publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2022-11-23 | Identifying unbound strong bunching and the breakdown of the Rotating Wave Approximation in the quantum Rabi model | We use a recently derived gauge-invariant formulation of the problem of a
two-level system coupled to an optical cavity, to explore the transition
between the weak, and the ultra-strong coupling regimes of light-matter
interaction. We explore this transition using the intensity correlations
$g^{(2)}(\tau)$ of the emitt... | 2211.13249v2 |
2022-11-29 | Resonant Mode Coupling in $δ$ Scuti Stars | Delta Scuti ($\delta$ Sct) variables are intermediate mass stars that lie at
the intersection of the main sequence and the instability strip on the
Hertzsprung-Russel diagram. Various lines of evidence indicate that nonlinear
mode interactions shape their oscillation spectra, including the particularly
compelling detec... | 2211.15898v1 |
2022-11-29 | Scaling laws for non-Hermitian skin effect with long-range couplings | Recent years have witnessed a surge of research on the non-Hermitian skin
effect (NHSE) in one-dimensional lattices with finite-range couplings. In this
work, we show that the long-range couplings that decay as $1/l^{\alpha}$ at
distance $l$ can fundamentally modify the behavior of NHSE and the scaling of
quantum entan... | 2211.16565v3 |
2022-11-30 | On the nature of overcharging and charge inversion in electrical double layers | Understanding overcharging and charge inversion is one of the long-standing
challenges in soft matter and biophysics. To study these phenomena, we employ
the modified Gaussian renormalized fluctuation theory, which allows for the
self-consistent accounting of spatially varying ionic strength, as well as the
spatial var... | 2212.00141v3 |
2022-12-02 | From Turing patterns to chimera states in the 2D Brusselator model | The Brusselator has been used as a prototype model for autocatalytic
reactions, and in particular for the Belouzov- Zhabotinsky reaction. When
coupled at the diffusive limit, the Brusselator undergoes a Turing bifurcation
resulting in the formation of classical Turing patterns, such as spots, stripes
and spirals in 2 s... | 2212.01297v1 |
2022-12-03 | Measurement-based quantum thermal machines with feedback control | We investigate coupled-qubit-based thermal machines powered by quantum
measurements and feedback. We consider two different versions of the machine:
1) a quantum Maxwell's demon where the coupled-qubit system is connected to a
detachable single shared bath, and 2) a measurement-assisted refrigerator where
the coupled-q... | 2212.01502v2 |
2022-12-12 | Mitigating disorder-induced zero-energy states in weakly-coupled semiconductor-superconductor hybrid systems | Disorder has appeared as one of the main mechanisms to induce topologically
trivial zero-energy states in superconductor-semiconductor systems, thereby
challenging the detection of topological superconductivity and Majorana bound
states. Here we demonstrate that, for disorder in any part of the system, the
formation of... | 2212.06061v2 |
2022-12-07 | Cyclops states in repulsive Kuramoto networks: the role of higher-order coupling | Repulsive oscillator networks can exhibit multiple cooperative rhythms,
including chimera and cluster splay states. Yet, understanding which rhythm
prevails remains challenging. Here, we address this fundamental question in the
context of Kuramoto-Sakaguchi networks of identical rotators with higher-order
coupling. Thr... | 2212.06758v1 |
2022-12-13 | Symmetry Breaking in an Extended-O(2) Model | Motivated by attempts to quantum simulate lattice models with continuous
Abelian symmetries using discrete approximations, we consider an extended-O(2)
model that differs from the ordinary O(2) model by an explicit symmetry
breaking term. Its coupling allows to smoothly interpolate between the O(2)
model (zero coupling... | 2212.06893v1 |
2022-12-15 | Electric field tuning of magnetic states in single magnetic molecules | Single magnetic molecules may be the smallest functional magnets. An
electric-field controllable spin state of magnetic molecules is of fundamental
importance for applications while its realization remains challenging. To date
the observed spin-electric interaction based on spin-orbit coupling or spin
dipole coupling i... | 2212.08010v1 |
2022-12-19 | NaRuO$_2$: Kitaev-Heisenberg exchange in triangular-lattice setting | Kitaev exchange, a new paradigm in quantum magnetism research, occurs for
90$^{\circ}$ metal-ligand-metal links, $t_{2g}^5$ transition ions, and sizable
spin-orbit coupling. It is being studied in honeycomb compounds but also on
triangular lattices. While for the former it is known by now that the Kitaev
intersite coup... | 2212.09365v2 |
2022-12-22 | Reducing the frequency of the Higgs mode in a helical superconductor coupled to an LC-circuit | We show that the amplitude, or Higgs mode of a superconductor with strong
spin-orbit coupling and an exchange field, couples linearly to the
electromagnetic field. Furthermore, by coupling such a superconductor to an LC
resonator, we demonstrate that the Higgs resonance becomes a regular mode at
frequencies smaller tha... | 2212.11615v1 |
2022-12-26 | Towards chiral polaritons | Coupling between light and material excitations underlies a wide range of
optical phenomena. Polaritons are eigenstates of a coupled system with
hybridized wave function. Owing to their hybrid composition, polaritons exhibit
at the same time properties typical for photonic and electronic excitations,
thus offering new ... | 2212.13090v1 |
2022-12-27 | Control and enhancement of single-molecule electroluminescence through strong light-matter coupling | The energetic positions of molecular electronic states at molecule/electrode
interfaces are crucial factors for determining the transport and optoelectronic
properties of molecular junctions. Strong light--matter coupling offers a
potential for manipulating these factors, enabling to boost in the efficiency
and versati... | 2212.13377v1 |
2022-12-28 | Radiative coupling the easy way: Using transfer coefficients to model series-connected multi-junction solar cells | When the quality of multijunction solar cells becomes sufficiently high,
radiative exchange of photons between cells has to be taken into account to
properly model these devices. In this work it is shown how this radiative
coupling can be accounted for in series connected multi-junction solar cells by
constants called ... | 2212.13920v1 |
2022-12-28 | State Carving in a Chirally-Coupled Atom-Nanophotonic Cavity | Coherent quantum control of multiqubit systems represents one of the
challenging tasks in quantum science and quantum technology. Here we
theoretically investigate the reflectivity spectrum in an atom-nanophotonic
cavity with collective nonreciprocal couplings. In the strong-coupling regime
with a high cooperativity, w... | 2212.13927v3 |
2022-12-29 | Polaritonic Huang-Rhys Factor: Basic Concepts and Quantifying Light-Matter Interaction in Medium | Huang-Rhys (HR) factor, a dimensionless factor that characterizes
electron-phonon coupling, has been extensively employed to investigate material
properties in various fields. In the same spirit, we present a quantity called
polaritonic HR factor to quantitatively describe the effects of (i)
light-matter coupling induc... | 2212.14196v1 |
2023-01-03 | Constraining massless dilaton theory at Solar system scales with the planetary ephemeris INPOP | We expose the phenomenology of the massless dilaton theory in the Solar
system for a non universal quadratic coupling between the scalar field which
represents the dilaton, and the matter. Modified post-Newtonian equations of
motion of an $N$-body system and the light time travel are derived from the
action of the theo... | 2301.01186v1 |
2023-01-05 | Generalized Dicke model and gauge-invariant master equations for two atoms in ultrastrongly-coupled cavity quantum electrodynamics | We study a generalization of the well-known Dicke model, using two dissimilar
atoms in the regime of ultrastrongly coupled cavity quantum electrodynamics.
Our theory uses gauge invariant master equations, which yields consistent
results in either of the standard multipolar and Coulomb gauges, including
system-bath inte... | 2301.02127v2 |
2023-01-05 | Dissipative light-matter coupling and anomalous dispersion in nonideal cavities | We consider the scenario of an emitter embedded in a nonideal cavity. Using
an input-output approach to describe the open system, we show that an effective
dissipative coupling between the emitter and the cavity can emerge because of
their interaction with a common photonic environment. The underlying mechanism
is inde... | 2301.02221v2 |
2023-01-16 | Realignment-free cryogenic macroscopic optical cavity coupled to an optical fiber | We present a cryogenic setup where an optical Fabry-Perot resonator is
coupled to a single-mode optical fiber with coupling efficiency above 90% at mK
temperatures without realignment during cooling down. The setup is prealigned
at room temperature to compensate for the thermal contraction and change of the
refractive ... | 2301.06609v1 |
2023-01-18 | Non-perturbative strong coupling at timelike momenta | We compute the strong coupling constant of Landau gauge QCD in the full
complex momentum plane, both directly and via spectral reconstruction. In
particular, we consider the Taylor coupling given by the product of ghost and
gluon dressing functions. Assuming spectral representations for the latter, we
first show that a... | 2301.07785v2 |
2023-01-24 | Longitudinal coupling between electrically driven spin-qubits and a resonator | At the core of the semiconducting spin qubits success is the ability to
manipulate them electrically, enabled by the spin-orbit interactions. However,
most implementations require external magnetic fields to define the spin qubit,
which in turn activate various charge noise mechanisms. Here we study spin
qubits confine... | 2301.10163v1 |
2023-01-25 | Hybrid quantum system with strong magnetic coupling of a magnetic vortex to a nanomechanical resonator | We present a hybrid quantum system composed of a magnetic vortex and a
nanomechanical resonator. We show that the gyrotropic mode of the vortex can
coherently couple to the quantized mechanical motion of the resonator through
magnetic interaction. Benefiting from the topologically protected properties
and the low dampi... | 2301.10438v1 |
2023-01-31 | Electroluminescence as a probe of strong exciton-plasmon coupling in few-layer WSe2 | The manipulation of coupled quantum excitations is of fundamental importance
in realizing novel photonic and optoelectronic devices. We use
electroluminescence to probe plasmon-exciton coupling in hybrid structures
consisting of a nanoscale plasmonic tunnel junction and few-layer
two-dimensional transition-metal dichal... | 2302.00023v2 |
2023-02-01 | Temperature gradient and asymmetric steady state correlations in dissipatively coupled cascaded optomechanical systems | The interaction between a light mode and a mechanical oscillator via
radiation pressure in optomechanical systems is an excellent platform for a
multitude of applications in quantum technologies. In this work we study the
dynamics of a pair of optomechanical systems interacting dissipatively with a
wave guide in a unid... | 2302.00698v2 |
2023-02-02 | Couplings and attractiveness for general exclusion processes | Attractiveness is a fundamental tool to study interacting particle systems
and the basic coupling construction is a usual route to prove this property, as
for instance in the simple exclusion process. We consider here general
exclusion processes where jump rates from an occupied site to an empty one
depend not only on ... | 2302.00971v1 |
2023-02-03 | Sub-millimeter propagation of antiferromagnetic magnons via magnon-photon coupling | For the realization of magnon-based current-free technologies, referred to as
magnonics, all-optical control of magnons is an important technique for
fundamental research and application. Magnon-polariton is a coupled state of
magnon and photon in a magnetic medium, which is expected to exhibit a
magnon-like controllab... | 2302.01821v1 |
2023-02-06 | Localization of abelian gauge fields with Stueckelberg-like geometrical coupling on $f(T,B)$-thick brane | In the context of $f(T,B)$ modified teleparallel gravity, we investigate the
influence of torsion scalar $T$ and boundary term $B$ on the confinement of
both the gauge vector and Kalb-Ramond fields. Both fields require a suitable
coupling in five-dimensional braneworld scenarios to yield a normalizable zero
mode. We pr... | 2302.02938v2 |
2023-02-07 | Extreme multistability in symmetrically coupled clocks | Extreme multistability (EM) is characterized by the emergence of infinitely
many coexisting attractors or continuous families of stable states in dynamical
systems. EM implies complex and hardly predictable asymptotic dynamical
behavior. We analyse a model for pendulum clocks coupled by springs and
suspended on an osci... | 2302.03423v1 |
2023-02-08 | Low Overhead Quantum Bus with Coupling beyond the Nearest Neighbor via Mediated Effective Capacitance | The design of easy to operate high-fidelity two qubit gates remains an area
of ongoing research. Many of the common schemes require dedicated controls
lines, while others are vulnerable to issues of frequency crowding. Here, we
propose a scheme for coupling a chain of transmons acting as logical qubits via
a quantum bu... | 2302.04284v2 |
2023-02-09 | BCS-BCS crossover between atomic and molecular superfluids in a Bose-Fermi mixture | We theoretically examine a continuity between atomic and molecular Fermi
superfluids in a Bose-Fermi mixture near the Feshbach resonance. Considering a
two-channel model describing the Feshbach resonance between Fermi and Bose
atoms, we have constructed the mean-field framework based on the perturbative
expansion of th... | 2302.04617v2 |
2023-02-12 | Spin-selective strong light-matter coupling in a 2D hole gas-microcavity system | The interplay between time-reversal symmetry breaking and strong light-matter
coupling in 2D gases brings intriguing aspects to polariton physics. This
combination can lead to polarization/spin selective light-matter interaction in
the strong coupling regime. In this work, we report such a selective strong
light-matter... | 2302.06023v1 |
2023-02-19 | Anharmonic electron-phonon coupling in ultrasoft and locally disordered perovskites | Anharmonicity and local disorder (polymorphism) are ubiquitous in perovskite
physics, inducing various phenomena observed in scattering and spectroscopy
experiments. Several of these phenomena still lack interpretation from
first-principles since, hitherto, no approach is available to account for
anharmonicity and diso... | 2302.09625v2 |
2023-02-21 | Beam Energy Dependence of the Linear and Mode-Coupled Flow Harmonics Using the A Multi-Phase Transport Model | In the framework of the A Multi-Phase Transport (AMPT) model, the
multi-particle azimuthal cumulant method is used to calculate the linear and
mode-coupled contributions to the quadrangular flow harmonic ($v_{4}$),
mode-coupled response coefficient as a function of centrality in Au+Au
collisions at $\sqrt{s_{\mathrm{NN... | 2302.10373v1 |
2023-02-22 | Compressing the atomic cloud in a matter-wave stripe soliton | We consider an attractive quasi-one dimensional spin-orbit coupled
Bose-Einstein condensate (SOC BEC) confined in a periodic potential produced by
the combination of linear and nonlinear optical lattices, and study the effects
of squeezing a stripe soliton by varying the inter-atomic interaction in the
nonlinear lattic... | 2302.11626v2 |
2023-03-01 | Independent electrical control of two quantum dots coupled through a photonic-crystal waveguide | Efficient light-matter interaction at the single-photon level is of
fundamental importance in emerging photonic quantum technology. A fundamental
challenge is addressing multiple quantum emitters at once, as intrinsic
inhomogeneities of solid-state platforms require individual tuning of each
emitter. We present the rea... | 2303.00345v2 |
2023-03-01 | Nonminimally-coupled warm Higgs inflation: Metric vs. Palatini Formulations | In this work, we study the non-minimally-coupled Higgs model in the context
of warm inflation scenario on both metric and Palatini approaches. We
particularly consider a dissipation parameter of the form $\Gamma=C_{T}T$ with
$C_{T}$ being a coupling parameter and focus only on the strong regime of the
interaction betwe... | 2303.00572v2 |
2023-03-01 | $Λ$ parameter of the SU(3) Yang-Mills theory from the continuous $β$ function | Nonperturbative determinations of the renormalization group $\beta$ function
are essential to connect lattice results to perturbative predictions of
strongly coupled gauge theories and to determine the $\Lambda$ parameter or the
strong coupling constant. The continuous $\beta$ function is very well suited
for this task... | 2303.00704v2 |
2023-03-10 | Probing the $CP$ nature of the top-Higgs Yukawa coupling in $t\bar{t}H$ and $tH$ events with $H \to b\bar{b}$ decays using the ATLAS detector at the LHC | The $CP$ properties of the coupling between the Higgs boson and the top quark
are investigated with 139 fb$^{-1}$ of proton-proton collision data recorded by
the ATLAS experiment at the LHC at a centre-of-mass energy of $\sqrt{s}=13$
TeV. The $CP$ structure of the top quark-Higgs boson Yukawa coupling is probed
in even... | 2303.05974v1 |
2023-03-13 | Physics-driven machine learning models coupling PyTorch and Firedrake | Partial differential equations (PDEs) are central to describing and modelling
complex physical systems that arise in many disciplines across science and
engineering. However, in many realistic applications PDE modelling provides an
incomplete description of the physics of interest. PDE-based machine learning
techniques... | 2303.06871v3 |
2023-03-14 | Effects of Mutual Coupling on Degree of Freedom and Antenna Efficiency in Holographic MIMO Communications | The holographic multiple-input-multiple-output (MIMO) communications refer to
the MIMO systems built with ultra-dense antenna arrays, whose channel models
and potential applications have attracted increasing attentions recently. When
the spacing between adjacent array elements is larger than half wavelength, the
effect... | 2303.07764v1 |
2023-03-17 | Top quark effective couplings from top-pair tagged photoproduction in $\boldsymbol{pe^-}$ collisions | We summarize the quantitative results of our analysis [1] of top-pair
photoproduction in semileptonic mode in $pe$ collisions at the LHeC and FCC-he.
We define three photoproduction regions, based on the rapidity acceptance range
of the electron tagger, that provide different degrees of sensitivity to
top-quark effecti... | 2303.10286v1 |
2023-03-19 | Extraordinary surface critical behavior induced by symmetry-protected topological state of a two-dimensional quantum magnet | Using Quantum Monte Carlo simulations, we study spin-1/2 diagonal ladders
coupled by ferromagnetic Heisenberg interactions. The model can also be viewed
as usual ladders with ferromagnetic rung couplings coupled by antiferromagnetic
diagonal couplings. We find that the model hosts a striped magnetic ordered
phase and t... | 2303.10647v1 |
2023-03-22 | Magnetic tuning of the tunnel coupling in an optically active quantum dot molecule | Self-assembled optically active quantum dot molecules (QDMs) allow the
creation of protected qubits via singlet-triplet spin states. The qubit energy
splitting of these states is defined by the tunnel coupling strength and is,
therefore, determined by the potential landscape and thus fixed during growth.
Applying an in... | 2303.12552v1 |
2023-03-28 | Generalized rotating-wave approximation for the quantum Rabi model with optomechanical interaction | We investigate the spectrum of energy and eigenstates of a hybrid cavity
optomechanical system, where a cavity field mode interacts with a mechanical
mode of a vibrating end mirror via radiation pressure and with a two level atom
via electric dipole interaction. In the spirit of approximations developed for
the quantum... | 2303.16164v1 |
2023-03-30 | Dispersion engineering of infrared epsilon-near-zero modes by strong coupling to optical cavities | Epsilon-near-zero (ENZ) materials have recently emerged as a promising
platform for infrared nanophotonics. A significant challenge in the design of
ENZ-based optics is to control the dispersion of ENZ modes, which otherwise
have a flat profile near the ENZ frequency. Strong coupling with an optical
cavity is a promisi... | 2303.17652v1 |
2023-04-05 | Lamb Shift and the Vacuum Rabi Splitting in a Strongly Dissipative Environment | We study the vacuum Rabi splitting of a qubit ultrastrongly coupled to a
high-$Q$ cavity mode and a radiation reservoir. Three methods are employed: a
numerically exact variational approach with a multiple Davydov ansatz, the
rotating-wave approximation (RWA), and the transformed RWA. Agreement between
the variational ... | 2304.02674v1 |
2023-04-06 | Inverse Volume Scaling of Finite-Size Error in Periodic Coupled Cluster Theory | Coupled cluster theory is one of the most popular post-Hartree-Fock methods
for ab initio molecular quantum chemistry. The finite-size error of the
correlation energy in periodic coupled cluster calculations for
three-dimensional insulating systems has been observed to satisfy the inverse
volume scaling, even in the ab... | 2304.03330v2 |
2023-04-09 | Extraordinary coupled spin and chirality of electromagnetic guided waves | Optical spin and chirality play key roles in the interaction between light
and chiral materials. The propagating guided modes by optical waveguides hardly
produce optical chirality because of the broken symmetry between electric and
magnetic components. Here for the first time we discover that the directional
coupling ... | 2304.04764v1 |
2023-04-13 | A Dynamic Adverse Selection Multiagent Model with Off-Menu Actions | In dynamic mechanism design literature, one critical aspect has been
typically ignored-the agents' periodic participation, which they can adapt and
plan strategically. We propose a framework for dynamic principal-multiagent
problems, augmenting the classic model by incorporating agents' periodic
coupled decisions on pa... | 2304.06842v3 |
2023-04-16 | Continuum theory of electrostatic-elastic coupling interactions in colloidal crystals | Electrostatic-elastic coupling in colloidal crystals, composed of a mobile
Coulomb gas permeating a fixed background crystalline lattice of charged
colloids, is studied on the continuum level in order to analyze the
lattice-mediated interactions between mobile charges. The linearized, Debye-H\"
uckel-like mean-field eq... | 2304.07700v1 |
2023-04-18 | Release of virtual photon and phonon pairs from qubit-plasmon-phonon ultrastrong coupling system | The most important difference between ultrastrong and non-ultrastrong
coupling regimes is that the ground state contains excitations. We consider a
qubit-plasmon-phonon ultrastrong coupling (USC) system with a three-level atom
coupled to the photon and phonon via its upper two energy levels and show that
spontaneous em... | 2304.08704v3 |
2023-04-18 | Dispersion engineering in spin-orbit coupled spinor $F=1$ condensates driven by negative masses | In this paper, we bring out several potential signatures of negative mass
regimes while investigating an expanding spin-orbit (SO) coupled spinor $F=1$
Bose-Einstein condensates by analyzing the dispersion relation of the
single-particle quantum system. In SO-coupled spinor condensates, a negative
mass parameter genera... | 2304.08844v2 |
2023-04-19 | Hybrid plasmonic modes for enhanced refractive index sensing | Compared to single nanoparticles, strongly coupled plasmonic nanoparticles
provide attractive advantages owing to their ability to exhibit multiple
resonances with unique spectral features and higher local field intensity.
These enhanced plasmonic properties of coupled metal nanoparticles have been
used for various app... | 2304.09538v1 |
2023-04-19 | Nonreciprocal ultrastrong magnon-photon coupling in the bandgap of photonic crystals | We observe a nonreciprocal ultrastrong magnon-photon coupling in the bandgap
of photonic crystals by introducing a single crystal YIG cylinder into copper
photonic crystals cavity as a point defect. The coupling strength reaches up to
1.18 GHz, which constitutes about 10.9% of the photon energy compared to the
photon f... | 2304.09627v1 |
2023-04-19 | Light-quark Yukawa couplings from off-shell Higgs production | Yukawa couplings of the first quark generation are notoriously difficult to
constrain due to their small values within the Standard Model. Here we propose
Higgs off-shell production, with the Higgs boson decaying to four leptons, as a
probe of the up- and down-quark Yukawa couplings. Using kinematic discriminants
simil... | 2304.09772v2 |
2023-04-21 | Distributed Optimization of Clique-wise Coupled Problems | This study addresses a distributed optimization with a novel class of
coupling of variables, called clique-wise coupling.
A clique is a node set of a complete subgraph of an undirected graph.
This setup is an extension of pairwise coupled optimization problems (e.g.,
consensus optimization) and allows us to handle ... | 2304.10904v1 |
2023-04-21 | Distance-dependent emission spectrum from two qubits in a strong-coupling regime | We study the emission spectrum of two distant qubits strongly coupled to a
waveguide by using the numerical and analytical approaches, which are beyond
the Markovian approximation and the rotating-wave approximation (RWA). The
numerical approach combines the Dirac-Frenkel time-dependent variational
principle with the m... | 2304.11103v1 |
2023-04-21 | Relaxation breakdown and resonant tunneling in ultrastrong-coupling cavity QED | We study the open relaxation dynamics of an asymmetric dipole that is
ultrastrongly coupled to a single electromagnetic cavity mode. By using a
thermalizing master equation for the whole interacting system we derive a phase
diagram of the Liouvillian gap. It emerges that the ultrastrong coupling
inhibits the system rel... | 2304.11191v2 |
2023-04-24 | Adiabatic and isocurvature perturbations in extended theories with kinetic couplings | The scalar field sector in low--energy effective field theories motivated by
string theory often contains several scalar fields, some of which possess
non--standard kinetic terms. In this paper, we study theories with two scalar
fields, in which one of the fields has a non--canonical kinetic term. The
kinetic coupling ... | 2304.12364v3 |
2023-04-14 | Spin 3/2 in the Causal Approach | We consider the general framework of perturbative quantum field theory for
the pure Yang-Mills model developped in [10] and consider the coupling with
spin 3/2 particles. We will derive the most general form of the interaction
with pure Yang-Mills particles and with the spin $2$ field. The expressions for
the interacti... | 2304.12971v1 |
2023-04-26 | Quantum light-matter interactions in structured waveguides | We explore special features of quantum light-matter interactions inside
structured waveguides due to their finite bandwidth, band edges, and
non-trivial topological properties. We model the waveguides as either a
tight-binding (TB) chain or a Su-Schrieffer-Heeger (SSH) chain. For
unstructured waveguides with infinite b... | 2304.13306v1 |
2023-05-03 | Synchronization in Networks of Neural Mass Model Populations with Discrete Couplings | The problem of synchronization in networks of neural mass model populations
with discrete couplings is considered. The considered network is hybrid one,
therefore Mikheev approach is applied to transform it to the network with
time-varying delayed couplings. Thus the problem of hybrid network
synchronization is reduced... | 2305.02021v1 |
2023-05-04 | Efficient tensor-network simulation for the few-atom multimode Dicke model via coupling-matrix transformation | We present a novel generalization of the chain mapping technique that applies
to multi-atom, multimode systems by making use of coupling matrix
transformations. This is extremely useful for tensor network simulations of
multimode Dicke model and multi-spin-boson model because their coupling
structures are altered from ... | 2305.03160v2 |
2023-05-09 | On unitarity in singlet inflation with a non-minimal coupling to gravity | We study inflationary models based on a non-minimal coupling of a singlet
scalar to gravity, focussing on the preheating dynamics and the unitarity
issues in this regime. If the scalar does not have significant couplings to
other fields, particle production after inflation is far less efficient than
that in Higgs infla... | 2305.05682v2 |
2023-05-21 | Restoring Strong Cosmic Censorship in Reissner-Nordstrom-de Sitter Black Holes via Non-Minimal Electromagnetic-Scalar Couplings | We investigate whether the Strong Cosmic Censorship (SCC) Conjecture can be
reinstated in Reissner-Nordstr\"om-de Sitter (RNdS) black holes by introducing
non-minimal couplings between the electromagnetic and scalar fields in
Einstein-Maxwell-scalar (EMS) theory. By conducting numerical calculations, we
find that the S... | 2305.12338v1 |
2023-05-24 | Enhancement of synthetic magnetic field induced nonreciprocity via bound states in continuum in dissipatively coupled systems | The nonreciprocal propagation of light typically requires use of materials
like ferrites or magneto-optical media with a strong magnetic bias or methods
based on material nonlinearities which require use of strong electromagnetic
fields. A simpler possibility to produce nonreciprocity is to use
spatio-temporal modulati... | 2305.14945v1 |
2023-05-25 | Phase-controlled improvement of photon lifetime in coupled superconducting cavities | High-quality cavities are crucial for various fundamental physical studies
and applications. Here we find that by coupling two cavities directly or via a
phase-tunable coupling channel, the photon lifetime of the local field can
exceed that of the bare cavities. The cavity photon lifetime is modified by the
phases of t... | 2305.15662v2 |
2023-05-28 | Integrability of a globally coupled complex Riccati array: quadratic integrate-and-fire neurons, phase oscillators and all in between | We present an exact dimensionality reduction for dynamics of an arbitrary
array of globally coupled complex-valued Riccati equations. It generalizes the
Watanabe-Strogatz theory [Phys. Rev. Lett. 70, 2391 (1993)] for sinusoidally
coupled phase oscillators and seamlessly includes quadratic integrate-and-fire
neurons as ... | 2305.17683v4 |
2023-06-02 | multiRegionFoam -- A Unified Multiphysics Framework for Multi-Region Coupled Continuum-Physical Problems | This paper presents a unified framework, called multiRegionFoam, for solving
multiphysics problems of the multi-region coupling type within OpenFOAM
(FOAM-extend). It is intended to supersede the existing solver with the same
name. The design of the new framework is modular, allowing users to assemble a
multiphysics pr... | 2306.01924v2 |
2023-06-03 | On the Empirical Evidence of Microservice Logical Coupling. A Registered Report | [Context] Coupling is a widely discussed metric by software engineers while
developing complex software systems, often referred to as a crucial factor and
symptom of a poor or good design. Nevertheless, measuring the logical coupling
among microservices and analyzing the interactions between services is
non-trivial bec... | 2306.02036v1 |
2023-06-08 | CoCo: A Coupled Contrastive Framework for Unsupervised Domain Adaptive Graph Classification | Although graph neural networks (GNNs) have achieved impressive achievements
in graph classification, they often need abundant task-specific labels, which
could be extensively costly to acquire. A credible solution is to explore
additional labeled graphs to enhance unsupervised learning on the target
domain. However, ho... | 2306.04979v2 |
2023-06-09 | Unraveling a cavity induced molecular polarization mechanism from collective vibrational strong coupling | We demonstrate that collective vibrational strong coupling of molecules in
thermal equilibrium can give rise to significant local electronic polarizations
in the thermodynamic limit. We do so by first showing that the full
non-relativistic Pauli-Fierz problem of an ensemble of strongly-coupled
molecules in the dilute-g... | 2306.06004v4 |
2023-06-13 | Quantum coherent feedback control of an N-level atom with multiple excitations | The purpose of this paper is to study the coherent feedback control dynamics
based on the network that an $N$-level atom is coupled with a cavity and the
cavity is coupled with a single or multiple parallel waveguides through two
semitransparent mirrors. When initially the atom is excited at the highest
energy level, i... | 2306.07787v1 |
2023-06-02 | Adaptive physics-informed neural networks for dynamic thermo-mechanical coupling problems in large-size-ratio functionally graded materials | In this paper, we present the adaptive physics-informed neural networks
(PINNs) for resolving three dimensional (3D) dynamic thermo-mechanical coupling
problems in large-size-ratio functionally graded materials (FGMs). The physical
laws described by coupled governing equations and the constraints imposed by
the initial... | 2306.07982v1 |
2023-06-15 | Improving the Lower Bound for the Union-closed Sets Conjecture via Conditionally IID Coupling | Recently, Gilmer proved the first constant lower bound for the union-closed
sets conjecture via an information-theoretic argument. The heart of the
argument is an entropic inequality involving the OR function of two i.i.d.\
binary vectors, and the best constant obtainable through the i.i.d.\ coupling
is $\frac{3-\sqrt{... | 2306.08824v1 |
2023-06-20 | Renormalization of Massive Rank-1 Field Theory Nonminimally Coupled to Quantum Gravity | We consider a self-interacting, massive rank-1 field coupled to quantum
gravity. The theory is renormalizable by power counting and contains a massive
spin-1 field and a massive scalar field. The latter has a propagator with
negative residue and it is quantized as a purely virtual particle, namely it
cannot appear as e... | 2306.11874v2 |
2023-06-26 | Thermalization slowing down in multidimensional Josephson junction networks | We characterize thermalization slowing-down of Josephson junction networks in
1, 2 and 3 spatial dimensions for systems with hundreds of sites by computing
their entire Lyapunov spectra. The ratio of Josephson coupling $E_J$ to energy
density $h$ controls two different universality classes of thermalization
slowing-dow... | 2306.14398v2 |
2023-06-26 | Electron Teleportation via Multiple Majorana Bound States in a Superconductor Island | Electron teleportation via two separate Majorana bound states(MBSs) is a
manifestation of the non-locality of MBSs. A superconductor may host multiple
separate or partial overlapping MBSs, and it is difficult to distinguish them.
Here, we have studied the electron teleportation between two quantum dots via
multiple MBS... | 2306.14455v1 |
2023-06-28 | Controlling lasing around Exceptional Points in Coupled Nanolasers | Coupled nanolasers are of growing interest for on-chip optical computation
and data transmission, which requires an understanding of how lasers interact
to form complex systems. The non-Hermitian interaction between two coupled
resonators, when excited selectively, can lead to parity-time symmetry, the
formation of exc... | 2306.16112v1 |
2023-06-28 | Developing high-impedance superconducting resonators and on-chip filters for semiconductor quantum dot circuit quantum electrodynamics | Spin-photon coupling presents an enticing opportunity for the long-range
coupling of spin qubits. The spin-photon coupling rate $g_{s}$ is proportional
to the charge-photon coupling rate $g_{c}$. To move deeper into the strong
coupling regime, $g_{c}$ can be enhanced by fabricating high-impedance cavities
using high ki... | 2306.16499v1 |
2023-07-04 | Superconducting Non-Reciprocity Based on Time-Modulated Coupled-Resonator Systems | We present a unified approach for designing a diverse range of
superconducting non-reciprocal components, including circulators, isolators,
and uni-directional amplifiers, based on temporally-modulated coupled resonator
networks. Our method leverages standard SQUID-based resonators as building
blocks, arranged in vario... | 2307.01853v1 |
2023-07-05 | Cavity-Born-Oppenheimer Hartree-Fock Ansatz: Light-matter Properties of Strongly Coupled Molecular Ensembles | Experimental studies indicate that optical cavities can affect chemical
reactions, through either vibrational or electronic strong coupling and the
quantized cavity modes. However, the current understanding of the interplay
between molecules and confined light modes is incomplete. Accurate theoretical
models, that take... | 2307.02208v1 |
2023-07-13 | Stability of coupled Wilson-Cowan systems with distributed delays | Building upon our previous work on the Wilson-Cowan equations with
distributed delays, we study the dynamic behavior in a system of two coupled
Wilson-Cowan pairs. We focus in particular on understanding the mechanisms that
govern the transitions in and out of oscillatory regimes associated with
pathological behavior. ... | 2307.06628v1 |
2023-07-13 | Magnon-magnon coupling in synthetic ferrimagnets | Magnetic multilayers with interlayer exchange coupling have been widely
studied for both static and dynamic regimes. Their dynamical responses depend
on the exchange coupling strength and magnetic properties of individual layers.
Magnetic resonance spectra in such systems are conveniently discussed in terms
of coupling... | 2307.06888v2 |
2023-07-14 | Fully Coupled Forced Response Analysis of Nonlinear Turbine Blade Vibrations in the Frequency Domain | For the first time, a fully-coupled Harmonic Balance method is developed for
the forced response of turbomachinery blades. The method is applied to a
state-of-the-art model of a turbine bladed disk with interlocked shrouds
subjected to wake-induced loading. The recurrent opening and closing of the
pre-loaded shroud con... | 2307.07365v1 |
2023-07-14 | Hydrodynamic Navier-Stokes equations in two-dimensional systems with Rashba spin-orbit coupling | We study a two-dimensional (2D) electron system with a linear spectrum in the
presence of Rashba spin-orbit (RSO) coupling in the hydrodynamic regime. We
derive a semiclassical Boltzmann equation with a collision integral due to
Coulomb interactions in the basis of the eigenstates of the system with RSO
coupling. Using... | 2307.07408v3 |
2023-07-16 | Probing the $Zb\bar{b}$ coupling at the $Z$-pole of future lepton colliders | The determination of the $Zb\bar{b}$ coupling in experiments has been a
long-standing challenge, as the limited precision of off $Z$-pole measurements
at the LEP has resulted in two degenerate solutions remained to be resolved. In
this paper, we propose a novel method to probe the $Zb\bar{b}$ coupling by
measuring the ... | 2307.08014v1 |
2023-07-20 | Gravitational baryogenesis in non-minimal kinetic coupling model | In this work, we consider the gravitational baryogenesis in the framework of
non-minimal derivative coupling model. A mechanism to generate the baryon
asymmetry based on the coupling between the derivative of the Ricci scalar
curvature and the baryon current in context of non-minimal derivative coupling
model is invest... | 2307.10709v2 |
2023-07-23 | A monolithic space-time temporal multirate finite element framework for interface and volume coupled problems | In this work, we propose and computationally investigate a monolithic
space-time multirate scheme for coupled problems. The novelty lies in the
monolithic formulation of the multirate approach as this requires a careful
design of the functional framework, corresponding discretization, and
implementation. Our method of ... | 2307.12455v2 |
2023-07-25 | Electron-phonon coupling in semiconductors at high electronic temperatures | A nonperturbative dynamical coupling approach based on tight-binding
molecular dynamics is used to evaluate the electron-ion (electron-phonon)
coupling parameter in irradiated semiconductors as a function of the electronic
temperature up to ~25,000 K. The method accounts for arbitrary electronic
distribution function v... | 2307.13554v1 |
2023-07-27 | Plasmon mediated coherent population oscillations in molecular aggregates | The strong coherent coupling of quantum emitters to vacuum fluctuations of
the light field offers opportunities for manipulating the optical and transport
properties of nanomaterials, with potential applications ranging from
ultrasensitive all-optical switching to creating polariton condensates. Often,
ubiquitous decoh... | 2307.14708v1 |
2023-07-27 | Spin Coupling Effect on Geometry-Dependent X-ray Absorption of Diradicals | We theoretically investigate the influence of diradical electron spin
coupling on the time-resolved X-ray absorption spectra of the photochemical
ring opening of furanone. We predict geometry dependent carbon K-edge signals
involving transitions from core orbitals to both singly and unoccupied
molecular orbitals. The m... | 2307.15207v1 |
2023-07-30 | Synchronizability in randomized weighted simplicial complexes | We present a formula for determining synchronizability in large, randomized
and weighted simplicial complexes. This formula leverages eigenratios and costs
to assess complete synchronizability under diverse network topologies and
intensity distributions. We systematically vary coupling strengths (pairwise
and three-bod... | 2307.16163v3 |
2023-07-31 | Higgs self-coupling measurement at the International Linear Collider | The Higgs sector of particle physics is still largely uncovered, where
establishing the Higgs mechanism is central to advance the field. The Higgs
self-coupling is the key ingredient missing and an important puzzle piece for
potentially uncovering new physics beyond the standard model. With the energy
reach and precisi... | 2307.16515v1 |
2023-08-01 | Contractive coupling rates and curvature lower bounds for Markov chains | Contractive coupling rates have been recently introduced by Conforti as a
tool to establish convex Sobolev inequalities (including modified log-Sobolev
and Poincar\'{e} inequality) for some classes of Markov chains. In this work,
we show how contractive coupling rates can also be used to prove stronger
inequalities, in... | 2308.00516v1 |
2023-08-04 | Spin-valley locking in Kekulé-distorted graphene with Dirac-Rashba interactions | The joint effects of Kekul\'e lattice distortions and Rashba-type spin-orbit
coupling on the electronic properties of graphene are explored. We modeled the
position dependence of the Rashba energy term in a manner that allows its
seamless integration into the scheme introduced by Gamayun et al.[New J. Phys.
20, 023016 ... | 2308.02130v1 |
2023-08-04 | Decoupling control parameter method to study the coupling characteristics of subsystems in the feed system | When developing high-speed and high-precision CNC machine tools, subsystem
coupling effects must be considered while designing the feed system to maximize
its dynamic performance. Currently, the influence of changes in control
parameters on the matching characteristics of each subsystem was not yet
considered when stud... | 2308.02187v2 |
2023-08-05 | Analytical results for a spin-orbit coupled atom held in a non-Hermitian double well under synchronous combined modulation | We propose a simple method of synchronous combined modulations to generate
the exact analytic solutions for a spin-orbit (SO) coupled ultracold atom held
in a non-Hermitian double-well potential. Based on the obtained analytical
solutions, we mainly study the parity-time ($\mathcal{PT}$) symmetry of this
system and the... | 2308.02848v1 |
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