publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2013-09-04 | Excitons in quantum dot molecules: Coulomb coupling, spin-orbit effects and phonon-induced line broadening | Excitonic states and the line shape of optical transitions in coupled quantum
dots (quantum dot molecules) are studied theoretically. For a pair of
electrically tunable, vertically aligned quantum dots we investigate the
coupling between spatially direct and indirect excitons caused by different
mechanisms such as tunn... | 1309.1032v2 |
2013-09-10 | Stable numerical coupling of exterior and interior problems for the wave equation | Stable numerical coupling of exterior and interior problems for the wave
equation | 1309.2649v1 |
2013-09-12 | Tunable power law in the desynchronization events of coupled chaotic electronic circuits | We study the statistics of the amplitude of the synchronization error in
chaotic electronic circuits coupled through linear feedback. Depending on the
coupling strength, our system exhibits three qualitatively different regimes of
synchronization: weak coupling yields independent oscillations; moderate to
strong coupli... | 1309.3240v1 |
2016-05-05 | Constraints from growth-rate data on some coupled dark energy models mimicking a $ΛCDM$ expansion | The $\Lambda CDM$ expansion could be mimicked by a dark energy coupled to
matter. Then, the equation of state $\bar w$ and coupling $\bar Q$ of this
coupled dark energy could not be constrained by observations of the Hubble
function alone. Also, in this paper, we determine the constraints on two such
coupled dark energ... | 1605.01644v1 |
2016-05-30 | Sign-Reversal Coupling in Coupled-Resonator Optical Waveguide | Coupled-resonator optical waveguides (CROWs), which play a significant role
in modern photonics, achieve waveguiding through near-field coupling between
tightly localized resonators. The coupling factor, a critical parameter in CROW
theory, determines the coupling strength between two resonators and the
waveguiding dis... | 1605.09163v1 |
2016-05-31 | Chaos in the motion of a test scalar particle coupling to Einstein tensor in Schwarzschild-Melvin black hole spacetime | We present firstly the equation of motion for a test scalar particle coupling
to Einstein tensor in the Schwarzschild-Melvin black hole spacetime through the
short-wave approximation. Through analysing Poincar\'{e} sections, the power
spectrum, the fast Lyapunov exponent indicator and the bifurcation diagram, we
invest... | 1605.09506v3 |
2016-08-01 | Upper Bounds for the Number of Solutions to Spatially Coupled Sudokus | Based on combinatorics, we evaluate the upper bounds for the number of
solutions to spatially coupled Sudokus, which are popular logic puzzles. | 1608.00952v1 |
2016-08-27 | Polarization-selective out-coupling of whispering gallery modes | Whispering gallery mode (WGM) resonators are an important building block for
linear, nonlinear and quantum optical experiments. In such experiments,
independent control of coupling rates to different modes can lead to improved
conversion efficiencies and greater flexibility in generation of non-classical
states based o... | 1608.07660v1 |
2017-10-25 | Strong Coupling of Collection of Emitters on Hyperbolic Meta-Material | Recently considerable effort is devoted to the realization of the strong
coupling regime of the radiation matter interaction in the context of emitter
at a meta surface. The strong interaction is well realized in cavity quantum
electrodynamics which also shows that the strong coupling is much easier to
realize using a ... | 1710.09210v2 |
2012-05-07 | Leptonic anomalous gauge couplings detection on electron positron colliders | We studied the dimension-6 leptonic anomalous gauge couplings in the
formulation of linearly realized gauge symmetry effective Lagrangian and
investigated the constraints on these anomalous couplings from the existed
experimental data including LEP2 and $W$/$Z$ boson decay. Some bounds of
$O(0.1-10){\rm TeV}^{-2}$ on f... | 1205.1280v2 |
2012-05-09 | Two-component solitons under a spatially modulated linear coupling: Inverted photonic crystals and fused couplers | We study two-component solitons and their symmetry-breaking bifurcations
(SBBs) in linearly coupled photonic systems with a spatially inhomogeneous
strength of the coupling. One system models an inverted virtual photonic
crystal, built by periodically doping the host medium with atoms implementing
the electromagnetical... | 1205.1899v1 |
2017-05-15 | A statistical physics approach to learning curves for the Inverse Ising problem | Using methods of statistical physics, we analyse the error of learning
couplings in large Ising models from independent data (the inverse Ising
problem). We concentrate on learning based on local cost functions, such as the
pseudo-likelihood method for which the couplings are inferred independently for
each spin. Assum... | 1705.05403v1 |
2017-07-19 | Photoinduced vibronic coupling in two-level dissipative systems | Interaction of an electron system with a strong electromagnetic wave leads to
rearrangement both the electron and vibrational energy spectra of a dissipative
system. For instance, the optically coupled electron levels become split in the
conditions of the ac Stark effect that gives rise to appearance of the
nonadiabati... | 1709.06935v1 |
2017-09-25 | Quantum interface between a transmon qubit and spins of nitrogen-vacancy centers | Hybrid quantum circuits combining advantages of each individual system have
provided a promising platform for quantum information processing. Here we
propose an experimental scheme to directly couple a transmon qubit to an
individual spin in the nitrogen-vacancy (NV) center, with a coupling strength
three orders of mag... | 1709.08508v1 |
2018-03-06 | Spherical collapse and cluster number counts in dark energy models disformally coupled to dark matter | We investigate the effects of a disformal coupling between dark energy and
dark matter in the predictions of the spherical collapse and its signatures in
galaxy cluster number counts. We find that the disformal coupling has no
significant effects on spherical collapse at high redshifts, and in particular
during matter ... | 1803.02299v2 |
2018-03-09 | Spin exchange-induced spin-orbit coupling in a superuid mixture | We investigate the ground-state properties of a dual-species spin-1/2
Bose-Einstein condensate. One of the species is subjected to a pair of Raman
laser beams that induces spin-orbit (SO) coupling, whereas the other species is
not coupled to the Raman laser. In certain limits, analytical results can be
obtained. It is ... | 1803.03387v1 |
2019-01-09 | Optimization of linear and nonlinear interaction schemes for stable synchronization of weakly coupled limit-cycle oscillators | Optimization of mutual synchronization between a pair of limit-cycle
oscillators with weak symmetric coupling is considered in the framework of the
phase reduction theory. By generalizing a previous study on the optimization of
cross-diffusion coupling matrices between the oscillators, we consider
optimization of mutua... | 1901.02721v1 |
2019-01-29 | Formulation of a Triaxial Three-Layered Earth Rotation: I. Theory and Rotational Normal Mode Solutions | In this study, we formulated a triaxial three-layered anelastic Earth
rotation theory con-sidering various core mantle couplings, including the
pressure and gravitational couplings acting on the inner core by the outer core
and mantle, the viscoelectromagnetic couplings between the outer core and
mantle, and between th... | 1901.10066v1 |
2019-03-01 | On the Griffiths-Yukawa coupling length of some Calabi-Yau families | We determine the Griffiths-Yukawa coupling length of the Calabi-Yau universal
families coming from hyperplane arrangements. | 1903.00306v1 |
2019-03-11 | Exchange-enhanced Ultrastrong Magnon-Magnon Coupling in a Compensated Ferrimagnet | The ultrastrong coupling of (quasi-)particles has gained considerable
attention due to its application potential and richness of the underlying
physics. Coupling phenomena arising due to electromagnetic interactions are
well explored. In magnetically ordered systems, the quantum-mechanical
exchange-interaction should f... | 1903.04330v2 |
2019-03-12 | Electron Counting Statistics for Non-Additive Environments | Molecular electronics is a rapidly developing field focused on using
molecules as the structural basis for electronic components. It is common in
such devices for the system of interest to couple simultaneously to multiple
environments. Here we consider a model comprised of a double quantum dot (or
molecule) coupled st... | 1903.05264v2 |
2019-03-28 | A coupled implicit-explicit time integration method for compressible unsteady flows | This paper addresses how two time integration schemes, the Heun's scheme for
explicit time integration and the second-order Crank-Nicolson scheme for
implicit time integration, can be coupled spatially. This coupling is the
prerequisite to perform a coupled Large Eddy Simulation / Reynolds Averaged
Navier-Stokes comput... | 1903.12568v2 |
2019-04-26 | Effects of Interface Steps on the Valley Orbit coupling in a Si/SiGe quantum dot | Valley-orbit coupling is a key parameter for a silicon quantum dot in
determining its suitability for applications in quantum information processing.
In this paper we study the effect of interface steps on the magnitude and phase
of valley-orbit coupling for an electron in a silicon quantum dot. Within the
effective ma... | 1904.11944v1 |
2019-08-20 | Quantum synchronization and correlation in bidirectionally and unidirectionally coupled optomechanical oscillators | Optically coupled optomechanical oscillators has turned out to be a versatile
experimental resource for exploring optomechanical synchronizations and
correlations. In this work, we investigate the phenomena of quantum
synchronization and quantum correlations in two optically coupled
optomechanical oscillators with two ... | 1908.07296v1 |
2019-12-03 | Paramagnetic molecule induced strong antiferromagnetic exchange coupling on a magnetic tunnel junction based molecular spintronics device | This paper reports our Monte Carlo (MC) studies aiming to explain the
experimentally observed paramagnetic molecule induced antiferromagnetic
coupling between the ferromagnetic (FM) electrodes. Recently developed magnetic
tunnel junction based molecular spintronics devices (MTJMSDs), which were
prepared by chemically b... | 1912.01343v1 |
2019-12-12 | Variational Coupling Revisited: Simpler Models, Theoretical Connections, and Novel Applications | Variational models with coupling terms are becoming increasingly popular in
image analysis. They involve auxiliary variables, such that their energy
minimisation splits into multiple fractional steps that can be solved easier
and more efficiently. In our paper we show that coupling models offer a number
of interesting ... | 1912.05888v1 |
2016-12-04 | Non-minimal Coupling of Torsion-matter Satisfying Null Energy Condition for Wormhole Solutions | We explore wormhole solutions in a non-minimal torsion-matter coupled gravity
by taking an explicit non-minimal coupling between the matter Lagrangian
density and an arbitrary function of torsion scalar. This coupling depicts the
transfer of energy and momentum between matter and torsion scalar terms. The
violation of ... | 1612.02042v1 |
2017-07-18 | The Utility of Phase Models in Studying Neural Synchronization | Synchronized neural spiking is associated with many cognitive functions and
thus, merits study for its own sake. The analysis of neural synchronization
naturally leads to the study of repetitive spiking and consequently to the
analysis of coupled neural oscillators. Coupled oscillator theory thus informs
the synchroniz... | 1707.05713v1 |
2017-11-15 | Synchronization versus stability of the invariant distribution for a class of globally coupled maps | We study a class of globally coupled maps in the continuum limit, where the
individual maps are expanding maps of the circle. The circle maps in question
are such that the uncoupled system admits a unique absolutely continuous
invariant measure (acim), which is furthermore mixing. Interaction arises in
the form of diff... | 1711.05461v2 |
2017-11-16 | Tunable hyperbolic metamaterial cavity towards few exciton strong coupling | We theoretically investigate coupling interaction between molecule excitons
and whispering gallery modes (WGMs) that approaches the limit of single exciton
strong coupling in hyperbolic metamaterial (HMM) cavity, composed of a
dielectric core wrapped by several stacks of alternative layers of metal and
dielectric. We d... | 1711.05901v1 |
2018-10-30 | Effects of periodically modulated coupling on amplitude death in nonidentical oscillators | The effects of periodically modulated coupling on amplitude death in two
coupled nonidentical oscillators are explored. The AD domain could be
significantly influenced by tuning the modulation amplitude and the modulation
frequency of the modulated coupling strength. There is an optimal value of
modulation amplitude fo... | 1810.12548v2 |
2019-05-16 | Modulating quantum Fisher information of qubit in dissipative cavity by coupling strength | By using the non-Markovian master equation, we investigate the effect of the
cavity and the environment on the quantum Fisher information (QFI) of an atom
qubit system in a dissipation cavity. We obtain the formulae of QFI for two
different initial states and analyze the effect of the atom-cavity coupling and
the cavit... | 1905.06608v1 |
2019-05-19 | Flavor signatures of complex anomalous $tcZ$ couplings | In this work we study the effects of anomalous $tcZ$ couplings. Such
couplings would potentially affect several neutral current decays of $K$ and
$B$ mesons via $Z$-penguin diagrams. Using constraints from relevant
observables in $K$ and $B$ sectors, we find that the 2$\sigma$ upper bound on
the branching ratio of ${\c... | 1905.07690v2 |
2019-05-23 | Strong Cosmic Censorship in Charged de Sitter spacetime with Scalar Field Non-minimally Coupled to Curvature | We examine the stability and the strong cosmic censorship in the
Reissner-Nordstrom-de Sitter (RN-dS) black hole by investigating the evolution
of a scalar field non-minimally coupled to the curvature. We find that when the
coupling parameter is negative, the RN-dS black hole experiences instability.
The instability di... | 1905.09461v1 |
2020-09-18 | Differential molecule-cavity mode coupling in soft-cavities | The way molecules absorb, transfer, and emit light can be dramatically
modified by coupling them to optical cavities. The extent of the modification
is often defined by the cavity-molecule coupling strength. Evaluating this
coupling strength for different types of modes supported by a cavity is crucial
in designing cav... | 2009.08760v1 |
2021-02-01 | Numerical study of the coupling layer between transducer and chip in acoustofluidic devices | We study by numerical simulation in two and three dimensions the coupling
layer between the transducer and the microfluidic chip in ultrasound
acoustofluidic devices. The model includes the transducer with electrodes, the
microfluidic chip with a liquid-filled microchannel, and the coupling layer
between the transducer... | 2102.00762v1 |
2021-02-03 | Coupled Hypergraph Maps and Chaotic Cluster Synchronization | Coupled map lattices (CMLs) are prototypical dynamical systems on
networks/graphs. They exhibit complex patterns generated via the interplay of
diffusive/Laplacian coupling and nonlinear reactions modelled by a single
iterated map at each node; the maps are often taken as unimodal, e.g., logistic
or tent maps. In this ... | 2102.02272v2 |
2015-12-31 | Coupling qubits in circuit-QED cavities connected by a bridge qubit | We analyze a coupling scheme for qubits in different cavities of circuit-QED
architecture. In contrast to the usual scheme where the cavities are coupled by
an interface capacitance we employ a bridge qubit connecting cavities to
mediate two-qubit coupling. This active coupling scheme makes it possible to
switch on/off... | 1512.09218v2 |
2016-11-11 | Strong and tunable couplings in flux-mediated optomechanics | We investigate superconducting interference device (SQUID) with two
asymmetric Josephson junctions coupled to a mechanical resonator embedded in
the loop of the SQUID. We quantize this system in the case when the frequency
of the mechanical resonator is much lower than the cavity frequency of the
SQUID and in the case ... | 1611.03842v1 |
2016-11-17 | Both Inter- and Intramolecular Coupling of O-H Groups Determine the Vibrational Response of the Water/Air Interface | Vibrational coupling is relevant not only for dissipation of excess energy
after chemical reactions but also for elucidating molecular structure and
dynamics. It is particularly important for OH stretch vibrational spectra of
water, for which it is known that in bulk both intra- and intermolecular
coupling alter the in... | 1611.06243v1 |
2018-01-17 | Synchronization of electrically coupled resonate-and-fire neurons | Electrical coupling between neurons is broadly present across brain areas and
is typically assumed to synchronize network activity. However, intrinsic
properties of the coupled cells can complicate this simple picture. Many cell
types with strong electrical coupling have been shown to exhibit resonant
properties, and t... | 1801.05874v1 |
2018-08-09 | Massive nonminimally coupled scalar field in Reissner-Nordström spacetime: Long-lived quasinormal modes and instability | Here we show that the phenomenon of arbitrarily long-lived quasinormal modes
(called quasiresonances) of a massive scalar field in the vicinity of a black
hole is not an artifact of the test field approximation, but takes place also
when the (derivative) coupling of a scalar field with the Einstein tensor is
taken into... | 1808.03346v2 |
2018-08-26 | Core-Halo Collective Instabilities | At strong space charge, transverse modes of the bunch core may effectively
couple with those of the halo, leading to instabilities well below the
core-only transverse mode-coupling threshold. | 1808.08498v1 |
2019-06-03 | Traveling kinks in an infinite array of weakly coupled pendula | We prove the existence of heteroclinic traveling waves (kinks) in an infinite
array of weakly coupled pendula. Our approach is to apply a perturbation
argument from the anti-continuum limit. | 1906.00527v1 |
2019-06-16 | Density Evolution Analysis of Partially Information Coupled Turbo Codes on the Erasure Channel | In this paper, we investigate the performance of a class of spatially coupled
codes, namely partially information coupled turbo codes (PIC-TCs) over the
binary erasure channel (BEC). This class of codes enjoy flexible code rate
adjustment by varying the coupling ratio. Moreover, the coupling method can be
directly appl... | 1906.06649v1 |
2019-06-28 | Ultra-Compact Coupling Structures for Heterogeneously Integrated Silicon Lasers | Due to the inherent in-direct bandgap nature of Silicon, heterogeneous
integration of semiconductor lasers on Silicon on Insulator (SOI) is crucial
for next-generation on-chip optical interconnects. Compact, high-efficient and
high-tolerant couplers between III-V light source and silicon chips have been
the challenge f... | 1906.12027v1 |
2019-06-28 | Microscopic mechanism of level attraction | The emerging level attraction from dissipative light-matter coupling
converges the typical Rabi-splitting feature from coherent coupling and
exhibits potentials in topological information processing. However, the
underlying microscopic quantum mechanism of dissipative coupling still remains
unclear, which brings diffic... | 1906.12142v2 |
2019-07-30 | $a_1$ meson-baryon coupling constants in the framework of soft-wall and hard-wall AdS/QCD models | We calculate the $a_1$ meson-nucleon coupling constant in the framework of
soft-wall and hard-wall AdS/QCD models. In the bulk of AdS space were written
bulk interaction Lagrangians for a minimal gauge coupling, a magnetic gauge
coupling and a triple coupling. To use AdS/CFT correspondence and these bulk
interaction La... | 1907.13477v2 |
2019-10-24 | Polytope duality for families of $K3$ surfaces and coupling | We study a relation between coupling introduced by Ebeling and the polytope
duality among families of $K3$ surfaces. | 1910.10941v1 |
2019-10-24 | Lattice duality for coupling pairs admitting polytope duality with trivial toric contribution | We study a lattice duality among families of $K3$ surfaces associated to
coupling pairs that admit polytope duality with trivial toric contribution. | 1910.10943v1 |
2020-01-02 | Single-photon scattering and bound states in an atom-waveguide system with two or multiple coupling points | In this paper, we investigate the single-photon scattering and bound states
in a one-dimensional coupled-resonator waveguide which couples to a single
artificial giant atom with two or more coupling points. When the atom couples
to the waveguide via two resonators, the single-photon reflection rate is
characterized by ... | 2001.00414v2 |
2020-01-08 | Quasi-Newton Waveform Iteration for Partitioned Fluid-Structure Interaction | We present novel coupling schemes for partitioned multi-physics simulation
that combine four important aspects for strongly coupled problems: implicit
coupling per time step, fast and robust acceleration of the corresponding
iterative coupling, support for multi-rate time stepping, and higher-order
convergence in time.... | 2001.02654v2 |
2020-01-09 | Coupling loss at the end connections of REBCO stacks: 2D modelling and measurement | In high power density superconducting motors, superconducting tapes are
usually stacked and connected together at terminals to improve the current
capacity. When a parallel sinusoidal magnetic field is applied on this
partially coupled stack, the coupling current is induced and causes additional
coupling loss. Usually ... | 2001.02866v1 |
2020-02-05 | Instantaneous shear modulus of Yukawa fluids across coupling regimes | The high frequency (instantaneous) shear modulus of three-dimensional Yukawa
systems is evaluated in a wide parameter range, from the very weakly coupled
gaseous state to the strongly coupled fluid at the crystallization point (Yukwa
melt). This allows us to quantify how shear rigidity develops with increasing
coupling... | 2002.01801v1 |
2020-04-23 | Strong coupling between magnons confined in a single magnonic cavity | Strong coupling between magnons and cavity photons was studied extensively
for quantum electrodynamics in the past few years. Recently, the strong
magnon-magnon coupling between adjacent layers in magnetic multilayers has been
reported. However, the strongly coupled magnons confined in a single nanomagnet
remains to be... | 2004.11058v1 |
2020-05-12 | Dissipative coupling, dispersive coupling and its combination in simplest opto-mechanical systems | We apply strategy of variational measurement to simplest variant of
dissipative coupling (test mass displacement change transitivity of a single
mirror) and compare it with simplest dispersive coupling (a single mirror as a
test mass, which position changes the phase of reflected wave). We compare a
ponderomotive squee... | 2005.06003v1 |
2020-10-26 | An exploratory study on machine learning to couple numerical solutions of partial differential equations | As further progress in the accurate and efficient computation of coupled
partial differential equations (PDEs) becomes increasingly difficult, it has
become highly desired to develop new methods for such computation. In deviation
from conventional approaches, this short communication paper explores a
computational para... | 2010.13917v1 |
2021-01-18 | Synchronization of wave structures in a heterogeneous multiplex network of 2D vdP lattices with attractive and repulsive intra-layer coupling | We explore numerically the synchronization effects in a heterogeneous
two-layer network of two-dimensional (2D) lattices of van der Pol
oscillators.The inter-layer coupling of the multiplex network has an attractive
character. One layer of 2D lattices is characterized by attractive coupling of
oscillators and demonstra... | 2101.07334v1 |
2021-01-22 | Mass-Conserving Implicit-Explicit Methods for Coupled Compressible Navier-Stokes Equations | Earth system models are composed of coupled components that separately model
systems such as the global atmosphere, ocean, and land surface. While these
components are well developed, coupling them in a single system can be a
significant challenge. Computational efficiency, accuracy, and stability are
principal concern... | 2101.09263v3 |
2021-03-20 | FEniCS-preCICE: Coupling FEniCS to other Simulation Software | The new software FEniCS-preCICE is a middle software layer, sitting in
between the existing finite-element library FEniCS and the coupling library
preCICE. The middle layer simplifies coupling (existing) FEniCS application
codes to other simulation software via preCICE. To this end, FEniCS-preCICE
converts between FEni... | 2103.11191v2 |
2021-03-19 | Detection of coupling in Duffing oscillator systems | In complex dynamical systems, the detection of coupling and its direction
from observed time series is a challenging task. We study coupling in coupled
Duffing oscillator systems in regular and chaotic dynamical regimes. By
observing the conditional mutual information (CMI) based on the Shannon
entropy, we successfully... | 2103.13316v2 |
2021-04-23 | Parametrizations of local vertex corrections from weak to strong coupling: importance of the Hedin three-leg vertex | In the study of correlated systems, approximations based on the dynamical
mean-field theory (DMFT) provide a practical way to take local vertex
corrections into account, which capture, respectively, particle-particle
screening at weak coupling and the formation of the local moment at strong
coupling. We show that in bo... | 2104.11534v3 |
2021-05-08 | Accurate Mode-Coupling Characterization of Low-Crosstalk Ring-Core Fibers using Integral Calculation based Swept-Wavelength Interferometry Measurement | In this paper, to accurately characterize the low inter-mode coupling of the
weakly-coupled few mode fibers (FMFs), we propose a modified inter-mode
coupling characterization method based on swept-wavelength interferometry
measurement, in which an integral calculation approach is used to eliminate
significant sources o... | 2105.03667v2 |
2021-05-14 | Sparse optimization of mutual synchronization in collectively oscillating networks | We consider a pair of collectively oscillating networks of dynamical elements
and optimize their internetwork coupling for efficient mutual synchronization
based on the phase reduction theory developed in Ref. [H. Nakao, S. Yasui, M.
Ota, K. Arai, and Y. Kawamura, Chaos 28, 045103 (2018)]. The dynamical
equations descr... | 2105.06788v1 |
2021-06-22 | The Two Scaling Regimes of the Thermodynamic Uncertainty Relation for the KPZ-Equation | We investigate the thermodynamic uncertainty relation for the $(1+1)$
dimensional Kardar-Parisi-Zhang equation on a finite spatial interval. In
particular, we extend the results for small coupling strengths obtained
previously to large values of the coupling parameter. It will be shown that,
due to the scaling behavior... | 2106.11843v1 |
2021-07-02 | Tunable strong coupling of mechanical resonance between spatially separated FePS$_3$ nanodrums | Coupled nanomechanical resonators made of two-dimensional materials are
promising for processing information with mechanical modes. However, the
challenge for these types of systems is to control the coupling. Here, we
demonstrate strong coupling of motion between two suspended membranes of the
magnetic 2D material FeP... | 2107.01262v1 |
2021-07-21 | Parametric longitudinal coupling between a high-impedance superconducting resonator and a semiconductor quantum dot singlet-triplet spin qubit | Long-distance two-qubit coupling, mediated by a superconducting resonator, is
a leading paradigm for performing entangling operations in a quantum computer
based on spins in semiconducting materials. Here, we demonstrate a novel,
controllable spin-photon coupling based on a longitudinal interaction between a
spin qubit... | 2107.10269v1 |
2021-07-23 | Robust strong coupling architecture in circuit quantum electrodynamics | We report on a robust method to achieve strong coupling between a
superconducting flux qubit and a high-quality quarter-wavelength coplanar
waveguide resonator. We demonstrate the progression from the strong to
ultrastrong coupling regime by varying the length of a shared inductive
coupling element, ultimately achievin... | 2107.11135v2 |
2021-08-07 | A potential-based construction of the increasing supermartingale coupling | The increasing supermartingale coupling, introduced by Nutz and Stebegg
(Canonical supermartingale couplings, Annals of Probability, 46(6):3351--3398,
2018) is an extreme point of the set of `supermartingale' couplings between two
real probability measures in convex-decreasing order. In the present paper we
provide an ... | 2108.03450v3 |
2021-08-24 | Uniform approximation of continuous couplings | We study the approximation of non-negative multi-variate couplings in the
uniform norm while matching given single-variable marginal constraints. | 2108.10593v1 |
2021-09-17 | In-Plane Plasmon Coupling in Topological Insulator Bi$_2$Se$_3$ Thin Films | The surface states of the 3D topological insulator (TI), Bi$_2$Se$_3$, are
known to host two-dimensional Dirac plasmon polaritons (DPPs) in the terahertz
spectral range. In TI thin films, the DPPs excited on the top and bottom
surfaces couple, leading to an acoustic and an optical plasmon mode. Vertical
coupling in the... | 2109.08515v1 |
2021-09-29 | All-optical control of phase singularities using strong light-matter coupling | Strong light-matter coupling occurs when the coupling strength between a
confined electromagnetic mode and a molecular resonance exceeds losses to the
environment. The study of strong coupling has been motivated by applications
such as lasing and the modification of chemical processes. Here we show that
strong coupling... | 2109.14487v1 |
2021-10-05 | Effective potentials in a rotating spin-orbit-coupled spin-1 spinor condensate | We theoretically study the stationary-state vortex lattice configurations of
rotating spin-orbit- and coherently-coupled spin-1 Bose-Einstein condensates
trapped in quasi-two-dimensional harmonic potentials. The combined effects of
rotation, spin-orbit and coherent couplings are analyzed systematically from
the single-... | 2110.02185v3 |
2021-10-06 | Optomagnonics in dispersive media: magnon-photon coupling enhancement at the epsilon-near-zero frequency | Reaching strong light-matter coupling in solid-state systems has been long
pursued for the implementation of scalable quantum devices. Here, we put
forward the concept of a platform capable of achieving strong coupling between
magnetic excitations (magnons) and optics based in an epsilon-near-zero medium,
that's it, a ... | 2110.02984v2 |
2021-10-08 | Nonminimally coupled ultralight axions as cold dark matter | We consider a nonminimally coupled scalar field as a potential cold dark
matter candidate. These models are natural extensions of the ultralight axion
models which are based on minimally coupled scalar fields. Such ultralight
scalar fields are motivated by string theory and, in particular, have been
studied in the cont... | 2110.04322v2 |
2021-10-14 | Kuramoto model for populations of quadratic integrate-and-fire neurons with chemical and electrical coupling | We derive the Kuramoto model (KM) corresponding to a population of weakly
coupled, nearly identical quadratic integrate-and-fire (QIF) neurons with both
electrical and chemical coupling. The ratio of chemical to electrical coupling
determines the phase lag of the characteristic sine coupling function of the KM
and crit... | 2110.07665v2 |
2021-12-11 | A Multirate Discontinuous-Galerkin-in-Time Framework for Interface-Coupled Problems | A framework is presented to design multirate time stepping algorithms for two
dissipative models with coupling across a physical interface. The coupling
takes the form of boundary conditions imposed on the interface, relating the
solution variables for both models to each other. The multirate aspect arises
when numeric... | 2112.06099v1 |
2022-01-27 | Superfluid transition temperature and fluctuation theory of spin-orbit and Rabi-coupled fermions with tunable interactions | We obtain the superfluid transition temperature of equal Rashba-Dresselhaus
spin-orbit and Rabi-coupled Fermi superfluids, from the
Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein condensate (BEC) regimes in
three dimensions for tunable $s$-wave interactions. In the presence of Rabi
coupling, we find that spin-orbit c... | 2201.11823v2 |
2022-01-28 | Operator relationship between conventional coupled cluster and unitary coupled cluster | The chemistry community has long sought the exact relationship between the
conventional and the unitary coupled cluster ansatz for a single-reference
system, especially given the interest in performing quantum chemistry on
quantum computers. In this work, we show how one can use the operator
manipulations given by the ... | 2201.11881v1 |
2022-02-10 | Double inflation via non-minimally coupled spectator | We argue that double inflation may occur when a spectator field is
non-minimally coupled to gravity. As a concrete example, we study a two-field
inflationary model where the initial spectator field is non-minimally coupled
to gravity while the initial inflaton field is minimally coupled. The
non-minimal coupling result... | 2202.04869v1 |
2022-02-22 | Maximizing the electromomentum coupling in piezoelectric laminates | Asymmetric piezoelectric composites exhibit coupling between their
macroscopic linear momentum and electric field, a coupling that does not appear
at the microscopic scale. This electromomentum coupling constitutes an
additional knob to tailor the dynamic response of the medium, analogously to
the Willis coupling in el... | 2202.10683v1 |
2022-04-15 | Quantum phases of spin-orbital-angular-momentum coupled bosonic gases in optical lattices | Spin-orbit coupling plays an important role in understanding exotic quantum
phases. In this work, we present a scheme to combine
spin-orbital-angular-momentum (SOAM) coupling and strong correlations in
ultracold atomic gases. Essential ingredients of this setting is the interplay
of SOAM coupling and Raman-induced spin... | 2204.07323v2 |
2022-05-05 | A BRST view of the spontaneous symmetry breaking | After the phase transition of a Grand Unified Theory (GUT), its single
coupling splits into the couplings of the basic interactions. On the other
side, the measurement of the Weinberg mixing angle in the eletroweak theory
determines that the couplings associated to the SU(2) and U(1) symmetries were
already distinct in... | 2205.02903v1 |
2022-05-15 | A tower of hidden sectors: a general treatment and physics implications | An analysis of a tower of hidden sectors coupled to each other, with one of
these hidden sectors coupled to the visible sector, is given and the
implications of such couplings on physics in the visible sector are
investigated. Thus the analysis considers $n$ number of hidden sectors where
the visible sector couples onl... | 2205.07316v2 |
2022-07-12 | Photonic heat transport from weak to strong coupling | Superconducting circuits provide a favorable platform for quantum
thermodynamic experiments. An important component for such experiments is a
heat valve, i.e. a device which allows one to control the heat power flowing
through the system. Here we theoretically study the heat valve based on a
superconducting quantum int... | 2207.05586v1 |
2022-07-13 | Nanoscale engineering of optical strong coupling inside metals | Optical polaritons appear when a material excitation strongly couples to the
optical mode. Such strong coupling between molecular transitions and optical
cavities results in far-reaching opportunities in modifying fundamental
properties of chemical matter. More recently an exciting prospect of
cavity-free polaritons ha... | 2207.05988v1 |
2022-07-24 | Supermartingale shadow couplings: the decreasing case | For two measures $\mu$ and $\nu$ that are in convex-decreasing order, Nutz
and Stebegg (Canonical supermartingale couplings, Ann. Probab.,
46(6):3351--3398, 2018) studied the optimal transport problem with
supermartingale constraints and introduced two canonical couplings, namely the
increasing and decreasing transport... | 2207.11732v1 |
2022-09-01 | Charting the Higgs self-coupling boundaries | Could new physics first manifest itself in Higgs self-coupling measurements?
In other words, how large could deviations in the Higgs self-coupling be, if
other Higgs and electroweak measurements are compatible with Standard Model
predictions? Using theoretical arguments supported by concrete models we derive
a bound on... | 2209.00666v3 |
2022-10-20 | Optimal Markovian coupling for finite activity Lévy processes | We study optimal Markovian couplings of Markov processes, where the
optimality is understood in terms of minimization of concave transport costs
between the time-marginal distributions of the coupled processes. We provide
explicit constructions of such optimal couplings for one-dimensional
finite-activity L\'evy proces... | 2210.11251v1 |
2022-12-08 | Electric control of spin states in frustrated triangular molecular magnets | Frustrated triangular molecular magnets are a very important class of
magnetic molecules since the absence of inversion symmetry allows an external
electric field to couple directly with the spin chirality that characterizes
their ground state. The spin-electric coupling in these molecular magnets leads
to an efficient... | 2212.04066v1 |
2023-01-27 | Electric field control of RKKY coupling through solid-state ionics | Placing a suitable spacer layer between two magnetic layers can lead to an
interaction between the magnetic layers known as Ruderman-Kittel-Kasuya-Yosida
(RKKY) coupling. Controlling RKKY coupling, particularly the ability to switch
between ferromagnetic and antiferromagnetic coupling, would enable novel
magnetic data ... | 2301.11626v1 |
2023-02-07 | Emergent dynamics of the generalized Winfree model]{Emerging asymptotic patterns in a Winfree ensemble with higher-order couplings | The Winfree model is a phase-coupled synchronization model which simplifies
pulse-coupled models such as the Peskin model on pacemaker cells. It is
well-known that the Winfree ensemble with the first-order coupling exhibits
discrete asymptotic patterns such as incoherence, locking and death depending
on the coupling st... | 2302.03179v1 |
2023-02-21 | The Benefit of Uncertainty Coupling in Robust and Adaptive Robust Optimization | Despite the modeling power for problems under uncertainty, robust
optimization (RO) and adaptive robust optimization (ARO) can exhibit too
conservative solutions in terms of objective value degradation compared to the
nominal case. One of the main reasons behind this conservatism is that, in many
practical applications... | 2302.10369v1 |
2023-03-13 | Collective synchronization of dissipatively-coupled noise-activated processes | A system of two enzymes mechanically coupled to each other in a viscous
medium was recently studied, and conditions for obtaining synchronization and
an enhanced average rate of the thermally-activated catalytic reactions of the
enzymes were identified. The transition to synchronization occurred as the
result of a glob... | 2303.07277v1 |
2023-04-10 | Synchronous control study of Chua circuit system via capacitive closed-loop coupling | Synchronous control of nonlinear circuits is of great importance in many
fields. In this paper, a capacitor is used for closed-loop coupling of three
dual-vortex attractor Chua circuits with the same circuit parameters and
different initial conditions, and the corresponding synchronization processes
and synchronization... | 2304.04568v1 |
2023-04-19 | Cavity magnomechanical coupling with coupled magnon modes in a synthetic antiferromagnet | On-chip cavity magnomechanics is an emerging field exploring acoustic and
magnonic functionalities of various ferromagnetic materials and structures
using strongly confined phonons. It is expected that such cavity magnomechanics
can be extended to multilayer ferromagnets, especially synthetic
antiferromagnets (SAFs) th... | 2304.09458v2 |
2023-04-30 | Non-decreasing martingale couplings | For many examples of couples $(\mu,\nu)$ of probability measures on the real
line in the convex order, we observe numerically that the Hobson and Neuberger
martingale coupling, which maximizes for $\rho=1$ the integral of $|y-x|^\rho$
with respect to any martingale coupling between $\mu$ and $\nu$, is still a
maximizer... | 2305.00565v1 |
2023-05-17 | Wave Function Renormalization and Flow of Couplings in Asymptotically Safe Quantum Gravity | The importance of the proper treatment of the wave function renormalization
in the renormalization group analysis of quantum gravity is pointed out. The
renormalization factor, sometimes called an inessential coupling, can be used
to fix any one of the coupling constants, with the exception of the coupling
constants th... | 2305.10591v2 |
2023-05-18 | Optimal estimation of Dimension-8 Neutral Triple Gauge Couplings at $e^+ e^-$ Colliders | We investigate the measurement of non-standard ZZV (V = {\gamma}, Z)
couplings through Z-boson pair production at the $e^+ e^-$ colliders. We adopt
Standard Model Effective Field Theory (SMEFT) approach to study these anomalous
neutral triple gauge couplings. There are one CP-conserving and three
CP-violating dim-8 SME... | 2305.11266v2 |
2023-07-02 | Effective action of heterotic string theory at order $α'^2$ | Upon examining the effective action of the heterotic string theory at order
$\alpha'^2$, an inconsistency between the Chern-Simons coupling $\Omega^2$ and
T-duality has been discovered. To address this issue, we introduce 60
parity-even independent geometrical couplings involving the $B$-field, metric,
and dilation at ... | 2307.00544v2 |
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