publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2015-01-09 | First-principles theory of electron-spin fluctuation coupling and superconducting instabilities in iron selenide | We present first-principles calculations of the coupling of quasiparticles to
spin fluctuations in iron selenide and discuss which types of superconducting
instabilities this coupling gives rise to. We find that strong
antiferromagnetic stripe-phase spin fluctuations lead to large coupling
constants for superconducting... | 1501.02200v1 |
2015-01-09 | Giant spin-phonon-electronic coupling in a 5d oxide | Enhanced coupling of material properties offers new fundamental insights and
routes to multifunctional devices. In this context 5d oxides provide new
paradigms of cooperative interactions driving novel emergent behavior. This is
exemplified in 5d osmates that host a metal-insulator transition (MIT) driven
by magnetic o... | 1501.02290v1 |
2015-01-12 | Superradiant Decay and Dipole-Dipole Interaction of Distant Atoms in a Two-Way Cascaded Cavity QED System | We investigate a two-way cascaded cavity QED system consisting of
microtoroidal resonators coupled through an optical fiber. Each microtoroidal
cavity supports two counter-propagating whispering-gallery modes coupled to
single atoms through their evanescent fields. We focus on a pair of
atom-microtoroid systems and com... | 1501.02515v1 |
2015-01-14 | Study of Higgs-gauge boson anomalous couplings through $e^-e^+ \rightarrow W^-W^+H$ at ILC | In this work, Higgs couplings with gauge bosons is probed through $e^-e^+
\rightarrow W^-W^+H$ in an effective Lagrangian framework. An ILC of 500 $GeV$
center of mass energy with possible beam polarization is considered for this
purpose. The reach of ILC with integrated luminosity of 300 $fb^{-1}$ in the
determination... | 1501.03283v2 |
2015-01-23 | Stability analysis and simulations of coupled bulk-surface reaction-diffusion systems | In this article we formulate new models for coupled systems of bulk-surface
reaction-diffusion equations on stationary volumes. The bulk reaction-diffusion
equations are coupled to the surface reaction-diffusion equations through
linear Robin-type boundary conditions. We then state and prove the necessary
conditions fo... | 1501.05769v1 |
2015-02-04 | Strong gravitational lensing for the photons coupled to Weyl tensor in a Schwarzschild black hole spacetime | We have investigated the strong gravitational lensing for the photons coupled
to Weyl tensor in a Schwarzschild black hole spacetime. We find that in the
four-dimensional black hole spacetime the equation of motion of the photons
depends not only on the coupling between photon and Weyl tensor, but also on
the polarizat... | 1502.01088v3 |
2015-02-09 | Universal two-qubit interactions, measurement and cooling for quantum simulation and computing | By coupling pairs of superconducting qubits through a small Josephson
junction with a time-dependent flux bias, we show that arbitrary interactions
involving any combination of Pauli matrices can be generated with a small
number of drive tones applied through the flux bias of the coupling junction.
We then demonstrate ... | 1502.02684v1 |
2015-02-12 | Perturbative entanglement entropy in nonlocal theories | Entanglement entropy in the vacuum state of local field theories exhibits an
area law. However, nonlocal theories at large N and strong coupling violate
this area law. In these theories, the leading divergence in the entanglement
entropy is extensive for regions smaller than the effective nonlocality scale
and proporti... | 1502.03826v2 |
2015-02-13 | Improving coherence with nested environments | We have in mind a register of qubits for an quantum information system, and
consider its decoherence in an idealized but typical situation. Spontaneous
decay and other couplings to the far environment considered as the world
outside the quantum apparatus will be neglected, while couplings to quantum
states within the a... | 1502.04143v3 |
2015-02-18 | Does Current Data Prefer a Non-minimally Coupled Inflaton? | We examine the impact of a non-minimal coupling of the inflaton to the Ricci
scalar, $\frac12 \xi R\phi^2$, on the inflationary predictions. Such a
non-minimal coupling is expected to be present in the inflaton Lagrangian on
fairly general grounds. As a case study, we focus on the simplest inflationary
model governed b... | 1502.05193v2 |
2015-02-24 | Robust Asymptotic Stability of Desynchronization in Impulse-Coupled Oscillators | The property of desynchronization in an all-to-all network of homogeneous
impulse-coupled oscillators is studied. Each impulse-coupled oscillator is
modeled as a hybrid system with a single timer state that self-resets to zero
when it reaches a threshold, at which event all other impulse-coupled
oscillators adjust thei... | 1502.06694v3 |
2015-02-24 | Einstein static Universe in non-minimal kinetic coupled gravity | We study the stability of Einstein static Universe, with FLRW metric, by
considering linear homogeneous perturbations in the kinetic coupled gravity. By
taking linear homogeneous perturbations, we find that the stability of Einstein
static Universe, in the kinetic coupled gravity with quadratic scalar field
potential, ... | 1502.06721v2 |
2015-03-02 | Inflation from Asymptotically Safe Theories | We investigate models in which inflation is driven by an ultraviolet safe and
interacting scalar sector stemming from a new class of nonsupersymmetric gauge
field theories. These new theories, differently from generic scalar models, are
well defined to arbitrary short distances because of the existence of a
controllabl... | 1503.00702v1 |
2015-03-18 | Ultrafast polariton-phonon dynamics of strongly coupled quantum dot-nanocavity systems | We investigate the influence of exciton-phonon coupling on the dynamics of a
strongly coupled quantum dot-photonic crystal cavity system and explore the
effects of this interaction on different schemes for non-classical light
generation. By performing time-resolved measurements, we map out the
detuning-dependent polari... | 1503.05595v2 |
2015-03-24 | Fluctuation effects on QCD phase diagram at strong coupling | We study the QCD phase diagram away from the strong coupling limit (SCL) with
fluctuation effects in the auxiliary field Monte-Carlo (AFMC) method. First, we
give an effective action which contains next-to-leading order (NLO) finite
coupling effects of the strong coupling expansion as well as fluctuation
effects. Secon... | 1503.07049v1 |
2015-04-02 | Binary phase oscillation of two mutually coupled semiconductor lasers | A two-site Ising model is implemented as an injection-locked laser network
consisting of a single master laser and two mutually coupled slave lasers. We
observed ferromagnetic and antiferromagnetic orders in the in-phase and
out-of-phase couplings between the two slave lasers. Their phase difference is
locked to either... | 1504.00432v1 |
2015-04-06 | Spin Pumping in Electrodynamically Coupled Magnon-Photon Systems | We use electrical detection, in combination with microwave transmission, to
investigate both resonant and non-resonant magnon-photon coupling at room
temperature. Spin pumping in a dynamically coupled magnon-photon system is
found to be distinctly different from previous experiments. Characteristic
coupling features su... | 1504.01335v1 |
2015-04-06 | Infrared Solar Energy Harvesting using Nano-Rectennas | Rectennas formed from nanodipole antennas terminated by plasmonic
metal-insulator-metal (MIM) travelling wave transmission line rectifiers are
developed for ambient thermal energy harvesting at 30 THz. The transmission
lines are formed from two strips coupled either vertically or laterally. A
systematic design approach... | 1504.01990v1 |
2015-04-08 | Dissociation of Feshbach molecules via spin-orbit coupling in ultracold Fermi gases | We study the dissociation of Feshbach molecules in ultracold Fermi gases with
spin-orbit (SO) coupling. Since SO coupling can induce quantum transition
between the Feshbach molecules and the fully polarized Fermi gas, the Feshbach
molecules can be dissociated by the SO coupling. We experimentally realized
this new type... | 1504.02021v1 |
2015-04-19 | Hydrodynamics of Normal Atomic Gases with Spin-orbit Coupling | Successful realization of spin-orbit coupling in atomic gases by the NIST
scheme opens the prospect of studying the effects of spin-orbit coupling on
many-body physics in an unprecedentedly controllable way. Here we derive the
linearized hydrodynamic equations for the normal atomic gases of the spin-orbit
coupling by t... | 1504.04786v2 |
2015-04-21 | Generating quadrature squeezed light with dissipative optomechanical coupling | The recent demonstration of cooling of a macroscopic silicon nitride membrane
based on dissipative coupling makes dissipatively coupled optomechanical
systems as promising candidates for squeezing. We theoretically show that such
a system in a cavity on resonance can yield good squeezing which is comparable
to that pro... | 1504.05617v4 |
2015-04-28 | Control of Homodirectional and General Heterodirectional Linear Coupled Hyperbolic PDEs | Research on stabilization of coupled hyperbolic PDEs has been dominated by
the focus on pairs of counter-convecting ("heterodirectional") transport PDEs
with distributed local coupling and with controls at one or both boundaries. A
recent extension allows stabilization using only one control for a system
containing an ... | 1504.07491v1 |
2015-04-28 | Numerical bifurcation analysis of two coupled FitzHugh-Nagumo oscillators | The behavior of neurons can be modeled by the FitzHugh-Nagumo oscillator
model, consisting of two nonlinear differential equations, which simulates the
behavior of nerve impulse conduction through the neuronal membrane. In this
work, we numerically study the dynamical behavior of two coupled
FitzHugh-Nagumo oscillators... | 1504.07565v1 |
2015-05-04 | Surface coupling effects on the capacitance of thin insulating films | A general form for the surface roughness effects on the capacitance of a
capacitor is proposed. We state that a capacitor with two uncoupled rough
surfaces could be treated as two capacitors in series which have been divided
from the mother capacitor by a slit. This is in contrast to the case where the
two rough surfac... | 1505.00751v1 |
2015-05-11 | On the uniqueness of the non-minimal matter coupling in massive gravity and bigravity | In de Rham-Gabadadze-Tolley (dRGT) massive gravity and bigravity, a
non-minimal matter coupling involving both metrics generically re-introduces
the Boulware--Deser (BD) ghost. A non-minimal matter coupling via a simple, yet
specific composite metric has been proposed, which eliminates the BD ghost
below the strong cou... | 1505.02616v2 |
2015-05-23 | Constraining the Higgs Boson Coupling to Light Quarks in the $H\to ZZ$ Final States | We constrain the Higgs boson (Yukawa) coupling to quarks in the first two
generations in the $H\to ZZ$ final states. Deviation of these couplings from
the Standard Model values leads to change in the Higgs boson width and in the
cross sections of relevant processes. In the Higgs boson resonance region, an
increased lig... | 1505.06369v2 |
2015-05-26 | Cosmological simulations with hydrodynamics of screened scalar-tensor gravity with non-universal coupling | In this paper we study the effects of letting the dark matter and the gas in
the Universe couple to the scalar field of the symmetron model, a modified
gravity theory, with varying coupling strength. We also search for a way to
distinguish between universal and non-universal couplings in observations. The
research is p... | 1505.06803v2 |
2015-05-28 | Exploring multimodal data fusion through joint decompositions with flexible couplings | A Bayesian framework is proposed to define flexible coupling models for joint
tensor decompositions of multiple data sets. Under this framework, a natural
formulation of the data fusion problem is to cast it in terms of a joint
maximum a posteriori (MAP) estimator. Data driven scenarios of joint posterior
distributions... | 1505.07717v3 |
2015-05-29 | Linear Stability and the Braess Paradox in Coupled Oscillators Networks and Electric Power Grids | We investigate the influence that adding a new coupling has on the linear
stability of the synchronous state in coupled oscillators networks. Using a
simple model we show that, depending on its location, the new coupling can lead
to enhanced or reduced stability. We extend these results to electric power
grids where a ... | 1505.07998v2 |
2015-06-01 | Non-minimal derivative couplings of the composite metric | In the context of massive gravity, bi-gravity and multi-gravity non-minimal
matter couplings via a specific composite effective metric were investigated
recently. Even if these couplings generically reintroduce the Boulware-Deser
ghost, this composite metric is unique in the sense that the ghost reemerges
only beyond t... | 1506.00580v1 |
2015-06-02 | Large pseudo-scalar components in the C2HDM | We discuss the CP nature of the Yukawa couplings of the Higgs boson in the
framework of a complex two Higgs doublet model (C2HDM). After analysing all
data gathered during the Large Hadron Collider run 1, the measurement of the
Higgs couplings to the remaining SM particles already restricts the parameter
space of many ... | 1506.00860v1 |
2015-06-19 | Cavity mediated coherent coupling of magnetic moments | We demonstrate the long range strong coupling of magnetostatic modes in
spatially separated ferromagnets mediated by a microwave frequency cavity. Two
spheres of yttrium iron garnet are embedded in the cavity and their
magnetostatic modes probed using a dispersive measurement technique. We find
they are strongly couple... | 1506.06049v2 |
2015-06-24 | Temporal Dynamics and Nonclassical Photon Statistics of Quadratically Coupled Optomechanical Systems | Quantum optomechanical system serves as an interface for coupling between
photons and phonons due to mechanical oscillations. We used the
Heisenberg-Langevin approach under Markovian white noise approximation to study
a quadratically coupled optomechanical system which contains a thin dielectric
membrane quadratically ... | 1506.07518v1 |
2015-06-27 | Harnessing non-Markovian quantum memory by environmental coupling | Controlling the non-Markovian dynamics of open quantum systems is essential
in quantum information technology since it plays a crucial role in preserving
quantum memory. Albeit in many realistic scenarios the quantum system can
simultaneously interact with composite environments, this condition remains
little understoo... | 1506.08293v1 |
2015-09-03 | Chimera states in Star Networks | We consider star networks of chaotic oscillators, with all end-nodes
connected only to the central hub node, under diffusive coupling, conjugate
coupling and mean-field type coupling. We observe the existence of chimeras in
the end-nodes, which are identical in terms of the coupling environment and
dynamical equations.... | 1509.01093v1 |
2015-09-18 | Entanglement Entropy and Variational Methods: Interacting Scalar Fields | We develop a variational approximation to the entanglement entropy for scalar
$\phi^4$ theory in 1+1, 2+1, and 3+1 dimensions, and then examine the
entanglement entropy as a function of the coupling. We find that in 1+1 and 2+1
dimensions, the entanglement entropy of $\phi^4$ theory as a function of
coupling is monoton... | 1509.05685v2 |
2015-09-29 | Chaotic Weak Chimeras and their Persistence in Coupled Populations of Phase Oscillators | Nontrivial collective behavior may emerge from the interactive dynamics of
many oscillatory units. Chimera states are chaotic patterns of spatially
localized coherent and incoherent oscillations. The recently-introduced notion
of a weak chimera gives a rigorously testable characterization of chimera
states for finite-d... | 1509.08824v2 |
2015-10-07 | The top quark right coupling in the tbW-vertex | The most general parametrization of the $tbW$ vertex includes a right
coupling $V_R$ that is zero at tree level in the standard model. This quantity
may be measured at the Large Hadron Collider where the physics of the top decay
is currently investigated. This coupling is present in new physics models at
tree level and... | 1510.02153v3 |
2015-10-20 | Reappearance of Kondo Effect in Serially Coupled Symmetric Triple Quantum Dots | We investigate the spectral properties of serially coupled triple quantum dot
(TQD) system by means of the hierarchical equations of motion (HEOM) approach.
We find that with the increase of the interdot coupling t, the first Kondo
screening is followed by another Kondo effect reappearing due to the transition
from the... | 1510.05735v1 |
2015-10-27 | Ghost-Stochastic Resonance in a Unidirectionally Coupled and Small-World Networks | Ghost-stochastic resonance is a noise-induced resonance at a missing
fundamental frequency in the input signal. In this paper we investigate the
features of ghost-stochastic resonance in a unidirectionally coupled network
and small-world network with each unit being bistable Bellows map. In the
one-way coupled network ... | 1510.07887v1 |
2015-11-01 | Vacuum Rabi splitting in a plasmonic cavity at the single quantum emitter limit | The strong interaction of individual quantum emitters with resonant cavities
is of fundamental interest for understanding light matter interactions.
Plasmonic cavities hold the promise of attaining the strong coupling regime
even under ambient conditions and within subdiffraction volumes. Recent
experiments revealed st... | 1511.00263v3 |
2015-11-05 | Dirac Coupled Channel Analyses of the high-lying excited states at $^{22}$Ne(p,p$'$)$^{22}$Ne | Dirac phenomenological coupled channel analyses are performed using an
optical potential model for the high-lying excited vibrational states at 800
MeV unpolarized proton inelastic scatterings from $^{22}$Ne nucleus.
Lorentz-covariant scalar and time-like vector potentials are used as direct
optical potentials and the ... | 1511.01729v1 |
2015-11-11 | Full analysis of general non-standard tbW couplings | Possible non-standard couplings which could contribute to the t -> b W
process are studied based on the effective-Lagrangian approach. The
corresponding effective Lagrangian consists of four kinds of dimension-6
effective operators, each of which has an independent coupling constant. In
this analysis, all those couplin... | 1511.03437v2 |
2015-11-11 | Variable-range hopping through marginally localized phonons | We investigate the effect of coupling Anderson localized particles in one
dimension to a system of marginally localized phonons having a symmetry
protected delocalized mode at zero frequency. This situation is naturally
realized for electrons coupled to phonons in a disordered nano-wire as well as
for ultra-cold fermio... | 1511.03676v2 |
2015-11-12 | Entangling polaritons via dynamical Casimir effect in circuit quantum electrodynamics | We investigate how the dynamical Casimir effect can entangle quantum systems
in different coupling regimes of circuit quantum electrodynamics, and show the
robustness of such entanglement generation against dissipative effects with
current technology. We consider two qubit-resonator systems, which are coupled
by a SQUI... | 1511.03825v2 |
2015-11-16 | Drude weight and optical conductivity of a two-dimensional heavy-hole gas with $k$-cubic spin-orbit interactions | We present detailed theoretical study on zero-frequency Drude weight and
optical conductivity of a two-dimensional heavy-hole gas(2DHG) with $k$-cubic
Rashba and Dresselhaus spin-orbit interactions. The presence of $k$-cubic
spin-orbit couplings strongly modifies the Drude weight in comparison to the
electron gas with ... | 1511.04917v3 |
2015-11-30 | Detecting quark anomalous electroweak couplings at the LHC | We study the dimension-6 quark anomalous electroweak couplings in the
formulation of linearly realized effective Lagrangian. We investigate the
constraints on these anomalous couplings from the $pp \rightarrow W^+W^-$
process in detail at the LHC. With additional kinematic cuts, we find that the
14 TeV LHC can provide ... | 1511.09176v1 |
2016-01-14 | Entanglement entropies of coupled harmonic oscillators | We investigate the quantum entanglement of systems of coupled harmonic
oscillators on the basis of thermo-field dynamics (TFD). For coupled harmonic
oscillators at equilibrium, the extended entanglement entropy is derived using
the TFD method, and it is demonstrated to be controlled by temperature and
coupling paramete... | 1601.03584v2 |
2016-01-19 | Adiabatic Green's function technique and the transient behavior in time-dependent fermion-boson coupled models | The Lang-Firsov Hamiltonian, a well-known solvable model of interacting
fermion-boson system with sideband features in the fermion spectral weight, is
generalized to have the time-dependent fermion-boson coupling constant. We show
how to derive the two-time Green's function for the time-dependent problem in
the adiabat... | 1601.04872v2 |
2016-01-21 | Spin pumping in strongly coupled magnon-photon systems | We experimentally investigate magnon-polaritons, arising in ferrimagnetic
resonance experiments in a microwave cavity with a tuneable quality factor. To
his end, we simultaneously measure the electrically detected spin pumping
signal and microwave reflection (the ferrimagnetic resonance signal) of a
yttrium iron garnet... | 1601.05681v1 |
2016-01-27 | A PT-symmetric dual-core system with the sine-Gordon nonlinearity and derivative coupling | We propose a system of sine-Gordon equations, with the $\mathcal{PT}$
symmetry represented by balanced gain and loss in them. The equations are
coupled by sine-field terms and first-order derivatives. The sinusoidal
coupling stems from local interaction between adjacent particles in the coupled
Frenkel-Kontorova (FK) c... | 1601.07321v2 |
2016-01-28 | Effects of the tensor couplings on the nucleonic direct URCA processes in neutron star matter | The relativistic neutrino emissivity of the nucleonic direct URCA processes
in neutron star matter are investigated within the relativistic Hartree-Fock
approximation. We study particularly the influences of the tensor couplings of
vector mesons $\omega$ and $\rho$ on the nucleonic direct URCA processes. It is
found th... | 1601.07607v1 |
2016-02-12 | Magnetized quark matter with a magnetic-field dependent coupling | It was recently derived that the QCD running coupling is a function of the
magnetic field strength under the strong magnetic field approximation. Inspired
by this progress and based on the self-consistent solutions of gap equations,
the properties of two-flavor and three-flavor quark matter are studied in the
framework... | 1602.03939v2 |
2016-02-23 | Phase-coupled Oscillators with Plastic Coupling: Synchronization and Stability | In this article we study synchronization of systems of homogeneous
phase-coupled oscillators with plastic coupling strengths and arbitrary
underlying topology. The dynamics of the coupling strength between two
oscillators is governed by the phase difference between these oscillators. We
show that, under mild assumption... | 1602.07012v1 |
2016-02-23 | Energetics of synchronization in coupled oscillators rotating on circular trajectories | We derive a concise and general expression of the energy dissipation rate for
coupled oscillators rotating on circular trajectories by unifying the
nonequilibrium aspects with the nonlinear dynamics via stochastic
thermodynamics. In the framework of phase oscillator models, it is known that
the even and odd parts of th... | 1602.07116v5 |
2016-04-06 | Quartz-superconductor quantum electromechanical system | We propose and analyse a quantum electromechanical system composed of a
monolithic quartz bulk acoustic wave (BAW) oscillator coupled to a
superconducting transmon qubit via an intermediate LC electrical circuit.
Monolithic quartz oscillators offer unprecedentedly high effective masses and
quality factors for the inves... | 1604.01834v1 |
2016-04-15 | Theoretical study of head-on collision of dust acoustic solitary waves in a strongly coupled complex plasma | We investigate the propagation characteristics of two counter propagating
dust acoustic solitary waves (DASWs) undergoing a head-on collision, in the
presence of strong coupling between micron sized charged dust particles in a
complex plasma. A coupled set of nonlinear dynamical equations describing the
evolution of th... | 1604.04445v1 |
2016-04-20 | Second post-Newtonian Lagrangian dynamics of spinning compact binaries | The leading-order spin-orbit coupling is included in a post-Newtonian
Lagrangian formulation of spinning compact binaries, which consists of the
Newtonian term, first post-Newtonian (1PN) and 2PN non-spin terms and 2PN
spin-spin coupling. This makes a 3PN spin-spin coupling occur in the derived
Hamiltonian. The spin-sp... | 1604.05810v2 |
2016-04-27 | Imperfect traveling chimera states induced by local synaptic gradient coupling | In this paper we report the occurrence of chimera patterns in a network of
neuronal oscillators, which are coupled through {\it local}, synaptic {\it
gradient} coupling. We discover a new chimera pattern, namely the {\it
imperfect traveling chimera} where the incoherent traveling domain spreads into
the coherent domain... | 1604.07936v1 |
2016-06-08 | A level-set-based topology optimisation for acoustic-elastic coupled problems with a fast BEM-FEM solver | This paper presents a structural optimisation method in three-dimensional
acoustic-elastic coupled problems. The proposed optimisation method finds an
optimal allocation of elastic materials which reduces the sound level on some
fixed observation points. In the process of the optimisation, configuration of
the elastic ... | 1606.02383v1 |
2016-06-18 | Simulation of Deformation and Flow in Fractured, Poroelastic Materials | We introduce a coupled system of PDEs for the modeling of the fluid-fluid and
fluid-solid interaction in a poroelastic material with a single static
fracture. The fluid flow in the fracture is modeled by a lower-dimensional
Darcy equation, which interacts with the surrounding rock matrix and the fluid
it contains. We e... | 1606.05765v2 |
2016-06-24 | Dynamics of phase oscillators in the Kuramoto model with generalized frequency-weighted coupling | We generalize the Kuramoto model for the synchronization transition of
globally coupled phase oscillators to populations by incorporating an
additional heterogeneity with the coupling strength, where each oscillator pair
interacts with different coupling strength weighted by a genera; function of
their natural frequenc... | 1606.07579v1 |
2016-06-24 | Two-dimensional electron gas in the regime of strong light-matter coupling: Dynamical conductivity and all-optical measurements of Rashba and Dresselhaus coupling | A nonperturbative interaction of an electronic system with a laser field can
substantially modify its physical properties. In particular, in two-dimensional
(2D) materials with a lack of inversion symmetry, the achievement of a regime
of strong light-matter coupling allows direct optical tuning of the strength of
the R... | 1606.07663v2 |
2016-06-27 | Raman scattering with strongly coupled vibron-polaritons | Strong coupling between cavity photons and molecular vibrations can lead to
the formation of vibron-polaritons. In a recent experiment with PVAc molecules
in a metal-metal microcavity [A.Shalabney et al., Ang.Chem.Int.Ed. 54 7971
(2015)], such a coupling was observed to enhance the Raman scattering
probability by sever... | 1606.08343v1 |
2016-07-01 | Microscopic theory of the Coulomb based exchange coupling in magnetic tunnel junctions | We study interlayer exchange coupling (IEC) based on the many-body Coulomb
interaction between conduction electrons in magnetic tunnel junction (MTJ).
This mechanism complements the known IEC based on virtual electron hopping (or
spin currents). We find that these two mechanisms have different behavior on
system parame... | 1607.00403v3 |
2016-07-04 | Strong electron-phonon coupling in the sigma band of graphene | First-principles studies of the electron-phonon coupling in graphene predict
a high coupling strength for the $\sigma$ band with $\lambda$ values of up to
0.9. Near the top of the $\sigma$ band, $\lambda$ is found to be $\approx 0.7$.
This value is consistent with the recently observed kinks in the $\sigma$ band
disper... | 1607.00939v1 |
2016-07-08 | Control of magnon-photon coupling strength in a planar resonator/YIG thin film configuration | A systematic study of the coupling at room temperature between ferromagnetic
resonance (FMR) and a planar resonator is presented. The chosen magnetic
material is a ferrimagnetic insulator (Yttrium Iron Garnet: YIG) which is
positioned on top of a stop band (notch) filter based on a stub line
capacitively coupled to a 5... | 1607.02358v3 |
2016-07-18 | Building a Holographic Superconductor with a Scalar Field Coupled Kinematically to Einstein Tensor | We study the holographic dual description of a superconductor in which the
gravity sector consists of a Maxwell field and a charged scalar field which
except its minimal coupling to gravity it is also coupled kinematically to
Einstein tensor. As the strength of the new coupling is increased, the critical
temperature be... | 1607.04928v3 |
2016-07-18 | Fate of photon blockade in the deep strong coupling regime | We investigate the photon emission properties of the driven-dissipative Rabi
model in the so-called ultrastrong and deep strong coupling regimes, where the
atom-cavity coupling rate $g$ becomes comparable or larger than the cavity
frequency $\omega_c$. By solving numerically the master equation in the
dressed-state bas... | 1607.05062v1 |
2017-02-08 | $Δ$ isobars in hyperon stars in a modified quark meson coupling model | The possibility of the appearance of $\Delta$ isobars in neutron star matter
and the so called {\it $\Delta$ puzzle} is studied in a modified quark meson
coupling model where the confining interaction for quarks inside a baryon is
represented by a phenomenological average potential in an equally mixed
scalar-vector har... | 1702.02310v1 |
2017-02-15 | Dynamics of coupled phantom and tachyon fields | In this paper, we apply the dynamical analysis to a coupled phantom field
with scaling potential taking particular forms of the coupling (linear and
combination of linear), and present phase space analysis. We investigate if
there exist late time accelerated scaling attractor that has the ratio of dark
energy and dark ... | 1702.04720v3 |
2017-03-02 | Specific Heat and Effects of Uniaxial Anisotropy of a $p$-wave Pairing Interaction in a Strongly Interacting Ultracold Fermi Gas | We investigate the specific heat $C_V$ at constant volume and effects of
uniaxial anisotropy of a $p$-wave attractive interaction in the normal state of
an ultracold Fermi gas. Within the framework of the strong-coupling theory
developed by Nozi\`eres and Schmitt-Rink, we evaluate this thermodynamic
quantity as a funct... | 1703.00585v1 |
2017-03-15 | Stochastic thermodynamics in the strong coupling regime: An unambiguous approach based on coarse-graining | We consider a classical and possibly driven composite system $X \otimes Y$
weakly coupled to a Markovian thermal reservoir $R$ so that an unambiguous
stochastic thermodynamics ensues for $X \otimes Y$. This setup can be
equivalently seen as a system $X$ strongly coupled to a non-Markovian reservoir
$Y \otimes R$. We de... | 1703.05098v2 |
2017-03-23 | All-Optical Nanopositioning of High-Q Silica Microspheres | A tunable, all-optical, coupling method has been realized for a
high-\textit{Q} silica microsphere and an optical waveguide. By means of a
novel optical nanopositioning method, induced thermal expansion of an
asymmetric microsphere stem for laser powers up to 171~mW has been observed and
used to fine tune the microsphe... | 1703.07958v1 |
2017-03-27 | Bright soliton dynamics in Spin Orbit-Rabi coupled Bose-Einstein condensates | We investigate the dynamics of a spin-orbit (SO) coupled BECs in a time
dependent harmonic trap and show the dynamical system to be completely
integrable by constructing the Lax pair. We then employ gauge transformation
approach to witness the rapid oscillations of the condensates for a relatively
smaller value of SO c... | 1703.09119v1 |
2017-08-17 | Proca stars with nonminimal coupling to the Einstein tensor | We investigate Proca star (PS) solutions, namely boson star (BS) type
solutions for a complex vector field with mass and nonminimal coupling to the
Einstein tensor. Irrespective of the existence of nonminimal coupling, PS
solutions are mini-BS type, but the inclusion of it changes properties. For
positive nonminimal co... | 1708.05358v1 |
2018-02-20 | Electromechanical coupling of waves in nerve fibres | The propagation of an action potential (AP) in a nerve fibre is accompanied
by mechanical and thermal effects. In this paper an attempt is made to build up
a mathematical model which couples the AP with a possible pressure wave (PW) in
the axoplasm and waves in the nerve fibre wall (longitudinal - LW and
transverse - T... | 1802.07014v2 |
2018-02-23 | A role of asymmetry in linear response of globally coupled oscillator systems | The linear response is studied in globally coupled oscillator systems
including the Kuramoto model. We develop a linear response theory which can be
applied to systems whose coupling functions are generic. Based on the theory,
we examine the role of asymmetry introduced to the natural frequency
distribution, the coupli... | 1802.08383v1 |
2018-04-09 | Partial synchronization of relaxation oscillators with repulsive coupling in autocatalytic integrate-and-fire model and electrochemical experiments | Experiments and supporting theoretical analysis is presented to describe the
synchronization patterns that can be observed with a population of globally
coupled electrochemical oscillators close to a homoclinic, saddle-loop
bifurcation, where the coupling is repulsive in the electrode potential. While
attractive coupli... | 1804.02923v1 |
2018-04-22 | The Coupled-Cluster Formalism - a Mathematical Perspective | The Coupled-Cluster theory is one of the most successful high precision
methods used to solve the stationary Schr\"odinger equation. In this article,
we address the mathematical foundation of this theory with focus on the
advances made in the past decade. Rather than solely relying on spectral gap
assumptions (non-dege... | 1804.08134v2 |
2018-11-04 | Dynamical speedup of a two-level system induced by coupling in the hierarchical environment | We investigate the dynamics of a two-level system in the presence of an
overall environment composed of two layers. The first layer is just one
single-mode cavity which decays to memoryless reservoir while the second layer
is the two coupled single-mode cavities which decay to memoryless or
memory-keeping reservoirs. I... | 1811.01327v1 |
2018-11-02 | Acoustic scattering from a fluid cylinder with Willis constitutive properties | A material that exhibits Willis coupling has constitutive equations that
couple the pressure-strain and momentum-velocity relationships. This coupling
arises from subwavelength asymmetry and non-locality in heterogeneous media.
This paper considers the problem of the scattering of a plane wave by a
cylinder exhibiting ... | 1811.03007v1 |
2018-11-16 | Selective Kondo strong coupling in magnetic impurity flat-band lattices | The periodic Anderson impurity model on the Lieb lattice is studied by the
slave-boson mean-field approximation in the strong interaction limit. The
electron structure of conduction electrons on the Lieb lattice features both
the band flatness and soft gap at low energy. With these features conduction
electrons can for... | 1811.06671v1 |
2018-11-27 | Monolithic coupling of implicit material point method with finite element method | A monolithic coupling between the material point method (MPM) and the finite
element method (FEM) is presented. The MPM formulation described is implicit,
and the exchange of information between particles and background grid is
minimized. The reduced information transfer from the particles to the grid
improves the stab... | 1811.11150v1 |
2010-05-04 | Higgs boson self coupling from two-loop analysis | The scale invariant of the effective potential of the standard model at
two-loop is used as a boundary condition under the assumption that the two-loop
effective potential approximates the full effective potential. This condition
leads with the help of the renormalization group functions of the model at
two-loop to an ... | 1005.0536v1 |
2010-05-12 | Coupled multimode optomechanics in the microwave regime | The motion of micro- and nanomechanical resonators can be coupled to
electromagnetic fields. This allows to explore the mutual interaction and
introduces new means to manipulate and control both light and mechanical
motion. Such optomechanical systems have recently been implemented in
nanoelectromechanical systems invo... | 1005.2155v1 |
2010-05-14 | Spin State Transfer in Laterally Coupled Quantum Dot Chains with Disorders | Quantum dot arrays are a promising media for transferring quantum information
between two distant points without resorting to mobile qubits. Here we study
two most common disorders namely, hyperfine interaction and exchange coupling
fluctuations, in quantum dot arrays and their effects on quantum communication
through ... | 1005.2571v2 |
2010-05-31 | Greybody factor for a scalar field coupling to Einstein's tensor | We study the greybody factor and Hawking radiation for a scalar field
coupling to Einstein's tensor in the background of Reissner-Nordstr\"om black
hole in the low-energy approximation. We find that the presence of the coupling
terms modifies the standard results in the greybody factor and Hawking
radiation. Our result... | 1005.5601v3 |
2013-08-15 | On the consistency of non-minimally coupled f(R) gravity | Theories with a non-minimal coupling between the space-time curvature and
matter fields introduce an extra force due to the non-conservation of the
matter energy momentum. In the present work the theoretical consistency of such
couplings is studied using a scalar field Lagrangian to model the matter
content. The condit... | 1308.3401v1 |
2013-08-16 | Strong Coupling Expansion of the Extended Hubbard Model with Spin-Orbit Coupling | We study the strong coupling limit of the extended Hubbard model in two
dimensions. The model consists of hopping, on-site interaction,
nearest-neighbor interaction, spin-orbit coupling and Zeeman spin splitting.
While the study of this model is motivated by a search for topological phases
and in particular a topologic... | 1308.3731v2 |
2013-08-27 | Quantum phases of 1D Hubbard models with three- and four-body couplings | The experimental advances in cold atomic and molecular gases stimulate the
investigation of lattice correlated systems beyond the conventional on-site
Hubbard approximation, by possibly including multi-particle processes. We study
fermionic extended Hubbard models in a one dimensional lattice with different
types of pa... | 1308.5909v1 |
2014-03-13 | Resolved sidebands in a strain-coupled hybrid spin-oscillator system | We report on single electronic spins coupled to the motion of mechanical
resonators by a novel mechanism based on crystal strain. Our device consists of
single-crystalline diamond cantilevers with embedded Nitrogen-Vacancy center
spins. Using optically detected electron spin resonance, we determine the
unknown spin-str... | 1403.3405v1 |
2014-03-17 | Photoelastic coupling in gallium arsenide optomechanical disk resonators | We analyze the magnitude of the radiation pressure and electrostrictive
stresses exerted by light confined inside GaAs semiconductor WGM optomechanical
disk resonators, through analytical and numerical means, and find the
electrostrictive force to be of prime importance. We investigate the geometric
and photoelastic op... | 1403.4269v1 |
2014-03-19 | Coupling graphene mechanical resonators to superconducting microwave cavities | Graphene is an attractive material for nanomechanical devices because it
allows for exceptional properties, such as high frequencies and quality
factors, and low mass. An outstanding challenge, however, has been to obtain
large coupling between the motion and external systems for efficient readout
and manipulation. Her... | 1403.4792v2 |
2014-03-30 | Generalized Synchronization of Coupled Chaotic Systems | In this paper we briefly report some recent developments on generalized
synchronization. We discuss different methods of detecting generalized
synchronization. We first consider two unidirectionally coupled systems and
then two mutually coupled systems. We then extend the study to a network of
coupled systems. In the s... | 1403.7719v1 |
2017-01-09 | Analytical derivative coupling for multistate CASPT2 theory | The probability of non-radiative transitions in photochemical dynamics is
determined by the derivative couplings, the couplings between different
electronic states through the nuclear degrees of freedom. Efficient and
accurate evaluation of the derivative couplings is, therefore, of central
importance to realize reliab... | 1701.02259v4 |
2017-01-10 | Fermion localization mechanism with derivative geometrical coupling on branes | In order to localize fermions on branes with codimension one, one usually
introduces the Yukawa coupling between fermions and background scalar fields or
the recently proposed derivative fermion-scalar coupling in [Phys. Rev. D 89
(2014) 086001]. In this paper, we explore the coupling between a spinor field
$\Psi$ and ... | 1701.02429v2 |
2017-01-15 | Analytical coupled-channels treatment of two-body scattering in the presence of three-dimensional isotropic spin-orbit coupling | It is shown that the single-particle spin-orbit coupling terms, which---in
the cold atom context---are associated with synthetic gauge fields, can
significantly and non-trivially modify the phase accumulation at small
interparticle distances even if the length scale $(k_{\text{so}})^{-1}$
associated with the spin-orbit... | 1701.03979v1 |
2017-01-18 | Control and enhancement of interferometric coupling between two photonic qubits | We theoretically investigate and experimentally demonstrate a procedure for
conditional control and enhancement of an interferometric coupling between two
qubits encoded into states of bosonic particles. Our procedure combines local
coupling of one of the particles to an auxiliary mode and single-qubit quantum
filterin... | 1701.05220v1 |
2018-05-08 | Dynamical system approach of non-minimal coupling in AdS/CFT cosmology | We study the dynamical system approach of non minimally coupled scalar field
to induced gravity on the brane in the framework of the AdS/CFT correspondence.
In this context, we derive the modified Friedmann equation and the equation of
motion. The dynamics of this model are studied by rewriting the cosmological
field e... | 1805.02942v3 |
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