publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2013-06-24 | Measuring the tth coupling from SSDL+2b measurements | We evaluate the potential of a dedicated search for tth production in the
SSDL+2b channel. Such a measurement provides direct access to the top Yukawa
coupling, since the sensitivity is not convolved with the loop-level
h-gamma-gamma or poorly known hbb coupling, as is the case for present tth
searches. Furthermore, su... | 1306.5695v3 |
2013-06-28 | S-duality invariant dilaton couplings at order $α'^3$ | The Riemann curvature correction to the type II supergravity at
eight-derivative level is given schematically as
$(t_8t_8+{1}{8}\eps_{10}\eps_{10})R^4$ at tree-level. The replacement of the
generalized Riemann curvature in $t_8t_8R^4$, proposed by Gross and Sloan,
produces various NS-NS couplings which are invariant un... | 1306.6851v4 |
2015-07-13 | Engineering the coupling between Majorana bound states | We study the coupling between Majorana bound states (CMBS), which is mediated
by a topologically trivial chain in the presence of pairing coupling and
long-range coupling. The results show that CMBS can be enhanced by the pairing
coupling and long-range coupling of the trivial chain. When driving the trivial
chain by p... | 1507.03657v3 |
2015-07-14 | High cooperativity coupling between a phosphorus donor spin ensemble and a superconducting microwave resonator | We investigate the coupling of an ensemble of phosphorus donors in an
isotopically purified $^{28}$Si host lattice interacting with a superconducting
coplanar waveguide resonator. The microwave transmission spectrum of the
resonator shows a normal mode splitting characteristic for high cooperativity.
The evaluated coll... | 1507.03739v2 |
2015-07-14 | Dirac Coupled Channel Analyses of Proton Inelastic Scattering from $^{40}$Ar Nucleus | 0.8 GeV proton inelastic scatterings from $^{40}$Ar nucleus are analyzed
using an optical potential model in the Dirac coupled channel formalism. A
rotational collective model is used to obtain the transition optical potentials
for the low lying excited states of the rotational band. The optical potential
parameters of... | 1507.03774v1 |
2015-07-15 | Shear Viscosities of Photons in Strongly Coupled Plasmas | We investigate the shear viscosity of thermalized photons in the quark gluon
plasma (QGP) at weak coupling and $\mathcal{N}=4$ super Yang-Mills plasma
(SYMP) at both strong and weak couplings. We find that the shear viscosity due
to the photon-parton scattering up to the leading order of electromagnetic
coupling is sup... | 1507.04232v3 |
2015-12-03 | Correlated fluctuations in strongly-coupled binary networks beyond equilibrium | Randomly coupled Ising spins constitute the classical model of collective
phenomena in disordered systems, with applications covering ferromagnetism,
combinatorial optimization, protein folding, stock market dynamics, and social
dynamics. The phase diagram of these systems is obtained in the thermodynamic
limit by aver... | 1512.01073v1 |
2015-12-16 | Holomorphic Yukawa Couplings in Heterotic String Theory | We develop techniques, based on differential geometry, to compute holomorphic
Yukawa couplings for heterotic line bundle models on Calabi-Yau manifolds
defined as complete intersections in projective spaces. It is shown explicitly
how these techniques relate to algebraic methods for computing holomorphic
Yukawa couplin... | 1512.05322v3 |
2015-12-30 | Electroweak Baryogenesis with Anomalous Higgs Couplings | We investigate feasibility of efficient baryogenesis at the electroweak scale
within the effective field theory framework based on a non-linear realisation
of the electroweak gauge symmetry. In this framework the LHC Higgs boson is
described by a singlet scalar field, which, therefore, admits new interactions.
Assuming... | 1512.08922v2 |
2015-12-30 | Electronically--implemented coupled logistic maps | The logistic map is a paradigmatic dynamical system originally conceived to
model the discrete-time demographic growth of a population, which shockingly,
shows that discrete chaos can emerge from trivial low-dimensional non-linear
dynamics. In this work, we design and characterize a simple, low-cost,
easy-to-handle, el... | 1512.08947v1 |
2016-09-09 | Canonical Supermartingale Couplings | Two probability distributions $\mu$ and $\nu$ in second stochastic order can
be coupled by a supermartingale, and in fact by many. Is there a canonical
choice? We construct and investigate two couplings which arise as optimizers
for constrained Monge-Kantorovich optimal transport problems where only
supermartingales ar... | 1609.02867v2 |
2016-09-13 | Performance of a quantum heat engine at strong reservoir coupling | We study a quantum heat engine at strong coupling between the system and the
thermal reservoirs. Exploiting a collective coordinate mapping, we incorporate
system-reservoir correlations into a consistent thermodynamic analysis, thus
circumventing the usual restriction to weak coupling and vanishing
correlations. We app... | 1609.04035v2 |
2016-09-15 | Higgs boson couplings in multi-doublet models with natural flavour conservation | We investigate the deviation in the couplings of the standard model (SM) like
Higgs boson ($h$) with a mass of 125 GeV from the prediction of the SM in
multi-doublet models within the framework where flavour changing neutral
currents at the tree level are naturally forbidden. After we present the
general expressions fo... | 1609.04590v2 |
2016-11-04 | Fiber ring resonator with nanofiber section for chiral cavity quantum electrodynamics and multimode strong coupling | We experimentally realize an optical fiber ring resonator that includes a
tapered section with subwavelength-diameter waist. In this section, the guided
light exhibits a significant evanescent field which allows for efficient
interfacing with optical emitters. A commercial tunable fiber beam splitter
provides simple an... | 1611.01454v1 |
2016-11-06 | Terahertz-frequency magnon-phonon-polaritons in the strong coupling regime | Strong coupling between light and matter occurs when the two interact
strongly enough to form new hybrid modes called polaritons. Here we report on
the strong coupling of both the electric and magnetic degrees of freedom to an
ultrafast terahertz (THz) frequency electromagnetic wave. In our system,
optical phonons in a... | 1611.01814v3 |
2016-11-10 | Interactive optomechanical coupling with nonlinear polaritonic systems | We study a system of interacting matter quasiparticles strongly coupled to
photons inside an optomechanical cavity. The resulting normal modes of the
system are represented by hybrid polaritonic quasiparticles, which acquire
effective nonlinearity. Its strength is influenced by the presence of the
mechanical mode and d... | 1611.03238v1 |
2016-11-14 | Chimera states in nonlocally coupled phase oscillators with biharmonic interaction | Chimera states, which consist of coexisting domains of coherent and
incoherent parts, have been observed in a variety of systems. Most of previous
works on chimera states have taken into account specific form of interaction
between oscillators, for example sinusoidal coupling or diffusive coupling.
Here, we investigate... | 1611.04232v1 |
2016-11-17 | Stellar cooling bounds on new light particles: plasma mixing effects | Strong constraints on the coupling of new light particles to the Standard
Model (SM) arise from their production in the hot cores of stars, and the
effects of this on stellar cooling. For new light particles which have an
effective in-medium mixing with the photon, plasma effects can result in
parametrically different ... | 1611.05852v3 |
2016-11-22 | Probing phase coupling between two spin-torque nano-oscillators with external source | Phase coupling between auto-oscillators is central for achieving coherent
responses such as synchronization. Here we present an experimental approach to
probe it in the case of two dipolarly coupled spin-torque vortex
nano-oscillators using an external microwave field. By phase-locking one
oscillator to the microwave f... | 1611.07321v2 |
2016-11-24 | Parity- and Time Reversal-Violating Pion Nucleon Couplings: Higher Order Chiral Matching Relations | Parity- and time reversal-violating (PVTV) pion-nucleon couplings govern the
magnitude of long-range contributions to nucleon and atomic electric dipole
moments. When these couplings arise from chiral symmetry-breaking CP-violating
operators, such as the QCD $\theta$-term or quark chromoelectric dipole
moments, one may... | 1611.08063v2 |
2016-11-24 | Optical Schrödinger Cat States in One Mode and two Coupled-Modes Subject to Environments | Taking the decoherence into account, we investigate nonclassical features of
the optical Schr\"odinger cat states in one mode and two coupled-modes systems
with two-photon driving. In the one mode system, the relationship between the
Schr\"odinger cat states and the system parameters is derived. We observe that
in the ... | 1611.08146v2 |
2016-11-25 | Analog quantum simulation of the Rabi model in the ultra-strong coupling regime | The quantum Rabi model describes the fundamental mechanism of light-matter
interaction. It consists of a two-level atom or qubit coupled to a quantized
harmonic mode via a transversal interaction. In the weak coupling regime, it
reduces to the well-known Jaynes-Cummings model by applying a rotating wave
approximation (... | 1611.08404v2 |
2017-04-10 | Diffusion dynamics and synchronizability of hierarchical products of networks | The hierarchical product of networks represents a natural tool for building
large networks out of two smaller subnetworks: a primary subnetwork and a
secondary subnetwork. Here we study the dynamics of diffusion and
synchronization processes on hierarchical products. We apply techniques
previously used for approximatin... | 1704.02834v3 |
2017-04-14 | Approaching ultra-strong coupling in Transmon circuit-QED using a high-impedance resonator | In this experiment, we couple a superconducting Transmon qubit to a
high-impedance $645\ \Omega$ microwave resonator. Doing so leads to a large
qubit-resonator coupling rate $g$, measured through a large vacuum Rabi
splitting of $2g\simeq 910$ MHz. The coupling is a significant fraction of the
qubit and resonator oscil... | 1704.04421v1 |
2017-04-17 | Unconventional next nearest neighbor resonance coupling and states flipping mechanism in degenerate optical microcavities | We report a specially configured non-Hermitian optical microcavity, imposing
spatially imbalanced gain-loss profile, to host an exclusively proposed next
nearest neighbor resonances coupling scheme. Adopting scattering matrix
(S-matrix) formalism, the effect of interplay between such proposed resonance
interactions and... | 1704.04951v1 |
2017-04-19 | Strong coupling corrections in quantum thermodynamics | Quantum systems strongly coupled to many-body systems equilibrate to the
reduced state of a global thermal state, deviating from the local thermal state
of the system as it occurs in the weak-coupling limit. Taking this insight as a
starting point, we study the thermodynamics of systems strongly coupled to
thermal bath... | 1704.05864v2 |
2017-04-26 | Room-temperature Strong Coupling of Au Nanorod-WSe2 Heterostructures | All-solid-state strong light-matter coupling systems with large vacuum Rabi
splitting are great important for quantum information application, such as
quantum manipulation, quantum information storage and processing. The monolayer
transition metal dichalcogenides (TMDs) have been explored as excellent
candidates for th... | 1704.08094v1 |
2017-12-31 | Higgs Pair Production as a Signal of Enhanced Yukawa Couplings | We present a non-trivial correlation between the enhancement of the
Higgs-fermion couplings and the Higgs pair production cross section in two
Higgs doublet models with a flavour symmetry. This symmetry suppresses
flavour-changing neutral couplings of the Higgs boson and allows for a partial
explanation of the hierarch... | 1801.00363v2 |
2018-01-09 | Experimental Observation of Strong Coupling Between an Epsilon-Near-Zero Mode in a Deep Subwavelength Nanofilm and a Gap Plasmon Mode | Strong coupling is a phenomenon which occurs when the interaction between two
resonance systems is so strong that the oscillatory energy exchange between
them exceeds all dissipative loss channels. Each resonance can then no longer
be described individually but only as a part of the coupled, hybrid system.
Here, we sho... | 1801.03139v1 |
2018-01-10 | Rate equation analysis and non-Hermiticity in coupled semiconductor laser arrays | Optically-coupled semiconductor laser arrays are described by coupled rate
equations. The coupled mode equations and carrier densities are included in the
analysis, which inherently incorporate the carrier-induced nonlinearities
including spatial hole burning and amplitude-phase coupling. We solve the
steady-state coup... | 1801.03554v3 |
2018-01-15 | Noise Sharing and Mexican Hat Coupling in a Stochastic Neural Field | A diffusion-type coupling operator biologically significant in neuroscience
is a difference of Gaussian functions (Mexican Hat operator) used as a
spatial-convolution kernel. We are interested in pattern formation by
\emph{stochastic} neural field equations, a class of space-time stochastic
differential-integral equati... | 1801.04631v2 |
2018-01-27 | Hidden Symmetry of Flexoelectric Coupling | Considering the importance of the flexoelectric coupling for the physical
understanding of the gradient-driven couplings in mesoscale and nanoscale
solids, one has to determine its full symmetry and numerical values. The
totality of available experimental and theoretical information about the
flexocoupling tensor symme... | 1801.09129v2 |
2018-08-21 | Influence of electron-phonon coupling on low temperature phases of metallic single-wall carbon nanotubes | We investigate the effect of electron-phonon coupling on low temperature
phases in metallic single-wall carbon nanotubes. We obtain low-temperature
phase diagrams of armchair and zigzag type nanotubes with screened interactions
with a weak-coupling renormalization group approach. In the absence of
electron-phonon coupl... | 1808.06852v2 |
2019-06-01 | U-Slot Patch Principle and Design Methodology Using Characteristic Mode Analysis and Coupled Mode Theory | Patch antennas incorporating a U-shaped slot are well-known to have
relatively large (about 30%) impedance bandwidths. This work uses
Characteristic Mode Analysis to explain the impedance behavior of a classic
U-slot patch geometry in terms of Coupled Mode Theory and shows the relevant
modes are in-phase and anti-phase... | 1906.00252v3 |
2019-06-06 | A dual process for the coupled Wright-Fisher diffusion | The coupled Wright-Fisher diffusion is a multi-dimensional Wright-Fisher
diffusion for multi-locus and multi-allelic genetic frequencies, expressed as
the strong solution to a system of stochastic differential equations that are
coupled in the drift, where the pairwise interaction among loci is modelled by
an inter-loc... | 1906.02668v1 |
2019-06-12 | Identification of Motor Parameters on Coupled Joints | The estimation of the motor torque and friction parameters are crucial for
implementing an efficient low level joint torque control. In a set of coupled
joints, the actuators torques are mapped to the output joint torques through a
coupling matrix, such that the motor torque and friction parameters appear
entangled fro... | 1906.05070v1 |
2019-06-13 | Spiraling String in Gauss-Bonnet Geometry | In this paper, we consider a spiraling string falling in the bulk with
Gauss$-$Bonnet geometry that is holographically dual to a heavy particle
rotating through a hot plasma at finite coupling. One finds such interesting
simple problem provides a novel perspective on different channels of the energy
loss in the corresp... | 1906.11621v1 |
2019-06-27 | Dark sectors with dynamical coupling | Coupled dark matter-dark energy scenarios are modeled via a dimensionless
parameter $\xi$, which controls the strength of their interaction. While this
coupling is commonly assumed to be constant, there is no underlying physical
law or symmetry that forbids a time-dependent $\xi$ parameter. The most general
and complet... | 1906.11697v2 |
2019-06-30 | Intrinsic Spin Hall Effect with Spin-Tensor-Momentum Coupling | We derive the spin continuity equation by using the Noether's theorem. A new
type of spin-tensor Hall current is found in the continuity equation. The
spin-tensor Hall current is originating from the coupling of the spin-tensor
and the momentum. The intrinsic spin Hall effect in the two-dimensional fermion
model with t... | 1907.00319v2 |
2019-07-08 | Dynamical equivalence between Kuramoto models with first- and higher-order coupling | The Kuramoto model with high-order coupling has recently attracted some
attention in the field of coupled oscillators in order, for instance, to
describe clustering phenomena in sets of coupled agents. Instead of considering
interactions given directly by the sine of oscillators' angle differences, the
interaction is g... | 1907.03699v3 |
2019-07-29 | Shear viscosity and Strong-Coupling Corrections in the BCS-BEC crossover Regime of an Ultracold Fermi Gas | We theoretically investigate the shear viscosity $\eta$ in the BCS-BEC
crossover regime of an ultracold Fermi gas with a Feshbach resonance. Within
the framework of the strong-coupling self-consistent $T$-matrix approximation,
we examine how a strong pairing interaction associated with a Feshbach
resonance affects this... | 1907.12414v1 |
2019-10-17 | The Stability and Dynamics of Localized Spot Patterns for a Bulk-Membrane Coupled Brusselator Model | We consider a bulk-membrane-coupled partial differential equation in which a
single diffusion equation posed within the unit ball is coupled to a
two-component reaction diffusion equation posed on the bounding unit sphere
through a linear Robin boundary condition. Specifically, within the bulk we
consider a process of ... | 1910.08128v1 |
2020-01-01 | Stability of Hybrid Higgs Inflation | Hybrid Higgs inflation model is a hybrid type of the so-called Higgs
inflation model with the conventional non-minimal $\xi$ coupling to a scalar
curvature $R$ and new Higgs inflation model with the derivative coupling to the
Einstein curvature tensor $G_{\mu\nu}$. This model can explain all possible
value of the tenso... | 2001.00154v1 |
2019-12-13 | Spiral wave chimeras for coupled oscillators with inertia | We report the appearance and the metamorphoses of spiral wave chimera states
in coupled phase oscillators with inertia. First, when the coupling strength is
small enough, the system behavior resembles classical two-dimensional (2D)
Kuramoto-Shima spiral chimeras with bell-shape frequency characteristic of the
incoheren... | 2001.02167v2 |
2020-01-11 | Continuum modelling of stress diffusion interactions in an elastoplastic medium in the presence of geometric discontinuity | Chemo-mechanical coupled systems have been a subject of interest for many
decades now. Previous attempts to solve such models have mainly focused on
elastic materials without taking into account the plastic deformation beyond
yield, thus causing inaccuracies in failure calculations. This paper aims to
study the effect ... | 2001.04818v1 |
2020-01-21 | Low-loss, high-bandwidth fiber-to-chip coupling using capped adiabatic tapered fibers | We demonstrate adiabatically tapered fibers terminating in sub-micron tips
that are clad with a higher-index material for coupling to an on-chip
waveguide. This cladding enables coupling to a high-index waveguide without
losing light to the buried oxide. A technique to clad the tip of the tapered
fiber with a higher-in... | 2002.00729v1 |
2020-02-04 | Model independent study for the anomalous $W^+W^-γ$ couplings at the future lepton-hadron colliders | The triple gauge couplings are completely defined by the non-Abelian gauge
nature of the Standard Model, precision measurements of these couplings at the
present and future colliders in this way provide a substantial opportunity to
test the gauge structure of the Standard Model. Also, measurements of these
couplings ar... | 2002.01445v3 |
2020-02-10 | Synchronization of Coupled Kuramoto Oscillators under Resource Constraints | A fundamental understanding of synchronized behavior in multi-agent systems
can be acquired by studying analytically tractable Kuramoto models. However,
such models typically diverge from many real systems whose dynamics evolve
under non-negligible resource constraints. Here we construct a system of
coupled Kuramoto os... | 2002.04092v2 |
2020-02-20 | Interaction between Surface Waves on Wire Lines | This paper investigates the coupling properties between surface waves on
parallel wires. Finite Element Method (FEM) based and analytical models are
developed for both single wire Sommerfeld and Goubau lines. Starting with the
Sommerfeld type wave, we derive the analytical expression based on the
assumption that the tw... | 2002.10237v2 |
2020-02-24 | Weak-to-Strong Light-Matter Coupling and Dissipative Dynamics from First Principles | Cavity-mediated light-matter coupling can dramatically alter opto-electronic
and physico-chemical properties of a molecule. Ab initio theoretical
predictions of these systems need to combine non-perturbative, many-body
electronic structure theory-based methods with cavity quantum electrodynamics
and theories of open qu... | 2002.10461v1 |
2020-03-02 | Asymmetric coupling between two quantum emitters | We study a prototypical model of two coupled two-level systems, where the
competition between coherent and dissipative coupling gives rise to a rich
phenomenology. In particular, we analyze the case of asymmetric coupling, as
well as the limiting case of chiral (or one-way) coupling. We investigate
various quantum opti... | 2003.01050v2 |
2020-03-04 | Parametrisations of relativistic energy density functionals with tensor couplings | The relativistic density functional with minimal density dependent
nucleon-meson couplings for nuclei and nuclear matter is extended to include
tensor couplings of the nucleons to the vector mesons. The dependence of the
minimal couplings on either vector or scalar densities is explored. New
parametrisations are obtain... | 2003.02085v2 |
2020-03-06 | Worldsheet (anti)instanton bound states in type II on $T^2$ | The 1/8 BPS $D^6\mathcal{R}^4$ coupling in type II string theory compactified
on $T^2$ receives contributions from worldsheet instantons and anti-instantons
wrapping the $T^2$, up to genus three in string perturbation theory. These
involve contributions separately from bound states of instantons and
anti-instantons, wh... | 2003.03301v2 |
2020-03-12 | Polarization as a tuning parameter for Floquet engineering: magnetism in the honeycomb, square, and triangular Mott insulators | Magnetic exchange couplings can be tuned by coupling to periodic light, where
the frequency and amplitude are typically varied: a process known as Floquet
engineering. The polarization of the light is also important, and in this
paper, we show how different polarizations, including several types of
unpolarized light, c... | 2003.05933v2 |
2020-03-15 | Guaranteed convergence for a class of coupled-cluster methods based on Arponen's extended theory | A wide class of coupled-cluster methods is introduced, based on Arponen's
extended coupled-cluster theory. This class of methods is formulated in terms
of a coordinate transformation of the cluster operators. The mathematical
framework for the error analysis of coupled-cluster methods based on Arponen's
bivariational p... | 2003.06796v1 |
2020-03-16 | Relativity and Diversity of Strong Coupling to Measured Subsystems | The strong coupling between two subsystems consisting of quantum emitters and
photonic modes, at which the level splitting of mixed quantum states occurs,
has been a central subject of quantum physics and nanophotonics due to various
important applications. The spectral Rabi-splitting of photon emission or
absorption h... | 2003.06982v1 |
2020-03-23 | Spin-orbit-coupling-assisted roton softening and superstripes in a Rydberg-dressed Bose-Einstein Condensate | Rotons can exist in ultracold atomic gases either with long-range
interactions or with spin-orbitcoupled dispersions. We find that two different
kinds of rotons coexist in a joint system combining long-range interactions and
spin-orbit coupling. One roton originates from spin-orbit coupling and two
others come from lon... | 2003.10090v2 |
2020-04-01 | Two-loop renormalization of the matter superfields and finiteness of ${\cal N}=1$ supersymmetric gauge theories regularized by higher derivatives | The two-loop anomalous dimension of the chiral matter superfields is
calculated for a general ${\cal N}=1$ supersymmetric gauge theory regularized
by higher covariant derivatives. We obtain both the anomalous dimension defined
in terms of the bare couplings, and the one defined in terms of the
renormalized couplings fo... | 2004.00330v2 |
2020-04-21 | Coupling-decoupling of conducting topological surface states in thick Bi$_2$Se$_3$ single crystals | Sensitive ac susceptibility measurements of a topological insulator,
Bi$_2$Se$_3$ single crystal, using mutual two coil inductance technique (Ref.
32) shows coupling and decoupling of high conducting surface states. The
coupling of the surface states exists upto thickness of 70 microns, which is
much larger than the di... | 2004.09728v1 |
2020-04-22 | Linear analytical approach to dispersive, external and intrinsic dissipative couplings in optomechanical systems | We present a theoretical study of optomechanical systems in which the
mechanical resonator modulates both the resonant frequency (dispersive
coupling) and the decay rates (dissipative coupling) of the optical cavity. We
extend the generic dispersive framework to a more general case in which the
dissipative coupling is ... | 2004.10451v2 |
2020-04-28 | Constraints on CP-odd ALP couplings from EDM limits of fermions | We discuss constraints on soft CP-violating couplings of axion-like particles
with photon and fermions by using data on electric dipole moments of Standard
Model particles. In particular, for the ALP leptophilic scenario we derive
bounds on CP-odd ALP-photon-photon coupling from data of the {\tt ACME}
Collaboration on ... | 2004.13656v4 |
2020-05-05 | Nonuniformly hyperbolic systems arising from coupling of chaotic and gradient-like systems | We investigate dynamical systems obtained by coupling two maps, one of which
is chaotic and is exemplified by an Anosov diffeomorphism, and the other is of
gradient type and is exemplified by a N-pole-to-S-pole map of the circle.
Leveraging techniques from the geometric and ergodic theories of hyperbolic
systems, we an... | 2005.02199v1 |
2020-05-08 | Neutrino Mixing by modifying the Yukawa coupling structure of constrained sequential dominance | In the constrained sequential dominance (CSD), tri-bimaximal mixing (TBM)
pattern in the neutrino sector has been explained, by proposing a certain
Yukawa coupling structure for the right-handed neutrinos of the model. However,
from the current experimental data it is known that the values of neutrino
mixing angles are... | 2005.04023v2 |
2020-05-10 | Quantum spin liquids in a square lattice subject to an Abelian flux | We report that a possible Z2 quantum spin liquid (QSL) can be observed in a
new class of frustrated system: spinor bosons subject to a pi flux in a square
lattice. We construct a new class of Ginsburg-Landau (GL) type of effective
action to classify possible quantum or topological phases at any coupling
strengths. It c... | 2005.04695v1 |
2020-05-21 | Characterization of Single-Mode Fiber Coupling at the Large Binocular Telescope | Optimizing on-sky single-mode fiber (SMF) injection is an essential part of
developing precise Doppler spectrometers and new astrophotonics technologies.
We installed and tested a prototype SMF injection system at the Large Binocular
Telescope (LBT) in April 2016. The fiber injection unit was built as part of
the de-ri... | 2005.10737v1 |
2020-05-22 | Designs toward synchronization of optical limit cycles with coupled silicon photonic crystal microcavities | A driven high-Q Si microcavity is known to exhibit limit cycle oscillation
originating from carrier-induced and thermo-optic nonlinearities. We propose a
novel nanophotonic device to realize synchronized optical limit cycle
oscillations with coupled silicon (Si) photonic crystal (PhC) microcavities.
Here, coupled limit... | 2005.11127v3 |
2020-05-27 | Rydberg spectrum of a single trapped Ca$^+$ ion: A Floquet analysis | We compute the Rydberg spectrum of a single Ca$^+$ ion in a Paul trap by
incorporating various internal and external coupling terms of the ion to the
trap in the Hamiltonian. The coupling terms include spin-orbit coupling in
Ca$^+$, charge (electron and ionic core) coupling to the radio frequency and
static fields, ion... | 2005.13659v1 |
2020-07-09 | Coupling interlayer excitons to whispering gallery modes in van der Waals heterostructures | Van der Waals heterostructures assembled from two-dimensional materials offer
a promising platform to engineer structures with desired optoelectronic
characteristics. Here we use waveguide-coupled disk resonators made of
hexagonal boron nitride (h-BN) to demonstrate cavity-coupled emission from
interlayer excitons of a... | 2007.04886v2 |
2020-07-17 | Dynamical blockade in a bosonic Josephson junction using optimal coupling | In this article we use time-dependent Josephson coupling to enhance
unconventional photon blockade in a system of two coupled nonlinear bosonic
modes which are initially loaded with weakly populated coherent states, so the
evolution is restricted to the manifold of up to two field quanta. Using
numerical optimal contro... | 2007.09111v1 |
2020-07-19 | Affine gravitational scenario for dark matter decay | Since the current evidence of its existence is revealed only through its
gravitational influence, the way dark matter couples to gravity must be then of
primary importance. Here, unlike the standard model sector which is typically
coupled to metric, dark matter is supposed to couple only to spacetime affine
connection ... | 2007.09681v2 |
2020-07-22 | Coupling between guided modes of two parallel nanofibers | We study the coupling between the fundamental guided modes of two identical
parallel nanofibers analytically and numerically. We calculate the coefficients
of directional coupling, butt coupling, and mode energy changes as functions of
the fiber radius, the light wavelength, and the fiber separation distance. We
show t... | 2007.11311v1 |
2020-07-28 | High-Order Phase Reduction for Coupled Oscillators | We explore the phase reduction in networks of coupled oscillators in the
higher orders of the coupling parameter. For coupled Stuart-Landau oscillators,
where the phase can be introduced explicitly, we develop an analytic
perturbation procedure to allow for the obtaining of the higher-order
approximation explicitly. We... | 2007.14077v1 |
2020-07-28 | Photon blockade in a double-cavity optomechanical system with nonreciprocal coupling | Photon blockade is an effective way to generate single photon, which is of
great significance in quantum state preparation and quantum information
processing. Here we investigate the statistical properties of photons in a
double-cavity optomechanical system with nonreciprocal coupling, and explore
the photon blockade i... | 2007.14091v1 |
2020-07-29 | Chaotic motion of scalar particle coupling to Chern-Simons invariant in Kerr black hole spacetime | We present firstly the equation of motion for the test scalar particle
coupling to the Chern-Simons invariant in Kerr black hole spacetime by the
short-wave approximation. We have analyzed the dynamical behaviors of the test
coupled particles by applying techniques including Poincar\'e sections, fast
Lyapunov exponent ... | 2007.14575v2 |
2020-08-06 | Graphene resistivity in diffusive limit due to scalar and vector potential electron-phonon scattering | We calculate the contribution of unscreened and screened scalar and vector
potential electron acoustic phonon coupling to resistivity in disordered
graphene through Keldysh Greens function method within the diffusive limit. We
obtain analytical results in the asymptotic limits of clean and strong
impurities for both DP... | 2008.02620v1 |
2020-08-17 | Chimera-like behavior in a heterogeneous Kuramoto model: the interplay between the attractive and repulsive coupling | Interaction within an ensemble of coupled nonlinear oscillators induces a
variety of collective behaviors. One of the most fascinating is a chimera state
which manifests the coexistence of spatially distinct populations of coherent
and incoherent elements. Understanding of the emergent chimera behavior in
controlled ex... | 2008.07182v1 |
2020-08-24 | Theory and Implementation of a Novel Stochastic Approach to Coupled Cluster | We present a detailed discussion of our novel diagrammatic coupled cluster
Monte Carlo (diagCCMC) [Scott et al. J. Phys. Chem. Lett. 2019, 10, 925]. The
diagCCMC algorithm performs an imaginary-time propagation of the
similarity-transformed coupled cluster Schr\"odinger equation. Imaginary-time
updates are computed by ... | 2008.10514v2 |
2020-08-25 | Helical magnetic fields from Riemann coupling | We study the inflationary generation of helical magnetic fields from the
Riemann coupling with the electromagnetic field. Most models in the literature
introduce non-minimal coupling to the electromagnetic fields with a scalar
field, hence, breaking the conformal invariance. In this work, we show that
non-minimal coupl... | 2008.10825v2 |
2020-10-02 | Coupled Cluster Externally Corrected by Adaptive Configuration Interaction | An externally corrected coupled cluster (CC) method, where an adaptive
configuration interaction (ACI) wave function provides the external cluster
amplitudes, named ACI-CC, is presented. By exploiting the connection between
configuration interaction and coupled cluster through cluster analysis, the
higher-order T3 and ... | 2010.01093v1 |
2020-10-08 | Spin-orbit coupling induced splitting of Yu-Shiba-Rusinov states in antiferromagnetic dimers | Magnetic atoms coupled to the Cooper pairs of a superconductor induce
Yu-Shiba-Rusinov states (in short Shiba states). In the presence of
sufficiently strong spin-orbit coupling, the bands formed by hybridization of
the Shiba states in ensembles of such atoms can support low-dimensional
topological superconductivity wi... | 2010.04031v1 |
2020-10-26 | Enhancement of the optomechanical coupling and Kerr nonlinearity using the Josephson Capacitance of Cooper-pair box | We propose a scheme for enhancing the optomechanical coupling between
microwave and mechanical resonators by up to seven orders of magnitude to the
ultrastrong coupling limit in a circuit optomechanical setting. The tripartite
system considered here consists of a Josephson junction Cooper-pair box that
mediates the cou... | 2010.13493v2 |
2020-10-28 | Strong coupling of quantized spin waves in ferromagnetic bilayers | We formulate a strong-coupling theory for perpendicular standing spin waves
(PSSWs) in ferromagnetic bilayers with the interlayer exchange coupling (IEC).
Employing the Hoffmann boundary condition and the energy-flow continuity across
the interface, we show that the PSSWs are still quantized but with non-integral
quant... | 2010.14981v2 |
2020-10-21 | Important Influence of Entrance Channel Reorientation Coupling on Proton Stripping | While it is well established that the ground state reorientation coupling can
have a significant influence on the elastic scattering of deformed nuclei, the
effect of such couplings on transfer channels has been much less well
investigated. In this letter we demonstrate that the 208Pb(7Li,6He)209Bi proton
stripping rea... | 2010.15587v1 |
2020-11-09 | Recovery Coupling in Multilayer Networks | The increased complexity of infrastructure systems has resulted in critical
interdependencies between multiple networks---communication systems require
electricity, while the normal functioning of the power grid relies on
communication systems. These interdependencies have inspired an extensive
literature on coupled mu... | 2011.04623v1 |
2020-11-17 | Field dependence of the Yukawa coupling in the three flavor quark-meson model | We investigate the renormalization group flow of the field-dependent Yukawa
coupling in the framework of the three flavor quark-meson model. In a
conventional perturbative calculation, given that the field rescaling is
trivial, the Yukawa coupling does not get renormalized at the one-loop level if
it is coupled to an e... | 2011.08387v3 |
2021-01-05 | Pomeranchuk instabilities in holographic metals | We develop a method to detect instabilities leading to nematic phases in
strongly coupled metallic systems. We do so by adapting the well-known
Pomeranchuk technique to a weakly coupled system of fermions in a curved
asymptotically AdS bulk. The resulting unstable modes are interpreted as
corresponding to instabilities... | 2101.01825v2 |
2021-01-17 | Strong coupling between excitons and magnetic dipole quasi-bound states in the continuum in WS$_2$-TiO$_2$ hybrid metasurfaces | Enhancing the light-matter interactions in two-dimensional materials via
optical metasurfaces has attracted much attention due to its potential to
enable breakthrough in advanced compact photonic and quantum information
devices. Here, we theoretically investigate a strong coupling between excitons
in monolayer WS$_2$ a... | 2101.06577v1 |
2021-01-26 | Enhancing the spin-photon coupling with a micromagnet | Hybrid quantum systems involving solid-state spins and superconducting
microwave cavities play a crucial role in quantum science and technology, but
improving the spin-photon coupling at the single quantum level remains
challenging in such systems. Here, we propose a simple technique to strongly
couple a single solid-s... | 2101.10600v1 |
2021-03-08 | Structural Coupling for Microservices | Cloud-native Applications are 'distributed, elastic and horizontal-scalable
systems composed of (micro)services which isolate states in a minimum of
stateful components'. Hence, an important property is to ensure a low coupling
and a high cohesion among the (micro)services composing the cloud-native
application. Loosel... | 2103.04674v1 |
2021-03-08 | Stability analysis of reaction-diffusion PDEs coupled at the boundaries with an ODE | This paper addresses the derivation of generic and tractable sufficient
conditions ensuring the stability of a coupled system composed of a
reaction-diffusion partial differential equation (PDE) and a finite-dimensional
linear time invariant ordinary differential equation (ODE). The coupling of the
PDE with the ODE is ... | 2103.04775v2 |
2021-03-12 | Floating tunable coupler for scalable quantum computing architectures | We propose a floating tunable coupler that does not rely on direct
qubit-qubit coupling capacitances to achieve the zero-coupling condition. We
show that the polarity of the qubit-coupler couplings can be engineered to
offset the otherwise constant qubit-qubit coupling and attain the zero-coupling
condition when the co... | 2103.07030v2 |
2021-03-15 | Resonant Raman scattering of single molecules under strong cavity coupling and ultrastrong optomechanical coupling in plasmonic resonators: phonon-dressed polaritons | Plasmonic dimer cavities can induce extreme electric-field hot spots that
allow one to access ultrastrong coupling regimes using Raman-type spectroscopy
on single vibrating molecules. Using a generalized master equation, we study
resonant Raman scattering in the strong coupling regime of cavity-QED, when
also in the vi... | 2103.08670v3 |
2021-03-15 | Mediated interaction between polarons in a one-dimensional Bose gas | We study a weakly-interacting one-dimensional Bose gas with two impurities
coupled locally to the boson density. We derive analytical results for the
induced interaction between the impurities at arbitrary coupling and separation
$r$. At $r\lesssim \xi$, where $\xi$ denotes the healing length of the Bose
gas, the inter... | 2103.08772v1 |
2021-03-17 | Identification of materials with strong magneto-structural coupling using computational high-throughput screening | Important phenomena such as magnetostriction, magnetocaloric, and
magnetoelectric effects arise from, or could be enhanced by, the coupling of
magnetic and structural degrees of freedom. The coupling of spin and lattice
also influence transport and structural properties in magnetic materials in
particular around phase ... | 2103.09652v1 |
2021-03-19 | Strong light-matter coupling in MoS$_2$ | Polariton-based devices require materials where light-matter coupling under
ambient conditions exceeds losses, but our current selection of such materials
is limited. Here we measured the dispersion of polaritons formed by the $A$ and
$B$ excitons in thin MoS$_2$ slabs by imaging their optical near fields. We
combined ... | 2103.10867v1 |
2021-03-25 | Tomography in the presence of stray inter-qubit coupling | Tomography is an indispensable part of quantum computation as it enables
diagnosis of a quantum process through state reconstruction. Existing
tomographic protocols are based on determining expectation values of various
Pauli operators which typically require single-qubit rotations. However, in
realistic systems, qubit... | 2103.13611v1 |
2021-03-30 | Dissipative Topological Phase Transition with Strong System-Environment Coupling | A primary motivation for studying topological matter regards the protection
of topological order from its environment. In this work, we study a topological
emitter array coupled to an electromagnetic environment. The photon-emitter
coupling produces nonlocal interactions between emitters. Using periodic
boundary condit... | 2103.16445v2 |
2021-04-05 | Collective Synchronous Spiking in a Brain Network of Coupled Nonlinear Oscillators | A network of propagating nonlinear oscillatory modes (waves) in the human
brain is shown to generate collectively synchronized spiking activity
(hypersynchronous spiking) when both amplitude and phase coupling between modes
are taken into account. The nonlinear behavior of the modes participating in
the network are the... | 2104.02171v1 |
2021-04-09 | Optimal transport couplings of Gibbs samplers on partitions for unbiased estimation | Computational couplings of Markov chains provide a practical route to
unbiased Monte Carlo estimation that can utilize parallel computation. However,
these approaches depend crucially on chains meeting after a small number of
transitions. For models that assign data into groups, e.g. mixture models, the
obvious approac... | 2104.04514v2 |
2021-04-11 | Couplings for Multinomial Hamiltonian Monte Carlo | Hamiltonian Monte Carlo (HMC) is a popular sampling method in Bayesian
inference. Recently, Heng & Jacob (2019) studied Metropolis HMC with couplings
for unbiased Monte Carlo estimation, establishing a generic parallelizable
scheme for HMC. However, in practice a different HMC method, multinomial HMC,
is considered as ... | 2104.05134v1 |
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