the
indirect probe through loop-induced gluon fusion to an ALP leading to top
pairs. Using t... | 2303.17634v3 |
2023-04-12 | Integrating planar circuits with superconducting 3D microwave cavities using tunable low-loss couplers | We design and test a low-loss interface between superconducting 3-dimensional
microwave cavities and 2-dimensional circuits, where the coupling rate is
highly tunable. This interface seamlessly integrates a loop antenna and a
Josephson junction-based coupling element. We demonstrate that the loss added
by connecting th... | 2304.06162v2 |
2023-04-20 | Control the qubit-qubit coupling in the superconducting circuit with double-resonator couplers | We propose a scheme of using two fixed frequency resonator couplers to tune
the coupling strength between two Xmon qubits. The induced indirect qubit-qubit
interactions by two resonators could offset with each other, and the direct
coupling between two qubits are not necessarily for switching off. The small
direct qubi... | 2304.10047v2 |
2023-04-24 | Strong-coupling theory of quantum dot Josephson junctions: role of the residual quasiparticle | We consider an interacting quantum dot strongly coupled to two
superconducting leads in a Josephson junction geometry. By defining
symmetry-adapted superpositions of states from the leads, we formulate an
effective Hamiltonian for the strong-hybridisation regime with a single orbital
directly coupled to the dot and thr... | 2304.12456v3 |
2023-04-27 | A central scheme for coupled hyperbolic systems | A novel numerical scheme to solve coupled systems of conservation laws is
introduced. The scheme is derived based on a relaxation approach and does not
require information on the Lax curves of the coupled systems, which simplifies
the computation of suitable coupling data. The coupling condition for the
underlying rela... | 2304.13946v1 |
2023-05-12 | Synchronization of phase oscillators due to nonlocal coupling mediated by the slow diffusion of a substance | Many systems of physical and biological interest are characterized by
assemblies of phase oscillators whose interaction is mediated by a diffusing
chemical. The coupling effect results from the fact that the local
concentration of the mediating chemical affects both its production and
absorption by each oscillator. Sin... | 2305.07471v2 |
2023-05-13 | Power Allocation for the Base Matrix of Spatially Coupled Sparse Regression Codes | We investigate power allocation for the base matrix of a spatially coupled
sparse regression code (SC-SPARC) for reliable communications over an additive
white Gaussian noise channel. A conventional SC-SPARC allocates power uniformly
to the non-zero entries of its base matrix. Yet, to achieve the channel
capacity with ... | 2305.07865v1 |
2023-05-15 | Maximum Power of Coupled-Qubit Otto Engines | We put forward four schemes of coupled-qubit quantum Otto machine, a
generalization of the single-qubit quantum Otto machine, based on work and heat
transfer between an internal system consisting of a coupled pair of qubits and
an external environment consisting of two heat baths and two work storages. The
four schemes... | 2305.08440v1 |
2023-05-17 | Conduction-radiation coupling between two distant solids interacting in near-field regime | In the classical approach to deal with near-field radiative heat exchanges
between two closely spaced bodies no coupling between the different heat
carriers inside the materials and thermal photons is usually considered. Here
we make an overview of the current state of studies on this coupling between
solids of differe... | 2305.10105v1 |
2023-05-18 | On inverse problems for several coupled PDE systems arising in mathematical biology | In this paper, we propose and study several inverse problems of
identifying/determining unknown coefficients for a class of coupled PDE systems
by measuring the average flux data on part of the underlying boundary. In these
coupled systems, we mainly consider the non-negative solutions of the coupled
equations, which a... | 2305.10770v1 |
2023-05-19 | Duality between amplitude and derivative coupled particle detectors in the limit of large energy gaps | We present a duality between a particle detector model coupled to the
amplitude of a scalar field and coupled to the field's derivative in the limit
of large energy gaps. We show that the results of the models can be mapped to
each other in a one-to-one fashion modulo a rescaling by the detector's gap.
Our analysis is ... | 2305.11949v1 |
2023-05-30 | Dynamical stability in models where dark matter and dark energy are non-minimally coupled to curvature | This work explores the dynamical stability of cosmological models where dark
matter and dark energy can non-minimally couple to spacetime (scalar)
curvature. Two different scenarios are presented here. In the initial case,
only dark matter sector is coupled to curvature in the presence of a
quintessence scalar field. I... | 2305.19062v2 |
2023-06-08 | Non-polaritonic effects in cavity-modified photochemistry | Strong coupling of molecules to vacuum fields has been widely reported to
lead to modified chemical properties such as reaction rates. However, some
recent attempts to reproduce infrared strong coupling results have not been
successful, suggesting that factors other than strong coupling may sometimes be
involved. Here ... | 2306.05506v2 |
2023-06-19 | Enhanced entanglement in multi-bath spin-boson models | The spin-boson model usually considers a spin coupled to a single bosonic
bath. However, some physical situations require coupling of the spin to
multiple environments. For example, spins interacting with phonons in
three-dimensional magnetic materials. Here, we consider a spin coupled
isotropically to three independen... | 2306.11036v2 |
2023-06-20 | Role of coupling delay in oscillatory activity in autonomous networks of excitable neurons with dissipation | We study numerically the effects of time delay in networks of delay-coupled
excitable FitzHugh Nagumo systems with dissipation. The generation of periodic
self-sustained oscillations and its threshold are analyzed depending on the
dissipation of a single neuron, the delay time, and random initial conditions.
The peculi... | 2306.11573v1 |
2023-06-20 | Magnetoelectric fractals, Magnetoelectric parametric resonance and Hopf bifurcation | In the present work, we study the dynamics of a magnetic nanoparticle coupled
through the magnetoelectric coupling to the ferroelectric crystal. The model of
our interest is nonlinear, and we explore the problem under different limits of
weak and strong linearity. By applying two electric fields with different
frequenc... | 2306.13110v1 |
2023-06-27 | Magnetic proximity in a coupled Ferromagnet-Spin glass system | We study the competition between ferromagnetic and spin glass phases using a
system of coupled infinite-range Ising and Sherrington-Kirkpatrick models. We
obtain the replica-symmetric solution for the free energy of this system in
terms of magnetization and Edwards-Anderson order parameters in both
subsystems. Using th... | 2306.15426v1 |
2023-06-28 | Domain formation of modulation instability in spin-orbit-Rabi coupled Gross-Pitaevskii equation with cubic-quintic interactions | The effect of two- and three-body interactions on the modulation instability
(MI) domain formation of a spin-orbit (SO) and Rabi-coupled Bose-Einstein
condensate is studied within a quasi-one-dimensional model. To this aim, we
perform numerical and analytical investigations of the associated dispersion
relations derive... | 2306.16599v1 |
2023-07-02 | Two distinct transitions in a population of coupled oscillators with turnover: desynchronization and stochastic oscillation quenching | Synchronization, which is caused by mutual coupling, and turnover, which is
the replacement of old components with new ones, are observed in various open
systems consisting of many components. Although these phenomena can co-occur,
the interplay of coupling and turnover has been overlooked. Here, we analyze
coupled pha... | 2307.00630v4 |
2023-07-04 | Spatiotemporal coupled-mode equations for arbitrary pulse transformation | Spatiotemporal modulation offers a variety of opportunities for light
manipulations. In this paper, we propose a way towards arbitrary transformation
for pulses sequentially propagating within one waveguide in space via temporal
waveguide coupling. The temporal waveguide coupling operation is achieved by
spatiotemporal... | 2307.01456v1 |
2023-07-12 | Reheating and Leptogenesis after Vector inflation | We study the reheating and leptogenesis in the case of a vector inflaton. We
concentrate on particle production during the phase of oscillating background,
especially gravitational production induced by the presence of non-minimal
coupling imposed by an isotropic and homogeneous Universe. Including processes
involving ... | 2307.06011v2 |
2023-07-12 | Noise-induced transport in the Aubry-André-Harper model | We study quantum transport in a quasiperiodic Aubry-Andr\'e-Harper (AAH)
model induced by the coupling of the system to a Markovian heat bath. We find
that coupling the heat bath locally does not affect transport in the
delocalized and critical phases, while it induces logarithmic transport in the
localized phase. Incr... | 2307.06373v1 |
2023-07-16 | Exploring the Nature of High-Order Cavity Polaritons under the Coupling-Decoupling Transition | Recently, we predicted theoretically that in cavities that support several
longitudinal modes, strong coupling can occur in very different manners,
depending on the system parameters. Distinct longitudinal cavity modes are
either entangled with each other via the material or independently coupled to
the exciton mode. H... | 2307.08037v1 |
2023-07-18 | Distant entanglement via photon hopping in a coupled magnomechanical system | We theoretically propose a scheme to generate distant bipartite entanglement
between various subsystems in coupled magnomechanical systems where both the
microwave cavities are coupled through single photon hopping parameter. Each
cavity also contains a magnon mode and phonon mode and this gives five
excitation modes i... | 2307.09424v1 |
2023-07-22 | Game-Theoretic Robust Reinforcement Learning Handles Temporally-Coupled Perturbations | Deploying reinforcement learning (RL) systems requires robustness to
uncertainty and model misspecification, yet prior robust RL methods typically
only study noise introduced independently across time. However, practical
sources of uncertainty are usually coupled across time. We formally introduce
temporally-coupled pe... | 2307.12062v2 |
2023-07-24 | Localization of matters coupled nonminimally to gravity on scalar thick branes | We are investigating the localization of matter that interacts nonminimally
with gravity within thick braneworld models generated by a scalar bulk. Our
review focuses on two models of scalar thick branes. The natural mechanism is
used to analyze the localization of the fields. Without losing the point of
field localiza... | 2307.12614v4 |
2023-07-27 | Probing an ultralight QCD axion with electromagnetic quadratic interaction | The axion-gluon coupling is the defining feature of the QCD axion. This
feature induces additional and qualitatively different interactions of the
axion with standard model particles -- quadratic couplings. Previously,
hadronic quadratic couplings have been studied and experimental implications
have been explored espec... | 2307.14962v2 |
2023-07-27 | Electrical coupling of superparamagnetic tunnel junctions mediated by spin-transfer-torques | In this work, the effect of electrical coupling on stochastic switching of
two in-plane superparamagnetic tunnel junctions (SMTJs) is studied, using
experimental measurements as well as simulations. The coupling mechanism relies
on the spin-transfer-torque (STT) effect, which enables the manipulation of the
state proba... | 2307.15165v1 |
2023-08-01 | Free-space coupling and characterization of transverse bulk phonon modes in lithium niobate in a quantum acoustic device | Transverse bulk phonons in a multimode integrated quantum acoustic device are
excited and characterized via their free-space coupling to a three-dimensional
(3D) microwave cavity. These bulk acoustic modes are defined by the geometry of
the Y-cut lithium niobate substrate in which they reside and couple to the
cavity e... | 2308.00807v2 |
2023-08-11 | Kerr nonlinearity induced strong spin-magnon coupling | One pillar of quantum magnonics is the exploration of the utilization of the
mediation role of magnons in different platforms to develop quantum
technologies. The efficient coupling between magnons and various quantum
entities is a prerequisite. Here, we propose a scheme to enhance the
spin-magnon coupling by the magno... | 2308.05927v2 |
2023-08-24 | Methods for transverse and longitudinal spin-photon coupling in silicon quantum dots with intrinsic spin-orbit effect | In a full-scale quantum computer with a fault-tolerant architecture, having
scalable, long-range interaction between qubits is expected to be a highly
valuable resource. One promising method of achieving this is through the
light-matter interaction between spins in semiconductors and photons in
superconducting cavities... | 2308.12626v1 |
2023-08-25 | Hybrid coupling rules for leaderless heterogeneous oscillators: uniform global asymptotic and finite-time synchronization | We investigate the engineering scenario where the objective is to synchronize
heterogeneous oscillators in a distributed fashion. The internal dynamics of
each oscillator are general enough to capture their time-varying natural
frequency as well as physical couplings and unknown bounded terms. A
communication layer is ... | 2308.13155v1 |
2023-08-25 | Higher Derivative Sigma Models | We explore the nature of running couplings in the higher derivative linear
and nonlinear sigma models and show that the results in dimensional
regularization for the physical running couplings do not always match the
values quoted in the literature. Heat kernel methods identify divergences
correctly, but not all of the... | 2308.13704v1 |
2023-08-29 | Tunable tunnel coupling in a double quantum antidot with cotunneling via localized state | Controlling tunnel coupling between quantum antidots (QADs) in the quantum
Hall (QH) regime is problematic. We propose and demonstrate a scheme for
tunable tunnel coupling between two QADs by utilizing a cotunneling process via
a localized state as a third QAD. The effective tunnel coupling can be tuned by
changing the... | 2308.14998v1 |
2023-09-05 | Cavity-induced topological edge and corner states | We investigate a two-level system with alternating XX coupling in a photon
cavity. It is mapped to a free boson model equally coupled to a photon, whose
interaction is highly nonlocal. Some intriguing topological phenomena emerge as
a function of the photon coupling. The photon energy level anticrosses the
zero-energy ... | 2309.01927v1 |
2023-09-05 | Signatures and characterization of dominating Kerr nonlinearity between two driven systems with application to a suspended magnetic beam | We consider a model of two harmonically driven damped harmonic oscillators
that are coupled linearly and with a cross-Kerr coupling. We show how to
distinguish this combination of coupling types from the case where a coupling
of optomechanical type is present. This can be useful for the characterization
of various nonl... | 2309.02204v2 |
2023-09-07 | Quantum Nonlinear Effect in Dissipatively Coupled Optomechanical System | A full-quantum approach is used to study quantum nonlinear properties of a
compound Michelson-Sagnac interferometer optomechanical system. The effective
Hamiltonian shows that both dissipative and dispersive couplings possess
imaginary- and real-Kerr nonlinearities. And unexpectedly, the nonlinearities
caused by the di... | 2309.03719v2 |
2023-09-08 | Cosmological simulations of a momentum coupling between dark matter and quintessence | Dark energy is frequently modelled as an additional dynamical scalar field
component in the Universe, referred to as "quintessence", which drives the
late-time acceleration. Furthermore, the quintessence field may be coupled to
dark matter and/or baryons, leading to a fifth force. In this paper we explore
the consequen... | 2309.04530v1 |
2023-09-10 | On the Impact of Mutual Coupling on RIS-Assisted Channel Estimation | Amid the demand for densely integrated elements in techniques such as
holographic reconfigurable intelligent surfaces (RISs), the mutual coupling
effect has gained prominence. By performing a misspecified Cramer-Rao bound
analysis within an electromagnetics-compliant communication model, this letter
offers a quantitati... | 2309.04990v2 |
2023-09-13 | Strong backaction on a mechanical resonator by a few photons | Cavity electromechanical systems, consisting of a mechanical resonator
coupled to an electromagnetic mode, are extensively used for sensing of various
forces and controlling the vibrations of a mechanical mode down to their
quantum limit. In the microwave domain, such devices based on magnetic-flux
coupling have emerge... | 2309.06765v1 |
2023-09-19 | The coupled-cluster self-energy | Coupled-cluster and Green's function theories are highly successful in
treating many-body electron correlation and there has been significant interest
in identifying and leveraging connections between them. Here we present a
diagrammatic definition of the irreducible coupled-cluster self-energy that
directly embeds cou... | 2309.10451v2 |
2023-09-22 | Chaotic motion of scalar particle coupling to Chern-Simons invariant in the stationary axisymmetric Einstein-Maxwell dilaton black hole spacetime | We investigate the motion of a test scalar particle coupling to the
Chern-Simons (CS) invariant in the background of a stationary axisymmetric
black hole in the Einstein-Maxwell-Dilaton-Axion (EMDA) gravity. Comparing with
the case of a Kerr black hole, we observe that the presence of the dilation
parameter makes the C... | 2309.12604v1 |
2023-10-04 | A priori error analysis of multirate time-stepping schemes for two-phase flow problems | We present a priori error estimates for a multirate time-stepping scheme for
coupled differential equations. The discretization is based on Galerkin methods
in time using two different time meshes for two parts of the problem. We aim at
surface coupled multiphysics problems like two-phase flows. Special focus is on
the... | 2310.02620v1 |
2023-10-11 | Tunable non-Fermi liquid phase from coupling to two-level systems | We study a controlled large-$N$ theory of electrons coupled to dynamical
two-level systems (TLSs) via spatially-random interactions. Such a physical
situation arises when electrons scatter off low-energy excitations in a
metallic glass, such as a charge or stripe glass. Our theory is governed by a
non-Gaussian saddle p... | 2310.07768v1 |
2023-10-11 | Coupled Scheme for Linear and Hamilton-Jacobi Equations: Theoretical and Numerical Aspects | We present a comprehensive analysis of the coupled scheme introduced in
[Springer Proceedings in Mathematics \& Statistics, vol 237. Springer, Cham
2018 \cite{S2018}] for linear and Hamilton-Jacobi equations. This method merges
two distinct schemes, each tailored to handle specific solution
characteristics. It offers a... | 2310.07878v1 |
2023-10-12 | Pump Pulse Bandwidth-Activated Nonlinear Phononic Coupling in CdWO$_4$ | To control structure-function relationships in solids with light, we must
harness the shape of the potential energy surface, as expressed in anharmonic
coupling coefficients. We use two-dimensional terahertz (THz) spectroscopy to
identify trilinear coupling between sets of vibrational modes in CdWO$_4$. It
is generally... | 2310.08747v1 |
2023-10-01 | Behaviour of circular chains of nonlinear oscillators with Kuramoto-like local coupling | The conditions under which synchronization is achieved for a one-dimensional
ring of identical phase oscillators with Kuramoto-like local coupling are
studied. The system is approached in the weakly coupled approximation as phase
units. Instead of global couplings, nearest-neighbor interaction is assumed.
Units are pai... | 2310.12165v1 |
2023-11-15 | Chirality-induced emergent spin-orbit coupling in topological atomic lattices | Spin-orbit coupled dynamics are of fundamental interest in both quantum
optical and condensed matter systems alike. In this work, we show that photonic
excitations in pseudospin-1/2 atomic lattices exhibit an emergent spin-orbit
coupling when the geometry is chiral. This spin-orbit coupling arises naturally
from the el... | 2311.09303v1 |
2023-11-17 | Electron-phonon interaction and electronic correlations in transport through electrostatically and tunnel coupled quantum dots | We investigate two equivalent capacitively and tunnel coupled quantum dots,
each coupled to its own pair of leads. Local Holstein type electron-phonon
coupling at the dots is assumed. To study many-body effects we use the finite-U
mean-field slave boson approach. For vanishing interdot interaction, weak e-ph
coupling a... | 2311.10509v1 |
2023-11-22 | Strong Light-Matter Coupling Facilitated Charge Carrier Transport in Cavity Organic Solar Cells | Strong light-matter coupling has shown great potential for modifying the
electro-optical properties of semiconducting materials in recent years. In the
strong coupling regime, excitons and cavity photons form new states named
exciton-polaritons, with their properties a hybrid of each constituent. Herein,
we report stro... | 2311.13235v1 |
2023-11-22 | Numerical investigation of effective nonlinear coefficient model for coupled third harmonic generation | In this paper, the optimal solution of effective nonlinear coefficient of
quasi-phase-matching (QPM) crystals for coupled third harmonic generation
(CTHG) was numerically investigated. The effective nonlinear coefficient of
CTHG was converted to an Ising model for optimizing domain length distributions
of aperiodically... | 2311.13426v2 |
2023-11-28 | Renormalization of the Yukawa and Quartic Couplings in $\mathcal{N} = 1$ Supersymmetric QCD | In this work we perform calculations in order to determine the
renormalization factors and the mixing coefficients of the Yukawa and the
quartic couplings in $\mathcal{N} = 1$ Supersymmetric QCD. The Yukawa couplings
describe the interactions between gluino, quark and squark fields whereas the
quartic couplings describ... | 2311.16710v1 |
2023-12-18 | Massive SLE$_4$, massive CLE$_4$ and the massive planar GFF | We construct a coupling between a massive GFF and a random curve in which the
curve can be interpreted as the level line of the field and has the law of
massive SLE$_4$. This coupling is obtained by reweighting the law of the
standard coupling GFF-SLE$_4$ and our result can be seen as a conditional
version of the path-... | 2312.11180v2 |
2023-12-22 | Non co-adapted couplings of Brownian motions on subRiemannian manifolds | In this article we continue the study of couplings of subelliptic Brownian
motions on the subRiemannian manifolds SU (2) and SL(2, R). Similar to the case
of the Heisenberg group, this subelliptic Brownian motion can be considered as
a Brownian motion on the sphere (resp. the hyperbolic plane) together with its
swept a... | 2312.14512v1 |
2023-12-22 | Extensions of dark KdV equations: nonhomogeneous classifications, bosonizations of fermionic systems and supersymmetric dark systems | Dark equations are defined as some kinds of integrable couplings with some
fields being homogeneously and linearly coupled to others. In this paper, dark
equations are extended in several aspects. Taking the Korteweg-de Vrise (KdV)
equation as an example, the dark KdV systems are extended to nonhomogenous
forms, nonlin... | 2312.14538v1 |
2024-02-02 | Photonic Spin-Orbit Coupling Induced by Deep-Subwavelength Structured Light | We demonstrate both theoretically and experimentally beam-dependent photonic
spin-orbit coupling in a two-wave mixing process described by an equivalent of
the Pauli equation in quantum mechanics. The considered structured light in the
system is comprising a superposition of two orthogonal spin-orbit-coupled
states def... | 2402.01080v1 |
2024-02-02 | The Møller-Plesset Adiabatic Connection at Large Coupling Strengths for Open-shell Systems | We study the adiabatic connection that has as weak-coupling expansion the
M{\o}ller-Plesset perturbation series, generalizing to the open-shell case
previous closed-shell results for the large-coupling limit. We first focus on
the hydrogen atom with fractional spins, providing results along the adiabatic
connection, fr... | 2402.01384v2 |
2024-02-09 | On the Universality of Coupling-based Normalizing Flows | We present a novel theoretical framework for understanding the expressive
power of coupling-based normalizing flows such as RealNVP. Despite their
prevalence in scientific applications, a comprehensive understanding of
coupling flows remains elusive due to their restricted architectures. Existing
theorems fall short as... | 2402.06578v1 |
2024-02-09 | Bosenovae with Quadratically-Coupled Scalars in Quantum Sensing Experiments | Ultralight dark matter (ULDM) particles of mass $m_\phi \lesssim 1~{\rm eV}$
can form boson stars in DM halos. Collapse of boson stars leads to explosive
bosenova emission of copious relativistic ULDM particles. In this work, we
analyze sensitivity of terrestrial and space-based experiments to detect such
relativistic ... | 2402.06736v1 |
2024-02-12 | Inverse source problems for coupled parabolic systems from measurements of one internal component | This paper is devoted to the study of inverse source problems for coupled
systems of heat equations with constant or spatial--dependent coupling terms
and whose internal measurements involve a reduced number of observed states.
The analysis is developed for two kind of systems: the first one consists of
parabolic equat... | 2402.07593v1 |
2024-02-19 | $H_0$ tension as a manifestation of the time evolution of gravity coupling | Using the effective theory of dark energy (EFT) we show that the time
evolution of non minimal gravity coupling can provide a natural explanation to
the apparent Hubble tension. The non minimal coupling induces a modification of
the Einstein frame Friedman equation, which can explain the difference between
low and high... | 2402.11947v1 |
2024-02-21 | Modular forms and hierarchical Yukawa couplings in heterotic Calabi-Yau compactifications | We study the modular symmetry in heterotic string theory on Calabi-Yau
threefolds. In particular, we examine whether moduli-dependent holomorphic
Yukawa couplings are described by modular forms in the context of heterotic
string theory with standard embedding. We find that $SL(2,\mathbb{Z})$ modular
symmetry emerges in... | 2402.13563v1 |
2024-02-22 | Unraveling the origin of antiferromagnetic coupling at YIG/permalloy interface | We investigate the structural and electronic origin of antiferromagnetic
coupling in the Yttrium iron garnet (YIG) and permalloy (Py) bilayer system at
the atomic level. Ferromagnetic Resonance (FMR) reveal unique hybrid modes in
samples prepared with surface ion milling, indicative of antiferromagnetic
exchange coupli... | 2402.14553v2 |
2024-02-23 | Performance Analysis of Systems with Coupled and Decoupled RISs | We analyze and compare different methods for handling the mutual coupling in
RIS-aided communication systems. A new mutual coupling aware algorithm is
derived where the reactance of each element is updated successively with a
closed-form solution. In comparison to existing element-wise methods, this
approach leads to a... | 2402.15423v1 |
2024-02-26 | An NS-NS basis for odd-parity couplings at order $α'^3$ | In this study, we thoroughly investigate the covariant and $B$-field gauge
invariant odd-parity NS-NS couplings at order $\alpha'^3$, while considering
the removal of field redefinitions, Bianchi identities, and total derivative
freedoms. Our comprehensive analysis reveals the existence of 477 independent
couplings. To... | 2402.16496v2 |
2024-03-26 | Hairy black holes in extended Einstein-Maxwell-scalar theories with magnetic charge and kinetic couplings | We study black hole (BH) solutions in extended Einstein-Maxwell-scalar
theories which is classified in a subclass of the $U(1)$ gauge-invariant
scalar-vector-tensor theories. The scalar field is coupled to the vector field,
which has electric and magnetic charges. For the static and spherically
symmetric spacetime, we ... | 2403.17484v1 |
2024-04-10 | Synchronization Conditions for Nonlinear Oscillator Networks | Understanding conditions for the synchronization of a network of
interconnected oscillators is a challenging problem. Typically, only sufficient
conditions are reported for the synchronization problem. Here, we adopted the
Lyapunov-Floquet theory and the Master Stability Function approach in order to
derive the synchro... | 2404.06752v1 |
2001-01-23 | Nonlinear mode coupling in rotating stars and the r-mode instability in neutron stars | We develop the formalism required to study the nonlinear interaction of modes
in rotating Newtonian stars in the weakly nonlinear regime. The formalism
simplifies and extends previous treatments. At linear order, we elucidate and
extend slightly a formalism due to Schutz, show how to decompose a general
motion of a rot... | 0101092v4 |
2003-07-17 | Synchronized clusters in coupled map networks: Self-organized and driven phase synchronization | We study the synchronization of coupled maps on a variety of networks
including regular one and two dimensional networks, scale free networks, small
world networks, tree networks, and random networks. For small coupling
strengths nodes show turbulent behavior but form phase synchronized clusters as
coupling increases. ... | 0307029v3 |
2010-06-14 | Non-Abelian quantum order in spin-orbit-coupled semiconductors: The search for topological Majorana particles in solid state systems | We show that an ordinary semiconducting thin film with spin-orbit coupling
can, under ap- propriate circumstances, be in a quantum topologically ordered
state supporting exotic Majorana excitations which follow non-Abelian
statistics. The key to the quantum topological order is the coexistence of
spin-orbit coupling wi... | 1006.2829v2 |
2011-05-18 | Thermodynamics of lattice QCD with 2 sextet quarks on N_t=8 lattices | We continue our lattice simulations of QCD with 2 flavours of colour-sextet
quarks as a model for conformal or walking technicolor. A 2-loop perturbative
calculation of the $\beta$-function which describes the evolution of this
theory's running coupling constant predicts that it has a second zero at a
finite coupling. ... | 1105.3749v3 |
2012-10-04 | Jet evolution from weak to strong coupling | Recent studies, using the AdS/CFT correspondence, of the radiation produced
by a decaying system or by an accelerated charge in the N=4 supersymmetric
Yang-Mills theory, led to a striking result: the 'supergravity backreaction',
which is supposed to describe the energy density at infinitely strong coupling,
yields exac... | 1210.1534v1 |
2012-11-08 | Momentum Broadening in Weakly Coupled Quark-Gluon Plasma (with a view to finding the quasiparticles within liquid quark-gluon plasma) | We calculate P(k_\perp), the probability distribution for an energetic parton
that propagates for a distance L through a medium without radiating to pick up
transverse momentum k_\perp, for a medium consisting of weakly coupled
quark-gluon plasma. We use full or HTL self-energies in appropriate regimes,
resumming each ... | 1211.1922v2 |
2013-10-03 | Neel to spin-Peierls transition in a quasi-1D Heisenberg model coupled to bond phonons | The zero and finite temperature spin-Peierls transitions in a
quasi-one-dimensional spin-1/2 Heisenberg model coupled to adiabatic bond
phonons is investigated using the Stochastic Series Expansion (SSE) Quantum
Monte Carlo (QMC) method. The quantum phase transition from a gapless Neel
state to a spin-gapped Peierls st... | 1310.0880v1 |
2015-03-23 | Critical Temperature and Tunneling Spectroscopy of Superconductor-Ferromagnet Hybrids with Intrinsic Rashba-Dresselhaus Spin-Orbit Coupling | We investigate theoretically how the proximity effect in
superconductor/ferromagnet hybrid structures with intrinsic spin-orbit coupling
manifests in the density of states and critical temperature. To describe a
general scenario, we allow for both Rashba and Dresselhaus type spin-orbit
coupling. Our results are obtaine... | 1503.06835v2 |
2016-07-22 | Entangling Higgs production associated with a single top and a top-quark pair in the presence of anomalous top-Yukawa coupling | The ATLAS and CMS collaborations observed a mild excess in the associated
Higgs production with a top-quark pair ($t\bar t h$) and reported the signal
strengths of $ \mu_{tth}^{\rm ATLAS}=1.81\pm 0.80$ and $\mu_{tth}^{\rm
CMS}=2.75\pm 0.99 $ based on the data collected at $\sqrt{s}$= 7 and 8 TeV.
Although, at the curre... | 1607.06566v2 |
2018-04-25 | Design of an inductively shunted transmon qubit with tunable transverse and longitudinal coupling | This thesis is set in the framework of superconducting transmon-type qubit
architectures with special focus on two important types of coupling between
qubits and harmonic resonators: transverse and longitudinal coupling. We will
see that longitudinal coupling offers some remarkable advantages with respect
to scalabilit... | 1804.09777v2 |
2010-05-12 | Time dependent couplings in the dark sector: from background evolution to nonlinear structure formation | We present a complete numerical study of cosmological models with a time
dependent coupling between the dark energy component driving the present
accelerated expansion of the Universe and the Cold Dark Matter (CDM) fluid.
Depending on the functional form of the coupling strength, these models show a
range of possible i... | 1005.2188v2 |
2017-06-27 | Efficient injection from large telescopes into single-mode fibres: Enabling the era of ultra-precision astronomy | Photonic technologies offer numerous advantages for astronomical instruments
such as spectrographs and interferometers owing to their small footprints and
diverse range of functionalities. Operating at the diffraction-limit, it is
notoriously difficult to efficiently couple such devices directly with large
telescopes. ... | 1706.08821v2 |
2018-12-22 | Single-crystalline gold nanodisks on WS$_2$ mono- and multilayers: Strong coupling at room temperature | Engineering light-matter interactions up to the strong-coupling regime at
room temperature is one of the cornerstones of modern nanophotonics. Achieving
this goal will enable new platforms for potential applications such as quantum
information processing, quantum light sources and even quantum metrology.
Materials like... | 1812.09495v1 |
2019-03-13 | Effects of memristor-based coupling in the ensemble of FitzHugh-Nagumo elements | In this paper, we study the impact of electrical and memristor-based
couplings on some neuron-like spiking regimes, previously observed in the
ensemble of two identical FitzHugh-Nagumo elements with chemical excitatory
coupling. We demonstrate how increasing strength of these couplings affects on
such stable periodic r... | 1903.05472v1 |
2019-03-17 | Lunar Laser Ranging constraints on nonminimally coupled dark energy and standard sirens | In dark energy models where a scalar field $\phi$ is coupled to the Ricci
scalar $R$ of the form $e^{-2Q (\phi-\phi_0)/M_{\rm pl}}R$, where $Q$ is a
coupling constant, $\phi_0$ is today's value of $\phi$, and $M_{\rm pl}$ is the
reduced Planck mass, we study how the recent Lunar Laser Ranging (LLR)
experiment places co... | 1903.07092v3 |
2016-12-26 | Period spacings in red giants; III. Coupling factors of mixed modes | The power of asteroseismology relies on the capability of global oscillations
to infer the stellar structure. For evolved stars, we benefit from unique
information directly carried out by mixed modes that probe their radiative
cores. This third article of the series devoted to mixed modes in red giants
focuses on their... | 1612.08453v1 |
2019-07-26 | Universal relations for spin-orbit-coupled Fermi gases in two and three dimensions | We present a comprehensive derivation of a set of universal relations for
spin-orbit-coupled Fermi gases in three or two dimension, which follow from the
short-range behavior of the two-body physics. Besides the adiabatic energy
relations, the large-momentum distribution, the grand canonical potential and
pressure rela... | 1907.11433v1 |
2020-02-18 | Capacity-achieving Spatially Coupled Sparse Superposition Codes with AMP Decoding | Sparse superposition codes, also called sparse regression codes (SPARCs), are
a class of codes for efficient communication over the AWGN channel at rates
approaching the channel capacity. In a standard SPARC, codewords are sparse
linear combinations of columns of an i.i.d. Gaussian design matrix, while in a
spatially c... | 2002.07844v3 |
2021-10-29 | Extracting phase coupling functions between collectively oscillating networks directly from time-series data | Many real-world systems are often regarded as weakly coupled limit-cycle
oscillators, in which each oscillator corresponds to a dynamical system with
many degrees of freedom that have collective oscillations. One of the most
practical methods for investigating the synchronization properties of such a
rhythmic system is... | 2110.15598v2 |
2021-12-07 | Study of the projected sensitivity on the anomalous quartic gauge couplings via $Zγγ$ production at the CLIC | Gauge boson self-couplings are completely defined by the non-Abelian gauge
symmetry of the Standard Model (SM). For this reason, a direct search for these
couplings is extremely significant in understanding the gauge structure of the
SM. The possible deviation from the SM predictions of gauge boson
self-couplings would... | 2112.03948v4 |
2022-01-20 | Ubiquitous Coexisting Electron-Mode Couplings in High Temperature Cuprate Superconductors | In conventional superconductors, the electron-phonon coupling plays a
dominant role in pairing the electrons and generating superconductivity. In
high temperature cuprate superconductors, the existence of the electron
coupling with phonons and other boson modes and its role in producing high
temperature superconductivi... | 2201.08108v1 |
2022-06-09 | Non-minimal coupling of scalar and gauge fields with gravity: an entropy current and linearized second law | This work extends the proof of a local version of the linearized second law
involving an entropy current with non-negative divergence by including the
arbitrary non-minimal coupling of scalar and $U(1)$ gauge fields with gravity.
In recent works, the construction of entropy current to prove the linearized
second law re... | 2206.04538v2 |
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