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2021-05-06
Chimera states and frequency clustering in systems of coupled inner-ear hair cells
Coupled hair cells of the auditory and vestibular systems perform the crucial task of converting the energy of sound waves and ground-borne vibrations into ionic currents. We mechanically couple groups of living, active hair cells with artificial membranes, thus mimicking in vitro the coupled dynamical system. We ident...
2105.04412v1
2021-05-10
Black hole scalarization with Gauss-Bonnet and Ricci scalar couplings
Spontaneous scalarization is a gravitational phenomenon in which deviations from general relativity arise once a certain threshold in curvature is exceeded, while being entirely absent below that threshold. For black holes, scalarization is known to be triggered by a coupling between a scalar and the Gauss-Bonnet invar...
2105.04479v2
2021-05-13
Supernova constraints on an axion-photon-dark photon interaction
We present the supernova constraints on an axion-photon-dark photon coupling, which can be the leading coupling to dark sector models and can also lead to dramatic changes to axion cosmology. We show that the supernova bound on this coupling has two unusual features. One occurs because the scattering that leads to the ...
2105.06476v2
2021-05-14
Sizable triple Higgs couplings in the 2HDM: Prospects for future $e^+e^-$ colliders
In the framework of the $\mathcal{CP}$ conserving Two Higgs Doublet Model (2HDM), type I and II, we study the triple Higgs couplings with at least one light $h$ Higgs boson that is identified by the 125 GeV Higgs boson. We define benchmark planes that exhibit large values of triple Higgs couplings, while being in agree...
2105.06976v1
2021-05-24
Collider Prospects for Muon $g-2$ in General Two Higgs Doublet Model
Recent progress on muon $g-2$ measurement prompts one to take it even more seriously. In the general two Higgs doublet model that allows extra Yukawa couplings, we take a simplified approach of single enhanced coupling. We fix the charged lepton flavor violating coupling, $\rho_{\tau\mu} = \rho_{\mu\tau}$, via the one-...
2105.11315v2
2021-05-31
Entropy Dissipation at the Junction for Macroscopic Traffic Flow Models
A maximum entropy dissipation problem at a traffic junction and the corresponding coupling condition are studied. We prove that this problem is equivalent to a coupling condition introduced by Holden and Risebro. An $L^1$-contraction property of the coupling condition and uniqueness of solutions to the Cauchy problem a...
2105.15003v3
2021-06-03
Strong coupling regime and hybrid quasinormal modes of a single plasmonic resonator coupled to a TMDC monolayer
We present a rigorous photonic mode model to describe the strong coupling between a monolayer of $\rm MoSe_2$ and a single gold nanoparticle. The onset of strong coupling is quantified by computing the three-dimensional hybrid quasinormal modes of the combined structure, allowing one to accurately model light-matter in...
2106.01892v1
2021-06-04
Insights on the coupling between vibronically active molecular vibrations and lattice phonons in molecular nanomagnets
Spin-lattice relaxation is a key open problem to understand the spin dynamics of single-molecule magnets and molecular spin qubits. While modelling the coupling between spin states and local vibrations allows to determine the more relevant molecular vibrations for spin relaxation, this is not sufficient to explain how ...
2106.02611v1
2021-06-07
Mutual control of stochastic switching for two electrically coupled superparamagnetic tunnel junctions
Superparamagnetic tunnel junctions (SMTJs) are promising sources for the randomness required by some compact and energy-efficient computing schemes. Coupling SMTJs gives rise to collective behavior that could be useful for cognitive computing. We use a simple linear electrical circuit to mutually couple two SMTJs throu...
2106.03604v2
2021-06-10
Charged reflecting shells supporting non-minimally coupled massless scalar field configurations
We study {\it analytically} the physical and mathematical properties of spatially regular massless scalar field configurations which are non-minimally coupled to the electromagnetic field of a spherically symmetric charged reflecting shell. In particular, the Klein-Gordon wave equation for the composed charged-reflecti...
2106.05736v1
2021-06-10
Precision axion physics with running axion couplings
We study the renormalization group running of axion couplings while taking into account that the Standard Model can be extended to its supersymmetric extension at a certain energy scale below the axion decay constant. We then apply our results to three different classes of axion models, i.e. KSVZ-like, DFSZ-like, and s...
2106.05816v2
2021-06-11
Anomalous couplings in associated $VH$ production with Higgs decay to massive $b$ quarks at NNLO in QCD
We combine the NNLO QCD description of Higgs boson production in association with an electroweak vector boson $V = W~{\rm or}~Z$ with a similarly-precise description of Higgs boson decays into a pair of massive $b$ quarks and with the anomalous couplings that modify interactions of the Higgs and electroweak vector boso...
2106.06328v1
2021-06-13
Simple but accurate estimation of light-matter coupling strength and optical loss for a molecular emitter coupled with photonic modes
Light-matter coupling strength and optical loss are two key physical quantities in cavity quantum electrodynamics (cQED), and their interplay determines whether light-matter hybrid states can be formed or not in chemical systems. In this study, by using macroscopic quantum electrodynamics (mQED) combined with a pseudom...
2106.07031v1
2021-06-14
Transition to strong coupling regime in hybrid plasmonic systems: Exciton-induced transparency and Fano interference
We present a microscopic model describing the transition to strong coupling regime for an emitter resonantly coupled to a surface plasmon in a metal-dielectric structure. We demonstrate that the shape of scattering spectra is determined by an interplay of two distinct mechanisms. First is the near-field coupling betwee...
2106.07721v2
2021-06-15
Polarized image of a Schwarzschild black hole with a thin accretion disk as photon couples to Weyl tensor
We have studied polarized image of a Schwarzschild black hole with an equatorial thin accretion disk as photon couples to Weyl tensor. The birefringence of photon originating from the coupling affect the black hole shadow, the thin disk pattern and its luminosity distribution. We also analyze the observed polarized int...
2106.07981v2
2021-06-16
Vacuum stability with radiative Yukawa couplings
We explore the electroweak vacuum stability in the framework of a recently proposed paradigm for the origin of Yukawa couplings. These arise as low energy effective couplings radiatively generated by portal interactions with a hidden, or dark, sector at the one-loop level. Possible tree-level Yukawa couplings are forbi...
2106.09038v2
2021-06-26
Anomalous couplings in Higgs-boson pair production at approximate NNLO QCD
We combine NLO predictions with full top-quark mass dependence with approximate NNLO predictions for Higgs-boson pair production in gluon fusion, including the possibility to vary coupling parameters within a non-linear Effective Field Theory framework containing five anomalous couplings for this process. We study the ...
2106.14050v2
2021-06-28
Strong coupling in thermoelectric nanojunctions: a reaction coordinate framework
We study a model of a thermoelectric nanojunction driven by vibrationally-assisted tunneling. We apply the reaction coordinate formalism to derive a master equation governing its thermoelectric performance beyond the weak electron-vibrational coupling limit. Employing full counting statistics we calculate the current f...
2106.14799v2
2021-06-28
TQFT at work for IR-renormalons, resurgence and Lefschetz decomposition
We investigate the implications of coupling a topological quantum field theory (TQFT) to Yang-Mills theory with $SU(N)$ gauge group in the context of the IR-renormalon problem. Coupling a TQFT to QFT does not change the local dynamics and perturbation theory, but it does change the bundle topology. Crucially, the confi...
2106.14971v1
2021-06-30
Yukawa coupling unification in non-supersymmetric SO(10) models with an intermediate scale
We discuss the possibility of unifying in a simple and economical manner the Yukawa couplings of third generation fermions in a non-supersymmetric SO(10) model with an intermediate symmetry breaking, focusing on two possible patterns with intermediate Pati-Salam and minimal left-right groups. assume a minimal Yukawa se...
2106.15822v2
2021-06-30
Optimal condition to probe strong coupling of two-dimensional excitons and zero-dimensional cavity modes
The light-matter interaction associated with a two-dimensional (2D) excitonic transition coupled to a zero-dimensional (0D) photonic cavity is fundamentally different from coupling localized excitations in quantum dots or color centers, which have negligible spatial extent compared to the cavity-confined mode profile. ...
2107.00078v1
2021-07-05
Supernova bounds on axion-like particles coupled with nucleons and electrons
We investigate the potential of type II supernovae (SNe) to constrain axion-like particles (ALPs) coupled simultaneously to nucleons and electrons. ALPs coupled to nucleons can be efficiently produced in the SN core via nucleon-nucleon bremsstrahlung and, for a wide range of parameters, leave the SN unhindered, produci...
2107.02186v2
2021-07-13
Sissy That Walk: Transportation to Work by Sexual Orientation
We analyze differences in mode of transportation to work by sexual orientation, using the American Community Survey 2008-2019. Individuals in same-sex couples are significantly less likely to drive to work than men and women in different-sex couples. This gap is particularly stark among men: on average, almost 12 perce...
2107.06210v1
2021-07-13
Dark matter production and reheating via direct inflaton couplings: collective effects
We study scalar dark matter production and reheating via renormalizable inflaton couplings, which include both quartic and trilinear interactions. These processes often depend crucially on collective effects such as resonances, backreaction and rescattering of the produced particles. To take them into account, we perfo...
2107.06292v3
2021-07-13
Supersolid phase of a spin-orbit-coupled Bose-Einstein condensate: a perturbation approach
The phase diagram of a Bose-Einstein condensate with Raman-induced spin-orbit coupling includes a stripe phase with supersolid features. In this work we develop a perturbation approach to study the ground state and the Bogoliubov modes of this phase, holding for small values of the Raman coupling. We obtain analytical ...
2107.06425v2
2021-07-15
Dead zones and phase reduction of coupled oscillators
A dead zone in the interaction between two dynamical systems is a region of their joint phase space where one system is insensitive to the changes in the other. These can arise in a number of contexts, and their presence in phase interaction functions has interesting dynamical consequences for the emergent dynamics. In...
2107.07152v3
2021-07-16
Synchronization on star-like graphs and emerging $\mathbb{Z}_{p}$ symmetries at strong coupling
We discuss the aspects of synchronization on inhomogeneous star-like graphs with long rays in Kuramoto model framework. We assume the positive correlation between internal frequencies and degrees for all nodes which supports the abrupt first order synchronization phase transition. It is found that different ingredients...
2107.07748v2
2021-07-22
Dissipative Josephson vortices in annular polariton fluids
We consider two concentric rings formed by bosonic condensates of exciton-polaritons. A circular superfluid flow of polaritons in one of the rings can be manipulated by acting upon the second annular polariton condensate. The complex coupling between the rings with different topological charges triggers nucleation of s...
2107.11182v1
2021-07-28
Rogue and solitary waves in coupled phononic crystals
In this work we present an analytical and numerical study of rogue and solitary waves in a coupled one-dimensional nonlinear lattice that involves both axial and rotational degrees of freedom. Using a multiple-scale analysis we derive a system of coupled nonlinear Schr\"odinger type equations in order to approximate so...
2107.13169v1
2021-08-02
Improved Efficiency of Multilevel Monte Carlo for Stochastic PDE through Strong Pairwise Coupling
Multilevel Monte Carlo (MLMC) has become an important methodology in applied mathematics for reducing the computational cost of weak approximations. For many problems, it is well-known that strong pairwise coupling of numerical solutions in the multilevel hierarchy is needed to obtain efficiency gains. In this work, we...
2108.00794v2
2021-08-02
Coherence properties of a spin in a squeezed resonator
A promising venue for hybrid quantum computation involves the strong coupling between impurity spins and superconducting resonators. One strategy to control and enhance this coupling is to prepare the resonator in a non-classical state, such as a squeezed state. In this work, we theoretically study the effects of these...
2108.01091v1
2021-08-02
Quantum Monte Carlo simulation of spin-boson models using wormhole updates
We present an exact quantum Monte Carlo method for spin systems coupled to dissipative bosonic baths which makes use of nonlocal wormhole updates to simulate the retarded spin-flip interactions originating from an off-diagonal spin-boson coupling. The method is closely related to the stochastic series expansion and ext...
2108.01131v2
2021-08-03
Engineering strong chiral light-matter interactions in a waveguide-coupled nanocavity
Spin-dependent, directional light-matter interactions form the basis of chiral quantum networks. In the solid state, quantum emitters commonly possess circularly polarised optical transitions with spin-dependent handedness. We demonstrate numerically that spin-dependent chiral coupling can be realised by embedding such...
2108.01462v3
2021-08-04
Manipulating polariton condensates by Rashba-Dresselhaus coupling at room temperature
The spin-orbit coupling plays an important role in the spin Hall effect and the topological insulators. In addition, the spin-orbit coupled Bose-Einstein condensates show remarkable quantum many-body phase transition. In this work we tune the exciton polariton condensate by virtue of the Rashba-Dresselhaus (RD) spin-or...
2108.02057v2
2021-08-09
RG Flow and Symmetry Breaking in a Weakly Coupled Model
We explore a weakly coupled $SU(N_{c})$ gauge theory, examining its fixed-point structure and the transition from infrared conformality to spontaneous symmetry breaking. Following a previous study, we couple the gauge field to $N_s$ scalars and $N_f$ fermions, take the large-$N_c$ limit with $N_s/N_c$ and $N_f/N_c$ fix...
2108.04369v2
2021-08-10
Probing anomalous $γγγZ$ couplings through $γZ$ production in $γγ$ collisions at the CLIC
We have estimated the sensitivity to the anomalous couplings of the $\gamma\gamma\gamma Z$ vertex in the $\gamma\gamma\rightarrow\gamma Z$ scattering of the Compton backscattered photons at the CLIC. Both polarized and unpolarized collisions at the $e^+e^-$ energies 1500 GeV and 3000 GeV are addressed, and anomalous co...
2108.04478v2
2021-08-12
Theory of spin-charge-coupled transport in proximitized graphene: An SO(5) algebraic approach
Establishing the conditions under which orbital, spin and lattice-pseudospin degrees of freedom are mutually coupled in realistic nonequilibrium conditions is a major goal in the emergent field of graphene spintronics. Here, we use linear-response theory to obtain a unified microscopic description of spin dynamics and ...
2108.05559v2
2021-08-15
Generalized Mode-Coupling Theory for Mixtures of Brownian Particles
Generalized mode-coupling theory (GMCT) has recently emerged as a promising first-principles theory to study the poorly understood dynamics of glass-forming materials. Formulated as a hierarchical extension of standard mode-coupling theory (MCT), it is able to systematically improve its predictions by including the exa...
2108.06829v1
2021-08-25
Identifying super-spreaders in information-epidemic coevolving dynamics on multiplex networks
Identifying super-spreaders in epidemics is important to suppress the spreading of disease especially when the medical resource is limited.In the modern society, the information on epidemics transmits swiftly through various communication channels which contributes much to the suppression of epidemics. Here we study on...
2108.11043v1
2021-08-25
Spectator Errors in Tunable Coupling Architectures
The addition of tunable couplers to superconducting quantum architectures offers significant advantages for scaling compared to fixed coupling approaches. In principle, tunable couplers allow for exact cancellation of qubit-qubit coupling through the interference of two parallel coupling pathways between qubits. Howeve...
2108.11221v1
2021-08-30
Lagged couplings diagnose Markov chain Monte Carlo phylogenetic inference
Phylogenetic inference is an intractable statistical problem on a complex space. Markov chain Monte Carlo methods are the primary tool for Bayesian phylogenetic inference but it is challenging to construct efficient schemes to explore the associated posterior distribution or assess their performance. Existing approache...
2108.13328v3
2021-09-06
Inverse obstacle scattering for elastic waves in the time domain
This paper concerns an inverse elastic scattering problem which is to determine a rigid obstacle from time domain scattered field data for a single incident plane wave. By using Helmholtz decomposition, we reduce the initial-boundary value problem of the time domain Navier equation to a coupled initial-boundary value p...
2109.02286v1
2021-09-06
Heavy quark spin partners of the $Y(4260)$ in coupled-channel formalism
The charmoniumlike state $Y(4260)$ is described as predominantly a $D_1 \bar{D}$ molecule in a coupled-channel quark model [Phys.\,Rev.\,D\,\textbf{96},\,114022\,(2017)]. The heavy quark spin symmetry (HQSS) thus implies the possible emergence of its heavy quark spin partners with molecular configuration as $D_1 \bar{D...
2109.02539v2
2021-09-10
Quantifying Effective Noise Sources in Coupled Resonating MEMS sensors
This paper presents realistic system-level modelling and simulation of effective noise sources in a coupled resonating MEMS sensors. A governing set of differential equations are used to build a numerical model of a mechanical noise source in a coupled-resonator sensor. An effective thermomechanical noise is then quant...
2109.04800v1
2021-09-12
AdS from CFT for scalar QED
We construct an explicit bulk dual in anti-de Sitter space, with couplings of order $1/N$, for the $SU(N)$-singlet sector of QED in $d$ space-time dimensions ($2 < d < 4$) coupled to $N$ scalar fields. We begin from the bulk dual for the theory of $N$ complex free scalar fields that we constructed in our previous work,...
2109.05512v1
2021-09-13
Assessing the Performance of Nonlinear Regression based Machine Learning Models to Solve Coupled Cluster Theory
The iteration dynamics of the coupled cluster equations exhibits a synergistic relationship among the cluster amplitudes. The iteration scheme may be viewed as a multivariate discrete-time propagation of nonlinearly coupled equations, which is dictated by only a few principal cluster amplitudes. These principal amplitu...
2109.05969v2
2021-09-16
Transport of localized and extended excitations in one-dimensional electrical lattices
We study the scattering properties of a bi-inductive electrical lattice consisting of a one-dimensional array of coupled LC units. For an initially localized electrical excitation, and in the absence of any impurity, we compute in closed form the mean square displacement of an initially localized electrical excitation ...
2109.08211v2
2021-09-18
Charged Lepton EDM with Extra Yukawa Couplings
In a two Higgs doublet model with extra Yukawa couplings, we assess the new physics contributions to charged lepton electric dipole moment. We focus especially on muon (and tau) EDM where in the coming decade several experiments $-$ Muon g-2, J-PARC and PSI (and Belle II) $-$ will push sensitivities down by several ord...
2109.08936v2
2021-09-24
Cosmological Implications of Axion-Matter Couplings
Axions and other light particles appear ubiquitously in physics beyond the Standard Model, with a variety of possible couplings to ordinary matter. Cosmology offers a unique probe of these particles as they can thermalize in the hot environment of the early universe for any such coupling. For sub-MeV particles, their e...
2109.12088v2
2021-09-27
Theory of superconductivity mediated by Rashba coupling in incipient ferroelectrics
Experimental evidence suggests that superconductivity in SrTiO$_3$ is mediated by a soft transverse ferroelectric mode which, according to conventional theories, has negligible coupling with electrons. A phenomenological Rashba type coupling has been proposed on symmetry arguments but a microscopic derivation is lackin...
2109.13207v2
2021-09-27
Critical Coupling for Two-dimensional $φ^4$ Theory in Discretized Light-Cone Quantization
We solve for the critical coupling in the symmetric phase of two-dimensional $\phi^4$ field theory using Discretized Light-Cone Quantization. We adopt periodic boundary conditions, neglect the zero mode, and obtain a critical coupling consistent with the critical coupling reported using conformal truncation in light-fr...
2109.13372v2
2021-09-28
Flexibility of the factorized form of the unitary coupled cluster ansatz
The factorized form of the unitary coupled cluster ansatz is a popular state preparation ansatz for electronic structure calculations of molecules on quantum computers. It often is viewed as an approximation (based on the Trotter product formula) for the conventional unitary coupled cluster operator. In this work, we s...
2109.13461v1
2021-10-05
Exceptional point induced unidirectional radiation from non-Hermitian plasmonic structures
Non-Hermitian (NH) photonics has attracted considerable attention from researchers owing to exotic properties that originate from the parity-time ($\mathcal{PT}$) phase transition and exceptional points (EPs). To date, the $\mathcal{PT}$ phase transition, EPs, and circling around EPs have been investigated in many phot...
2110.01884v1
2021-10-12
Factorization and complex couplings in SYK and in Matrix Models
We consider the factorization problem in toy models of holography, in SYK and in Matrix Models. In a theory with fixed couplings, we introduce a fictitious ensemble averaging by inserting a projector onto fixed couplings. We compute the squared partition function and find that at large $N$ for a typical choice of the f...
2110.06221v2
2021-10-15
Functionalized high-speed magnon-polaritons resulting from the magnetic antenna effect
Magnon-polaritons (MPs) refer to a light--magnon coupled state and can potentially act as information carriers, possibly enabling charge-free computation. However, the light--magnon coupling is inherently weak. To achieve sufficiently strong coupling, a large ferromagnet or coupling with a microwave cavity is necessary...
2110.08147v1
2021-10-16
Analysis on numerical stability and convergence of RANS turbulence models from the perspective of coupling modes
Reynolds-averaged Navier-Stokes simulations are still the main method to study complex flows in engineering. However, traditional turbulence models cannot accurately predict flow fields with separations. In such situation, machine learning methods provide an effective way to build new data-driven turbulence closure mod...
2110.08459v1
2021-10-17
Adaptive Non-singular Terminal Sliding Mode Fault-tolerant Control of Robotic Manipulators Based on Contour Error Compensation
To achieve accurate contour tracking of robotic manipulators with dynamic uncertainties, coupling and actuator faults, an adaptive non-singular terminal sliding mode control (ANTSMC) based on cross-coupling is proposed. Firstly, the singularity is eliminated completely by using a terminal sliding mode manifold. Secondl...
2110.08705v1
2021-10-18
Segal-Bargmann Transforms Associated to a Family of Coupled Supersymmetries
The Segal-Bargmann transform is a Lie algebra and Hilbert space isomorphism between real and complex representations of the oscillator algebra. The Segal-Bargmann transform is useful in time-frequency analysis as it is closely related to the short-time Fourier transform. The Segal-Bargmann space provides a useful examp...
2110.08995v2
2021-10-19
Pair-amplitude dynamics in strongly-coupled superconductor-quantum dot hybrids
We consider a three-terminal system consisting of a quantum dot strongly coupled to two superconducting reservoirs in the infinite gap limit and weakly coupled to a normal metal. Using a real-time diagrammatic approach, we calculate the dynamics of the proximity-induced pair amplitude on the quantum dot. We find that a...
2110.10100v1
2021-10-20
Collective canard explosions of globally-coupled rotators with adaptive coupling
Canards, special trajectories that follow invariant repelling slow manifolds for long time intervals, have been frequently observed in slow-fast systems of either biological, chemical and physical nature. Here, collective canard explosions are demonstrated in a population of globally-coupled phase-rotators subject to a...
2110.10473v1
2021-10-21
Radiation Modulated Spin coupling in DNA
The spin activity in macromolecules such as DNA and oligopeptides, in the context of the Chiral Induced Spin Selectivity (CISS) has been proposed to be due to the atomic Spin-Orbit Coupling (SOC) and the associated chiral symmetry of the structures. This coupling, associated with carbon, nitrogen and oxygen atoms in bi...
2110.11250v1
2021-10-23
Asymmetric Diamond Emitters for Unidirectional Photon Coupling
The demand of single photon coupling to optical systems requires a suitable interface between negatively charged Nitrogen Vacancy (NV-) emitters in diamond to waveguides or optical circuits for applications in quantum network systems and in unidirectional emission with controlled photon states. Here, we propose a hybri...
2110.12258v1
2021-10-25
Holographic Heat Engines Coupled with Logarithmic $U(1)$ Gauge Theory
In this paper we study a new class of holographic heat engines via charged AdS black hole solutions of Einstein gravity coupled with logarithmic nonlinear $U(1)$ gauge theory. So, Logarithmic $U(1)$ AdS black holes with a horizon of positive, zero and negative constant curvatures are considered as a working substance o...
2110.12880v1
2021-10-28
Heavy-dense QCD at fixed baryon number without a sign problem
QCD at fixed baryon number can be formulated in terms of transfer matrices explicitly defined in the canonical sectors. In the heavy-dense limit, the fermionic contributions to the canonical partition functions in terms of Polyakov loops and quark occupation numbers turn out to be completely factorized in space. At low...
2110.15021v1
2021-10-29
Formation of Fano resonance in double quantum dot system
Transient electron dynamics and the Fano resonance formation over time in transport through a two quantum dot system in a T-shape geometry (2QD-T) are analysed for free electrons. Time evolution of the transport characteristics are different for a weak and a strong inter-dot coupling with respect to the dot-electrode c...
2110.15760v1
2021-11-01
Coupling single atoms to a nanophotonic whispering-gallery-mode resonator via optical guiding
We demonstrate an efficient optical guiding technique for coupling cold atoms in the near field of a planar nanophotonic circuit, and realize large atom-photon coupling to a whispering-gallery mode in a microring resonator with a single-atom cooperativity $C\gtrsim 8$. The guiding potential is created by diffracted lig...
2111.01119v3
2021-11-02
Electroweak baryogenesis by axionlike dark matter
We show that an axionlike particle (ALP) naturally implements spontaneous electroweak baryogenesis through a cosmic evolution strongly tied to the electroweak phase transition (EWPT) if it feebly couples to the Higgs field while giving a small contribution to the Higgs boson mass. The observed baryon asymmetry can be g...
2111.01327v3
2021-11-02
Anti-PT-symmetry-enhanced interconversion between microwave and optical fields
The intrinsic dissipation of systems into a shared reservoir introduces coherence between two systems, enabling anti-Parity-Time (anti-PT) symmetry. In this paper, we propose an anti-PT symmetric converter, consisting of a microwave cavity coupled dissipatively to a ferromagnetic sphere, which supports significant impr...
2111.01335v1
2021-11-03
Numerical simulation of self-dual U(1) lattice field theory with electric and magnetic matter
We study a recently proposed formulation of U(1) lattice field theory with electric and magnetic matter based on the Villain formulation. This discretization allows for a duality that gives rise to relations between weak and strong gauge coupling. There exists a self-dual value of the gauge coupling where one may study...
2111.02033v1
2021-11-03
Status of negative coupling modifiers for extended Higgs sectors
In this work, we study the status of negative coupling modifiers in extended Higgs sectors, focusing on the ratio of coupling modifiers that probes custodial symmetry violation $\lambda_{WZ} = \kappa_{W}/\kappa_{Z}$. Higgs sectors with multiplets larger than doublets are the only weakly coupled models that give tree-le...
2111.02533v2
2021-11-06
Holographic Superconductors in a Non-minimally Coupled Einstein-Maxwell-scalar Model
In this paper, we investigate holographic superconductors dual to asymptotically anti-de Sitter black holes in an Einstein-Maxwell-scalar model with a non-minimal coupling between the scalar and Maxwell fields. In the probe limit, it shows that the scalar condensate occurs below the critical temperature $T_{c}$, and de...
2111.03810v2
2021-11-08
Top quark effective couplings from top-pair tagged photoproduction in $pe^-$ collisions
We present a detailed study, at the fast detector simulation level, of top-pair photoproduction in semileptonic mode at the LHeC and FCC-he future colliders. We work in full tree-level QED, not relying on the equivalent-photon approximation, taking into account the complete photoproduction kinematics. This allows us to...
2111.04723v3
2021-11-08
Faking Gauge Coupling Unification in String Theory
Gauge coupling unification misleads infrared observers if new gauge bosons do not simultaneously come into the spectrum. Though easy to engineer in gauge theory, the situation in string theory is nuanced, due to moduli dependence. We study the possibility of faking gauge coupling unification in the context of $4$d F-th...
2111.04756v1
2021-11-12
Excite atom-photon bound state inside the coupled-resonator waveguide coupled with a giant atom
It is of fundamental interest in controlling the light-matter interaction for a long time in the field of quantum information processing. However, usual excitation with the propagating photon can hardly excite a localized state of light while keeping the atom under a subradiant decay in an atom-waveguide system. Here, ...
2111.06764v1
2021-11-15
Efficient Representation for Simulating U(1) Gauge Theories on Digital Quantum Computers at All Values of the Coupling
We derive a representation for a lattice U(1) gauge theory with exponential convergence in the number of states used to represent each lattice site that is applicable at all values of the coupling. At large coupling, this representation is equivalent to the Kogut-Susskind electric representation, which is known to prov...
2111.08015v1
2021-11-17
Plasmon Coupling Induced Photon Scattering Torque
Bio-compatible Au nanoparticles exhibit great advantages in the application of biomedical researches, such as bio-sensing, medical diagnosis, and cancer therapy. Bio-molecules can even be manipulated by laser tweezers with the optically trapped Au nanoparticles as handles. In this Letter, optical scattering torque aris...
2111.08986v1
2021-11-17
Chiral Coupling between Magnetic Layers with Orthogonal Magnetization
We report on the occurrence of strong interlayer Dzyaloshinskii-Moriya interaction (DMI) between an in-plane magnetized Co layer and a perpendicularly magnetized TbFe layer through a Pt spacer. The DMI causes a chiral coupling that favors one-handed orthogonal magnetic configurations of Co and TbFe, which we reveal thr...
2111.09197v1
2021-11-23
Arazy-Cwikel property for quasi-Banach couples
The main result of this paper establishes that the known Arazy-Cwikel property holds for classes of uniformly K-monotone spaces in the quasi-Banach setting provided that the initial couple is mutually closed. As a consequence, we get that the class of all quasi-Banach K-spaces (i.e., interpolation spaces which are desc...
2111.11782v1
2021-11-26
Unified Treatment for Scattering and Photoluminescence Properties of Strongly Coupled Metallic Nanoparticle Chains based on a Coupling Classic Harmonic Oscillator Model
We present a multimer coupling classic harmonic oscillator model to reveal the scattering and photoluminescence (PL) properties of metallic nanoparticle chains. Taking particle number from 1 to 6 as examples, we compare the calculated spectra with the experimental ones from other researchers' work, and they agree well ...
2111.13371v2
2021-11-28
The synergistic enhancement of spin-phonon interaction in a hybrid system
The investigation on significantly enhancing the coupling to NV centers at single-quanta level is of great key point to further explore its application in quantum information processing (QIP). We here study a joint scheme to further enhance NV-phonon coherent coupling with two methods working together in a hybrid optom...
2111.14043v1
2021-12-03
Dissipation-Induced Order: The $S=1/2$ Quantum Spin Chain Coupled to an Ohmic Bath
We consider an $S=1/2$ antiferromagnetic quantum Heisenberg chain where each site is coupled to an independent bosonic bath with ohmic dissipation. The coupling to the bath preserves the global SO(3) spin symmetry. Using large-scale, approximation-free quantum Monte Carlo simulations, we show that any finite coupling t...
2112.02124v2
2021-12-07
An interferometric method to estimate the eigenvalues of a Non-Hermitian two-level optical system
Non-Hermitian physics has found a fertile ground in optics. Recently, the study of mode degeneracies, i.e. exceptional points, has led to the discovery of intriguing and counterintuitive phenomena. Degeneracies are typically modeled through the coupled mode theory to determine the behaviour of eigenstates and eigenvalu...
2112.03681v1
2021-12-07
Coupling function from bath density of states
Modelling of an open quantum system requires knowledge of parameters that specify how it couples to its environment. However, beyond relaxation rates, realistic parameters for specific environments and materials are rarely known. Here we present a method of inferring the coupling between a generic system and its bosoni...
2112.04001v2
2021-12-08
Couplings of ${\cal N}=4$, $d=1$ mirror supermultiplets
We construct models of coupled semi-dynamical (spin) and dynamical mirror multiplets of ${\cal N}=4$ supersymmetric mechanics in $d=1$ harmonic superspace. Specifically, we consider a semi-dynamical mirror multiplet ${\bf (3,4,1)}$ coupled to dynamical mirror multiplets ${\bf (1, 4, 3)}$ and ${\bf (2, 4, 2)}$. Coupling...
2112.04420v3
2021-12-13
Quantum indirect synchronization
It is well known that a system with two or more levels exists a limit cycle and can be synchronized with an external drive when the system and the drive are directly coupled. One might wonder if a system can synchronize with the external drive when they are not coupled directly. In this paper, we examine this case by c...
2112.06722v1
2021-12-13
Coupled Hubbard ladders at weak coupling: Pairing and spin excitations
The Hubbard model provides a simple framework in which one can study how certain aspects of the electronic structure of strongly interacting systems can be tuned to optimize the superconducting pairing correlations and how these changes affect the mechanisms giving rise to them. Here we use a weak-coupling random phase...
2112.06998v1
2021-12-14
Coupled quintessence with a generalized interaction term
We investigate a cosmological model in which dark energy, represented by a quintessential scalar field, is directly coupled to a dark-matter perfect fluid. We are interested in solutions of cosmological relevance, namely those for which a dark-matter-dominated era long enough to allow for structure formation is followe...
2112.07608v2
2021-12-15
Round-Core-Radius-Dependent Electromagnetic Coupling of Multifilament Helical Superconducting Tapes in a Swept Magnetic Field
With the excitation and demagnetization of a magnet for magnetic resonance imaging in mind, we theoretically and numerically investigated electromagnetic coupling--especially its dependence on the round core radius $R$--of multifilament helically wound superconducting tapes under steady-state conditions in a constantly...
2112.07932v1
2021-12-17
Strong-coupling emergence of dark states in XX central spin models
It was recently shown that the XX central spin model is integrable in the presence of a magnetic field perpendicular to the plane in which the coupling exists. A large number of its eigenstates are such that the central spin is not correlated to the environmental spins it is coupled to. In this work, we first demonstra...
2112.09557v1
2021-12-20
Observation of coherent coupling between super- and subradiant states of an ensemble of cold atoms collectively coupled to a single propagating optical mode
We discuss the evolution of the quantum state of an ensemble of atoms that are coupled via a single propagating optical mode. We theoretically show that the quantum state of N atoms, which are initially prepared in the timed Dicke state, evolves through all the N - 1 states that are subradiant with respect to the propa...
2112.10806v1
2021-12-21
Giant dynamical electron-magnon coupling in metal-metal-ferromagnetic insulator heterostructure
Magnon-mediated spin transport across nonmagnetic metal (NM) and ferromagnetic insulator (FI) interface depends critically on electron-magnon coupling. We propose a novel route to enhance electron-magnon coupling dynamically from transport viewpoint. Using non-equilibrium Green's function a theoretical formalism for ma...
2112.11021v1
2021-12-21
Volume-shear coupling in a mesoscopic model of amorphous materials
We present a two-dimensional mesoscopic model of a yield stress material that includes the possibility of local volume fluctuations coupled to shear, in such a way that the shear strength of the material decreases as the local density decreases. The model reproduces a number of effects well known in the phenomenology o...
2112.11139v2
2021-12-22
The universal model of strong coupling at the nonlinear parametric resonance in open cavity-QED systems
Many molecular, quantum-dot, and optomechanical nanocavity-QED systems demonstrate strong nonlinear interactions between electrons, photons, and phonon (vibrational) modes. We show that such systems can be described by a universal model in the vicinity of the nonlinear parametric resonance involving all three degrees o...
2112.11608v2
2021-12-23
Correlative electron and light spectroscopy of strongly-coupled mid-infrared plasmon and phonon polaritons
The ability to control and modify infrared excitations in condensed matter is of both fundamental and application interests. Here we explore a system supporting low-energy excitations, in particular, mid-infrared localized plasmon modes and phonon polaritons that are tuned to be strongly coupled. We study the coupled m...
2112.12832v1
2021-12-25
A description of interpolation spaces for quasi-Banach couples by real $K$-method
The main aim of this paper is to develop a general approach, which allows to extend the basics of Brudnyi-Kruglyak interpolation theory to the realm of quasi-Banach lattices. We prove that all $K$-monotone quasi-Banach lattices with respect to a $L$-convex quasi-Banach lattice couple have in fact a stronger property of...
2112.13248v1
2021-12-27
Screening nearest-neighbor interactions in networks of exciton-polariton condensates through spin orbit coupling
We study the modification of the spatial coupling parameter between interacting ballistic exciton-polariton condensates in the presence of photonic spin orbit coupling appearing from TE-TM splitting in planar semiconductor microcavities. We propose a strategy to make the coupling strength between next-nearest-neighbour...
2112.13601v2
2021-12-30
Bistability in coupled opto-thermal micro-oscillators
In this work, we experimentally investigate the dynamics of pairs of opto-thermally driven, mechanically coupled, doubly clamped, silicon micromechanical oscillators, and numerically investigate the dynamics of the corresponding lumped-parameter model. Coupled limit cycle oscillators exhibit striking nonlinear dynamics...
2112.15213v2
2021-12-31
Non-local triple quantum dot thermometer based on Coulomb-coupled systems
Recent proposals towards non-local thermoelectric voltage-based thermometry, in the conventional dual quantum dot set-up, demand an asymmetric step-like system-to-reservoir coupling around the ground states for optimal operation (Physica E, 114, 113635, 2019). In addition to such demand for unrealistic coupling, the se...
2112.15465v1
2022-01-08
Coherence-Based Distributed Document Representation Learning for Scientific Documents
Distributed document representation is one of the basic problems in natural language processing. Currently distributed document representation methods mainly consider the context information of words or sentences. These methods do not take into account the coherence of the document as a whole, e.g., a relation between ...
2201.02846v1
2022-01-17
Analysis of bistability at the coupling between waveguide and whispering gallery modes of a nonlinear hemicylinder
The optical bistability caused by the coupling between modes of the parallel-plate waveguide and a nonlinear hemicylindrical crystal is studied using theoretical and numerical analysis. In such a system a waveguide channel is parallelly coupled to whispering gallery modes of a hemicylindrical microresonator ensuring bi...
2201.06272v1