publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
|---|---|---|---|
2018-12-16 | Strong electron-boson coupling in the iron-based superconductor BaFe1.9Pt0.1As2 revealed by infrared spectroscopy | Understanding the formation of Cooper pairs in iron-based superconductors is
one of the most important topics in condensed matter physics. In conventional
superconductors, the electron-phonon interaction leads to the formation of
Cooper pairs. In conventional strong-coupling superconductors like lead (Pb),
the features... | 1812.06546v1 |
2019-01-02 | Controlling Nanoscale Air-Gaps for Critically Coupled Surface Polaritons by Means of Non-Invasive White-Light Interferometry | We report an experimental method to control large-area air-gaps in the
nanometer range for evanescent coupling of light to surface waves such as
surface plasmon polaritons or surface phonon polaritons. With the help of
spectrally resolved white-light interferometry we are able to stabilize and
tune the gap with nanomet... | 1901.00332v1 |
2019-01-09 | Synchronization of Oscillators via Active Media | In this paper, we study pairs of oscillators that are indirectly coupled via
active (excitable) cells. We introduce a scalar phase model for coupled
oscillators and excitable cells. We first show that one excitable and one
oscillatory cell will exhibit phase locking at a variety of $m:n$ patterns. We
next introduce a s... | 1901.02854v2 |
2019-01-18 | Persistent coherent beating in coupled parametric oscillators | Coupled parametric oscillators were recently employed as simulators of
artificial Ising networks, with the potential to solve computationally hard
minimization problems. We demonstrate a new dynamical regime within the
simplest network - two coupled parametric oscillators, where the oscillators
never reach a steady sta... | 1901.06202v4 |
2019-01-22 | Control of the magnon-photon level attraction in a planar cavity | A resistive coupling circuit is used to model the recently discovered
dissipative coupling in a hybridized cavity photon-magnon system. With this
model as a basis we have designed a planar cavity in which a controllable
transition between level attraction and level repulsion can be achieved. This
behaviour can be quant... | 1901.07633v2 |
2019-02-04 | Compensation of the trap-induced quadrupole interaction in trapped Rydberg ions | The quadrupole interaction between the Rydberg electronic states of a Rydberg
ion and the radio frequency electric field of the ion trap is analyzed. Such a
coupling is negligible for the lowest energy levels of a trapped ion but it is
important for a trapped Rydberg ion due to its large electric dipole moment.
This co... | 1902.01087v1 |
2019-02-14 | Intrinsic long range antiferromagnetic coupling in dilutely V doped CuInTe$_2$ | Despite the various magnetic orders mediated by superexchange mechanism, the
existence of a long range antiferromagnetic (AFM) coupling is unknown. Based on
DFT calculations, we discovered an intrinsic long range AFM coupling in V doped
CuInTe$_2$. The AFM coupling is mainly due to the $p-d$ coupling and electron
redis... | 1902.05281v2 |
2019-02-26 | Exciton-plasmon energy exchange drives the transition to strong coupling regime | We present a model for exciton-plasmon coupling based on an energy exchange
mechanism between quantum emitters (QE) and localized surface plasmons in
metal-dielectric structures. Plasmonic correlations between QEs give rise to a
collective state exchanging its energy cooperatively with a resonant plasmon
mode. By defin... | 1902.09676v2 |
2019-03-02 | Strong system-bath coupling induces negative differential thermal conductance and heat amplification in nonequilibrium two-qubits systems | Quantum heat transfer is analyzed in nonequilibrium two-qubits systems by
applying the nonequilibrium polaron-transformed Redfield equation combined with
full counting statistics. Steady state heat currents with weak and strong
qubit-bath couplings are clearly unified. Within the two-terminal setup, the
negative differ... | 1903.00654v1 |
2019-03-05 | Non-minimally coupled nonlinear spinor field in Bianchi type-I cosmology | Within the scope of Bianchi type-$I$ cosmological model we have studied the
role of spinor field in the evolution of the Universe. In doing so we have
considered the case with non-minimal coupling. It was found that the
non-diagonal components of the energy-momentum tensor of the spinor field,
hence the restrictions on... | 1903.01781v1 |
2019-03-07 | Occurrence and stability of chimera states in multivariable coupled flows | Study of collective phenomenon in populations of coupled oscillators are a
subject of intense exploration in physical, biological, neuronal and social
systems. Here we propose a scheme for the creation of chimera states, namely
the coexistence of distinct dynamical behaviors in an ensemble of multivariable
coupled osci... | 1903.02739v1 |
2019-03-07 | Three-wave interactions in magnetized warm-fluid plasmas: general theory with evaluable coupling coefficient | Resonant three-wave coupling is an important mechanism via which waves
interact in a nonlinear medium. When the medium is a magnetized warm-fluid
plasma, a previously-unknown formula for the coupling coefficients is derived
by solving the fluid-Maxwell's equations to second order using multiscale
perturbative expansion... | 1903.02745v1 |
2019-03-11 | Emergent Vibronic Excitations in the Magnetodielectric Regime of $\text{Ce}_2\text{O}_3$: Raman Scattering Studies | The strong coupling between spin, lattice and electronic degrees of freedom
in magnetic materials can produce interesting phenomena, including multiferroic
and magnetodielectric (MD) behavior, and exotic coupled excitations, such as
electromagnons. We present a temperature- and magnetic-field-dependent
inelastic light ... | 1903.04505v1 |
2019-03-20 | Spin dynamics of antiferromagnetically coupled ferromagnetic bilayers -- the case of Cr$_2$WO$_6$ and Cr$_2$MoO$_6$ | Recent inelastic neutron diffraction measurements on Cr$_2$(Te, W, Mo)O$_6$
have revealed that these systems consist of bilayers of spin-3/2 Cr$^{3+}$ ions
with strong antiferromagnetic inter-bilayer coupling and tuneable intra-bilayer
coupling from ferro (for W and Mo) to antiferro (for Te). These measurements
have de... | 1903.08512v1 |
2019-03-26 | Instability of Reissner-Nordström-AdS black hole under perturbations of a scalar field coupled to Einstein tensor | We study the instability of a Reissner-Nordstr\"om-AdS (RNAdS) black hole
under perturbations of a massive scalar field coupled to Einstein tensor.
Calculating the potential of the scalar perturbations we find that as the
strength of the coupling of the scalar to Einstein tensor is increasing, the
potential develops a ... | 1903.10850v1 |
2019-03-28 | Self-organized synchronization of mechanically coupled resonators based on optomechanics gain-loss balance | We investigate collective nonlinear dynamics in a blue-detuned optomechanical
cavity that is mechanically coupled to an undriven mechanical resonator. By
controlling the strength of the driving field, we engineer a mechanical gain
that balances the losses of the undriven resonator. This gain-loss balance
corresponds to... | 1903.12162v3 |
2019-04-01 | State-dependent effective interactions in oscillator networks through coupling functions with dead zones | The dynamics of networks of interacting dynamical systems depend on the
nature of the coupling between individual units. We explore networks of
oscillatory units with coupling functions that have "dead zones", that is, the
coupling functions are zero on sets with interior. For such networks, it is
convenient to look at... | 1904.00626v2 |
2019-04-01 | Strong coupling between weakly guided semiconductor nanowire modes and an organic dye | The light-matter coupling between electromagnetic modes guided by a
semiconductor nanowire and excitonic states of molecules localized in its
surrounding media is studied from both classical and quantum perspectives, with
the aim of describing the strong coupling regime. Weakly guided modes (bare
photonic modes) are fo... | 1904.00642v1 |
2019-03-28 | Structure Learning in Coupled Dynamical Systems and Dynamic Causal Modelling | Identifying a coupled dynamical system out of many plausible candidates, each
of which could serve as the underlying generator of some observed measurements,
is a profoundly ill posed problem that commonly arises when modelling real
world phenomena. In this review, we detail a set of statistical procedures for
inferrin... | 1904.03093v2 |
2019-04-11 | Zero-index and Topology in 1D Phononic Metamaterials with Negative Mass and Negative Coupling | Phononic metamaterials have attracted extensive attention since they are
exibly adjustable to control the phonon transmission. In this work, we study a
one-dimensional phononic metamaterial, made of mechanical resonant oscillators
and chiral couplings. We show that by design, the oscillator mass and
inter-oscillator co... | 1904.05716v1 |
2019-04-17 | Updated limits on the CP violating $ηππ$ and $η'ππ$ couplings derived from the neutron EDM | We complete our derivation of upper limits on the CP violating $\eta\pi\pi$
and $\eta'\pi\pi$ couplings from an analysis of their two-loop contributions to
the neutron electric dipole moment (nEDM). We use a phenomenological Lagrangian
approach which is formulated in terms of hadronic degrees of freedom - nucleons
and ... | 1904.08154v1 |
2019-08-08 | Kinetic Relaxation to Entropy Based Coupling Conditions for Isentropic Flow on Networks | We consider networks for isentropic gas and prove existence of weak solutions
for a large class of coupling conditions. First, we construct approximate
solutions by a vector-valued BGK model with a kinetic coupling function.
Introducing so-called kinetic invariant domains and using the method of
compensated compactness... | 1908.03110v2 |
2019-08-20 | Redshift space distortions in the presence of non-minimally coupled dark matter | In this paper, we fully investigate cosmological scenarios in which dark
matter is non-minimally coupled to an extra scalar degree of freedom. The
interaction is realized by means of conformal and disformal terms in the
transformed gravitational metric. Considering linear perturbation theory, we
show that the growth ra... | 1908.07173v1 |
2019-08-21 | Cross frequency coupling in next generation inhibitory neural mass models | Coupling among neural rhythms is one of the most important mechanisms at the
basis of cognitive processes in the brain. In this study we consider a neural
mass model, rigorously obtained from the microscopic dynamics of an inhibitory
spiking network with exponential synapses, able to autonomously generate
collective os... | 1908.07954v1 |
2019-11-04 | Photon-Pressure Strong-Coupling between two Superconducting Circuits | The nonlinear, parametric coupling between two harmonic oscillators has been
used in the field of optomechanics for breakthrough experiments regarding the
control and detection of mechanical resonators. Although this type of
interaction is an extremely versatile resource and not limited to coupling
light fields to mech... | 1911.01262v2 |
2019-11-18 | Advent of Extreme Events in Predator Populations | We study the dynamics of a ring of patches with vegetation-prey-predator
populations, coupled through interactions of the Lotka-Volterra type. We find
that the system yields aperiodic, recurrent and rare explosive bursts of
predator density in a few isolated spatial patches from time to time. Further,
the collective pr... | 1911.07775v1 |
2019-12-05 | Optomechanical cavity without a Stokes side-band | We investigate a theoretical demonstration of perfect frequency conversion in
an optomechanical system in the weak coupling regime without a Stokes
side-band. An optomechanical cavity illuminated by a weak probe field generates
two side-modes, differentiating from the original signal by a phonon frequency.
We report th... | 1912.02530v1 |
2019-12-12 | On the root count of algebraic Kuramoto equations in cycle networks with uniform coupling | The Kuramoto model is a classical model used in the study of spontaneous
synchronizations in networks of coupled oscillators. In this model, frequency
synchronization configurations can be formulated as complex solutions to a
system of algebraic equations. Recently, upper bounds to the number of
frequency synchronizati... | 1912.06241v1 |
2019-12-13 | The effect of an anomalous Higgs trilinear self-coupling on the h to gamma Z decay | We compute the two-loop effects induced by an anomalous Higgs trilinear
self-coupling in the partial decay width h to gamma Z. The computation is
performed using the anomalous coupling approach working in the unitary gauge
and in a theory in which the anomalous coupling is generated via the addition
to the scalar poten... | 1912.06429v1 |
2019-12-24 | A Special Class of the Scalar-Tensor Gravity with Scalar-Matter Direct Coupling | A role of the scalar-matter direct coupling in the evolution of scalar-tensor
gravity was studied. If the coupling functions in the generalized scalar-tensor
gravity satisfy a definite equation the scalar-tensor gravity is reduced to
Einstein's tensor gravity. We consider the issue in Jordan frame and then
Einstein fra... | 1912.11227v1 |
2019-12-26 | Dynamical switching of lasing emission by exceptional point modulation in coupled microcavities | In a non-Hermitian optical system with loss and gain, an exceptional point
(EP) will arise under specific parameters where the eigenvalues and eigenstates
exhibit simultaneous coalescence. Here we report a dynamical switching of
lasing behavior in a non-Hermitian system composed of coupled microcavities by
modulating t... | 1912.11765v1 |
2015-08-03 | Flight of a heavy particle nonlinearly coupled to a quantum bath | Fluctuation and dissipation are by-products of coupling to the `environment.'
The Caldeira-Leggett model, a successful paradigm of quantum Brownian motion,
views the environment as a collection of harmonic oscillators linearly coupled
to the system. However, symmetry considerations may forbid a linear coupling,
e.g. fo... | 1508.00582v2 |
2015-08-04 | Spin structure of harmonically trapped one-dimensional atoms with spin-orbit coupling | We introduce a theoretical approach to determine the spin structure of
harmonically trapped atoms with two-body zero-range interactions subject to an
equal mixture of Rashba and Dresselhaus spin-orbit coupling created through
Raman coupling of atomic hyperfine states. The spin structure of bosonic and
fermionic two-par... | 1508.00932v1 |
2015-08-05 | Constraints on scalar coupling to electromagnetism | We review a possible non-minimal coupling (dilatonic) of a scalar field
(axion like particle) to electromagnetism, through experimental and
observational constraints. Such a coupling is motivated from recent quasar
spectrum observations that indicate a possible spatial and/or temporal
variation of the fine-structure co... | 1508.00985v3 |
2015-08-07 | Proximate transition temperatures amplify linear magnetoelectric coupling in strain-disordered multiferroic BiMnO3 | We report a giant linear magnetoelectric coupling in strained BiMnO3 thin
films in which the disorder associated with an islanded morphology gives rise
to extrinsic relaxor ferroelectricity that is not present in bulk
centrosymmetric ferromagnetic crystalline BiMnO3. Strain associated with the
disorder is treated as a ... | 1508.01744v1 |
2015-08-21 | Stability of optimal-wave-front-sample coupling under sample translation and rotation | The method of wavefront shaping to control optical properties of opaque media
is a promising technique for authentication applications. One of the main
challenges of this technique is the sensitivity of the wavefront-sample
coupling to translation and/or rotation. To better understand how translation
and rotation affec... | 1508.05366v1 |
2015-08-24 | Slot-Mode Optomechanical Crystals: A Versatile Platform for Multimode Optomechanics | We demonstrate slot-mode optomechanical crystals, a class of device in which
photonic and phononic crystal nanobeam resonators separated by a narrow slot
are coupled through optomechanical interactions. In these geometries, nanobeam
pairs are patterned so that a mechanical breathing mode is confined at the
center of on... | 1508.05919v1 |
2015-08-27 | Tunable coupling of transmission-line microwave resonators mediated by an rf SQUID | We realize tunable coupling between two superconducting transmission line
resonators. The coupling is mediated by a non-hysteretic rf SQUID acting as a
flux-tunable mutual inductance between the resonators. From the mode distance
observed in spectroscopy experiments, we derive a coupling strength ranging
between -320MH... | 1508.06758v2 |
2016-03-11 | Proximity effect and Majorana bound states in clean semiconductor nanowires coupled to disordered superconductors | We study a semiconductor wire with strong spin-orbit coupling, which is
proximity-coupled to a superconductor with chemical potential disorder. When
tunneling at the semiconductor- superconductor interface is very weak, it is
known that disorder in the superconductor does not affect the induced
superconductivity nor, t... | 1603.03780v1 |
2016-03-18 | Skyrmionic vortex lattices in coherently coupled three-component Bose-Einstein condensates | We show numerically that a harmonically trapped and coherently Rabi-coupled
three-component Bose-Einstein condensate can host unconventional vortex
lattices in its rotating ground state. The discovered lattices incorporate
square and zig-zag patterns, vortex dimers and chains, and doubly quantized
vortices, and they ca... | 1603.05813v2 |
2016-10-04 | Double-temperature ratchet model and current reversal of coupled Brownian motors | On the basis of the transport features and experimental phenomena observed in
studies of molecular motors, we proposea double-temperature ratchet model of
coupled motors to reveal the dynamical mechanism of cooperative transport of
motors with two heads, where the interactions and asynchrony between two motor
heads are... | 1610.00830v3 |
2016-10-04 | Interlayer coupling in commensurate and incommensurate bilayer structures of transition metal dichalcogenides | The interlayer couplings in commensurate and incommensurate bilayer
structures of transition metal dichalcogenides are investigated with
perturbative treatment. The interlayer coupling in \pm K valleys can be
decomposed into a series of hopping terms with distinct phase factors. In
H-type and R-type commensurate bilaye... | 1610.00869v2 |
2016-10-04 | Corrector estimates for a thermo-diffusion model with weak thermal coupling | The present work deals with the derivation of corrector estimates for the
two-scale homogenization of a thermo-diffusion model with weak thermal coupling
posed in a heterogeneous medium endowed with periodically arranged
high-contrast microstructures. The terminology "weak thermal coupling" refers
here to the variable ... | 1610.00945v1 |
2016-10-13 | Strong coupling constant of negative parity octet baryons with light pseudoscalar mesons in light cone QCD sum rules | The strong coupling constants of the $\pi$ and $K$ mesons with negative
parity octet baryons are estimated within the light cone QCD sum rules. It is
observed that all strong coupling constants, similar to the case for the
positive parity baryons, can be described in terms of three invariant
functions, where two of the... | 1610.03979v1 |
2016-10-17 | The coupling of Poisson sigma models to topological backgrounds | We extend the coupling to the topological backgrounds, recently worked out
for the 2-dimensional BF-model, to the most general Poisson sigma models. The
coupling involves the choice of a Casimir function on the target manifold and
modifies the BRST transformations. This in turn induces a change in the BRST
cohomology o... | 1610.05659v2 |
2016-10-21 | Transportation inequalities for non-globally dissipative SDEs with jumps via Malliavin calculus and coupling | By using the mirror coupling for solutions of SDEs driven by pure jump L\'evy
processes, we extend some transportation and concentration inequalities, which
were previously known only in the case where the coefficients in the equation
satisfy a global dissipativity condition. Furthermore, by using the mirror
coupling f... | 1610.06916v3 |
2016-10-25 | Spectator Higgs, large-scale gauge fields and the non-minimal coupling to gravity | Even if the Higgs field does not affect the evolution of the background
geometry, its massive inhomogeneities induce large-scale gauge fields whose
energy density depends on the slow-roll parameters, on the effective scalar
mass and, last but not least, on the dimensionless coupling to the space-time
curvature. Since t... | 1610.07977v2 |
2016-10-25 | Sextet Model with Wilson Fermions | We present new results from our ongoing study of the SU(3) sextet model with
two flavors in the two-index symmetric representation of the gauge group. In
the simulations use unimproved Wilson fermions to investigate the infrared
properties of the model. We have previously presented results for the spectrum
of the model... | 1610.08072v2 |
2016-10-26 | Fano lines in the reflection spectrum of directly coupled systems of waveguides and cavities: measurements, modeling and manipulation of the Fano asymmetry | We measure and analyze reflection spectra of directly coupled systems of
waveguides and cavities. The observed Fano lines offer insight in the
reflection and coupling processes. Very different from side-coupled systems,
the observed Fano line shape is not caused by the termini of the waveguide, but
the coupling process... | 1610.08351v2 |
2016-10-27 | Coupling constant corrections in a holographic model of heavy ion collisions | We initiate a holographic study of coupling-dependent heavy ion collisions by
analysing for the first time the effects of leading-order, inverse coupling
constant corrections. In the dual description, this amounts to colliding
gravitational shock waves in a theory with curvature-squared terms. We find
that at intermedi... | 1610.08976v2 |
2016-12-14 | First-principles study of intersite magnetic couplings in NdFe$_{12}$ and NdFe$_{12}$X (X = B, C, N, O, F) | We present a first-principles investigation of NdFe$_{12}$ and NdFe$_{12}$X
(X = B, C, N, O, F) crystals with the ThMn$_{12}$ structure. Intersite magnetic
couplings in these compounds, so-called exchange couplings, are estimated by
Liechtenstein's method. It is found that the Nd--Fe couplings are sensitive to
the inte... | 1612.04478v5 |
2016-12-14 | Scattering of an electronic wave packet by a one-dimensional electron-phonon-coupled structure | We investigate the scattering of an electron by phonons in a small structure
between two one-dimensional tight-binding leads. This model mimics the quantum
electron transport through atomic wires or molecular junctions coupled to
metallic leads. The electron-phonon coupled structure is represented by the
Holstein model... | 1612.04665v1 |
2016-12-19 | The appropriateness of ignorance in the inverse kinetic Ising model | We develop efficient ways to consider and correct for the effects of hidden
units for the paradigmatic case of the inverse kinetic Ising model with fully
asymmetric couplings. We identify two sources of error in reconstructing the
connectivity among the observed units while ignoring part of the network. One
leads to a ... | 1612.06185v1 |
2016-12-27 | Parametric strong mode-coupling in carbon nanotube mechanical resonators | Carbon nanotubes (CNTs) have attracted much attention for use in
nanomechanical devices because of their exceptional properties, such as large
resonant frequencies, low mass, and high quality factors. Here, we report the
first experimental realization of parametric strong coupling between two
mechanical modes on a sing... | 1612.08594v1 |
2016-12-29 | Enhancing energy harvesting by coupling monostable oscillators | The performance of a ring of linearly coupled, monostable nonlinear
oscillators is optimized towards its goal of acting as energy
harvester---through piezoelectric transduction---of mesoscopic fluctuations,
which are modeled as Ornstein--Uhlenbeck noises. For a single oscillator, the
maximum output voltage and overall ... | 1612.09209v1 |
2017-07-05 | Dark forces coupled to non-conserved currents | New light vectors with dimension-4 couplings to Standard Model states have
(energy / vector mass)^2 enhanced production rates unless the current they
couple to is conserved. These processes allow us to derive new constraints on
the couplings of such vectors, that are significantly stronger than the
previous literature ... | 1707.01503v3 |
2017-07-08 | Interaction-induced exotic vortex states in an optical lattice clock with spin-orbit coupling | Motivated by a recent experiment [L. F. Livi, et al., Phys. Rev. Lett. 117,
220401(2016)], we study the ground-state properties of interacting fermions in
a one-dimensional optical lattice clock with spin-orbit coupling. As the
electronic and the hyperfine-spin states in the clock-state manifolds can be
treated as effe... | 1707.02379v2 |
2017-07-18 | Resurgence of oscillation in coupled oscillators under delayed cyclic interaction | This paper investigates the emergence of amplitude death and revival of
oscillations from the suppression states in a system of coupled dynamical units
interacting through delayed cyclic mode. In order to resurrect the oscillation
from amplitude death state, we introduce asymmetry and feedback parameter in
the cyclic c... | 1707.05472v1 |
2017-07-19 | Exact Bloch oscillations in optical waveguide arrays with arbitrary long-range coupling | We find the exact Bloch oscillations in zigzag arrays of curved optical
waveguides under the influence of arbitrary long-range coupling. The curvature
induces a linear transverse potential gradient in the equations of the light
evolution. In the case of arrays with second-order coupling, steady states can
be obtained a... | 1707.06181v1 |
2017-07-24 | Probing the imprints of generalized interacting dark energy on the growth of perturbations | We extensively study the evolution and distinct signatures of cosmological
models, in which dark energy interacts directly with dark matter. We first
focus on the imprints of these coupled models on the cosmic microwave
background temperature power spectrum, in which we discuss the multipole peak
separation together wi... | 1707.07667v2 |
2017-11-03 | Probing electron-phonon interactions in the charge-photon dynamics of cavity-coupled double quantum dots | Electron-phonon coupling is known to play an important role in the charge
dynamics of semiconductor quantum dots. Here we explore its role in the
combined charge-photon dynamics of cavity-coupled double quantum dots. Previous
work on these systems has shown that strong electron-phonon coupling leads to a
large contribu... | 1711.01179v1 |
2017-11-06 | Refinements of the Bottom and Strange MSSM Higgs Yukawa Couplings at NNLO | We extend the already existing two-loop calculation of the effective
bottom-Yukawa coupling in the MSSM. In addition to the resummation of the
dominant corrections for large values of tg$\beta$, we include the subleading
terms related to the trilinear Higgs coupling $A_b$ and contributions induced
by the electroweak ga... | 1711.02555v3 |
2017-11-09 | Synchronization in Networks with Strongly Delayed Couplings | We investigate the stability of synchronization in networks of dynamical
systems with strongly delayed connections. We obtain strict conditions for
synchronization of periodic and equilibrium solutions. In particular, we show
the existence of a critical coupling strength $\kappa_{c}$, depending only on
the network stru... | 1711.03422v1 |
2017-11-10 | A global view on the Higgs self-coupling at lepton colliders | We perform a global effective-field-theory analysis to assess the precision
on the determination of the Higgs trilinear self-coupling at future lepton
colliders. Two main scenarios are considered, depending on whether the
center-of-mass energy of the colliders is sufficient or not to access Higgs
pair production proces... | 1711.03978v1 |
2017-11-11 | Constraints on scalar-tensor theory of gravity by the recent observational results on gravitational waves | The speed of gravitational waves provides us a new tool to test alternative
theories of gravity. The constraint on the speed of gravitational waves from
GW170817 and GRB170817A is used to test some classes of Horndeski theory. In
particular, we consider the coupling of a scalar field to Einstein tensor and
the coupling... | 1711.04102v2 |
2017-11-15 | Shortcut to adiabatic light transfer in waveguide couplers with a sign flip in the phase mismatch | Employing counterdiabatic shortcut to adiabaticity (STA), we design shorter
and robust achromatic two- and three- waveguide couplers. We assume that the
phase mismatch between the waveguides has a sign flip at maximum coupling,
while the coupling between the waveguides has a smooth spatial shape. We show
that the prese... | 1711.05507v1 |
2017-11-17 | Cosmological abundance of the QCD axion coupled to hidden photons | We study the cosmological evolution of the QCD axion coupled to hidden
photons. For a moderately strong coupling, the motion of the axion field leads
to an explosive production of hidden photons by tachyonic instability. We use
lattice simulations to evaluate the cosmological abundance of the QCD axion. In
doing so, we... | 1711.06590v2 |
2017-11-20 | Anisotropic Inflation with Derivative Couplings | We study anisotropic inflationary solutions when the inflaton and its
derivative couple to a vector field. This type of coupling is motivated by
D-brane inflationary models, in which the inflaton, and a vector field living
on the D-brane, couple disformally (derivatively). We start by studying a
phenomenological model ... | 1711.07450v2 |
2017-11-22 | Topological Hall effect from strong to weak coupling | Topological Hall effect (THE) of electrons coupled to a noncoplanar spin
texture has been studied so far for the strong- and weak-coupling regimes
separately; the former in terms of the Berry phase and the latter by
perturbation theory. In this letter, we present a unified treatment in terms of
spin gauge field by cons... | 1711.08366v1 |
2017-11-28 | Higgs-Inflaton Mixing and Vacuum Stability | The quartic and trilinear Higgs field couplings to an additional real scalar
are renormalizable, gauge and Lorentz invariant. Thus, on general grounds, one
expects such couplings between the Higgs and an inflaton in quantum field
theory. In particular, the (often omitted) trilinear coupling is motivated by
the need for... | 1711.10554v1 |
2017-11-29 | Electromagnetically induced transparency and nonlinear pulse propagation in a combined tripod and $Λ$ atom-light coupling scheme | We consider propagation of a probe pulse in an atomic medium characterized by
a combined tripod and Lambda ($\Lambda$) atom-light coupling scheme. The scheme
involves three atomic ground states coupled to two excited states by five light
fields. It is demonstrated that dark states can be formed for such an
atom-light c... | 1711.11076v1 |
2018-10-16 | Induced spin-orbit coupling in silicon thin films by bismuth doping | We demonstrate an enhancement of the spin-orbit coupling in silicon (Si) thin
films by doping with bismuth (Bi), a heavy metal, using ion implantation.
Quantum corrections to conductance at low temperature in phosphorous-doped Si
before and after Bi implantation is measured to probe the increase of the
spin-orbit coupl... | 1810.06878v1 |
2019-04-30 | Point-Particle Catalysis | We use the point-particle effective field theory (PPEFT) framework to
describe particle-conversion mediated by a flavour-changing coupling to a
point-particle. We do this for a toy model of two non-relativistic scalars
coupled to the same point-particle, on which there is a flavour-violating
coupling. It is found that ... | 1905.00103v1 |
2019-05-01 | Lyapunov Analysis of Chimera States in Globally Coupled Stuart-Landau oscillators | Oscillatory systems with long-range or global coupling offer promising
insight into the interplay between high-dimensional (or microscopic) chaotic
motion and collective interaction patterns. Within this paper, we use Lyapunov
analysis to investigate whether chimera states in globally coupled
Stuart-Landau (SL) oscilla... | 1905.00218v1 |
2019-05-02 | Strong photon coupling to the quadrupole moment of an electron in solid state | The implementation of circuit quantum electrodynamics allows coupling distant
qubits by microwave photons hosted in on-chip superconducting resonators.
Typically, the qubit-photon interaction is realized by coupling the photons to
the electric dipole moment of the qubit. A recent proposal suggests storing the
quantum i... | 1905.00846v1 |
2019-05-15 | Accurate metasurface synthesis incorporating near-field coupling effects | One of the most promising metasurface architectures for the microwave and
terahertz frequency ranges consists of three patterned metallic layers
separated by dielectrics. Such metasurfaces are well suited to planar
fabrication techniques and their synthesis is facilitated by modelling them as
impedance sheets separated... | 1905.06475v1 |
2019-05-17 | Manifestation of the Purcell effect in current transport through a dot-cavity-QED system | We study the transport properties of a wire-dot system coupled to a cavity
and a photon reservoir. Tuning the photon energy, Rabi-resonant states emerge
and in turn resonant current peaks are observed. We demonstrate the effects of
the cavity-photon reservoir coupling, the mean photon number in the reservoir,
the elect... | 1905.07492v1 |
2019-05-20 | Coupling Matrix Representation of Nonreciprocal Filters Based on Time Modulated Resonators | This paper addresses the analysis and design of non-reciprocal filters based
on time modulated resonators. We analytically show that time modulating a
resonator leads to a set of harmonic resonators composed of the unmodulated
lumped elements plus a frequency invariant element that accounts for
differences in the reson... | 1905.08340v1 |
2020-06-03 | Quasi phase reduction of all-to-all strongly coupled $λ-ω$ oscillators near incoherent states | The dynamics of an ensemble of $N$ weakly coupled limit-cycle oscillators can
be captured by their $N$ phases using standard phase reduction techniques.
However, it is a phenomenological fact that all-to-all strongly coupled
limit-cycle oscillators may behave as "quasiphase oscillators", evidencing the
need of novel re... | 2006.02159v2 |
2020-06-15 | Minimal gauge invariant couplings at order $α'^3$: NS-NS fields | Removing the field redefinitions, the Bianchi identities and the total
derivative freedoms from the general form of gauge invariant NS-NS couplings at
order $\alpha'^3$, we have found that the minimum number of independent
couplings is 872. We find that there are schemes in which there is no term with
structures $R,\,R... | 2006.09193v2 |
2020-06-17 | Magnon Polarons induced by a magnetic field gradient | In this work, we report the theoretical possibility of generating magnon
polaron excitations through a space-varying magnetic field. The spatial
dependence of the magnetic field in the Zeeman interaction gives rise to a
magnon-phonon coupling when a magnetic field gradient is applied, and such a
coupling depends direct... | 2006.09839v1 |
2020-06-24 | The Effect of Coupling Memory and Block Length on Spatially Coupled Serially Concatenated Codes | Spatially coupled serially concatenated codes (SC-SCCs) are a class of
spatially coupled turbo-like codes, which have a close-to-capacity performance
and low error floor. In this paper we investigate the impact of coupling
memory, block length, decoding window size, and number of iterations on the
performance, complexi... | 2006.13396v2 |
2020-06-26 | Surface acoustic wave coupling between micromechanical resonators | The coupling of micro- or nanomechanical resonators via a shared substrate is
intensively exploited to built systems for fundamental studies and practical
applications. So far, the focus has been on devices operating in the kHz regime
with a spring-like coupling. At resonance frequencies above several 10 MHz,
wave prop... | 2006.14862v4 |
2020-06-29 | Erasable signature of Majorana bound state due to coupling with the T-shaped quantum-dot structure | We theoretically study the transport properties in the T-shaped
double-quantum-dot structure, by introducing the Majorana bound state (MBS) to
couple to the dot in the main channel. It is found that the side-coupled dot
governs the effect of the MBS on the transport behavior. When its level is
consistent with the energ... | 2006.15828v2 |
2020-09-01 | Realizing highly entangled states in asymmetrically coupled three NV centers at room temperature | Despite numerous efforts the coupling between randomly arranged multi-NV
centers and also resonators has not been improved significantly mainly due to
our limited knowledge of their entanglement times (2t_ent). Here, we
demonstrate a very strong coupling between three-NV centers by using a
simulated triple electron-ele... | 2009.00570v1 |
2020-09-02 | Realization of programmable nanomechanical lattice with both nearest-neighboring and next-nearest-neighboring couplings | The programmable artificial lattice, based on the controllability of coupling
strengths and the scalability of multiple sites, is desperately desired in
engineering metamaterials and exploring fundamental physics. In this work, we
experimentally present a programmable lattice consisting of multiple paralleled
nanomecha... | 2009.00793v1 |
2020-09-14 | Many-Body Phases of a Planar Bose-Einstein Condensate with Cavity-Induced Spin-Orbit Coupling | We explore the many-body phases of a two-dimensional Bose-Einstein condensate
with cavity-mediated dynamic spin-orbit coupling. By the help of two transverse
non-interfering, counterpropagating pump lasers and a single standing-wave
cavity mode, two degenerate Zeeman sub-levels of the quantum gas are Raman
coupled in a... | 2009.06475v1 |
2020-09-17 | Second Harmonic Generation from a Single Plasmonic Nanorod Strongly Coupled to a WSe2 Monolayer | Monolayer transition metal dichalcogenides, coupled to metal plasmonic
nanocavities, have recently emerged as new platforms for strong light-matter
interactions. These systems are expected to have nonlinear optical properties
that will enable them to be used as entangled photon sources, compact
wave-mixing devices, and... | 2009.08060v1 |
2020-09-17 | Long-Distance Coupling and Energy Transfer between Exciton States in Magnetically Controlled Microcavities | Coupling of quantum emitters in a semiconductor relies, generally, on
short-range dipole-dipole or electronic exchange type interactions.
Consistently, energy transfer between exciton states, that is, electron-hole
pairs bound by Coulomb interaction, is limited to distances of the order of
10~nm. Here, we demonstrate p... | 2009.08554v1 |
2020-09-24 | Constraints on beta functions in field theories | The $\beta$-functions describe how couplings run under the renormalization
group flow in field theories. In general, all couplings that respect the
symmetry and locality are generated under the renormalization group flow, and
the exact renormalization group flow is characterized by the $\beta$-functions
defined in the ... | 2009.11880v5 |
2020-09-28 | A coupled cluster framework for electrons and phonons | We describe a coupled cluster framework for coupled systems of electrons and
phonons. Neutral and charged excitations are accessed via the
equation-of-motion version of the theory. Benchmarks on the Hubbard-Holstein
model allow us to assess the strengths and weaknesses of different coupled
cluster approximations which ... | 2009.13568v2 |
2020-09-30 | Few-Mode Fiber Coupling Efficiency for Free-Space Optical Communication | Few-mode fiber is a significant component of free-space optical communication
at the receiver to obtain achievable high coupling efficiency. A theoretical
coupling model from the free-space optical communication link to a few-mode
fiber is proposed based on a scale-adapted set of Laguerre-Gaussian modes. It
is found th... | 2009.14392v1 |
2021-01-31 | Metropolis-Hastings transition kernel couplings | Couplings play a central role in the analysis of Markov chain convergence and
in the construction of novel Markov chain Monte Carlo estimators, diagnostics,
and variance reduction techniques. The set of possible couplings is often
intractable, frustrating the search for tight bounds and efficient estimators.
To address... | 2102.00366v6 |
2021-02-02 | Coupled spin-orbital fluctuations in a three orbital model for $4d$ and $5d$ oxides with electron fillings $n=3,4,5$ -- Application to $\rm NaOsO_3$, $\rm Ca_2RuO_4$, and $\rm Sr_2IrO_4$ | A unified approach is presented for investigating coupled spin-orbital
fluctuations within a realistic three-orbital model for strongly spin-orbit
coupled systems with electron fillings $n=3,4,5$ in the $t_{2g}$ sector of
$d_{yz},d_{xz},d_{xy}$ orbitals. A generalized fluctuation propagator is
constructed which is cons... | 2102.01400v2 |
2021-02-04 | Strong coupling of alkali spins to noble-gas spins with hour-long coherence time | Nuclear spins of noble gases can maintain coherence for hours at ambient
conditions owing to their extraordinary isolation by the enclosing, complete
electronic shells. This isolation, however, impedes the ability to manipulate
and control them by optical means or by physical coupling to other spin gases.
Here we exper... | 2102.02797v2 |
2021-02-06 | Study on the simulation control of neural network algorithm in thermally coupled distillation | Thermally coupled distillation is a new energy-saving method, but the
traditional thermally coupled distillation simulation calculation process is
complicated, and the optimization method based on the traditional simulation
process is difficult to obtain a good feasible solution. The neural network
algorithm has the ad... | 2102.03506v1 |
2021-02-07 | Extended collinearly-improved Balitsky-Kovchegov evolution equation in target rapidity | An extended collinearly-improved Balitsky-Kovchegov evolution equation in the
target rapidity representation is derived by including the running coupling
corrections during the expansion of the "real" $S$-matrix. We find that the
running coupling brings important corrections to the evolution equation, as one
can see th... | 2102.03789v1 |
2021-02-10 | Suppression of effective spin-orbit coupling by thermal fluctuations in spin-orbit coupled antiferromagnets | We apply the finite-temperature variational cluster approach to a strongly
correlated and spin-orbit coupled model for four electrons (i.e. two holes) in
the $t_{2g}$ subshell. We focus on parameters suitable for antiferromagnetic
Mott insulators, in particular Ca$_2$RuO$_4$, and identify a crossover from the
low-tempe... | 2102.05489v1 |
2021-02-19 | Effects of Coulomb Coupling On Friction In Strongly Magnetized Plasmas | The friction force on a test particle traveling through a plasma that is both
strongly coupled and strongly magnetized is studied using molecular dynamics
simulations. In addition to the usual stopping power component aligned
antiparallel to the velocity, a transverse component that is perpendicular to
both the velocit... | 2102.10147v1 |
2013-06-19 | Embedding Zprime models in SO(10) GUTs | We embed a theory with Zprime gauge boson (related to extra U(1) gauge group)
into a supersymmetric GUT theory based on SO(10). Two possible sequences of
SO(10) breaking via VEVs of appropriate Higgs fields are considered. Gauge
coupling unification provides constraints on low energy values of two
additional gauge coup... | 1306.4517v1 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.