publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
|---|---|---|---|
2020-12-10 | Dephasing-assisted entanglement in a system of strongly coupled qubits | Creation of entangled states of quantum systems with low decoherence rates is
a cornerstone in practical implementation of quantum computations. Processes of
separate dephasing in each qubit in experimentally feasible systems is commonly
accepted to destroy entanglement. In this work, we consider a system of two
strong... | 2012.05650v1 |
2020-12-11 | Hybrid microwave-optical scanning probe for addressing solid-state spins in nanophotonic cavities | Spin-photon interfaces based on solid-state atomic defects have enabled a
variety of key applications in quantum information processing. To maximize the
light-matter coupling strength, defects are often placed inside nanoscale
devices. Efficiently coupling light and microwave radiation into these
structures is an exper... | 2012.06080v1 |
2020-12-16 | Quantum estimation of coupling strengths in driven-dissipative optomechanics | We exploit local quantum estimation theory to investigate the measurement of
linear and quadratic coupling strengths in a driven-dissipative optomechanical
system. For experimentally realistic values of the model parameters, we find
that the linear coupling strength is considerably easier to estimate than the
quadratic... | 2012.08876v1 |
2020-12-16 | Statistical coupling constants from hidden sector entanglement | String theory predicts that the couplings of Nature descend from dynamical
fields. All known string-motivated particle physics models also come with a
wide range of possible extra sectors. It is common to posit that such moduli
are frozen to a background value, and that extra sectors can be nearly
completely decoupled.... | 2012.09182v3 |
2020-12-17 | Quantum simulation of a three-mode optomechanical system based on the Fredkin-type interaction | The realization of multimode optomechanical interactions in the single-photon
strong-coupling regime is a desired task in cavity optomechanics, but it
remains a challenge in realistic physical systems. In this work, we propose a
reliable scheme to simulate a three-mode optomechanical system working in the
single-photon... | 2012.09529v2 |
2020-12-21 | Stacking enabled strong coupling of atomic motion to interlayer excitons in van der Waals heterojunction photodiodes | We reveal stacking-induced strong coupling between atomic motion and
interlayer excitons through photocurrent measurements of WSe$_2$/MoSe$_2$
heterojunction photodiodes. Strong coupling manifests as pronounced periodic
sidebands in the photocurrent spectrum in frequency windows close to the
interlayer exciton resonanc... | 2012.11688v1 |
2020-12-21 | Coherent mechanical noise cancellation and cooperativity competition in optomechanical arrays | Studying the interplay between multiple coupled mechanical resonators is a
promising new direction in the field of optomechanics. Understanding the
dynamics of the interaction can lead to rich new effects, such as enhanced
coupling and multi-body physics. In particular, multi-resonator optomechanical
systems allow for ... | 2012.11733v2 |
2000-06-08 | Directed Percolation has Colors and Flavors | A model of directed percolation processes with colors and flavors that is
equivalent to a population model with many species near their extinction
thresholds is presented. We use renormalized field theory and demonstrate that
all renormalizations needed for the calculation of the universal scaling
behavior near the mul... | 0006129v1 |
2000-06-26 | Flow equation approach to the sine-Gordon model | A continuous sequence of infinitesimal unitary transformations is used to
diagonalize the quantum sine-Gordon model for \beta^2\in(2\pi,\infty). This
approach can be understood as an extension of perturbative scaling theory since
it links weak- to strong-coupling behavior in a systematic expansion: a small
expansion pa... | 0006403v1 |
2012-05-01 | Coherent Pattern Prediction in Swarms of Delay-Coupled Agents | We consider a general swarm model of self-propelling agents interacting
through a pairwise potential in the presence of noise and communication time
delay. Previous work [Phys. Rev. E 77, 035203(R) (2008)] has shown that a
communication time delay in the swarm induces a pattern bifurcation that
depends on the size of t... | 1205.0195v1 |
2012-05-02 | Slow Manifolds for Multi-Time-Scale Stochastic Evolutionary Systems | This article deals with invariant manifolds for infinite dimensional random
dynamical systems with different time scales. Such a random system is generated
by a coupled system of fast-slow stochastic evolutionary equations. Under
suitable conditions, it is proved that an exponentially tracking random
invariant manifold... | 1205.0333v2 |
2012-05-03 | Current-induced torques in textured Rashba ferromagnets | In systems with small spin-orbit coupling, current-induced torques on the
magnetization require inhomogeneous magnetization textures. For large
spin-orbit coupling, such torques exist even without gradients in the
magnetization direction. Here, we consider current-induced torques in
ferromagnetic metals with both Rashb... | 1205.0653v1 |
2012-05-10 | 3D quaternionic condensations, Hopf invariants, and skyrmion lattices with synthetic spin-orbit coupling | We study the topological configurations of the two-component condensates of
bosons with the $3$D $\vec{\sigma}\cdot \vec{p}$ Weyl-type spin-orbit coupling
subject to a harmonic trapping potential. The topology of the condensate
wavefunctions manifests in the quaternionic representation. In comparison to
the $U(1)$ comp... | 1205.2162v3 |
2012-05-13 | Three-loop β-functions for top-Yukawa and the Higgs self-interaction in the Standard Model | We analytically compute the dominant contributions to the \beta-functions for
the top-Yukawa coupling, the strong coupling and the Higgs self-coupling as
well as the anomalous dimensions of the scalar, gluon and quark fields in the
unbroken phase of the Standard Model at three-loop level. These are mainly the
QCD and t... | 1205.2892v2 |
2012-05-14 | Naive Dimensional Analysis in Holography | Naive dimensional analysis (NDA) is a widely used ansatz to estimate coupling
constants among composite states emerging from dynamics of a strongly coupled
gauge theory. However, the validity of NDA is still unclear because of the
difficulty in calculating these quantities in strongly coupled theories. We
examine the N... | 1205.2949v2 |
2012-05-31 | Stability of the kinematically coupled β-scheme for fluid-structure interaction problems in hemodynamics | It is well-known that classical Dirichlet-Neumann loosely coupled partitioned
schemes for fluid-structure interaction (FSI) problems are unconditionally
unstable for certain combinations of physical and geometric parameters that are
relevant in hemodynamics. It was shown in \cite{causin2005added} on a simple
test probl... | 1205.6887v3 |
2017-05-03 | Coupling Polynomial Stratonovich Integrals: the two-dimensional Brownian case | We show how to build an immersion coupling of a two-dimensional Brownian
motion $(W_1, W_2)$ along with $\binom{n}{2} + n= \tfrac12n(n+1)$ integrals of
the form $\int W_1^iW_2^j \circ dW_2$, where
$j=1,\ldots,n$ and $i=0, \ldots, n-j$ for some fixed $n$. The resulting
construction is applied to the study of couplings... | 1705.01600v3 |
2017-05-05 | Non-Perturbative Electron Counting Statistics | The theory of full counting statistics allows complete characterization of
charge transport processes through nanoscale systems. The majority of existing
theoretical treatments used to obtain the current cumulants rely on
perturbative approximations with respect to either the system-bath coupling or
the electronic tunn... | 1705.02320v2 |
2017-05-10 | Agravity up to infinite energy | The self-interactions of the conformal mode of the graviton are controlled,
in dimensionless gravity theories (agravity), by a coupling $f_0$ that is not
asymptotically free. We show that, nevertheless, agravity can be a complete
theory valid up to infinite energy. When $f_0$ grows to large values, the
conformal mode o... | 1705.03896v2 |
2017-05-11 | Free-Space Quantum Electrodynamics with a single Rydberg superatom | The interaction of a single photon with an individual two-level system is the
textbook example of quantum electrodynamics. Achieving strong coupling in this
system so far required confinement of the light field inside resonators or
waveguides. Here, we demonstrate strong coherent coupling between a single
Rydberg super... | 1705.04128v2 |
2017-05-15 | Convex Coupled Matrix and Tensor Completion | We propose a set of convex low rank inducing norms for a coupled matrices and
tensors (hereafter coupled tensors), which shares information between matrices
and tensors through common modes. More specifically, we propose a mixture of
the overlapped trace norm and the latent norms with the matrix trace norm, and
then, w... | 1705.05197v2 |
2017-05-15 | Gauge invariant one-loop corrections to Higgs boson couplings in non-minimal Higgs models | We comprehensively evaluate renormalized Higgs boson couplings at one-loop
level in non-minimal Higgs models such as the Higgs Singlet Model (HSM) and the
four types of Two Higgs Doublet Models (THDMs) with a softly-broken $Z_2$
symmetry. The renormalization calculation is performed in the on-shell scheme
improved by u... | 1705.05399v2 |
2017-05-16 | Spectroscopic investigation of native defects induced electron-phonon coupling in GaN nanowires | The integration of advanced optoelectronic properties in nanoscale devices of
group III nitride can be realized by understanding the coupling of charge
carriers with optical excitations in these nanostructures. The native defect
induced electron-phonon coupling in GaN nanowires are reported using various
spectroscopic ... | 1705.05662v1 |
2017-05-16 | Theory of electron spin resonance in one-dimensional topological insulators with spin-orbit couplings | Edge/surface states often appear in a topologically nontrivial phase, when
the system has a boundary. The edge state of a one-dimensional topological
insulator is one of the simplest examples. Electron Spin Resonance (ESR) is an
ideal probe to detect and analyze the edge state for its high sensitivity and
precision. We... | 1705.05826v3 |
2017-05-22 | The effects of noise and time delay on the synchronization of the Kuramoto model in small-world networks | We study the synchronization of a small-world network of identical coupled
phase oscillators with Kuramoto interaction. First, we consider the model with
instantaneous mutual interaction and the normalized coupling constant to the
degree of each node. For this model, similar to the constant coupling studied
before, we ... | 1705.07875v1 |
2017-05-23 | Coupling of Brownian motions in Banach spaces | Consider a separable Banach space $ \mathcal{W}$ supporting a non-trivial
Gaussian measure $\mu$. The following is an immediate consequence of the theory
of Gaussian measure on Banach spaces: there exist (almost surely) successful
couplings of two $\mathcal{W}$-valued Brownian motions $ \mathbf{B}$ and
$\widetilde{\mat... | 1705.08300v1 |
2017-05-25 | Synchronization, phase slips and coherent structures in area-preserving maps | The problem of synchronization of coupled Hamiltonian systems exhibits
interesting features due to the non-uniform or mixed nature (regular and
chaotic) of the phase space. We study these features by investigating the
synchronization of unidirectionally coupled area-preserving maps coupled by the
Pecora-Carroll method.... | 1705.09075v1 |
2017-05-27 | Four-fermion interactions and the chiral symmetry breaking in an external magnetic field | We investigate the chiral symmetry and its spontaneous breaking at finite
temperature and in an external magnetic field with four-fermion interactions of
different channels. Quantum and thermal fluctuations are included within the
functional renormalization group approach, and properties of the set of flow
equations fo... | 1705.09841v1 |
2017-05-28 | Vibronic coupling in C$_{60}^-$ anion revisited: Precise derivations from photoelectron spectra and DFT calculations | The vibronic coupling constants of C$_{60}^-$ are derived from the
photoelectron spectrum measured by Wang {\it et al}. [X. B. Wang, H. K. Woo,
and L. S. Wang, J. Chem. Phys., {\bf 123}, 051106 (2005).] at low temperature
with high-resolutions. We find that the couplings of the Jahn-Teller modes of
C$_{60}^-$ are weake... | 1705.09963v1 |
2017-09-01 | Quasiparticles of widely tuneable inertial mass: The dispersion relation of atomic Josephson vortices and related solitary waves | Superconducting Josephson vortices have direct analogues in ultracold-atom
physics as solitary-wave excitations of two-component superfluid Bose gases
with linear coupling. Here we numerically extend the zero-velocity Josephson
vortex solutions of the coupled Gross-Pitaevskii equations to non-zero
velocities, thus obta... | 1709.00403v2 |
2017-09-05 | ElectroWeak BaryoGenesis via Top Transport | We study electroweak baryogenesis driven by the top quark in two Higgs
doublet model that allows flavor-changing neutral Higgs couplings. Taking Higgs
sector couplings and the additional top Yukawa coupling $\rho_{tt}$ to be
$\mathcal{O}$(1), one naturally has first order electroweak phase transition
and sufficient $CP... | 1709.01262v1 |
2017-09-07 | Tunable spin pumping in exchange coupled magnetic trilayers | Magnetic thin films at ferromagnetic resonance (FMR) leak angular momentum,
which may be absorbed by adjacent layers. This phenomenon, known as spin
pumping, is manifested by an increase in the resonance linewidth ($\Delta H$),
and the closely related Gilbert damping. Another effect of this transfer of
spin currents is... | 1709.02295v1 |
2017-09-08 | Exponential and power-law renormalization in phonon-assisted tunneling | We investigate the spinless Anderson-Holstein model routinely employed to
describe the basic physics of phonon-assisted tunneling in molecular devices.
Our focus is on small to intermediate electron-phonon coupling; we complement a
recent strong coupling study [Phys.~Rev.~B {87}, 075319 (2013)]. The entire
crossover fr... | 1709.02636v2 |
2017-09-08 | Efficient approach for quantum sensing field gradients with trapped ions | We introduce quantum sensing protocol for detection spatially varying fields
by using two coupled harmonic oscillators as a quantum probe. We discuss a
physical implementation of the sensing technique with two trapped ions coupled
via Coulomb mediated phonon hopping. Our method relies on using the coupling
between the ... | 1709.02795v1 |
2017-09-19 | Amplification of the coupling strength in a hybrid quantum system | Realization of strong coupling between two different quantum systems is
important for fast transferring quantum information between them, but its
implementation is difficult in some hybrid quantum systems. Here we propose a
scheme to enhance the coupling strength between a single nitrogen-vacancy
center and a supercond... | 1709.06433v3 |
2017-09-22 | Two-Loop Renormalization Group Equations and Gauge Couplings Unification | We analize the impact of two-loop renormalization group equations on the
$SU(3)_c\times SU(2)_w\times U(1)_Y$ gauge couplings unification in various
supersymmetric theories. In general the presence of superfields in higher
representation than the doublet spoil the gauge couplings unification at
one-loop. The situation ... | 1709.07765v1 |
2017-09-22 | Effects of the temperature and magnetic-field dependent coupling on the properties of QCD matter | To reflect the asymptotic freedom in the thermal direction, a
temperature-dependent coupling was proposed in the literature. We investigate
its effect on QCD matter with and without strong magnetic fields. Compared with
the fixed coupling constant, the running coupling leads to a drastic change in
the dynamical quark m... | 1709.07773v1 |
2017-09-23 | Synchronization of coupled active rotators by common noise | We study the effect of common noise on coupled active rotators. While such a
noise always facilitates synchrony, coupling may be attractive or repulsing. We
develop an analytical approach based on a transformation to approximate
angle-action variables and averaging over fast rotations. For identical
rotators, we descri... | 1709.08058v2 |
2017-09-25 | Trilinear Higgs coupling determination via single-Higgs differential measurements at the LHC | We study one-loop effects induced by an anomalous Higgs trilinear coupling on
total and differential rates for the $H\to 4\ell$ decay and some of the main
single-Higgs production channels at the LHC, namely, VBF, $VH$, $t\bar tH$ and
$tHj$. Our results are based on a public code that calculates these effects by
simply ... | 1709.08649v2 |
2018-03-02 | Signatures of Plexcitonic States in Molecular Electroluminescence | We develop a quantum master equation (QME) approach to investigate the
electroluminesence (EL) of molecules confined between metallic electrodes and
coupled to quantum plasmonic modes. Within our general state-based framework,
we describe electronic tunneling, vibrational damping, environmental dephasing,
and the quant... | 1803.01012v1 |
2018-02-23 | Double inverse nanotapers for efficient light coupling to integrated photonic devices | Efficient light coupling into integrated photonic devices is of key
importance to a wide variety of applications. "Inverse nanotapers" are widely
used, in which the waveguide width is reduced to match an incident mode. Here,
we demonstrate novel, "double inverse" tapers, in which we taper both the
waveguide height, as ... | 1803.02662v1 |
2018-03-12 | Rotation-symmetry-enforced coupling of spin and angular momentum for p-orbital bosons | Intrinsic spin angular-momentum coupling of an electron has a relativistic
quantum origin with the coupling arising from charged-orbits, which does not
carry over to charge-neutral atoms. Here we propose a mechanism of spontaneous
generation of spin angular-momentum coupling with spinor atomic bosons loaded
into $p$-or... | 1803.04429v2 |
2018-03-13 | Comparative study of plasmonic antennas for strong coupling and quantum nonlinearities with single emitters | Realizing strong coupling between a single quantum emitter (QE) and an
optical cavity is of crucial importance in the context of various quantum
optical applications. While Rabi splitting of single quantum emitters coupled
to high-Q diffraction limited cavities have been reported in numerous
configurations, attaining s... | 1803.04941v1 |
2018-03-16 | Electron-mediated phonon-phonon coupling drives the vibrational relaxation of CO on Cu(100) | We bring forth a consistent theory for the electron-mediated vibrational
intermode coupling that clarifies the microscopic mechanism behind the
vibrational relaxation of adsorbates on metal surfaces. Our analysis points out
the inability of state-of-the-art nonadiabatic theories to quantitatively
reproduce the experime... | 1803.06302v1 |
2018-03-18 | Enhancement of photon blockade effect via quantum interference | We study the photon blockade effect in a coupled cavity system, which is
formed by a linear cavity coupled to a Kerr-type nonlinear cavity via a
photon-hopping interaction. We explain the physical phenomenon from the
viewpoint of the conventional and unconventional photon blockade effects. The
corresponding physical me... | 1803.06642v2 |
2018-03-21 | Probing microscopic models for system-bath interactions via parametric driving | We show that strong parametric driving of a quantum harmonic oscillator
coupled to a thermal bath allows one to distinguish between different
microscopic models for the oscillator-bath coupling. We consider a bath with an
Ohmic spectral density and a model where the system-bath interaction can be
tuned continuously bet... | 1803.07785v1 |
2018-03-24 | Chemical event chain model of coupled genetic oscillators | We introduce a stochastic model of coupled genetic oscillators in which
chains of chemical events involved in gene regulation and expression are
represented as sequences of Poisson processes. We characterize steady states by
their frequency, their quality factor and their synchrony by the oscillator
cross correlation. ... | 1803.09071v1 |
2018-03-26 | Neutron star merger GW170817 strongly constrains doubly coupled bigravity | We study the implications of the recent detection of gravitational waves
emitted by a pair of merging neutron stars and their electromagnetic
counterpart, events GW170817 and GRB170817A, on the viability of the doubly
coupled bimetric models of cosmic evolution, where the two metrics couple
directly to matter through a... | 1803.09726v2 |
2018-03-28 | Heteroclinic and homoclinic structures in the system of four identical globally coupled phase oscillators with nonpairwise interactions of phases | Systems of $N$ identical globally coupled phase oscillators can demonstrate a
multitude of complex behaviours. Such systems can have chaotic dynamics for
$N>4$ when a coupling function is biharmonic. The case $N = 4$ does not possess
chaotic attractors when the coupling is biharmonic, but has them when the
coupling inc... | 1803.10761v1 |
2018-03-30 | Interstate Vibronic Coupling Constants Between Electronic Excited States for Complex Molecules | In the construction of diabatic vibronic Hamiltonians for quantum dynamics in
the excited-state manifold of molecules, the coupling constants are often
extracted solely from information on the excited-state energies. Here, a new
protocol is applied to get access to the interstate vibronic coupling constants
at the time... | 1803.11360v1 |
2018-06-04 | Coupling charge-exchange vibrations to nucleons in a relativistic framework: effect on Gamow-Teller transitions and beta-decay half-lives | The nuclear response theory for isospin-transfer modes in the relativistic
particle-vibration coupling framework is extended to include coupling of single
nucleons to isospin-flip (charge-exchange) phonons, in addition to the usual
neutral vibrations. This new coupling introduces dynamical pion and rho-meson
exchange, ... | 1806.01409v2 |
2018-06-05 | Supersymmetry-guided method for mode selection and optimization in coupled systems | Single-mode operation of coupled systems such as optical-fiber bundles,
lattices of photonic waveguides, or laser arrays requires an efficient method
to suppress unwanted super-modes. Here, we propose a systematic
supersymmetry-based approach to selectively eliminate modes of such systems by
decreasing their lifetime r... | 1806.01882v1 |
2018-06-07 | Molecular Piston Engine with Spiking Transduction of Back-action in Hybrid Opto-mechanical Brownian Motors | We consider the Molecular Opto-mechanical systems in back-action
amplification of single molecule Raman imaging. Surface Enhanced Raman
Scattering (SERS) is mapped into the dissipative cavity opto-mechanics system
of coupled resonators. We investigate the plasmon molecular vibration
interactions in strong coupling regi... | 1806.02630v1 |
2018-06-09 | Effective Long-Range Pairing and Hopping in Topological Nanowires Weakly Coupled to $ s $-Wave Superconductors | In this Letter, we first formulate an effective theory, which generally
captures long-range proximity effects of a surface system weakly coupled to an
s-wave superconductor. The long-range proximity effects include both the
emergent long-range pairing and hopping interactions in the surface system. We
then model the Ra... | 1806.03399v1 |
2018-06-11 | Non-Perturbative One-Loop Effective Action for QED with Yukawa Couplings | We derive the one-loop effective action for scalar, pseudoscalar, and
electromagnetic fields coupled to a Dirac fermion in an extension of QED with
Yukawa couplings. Using the Schwinger proper-time formalism and zeta-function
regularization, we calculate the full non-perturbative effective action to one
loop in the con... | 1806.04040v2 |
2018-06-13 | A tight-coupling scheme sharing minimum information across a spatial interface between gyrokinetic turbulence codes | A new scheme that tightly couples kinetic turbulence codes across a spatial
interface is introduced. This scheme evolves from considerations of competing
strategies and down-selection. It is found that the use of a composite kinetic
distribution function and fields with global boundary conditions as if the
coupled code... | 1806.05251v2 |
2018-06-18 | Cavity optomagnonics with magnetic textures: coupling a magnetic vortex to light | Optomagnonic systems, where light couples coherently to collective
excitations in magnetically ordered solids, are currently of high interest due
to their potential for quantum information processing platforms at the
nanoscale. Efforts so far, both at the experimental and theoretical level, have
focused on systems with... | 1806.06727v2 |
2018-06-18 | From Klein to anti-Klein tunneling in graphene tuning the Rashba spin-orbit interaction or the bilayer coupling | We calculate the transmission coefficient for a particle crossing a potential
barrier in monolayer graphene with Rashba spin-orbit coupling and in bilayer
graphene. We show that in both the cases one can go from Klein tunneling
regime, characterized by perfect normal transmission, to anti-Klein tunneling
regime, with p... | 1806.06962v2 |
2018-06-19 | Collective conical intersections through light-matter coupling in a cavity | The ultrafast non-radiative relaxation of a molecular ensemble coupled to a
cavity mode is considered theoretically and by real-time quantum dynamics. For
equal coupling strength of single molecules to the cavity mode, the
non-radiative relaxation rate from the upper to the lower polariton states is
found to strongly d... | 1806.07252v2 |
2018-06-19 | Qubit-nonlinear-oscillator systems: from the moderate-coupling limit to the ultrastrong-coupling regime | This work aims to provide an alternative approach to modeling a two-state
system (qubit) coupled to a nonlinear oscillator. Within a single algebraic
scheme based upon the f-deformed oscillator description, hard and soft
nonlinearities are proposed to be simulated by making use of fitting algebraic
models extracted fro... | 1806.07446v1 |
2018-06-27 | Tunable spin-orbit coupling and magnetic superstripe phase in a BEC | Superstripe phases in Bose-Einstein condensates (BECs), possessing both
crystalline structure and superfluidity, opens a new avenue for exploring
exotic quantum matters---supersolids. However, conclusive detection and further
exploration of a superstripe is still challenging in experiments because of its
short period, ... | 1806.10568v2 |
2018-06-26 | Multimodal Image Denoising based on Coupled Dictionary Learning | In this paper, we propose a new multimodal image denoising approach to
attenuate white Gaussian additive noise in a given image modality under the aid
of a guidance image modality. The proposed coupled image denoising approach
consists of two stages: coupled sparse coding and reconstruction. The first
stage performs jo... | 1806.10678v1 |
2018-06-28 | Superradiant Instabilities in a Class of Scalar-Tensor Horndeski Theory | We study the superradiance effect in a class of scalar-tensor Horndeski
theory. We first study the dynamics of a massive charged scalar wave scattered
off the horizon of a Reissner-Nordstr\"om black hole which except its canonical
coupling to gravity it is also coupled kinetically to curvature. We find that a
trapping ... | 1806.11110v1 |
2018-06-28 | Wideband bright soliton frequency comb generation at optical telecommunication wavelength in a thin SiN film | Bright-soliton frequency comb generation in a thin-film silicon nitride (SiN)
microresonator at optical telecommunication wavelengths is numerically
demonstrated using our recently developed approach for dispersion-engineering
by virtue of coupling-dispersion between two coupled microresonators. By
coupling two identic... | 1806.11225v1 |
2018-06-29 | Multiferroicity and magnetoelastic coupling in alpha-Mn2O3: A binary perovskite | Multiferroics where at least two primary ferroic orders are present and
coupled in a single system constitute an important class of materials. They
attracted special consideration as they present both intriguing fundamental
physics problems and technological importance for potential multifunctional
devices. Here, we pr... | 1806.11378v1 |
2018-07-06 | Willis metamaterial on a structured beam | Bianisotropy is common in electromagnetics whenever a cross-coupling between
electric and magnetic responses exists. However, the analogous concept for
elastic waves in solids, termed as Willis coupling, is more challenging to
observe. It requires coupling between stress and velocity or momentum and
strain fields, whic... | 1807.02285v1 |
2018-07-10 | Safe Pati-Salam | We provide an asymptotically safe Pati-Salam embedding of the Standard Model.
Safety is achieved by adding to the theory gauged vector-like fermions and by
employing recently developed large number-of-flavor techniques and results. We
show that the gauge, scalar quartic and Yukawa couplings achieve an interacting
ultra... | 1807.03669v2 |
2018-07-12 | Spin-Phonon coupling parameters from maximally localized Wannier functions and first principles electronic structure: the case of durene single crystal | Spin-orbit interaction is an important vehicle for spin relaxation. At finite
temperature lattice vibrations modulate the spin-orbit interaction and thus
generate a mechanism for spin-phonon coupling, which needs to be incorporated
in any quantitative analysis of spin transport. Starting from a density
functional theor... | 1807.04579v1 |
2018-07-15 | Can Conformal and Disformal Couplings Between Dark Sectors Explain the EDGES 21cm Anomaly? | The recently announced result by EDGES points an unexpected excess in the 21
cm global brightness temperature from cosmic dawn at $z\sim 17$, potentially
indicating new phenomena beyond the $\Lambda$CDM model. A generic cosmological
model which allows conformal and disformal couplings between dark matter and
dark energ... | 1807.05541v2 |
2018-07-18 | Spin-orbit coupled soliton in a random potential | We investigate theoretically the dynamics of a spin-orbit coupled soliton
formed by a self- interacting Bose-Einstein condensate immersed in a random
potential, in the presence of an artificial magnetic field. We find that due to
the anomalous spin-dependent velocity, the synthetic Zeeman coupling can play a
critical r... | 1807.06794v2 |
2018-07-24 | Meson-baryon coupling constants of the SU(3) baryons with flavor SU(3) symmetry breaking | We investigate the strong coupling constants for the baryon octet-octet,
decuplet-octet, and decuplet-decuplet vertices with pseudoscalar mesons within
a general framework of the chiral quark-soliton model, taking into account the
effects of flavor SU(3) symmetry breaking to linear order in the expansion of
the strange... | 1807.09090v1 |
2018-07-24 | Finite temperature coupled cluster theories for extended systems | At zero temperature coupled cluster theory is widely used to predict total
energies, ground state expectation values and even excited states for molecules
and extended systems. Generalizations to finite temperature exist, however,
they are in practice several orders of magnitude more demanding compared to the
zero temp... | 1807.09687v3 |
2018-07-25 | Tuning of non-paraxial effects of the Laguerre-Gaussian beam interacting with the two-component Bose-Einstein condensates | We present the theory of microscopic interaction of the spin-orbit coupled
focused Laguerre-Gaussian (LG) beam with the two-component Bose-Einstein
condensate (BEC), composed of two hyperfine states of $^{87}$Rb in a harmonic
trap. We have shown that Raman Rabi frequency distributions over the
inter-component coupling ... | 1807.09733v2 |
2018-07-26 | Clockwork inflation with non-minimal coupling | We suggest a clockwork mechanism for a Higgs-like inflation with the
non-minimal coupling term $\xi\phi^2 R$. The seemingly unnatural ratio of
parameters, $\lambda/\xi^2 \sim 10^{-10}$ of the self quartic coupling of the
inflaton, $\lambda$, and the non-minimal coupling, $\xi$, is understood by
exponential suppression ... | 1807.09952v2 |
2018-07-27 | Mixed mode oscillations and phase locking in coupled FitzHugh-Nagumo model neurons | We study the dynamics of a low-dimensional system of coupled model neurons as
a step towards understanding the vastly complex network of neurons in the
brain. We analyze the bifurcation structure of a system of two model neurons
with unidirectional coupling as a function of two physiologically relevant
parameters: the ... | 1807.10824v1 |
2018-12-11 | Long live the Higgs portal! | In Higgs portal models of fermion dark matter, scalar couplings are
unavoidably suppressed by strong bounds from direct detection experiments. As a
consequence, thermal dark matter relics must coexist with mediators in a
compressed spectrum of dark particles. Small couplings and small mass
splittings lead to slow media... | 1812.04628v2 |
2018-12-17 | A note on a conjecture for the critical curve of a weakly coupled system of semilinear wave equations with scale-invariant lower order terms | In this note two blow-up results are proved for a weakly coupled system of
semilinear wave equations with distinct scale-invariant lower order terms both
in the subcritical case and in the critical case, when the damping and the mass
terms make both equations in some sense "wave-like". In the proof of the
subcritical c... | 1812.06588v1 |
2018-12-18 | Representation and Stability Analysis of PDE-ODE Coupled Systems | In this work, we present a scalable Linear Matrix Inequality (LMI) based
framework to verify the stability of a set of linear Partial Differential
Equations (PDEs) in one spatial dimension coupled with a set of Ordinary
Differential Equations (ODEs) via input-output based interconnection. Our
approach extends the newly... | 1812.07186v3 |
2018-12-19 | Coherent interplay between surface acoustic waves and coupled mechanical resonators: transition from plasmon-like to surface mediated coupling | Manipulation of mechanical motion at the micro-scale has been attracting
continuous attention, leading to the successful implementation of various
strategies with potential impact on classical and quantum information
processing. We here propose an approach based on the interplay between a pair
of localized mechanical r... | 1812.07952v2 |
2018-12-19 | Global phase diagram of a spin-orbit-coupled Kondo lattice model on the honeycomb lattice | Motivated by the growing interest in the novel quantum phases in materials
with strong electron correlations and spin-orbit coupling, we study the
interplay between the spin-orbit coupling, Kondo interaction, and magnetic
frustration of a Kondo lattice model on a two-dimensional honeycomb lattice. We
calculate the reno... | 1812.07979v1 |
2018-12-26 | Polaron mobility in the "beyond quasiparticles" regime | In a number of physical situations, from polarons to Dirac liquids and to
non-Fermi liquids, one encounters the "beyond quasiparticles" regime, in which
the inelastic scattering rate exceeds the thermal energy of quasiparticles.
Transport in this regime cannot be described by the kinetic equation. We employ
the Diagram... | 1812.10336v1 |
2018-12-22 | A note on the global stochastic maximum principle for fully coupled forward-backward stochastic systems | Hu et. al 2018 studied a stochastic optimal control problem for fully coupled
forward-backward stochastic control systems with a nonempty control domain. By
assuming a weakly coupled condition, they established an approach to obtain the
first-order, second-order variational equations and the adjoint equations for
the s... | 1812.10469v1 |
2019-01-02 | Dresselhaus spin-orbit coupling in [111]-oriented semiconductor nanowires | The contribution of bulk inversion asymmetry to the total spin-orbit coupling
is commonly neglected for group III-V nanowires grown in the generic [111]
direction. We have solved the complete Hamiltonian of the circular nanowire
accounting for bulk inversion asymmetry via exact numerical diagonalization.
Three differen... | 1901.00362v2 |
2019-01-06 | Excitation of whispering gallery modes with a "point-and-play", fiber-based, optical nano-antenna | We demonstrate the excitation and detection of whispering gallery modes in
optical microresonators using a "point-and-play", fiber-based, optical
nano-antenna. The coupling mechanism is based on cavity-enhanced Rayleigh
scattering. Collected spectra exhibit Lorentzian dips, Fano shapes, or
Lorentzian peaks, with a coup... | 1901.01496v2 |
2019-01-09 | Effect of spin-orbit coupling on tunnelling escape of Bose-Einstein condensate | We theoretically investigate quantum tunnelling escape of a spin-orbit (SO)
coupled Bose-Einstein condensate (BEC) from a trapping well. The condensate is
initially prepared in a quasi-one-dimensional harmonic trap. Depending on the
system parameters, the ground state can fall in different phases --- single
minimum, se... | 1901.02621v1 |
2019-01-06 | Kinetically coupled dark energy | The main goal of this work is to propose a generalized model of interacting
dark energy which allows for the kinetic term of a scalar field to couple to
the matter species a priori in the action. We derive the modified field
equations, and present novel cosmological solutions for a specific coupled
model. One alluring ... | 1901.03972v2 |
2019-01-22 | Experimental demonstration of linear and spinning Janus dipoles for polarisation and wavelength selective near-field coupling | The electromagnetic field scattered by nano-objects contains a broad range of
wave vectors and can be efficiently coupled to waveguided modes. The dominant
contribution to scattering from subwavelength dielectric and plasmonic
nanoparticles is determined by electric and magnetic dipolar responses. Here,
we experimental... | 1901.07236v1 |
2019-01-22 | The uncoupling limit of identical Hopf bifurcations with an application to perceptual bistability | We study the dynamics arising when two identical oscillators are coupled near
a Hopf bifurcation where we assume a parameter $\epsilon$ uncouples the system
at $\epsilon=0$. Using a normal form for $N=2$ identical systems undergoing
Hopf bifurcation, we explore the dynamical properties. Matching the normal form
coeffic... | 1901.07283v2 |
2019-01-23 | Extracting the pomeron-pomeron-$f_{2}(1270)$ coupling in the $p p \to p p π^{+} π^{-}$ reaction through angular distributions of the pions | We discuss how to extract the pomeron-pomeron-$f_2(1270)$ ($\mathbb{P}
\mathbb{P} f_2(1270)$) coupling within the tensor-pomeron model. The general
$\mathbb{P} \mathbb{P} f_2(1270)$ coupling is a combination of seven basic
couplings (tensorial structures). To study these tensorial structures we
propose to measure the c... | 1901.07788v2 |
2019-01-24 | Periodic-corrected data driven coupling of blood flow and vessel wall for virtual surgery | Fast and realistic coupling of blood flow and vessel wall is of great
importance to virtual surgery. In this paper, we propose a novel data-driven
coupling method that formulates physics-based blood flow simulation as a
regression problem, using an improved periodic-corrected neural network
(PcNet), estimating the acce... | 1901.08397v1 |
2019-01-26 | Chiral excitation of spin waves in ferromagnetic films | We theoretically investigate the interlayer dipolar and exchange couplings
for an array of metallic magnetic nanowires grown on top of an extended
ultrathin yttrium iron garnet film. The calculated interlayer dipolar coupling
agrees with observed anticrossings [Chen \emph{et al.}, Phys. Rev. Lett.
\textbf{120}, 217202 ... | 1901.09182v1 |
2019-01-29 | Low-impedance superconducting microwave resonators for strong coupling to small magnetic mode volumes | Recent experiments on strongly coupled microwave and ferromagnetic resonance
modes have focused on large volume bulk crystals such as yttrium iron garnet,
typically of millimeter-scale dimensions. We extend these experiments to lower
volumes of magnetic material by exploiting low-impedance lumped-element
microwave reso... | 1901.10395v1 |
2019-01-30 | Comment on "Superconductivity at low density near a ferroelectric quantum critical point: Doped SrTiO3" | W\"olfle and Balatsky Phys. Rev. B 98, 104505 (2018) have proposed a
microscopic pairing mechanism for doped SrTiO$_3$ (STO) based on the ${\textit
gradient}$ coupling of electronic density to the soft TO phonon mode. Since
this coupling to TO phonons is usually weak, this conclusion is surprising,
especially for a low... | 1901.11065v2 |
2019-02-04 | Generalising the matter coupling in massive gravity: a search for new interactions | Massive gravity theory introduced by de Rham, Gabadadze, Tolley (dRGT) is
restricted by several uniqueness theorems that protect the form of the
potential and kinetic terms, as well as the matter coupling. These restrictions
arise from the requirement that the degrees of freedom match the expectation
from Poincar\'e re... | 1902.01391v2 |
2019-02-11 | Neural Activity of Heterogeneous Inhibitory Spiking Networks with Delay | We study a network of spiking neurons with heterogeneous excitabilities
connected via inhibitory delayed pulses. For globally coupled systems the
increase of the inhibitory coupling reduces the number of firing neurons by
following a Winner Takes All mechanism. For sufficiently large transmission
delay we observe the e... | 1902.03801v1 |
2019-02-11 | Calculation of the non-perturbative strong coupling from first principles | The success of the screened massive expansion is investigated in the
framework of a screened momentum-subtraction scheme for the running of the
strong coupling in pure Yang-Mills theory. By the exact Slavnov-Taylor and
Nielsen identities, a very predictive and self-contained set of stationary
conditions are derived for... | 1902.04110v3 |
2019-02-16 | Enhancement of induced synchronization by transient uncoupling in coupled simple chaotic systems | In this paper, we report the enhanced stability of induced synchronization by
transient uncoupling observed in certain unidirectionally coupled second-order
chaotic systems. The stability of synchronization observed in the coupled
systems subjected to transient uncoupling is analyzed using the {\emph{Master
Stability F... | 1902.06049v2 |
2019-02-18 | Interacting two-particle states in the symmetric phase of the chiral Nambu--Jona-Lasinio model | The renormalisation group flow of the chiral Nambu--Jona-Lasinio (NJL) model
with one fermion flavor is mapped out in the symmetric phase with the help of
the Functional Renormalisation Group (FRG) method using a physically motivated
non-local trial effective action. The well-known infrared unstable strongly
coupled fi... | 1902.06492v2 |
2019-02-21 | Origin of Yukawa couplings for Higgs and leptoquarks | We propose a model in which the Yukawa couplings of Higgs doublets are
related to the couplings of the chiral fermions to a scalar leptoquark triplet.
This is due to their common origin via mixing with a vector-like family
distinguished by a discrete $Z_5$ symmetry, under which only the three chiral
families are neutra... | 1902.09266v2 |
2019-02-26 | Strong magnon-photon coupling in ferromagnet-superconducting resonator thin-film devices | We demonstrate strong magnon-photon coupling of a thin-film permalloy device
fabricated on a coplanar superconducting resonator. A coupling strength of
0.152 GHz and a cooperativity of 68 are found for a 30-nm-thick permalloy
stripe. The coupling strength is tunable by rotating the biasing magnetic field
or changing th... | 1902.09715v1 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.