publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2022-01-11 | Cavity engineering of Hubbard $U$ via phonon polaritons | Pump-probe experiments have suggested the possibility to control electronic
correlations by driving infrared-active phonons with resonant midinfrared laser
pulses. In this work we study two possible microscopic nonlinear
electron-phonon interactions behind these observations, namely coupling of the
squared lattice disp... | 2201.04128v2 |
2022-02-09 | Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in Weyl semimetals with tilted energy dispersion | Ruderman-Kittel-Kasuya-Yosida (RKKY) is an essential long range magnetic
interaction between magnetic impurities or magnetic layered structures, the
magnitude of which oscillates with the distance ($\mathrm{R}$) between them. We
have investigated the RKKY interaction between two magnetic impurities in both
time-reversa... | 2202.04437v1 |
2022-02-21 | Polarized $Z$ cross sections in Higgsstrahlung for the determination of anomalous $ZZH$ couplings | The production of a Higgs boson in association with a $Z$ at an
electron-positron collider is one of the cleanest methods for the measurement
of the couplings of the Higgs boson. In view of the large production cross
section at energies a little above the threshold, it seems feasible to make a
more detailed study of th... | 2202.10215v1 |
2022-02-24 | Correlation between spin-phonon coupling and magneto-electric effects in CoFe2O4/PMN-PT nanocomposite: Raman Spectroscopy and XMCD study | We have investigated the coupling of lattice with spin via strain
interactions in the CoFe2O4/PMN-PT composite system. X-ray diffraction and
Raman spectroscopic studies illustrate a remarkable modification in
CoFe2O4lattice across Curie temperature (450 K) of PMN-PT. Subsequently,
CoFe2O4/PMN-PT composite reveals a sud... | 2202.11986v1 |
2022-03-11 | Phonon-Mediated Attractive Interactions between Excitons in Lead-Halide-Perovskites | Understanding the origin of electron-phonon coupling in lead-halide
perovskites (LHP) is key to interpreting and leveraging their optical and
electronic properties. Here we perform femtosecond-resolved, optical-pump,
electron-diffraction-probe measurements to quantify the lattice reorganization
occurring as a result of... | 2203.06286v1 |
2022-04-05 | Giant-cavity-based quantum sensors with enhanced performance | Recent progresses have revealed that quantum systems with multiple
position-dependent couplings, e.g., giant atoms, can exhibit some
unconventional phenomena, such as non-exponential decay etc. However, their
potential applications are still open questions. In this paper, we propose a
giant-cavity-based quantum sensor ... | 2204.02044v1 |
2022-04-22 | Quantum-classical correspondence in spin-boson equilibrium states at arbitrary coupling | The equilibrium properties of nanoscale systems can deviate significantly
from standard thermodynamics due to their coupling to an environment. For the
generalised $\theta$-angled spin-boson model, we first derive a compact and
general form of the classical equilibrium state including environmental
corrections to all o... | 2204.10874v3 |
2022-05-03 | Complex dynamics of a heterogeneous network of Hindmarsh-Rose neurons | In this contribution, we have considered the collective behavior of the two
as well as the network of heterogeneous coupled Hindmarsh Rose (HR) neurons.
The heterogeneous models were made of a memristive 2D (HR) and the traditional
3D HR neurons. Investigating a model of two coupled neurons through an
electrical synaps... | 2205.01790v1 |
2022-05-13 | Dressing due to correlations strongly reduces the effect of electron-phonon coupling | We investigate the difference between the coupling of a bare carrier to
phonons versus the coupling of a correlations-dressed quasiparticle to phonons,
and show that latter may be weak even if the former is strong. Specifically, we
analyze the effect of the hole-phonon coupling on the dispersion of the
quasiparticle th... | 2205.06909v1 |
2022-05-16 | Strong supernovae bounds on ALPs from quantum loops | We show that in theories of axionlike particles (ALPs) coupled to electrons
at tree-level, the one-loop effective coupling to photons is process dependent:
the effective coupling relevant for decay processes,
$g_{a\gamma}^{\text{(D)}}$, differs significantly from the coupling appearing
in the phenomenologically importa... | 2205.07896v2 |
2022-05-19 | Quantum Otto cycle under strong coupling | Quantum heat engines are often discussed under the weak coupling assumption
that the interaction between the system and the reservoirs is negligible.
Although this setup is easier to analyze, this assumption cannot be justified
on the quantum scale. In this study, a quantum Otto cycle model that can be
generally applie... | 2205.09400v3 |
2022-05-25 | Theory of strong coupling between molecules and surface plasmons on a grating | The strong coupling of molecules with surface plasmons results in hybrid
states which are part molecule, part surface-bound light. Since molecular
resonances may acquire the spatial coherence of plasmons, which have mm-scale
propagation lengths, strong-coupling with molecular resonances potentially
enables long-range m... | 2205.12745v1 |
2022-05-26 | Qubit Coupling to Reservoir Modes: Engineering the Circuitry to Enhance the Coherence Time | In this study, a circuitry model of the coupling of a qubit to reservoir
modes is defined to clearly determine the effect of the reservoir modes on the
qubit decay and dephasing rates. The main goal is to theoretically calculate
the dephasing and decay rate of a qubit, particularly due to the circuitry
effect. Firstly,... | 2205.13361v1 |
2022-05-30 | Coherently Coupled Mechanical Oscillators in the Quantum Regime | Coupled harmonic oscillators are ubiquitous in physics and play a prominent
role in quantum science. They are a cornerstone of quantum mechanics and
quantum field theory, where second quantization relies on harmonic oscillator
operators to create and annihilate particles. Descriptions of quantum
tunneling, beamsplitter... | 2205.14841v2 |
2022-06-21 | Modulational instability of a Yukawa fluid excitation under the Quasi-localization charged approximation (QLCA) framework | Collective response dynamics of a strongly coupled system departs from the
continuum phase upon transition to the quasicrystalline phase, or formation of
a Wigner lattice. The wave nonlinearity leading to the modulational instability
in recent studies, for example, of a quasicrystalline dusty plasma lattice,
predicts i... | 2206.10134v1 |
2022-06-24 | Dynamical Stability in presence of non-minimal derivative dependent coupling of $k$-essence field with a relativistic fluid | In this paper we investigate a non-minimal, space-time derivative dependent,
coupling between the $k$-essence field and a relativistic fluid using a
variational approach. The derivative coupling term couples the space-time
derivative of the $k$-essence field with the fluid 4-velocity via an inner
product. The inner pro... | 2206.12398v2 |
2022-07-05 | Dissipative Landau-Zener tunneling: crossover from weak to strong environment coupling | Landau-Zener (LZ) tunneling, describing transitions in a two-level system
during a sweep through an anti-crossing, is a model applicable to a wide range
of physical phenomena, such as atomic collisions, chemical reactions, and
molecular magnets, and has been extensively studied theoretically and
experimentally. Dissipa... | 2207.02017v1 |
2022-07-06 | Mesoscopic Collective Activity in Excitatory Neural Fields: Cross-frequency Coupling | In the brain, cross-frequency coupling has been hypothesized to result from
the activity of specialized microcircuits. For example, theta-gamma coupling is
assumed to be generated by specialized cell pairs (PING and ING mechanisms), or
special cells (e.g., fast bursting neurons). However, this implies that the
generati... | 2207.02833v1 |
2022-07-19 | Is the Nicolai map unique? | The Nicolai map is a field transformation that relates supersymmetric
theories at finite couplings $g$ with the free theory at $g=0$. It is obtained
via an ordered exponential of the coupling flow operator integrated from $0$ to
$g$. Allowing multiple couplings, we find that the map in general depends on
the chosen int... | 2207.09471v2 |
2022-07-28 | Collective response in light-matter interactions: The interplay between strong coupling and local dynamics | A model designed to mimic the implications of the collective optical response
of molecular ensembles in optical cavities on molecular vibronic dynamics is
investigated. Strong molecule-radiation field coupling is often reached when a
large number N of molecules respond collectively to the radiation field. In
electronic... | 2207.14215v1 |
2022-08-11 | Interference Between Molecular and Photon Field-Mediated Electron Transfer Coupling Pathways in Cavities | Cavity polaritonics is capturing the imagination of the chemistry community
because of the novel opportunities it creates to direct chemistry. Electron
transfer (ET) reactions are among the simplest reactions, and they also
underpin bioenergetics. As such, new conceptual strategies to manipulate and
direct electron flo... | 2208.05931v1 |
2022-08-27 | Emergence of Order in Dynamical Phases in Coupled Fractional Gauss Map | Dynamical behaviour of discrete dynamical systems has been investigated
extensively in the past few decades. However, in several applications, long
term memory plays an important role in the evolution of dynamical variables.
The definition of discrete maps has recently been extended to fractional maps
to model such sit... | 2208.12910v1 |
2022-09-14 | Optically probing the asymmetric interlayer coupling in rhombohedral-stacked MoS2 bilayer | The interlayer coupling is emerging as a new parameter for tuning the
physical properties of two-dimensional (2D) van der Waals materials. When two
identical semiconductor monolayers are stacked with a twist angle, the periodic
interlayer coupling modulation due to the moir\'e superlattice may endow exotic
physical phe... | 2209.06966v1 |
2022-10-01 | Polaritonic coherent perfect absorption based on strong critical coupling between quasi-bound state in the continuum and exciton | Enhancement of light-matter interactions is of great importance for many
nanophotonic devices, and one way to achieve it is to feed energy perfectly to
the strongly coupled system. Here, we propose gap-perturbed dimerized gratings
based on bulk WS2 for flexible control of the strong coupling between
quasi-bound state i... | 2210.00296v1 |
2022-10-25 | Topological Robust Corner States of a Two-Dimensional Square Lattice with $\mathbf C_{\mathbf 4}$ Symmetry in Fully Coupled Dipolar Arrays | Higher-order topological insulators(HOTIs) is an exciting topic. We
constructed a square lattice dipole arrays, it supports out-of-plane and
in-plane modes by going beyond conventional scalar coupling. In-plane modes
naturally break $\mathrm C_{4}$ symmetry, we only studied the out-of-plane
modes that maintain $\mathrm... | 2210.13844v2 |
2022-11-12 | Electrostatic control of the proximity effect in the bulk of semiconductor-superconductor hybrids | The proximity effect in semiconductor-superconductor nanowires is expected to
generate an induced gap in the semiconductor. The magnitude of this induced
gap, together with the semiconductor properties like the spin-orbit coupling
and $g$\,-\,factor, depends on the coupling between the materials. It is
predicted that t... | 2211.06709v1 |
2022-12-21 | Theoretical concepts and measurement prospects for BSM trilinear couplings: a case study for scalar top quarks | After the possible discovery of new heavy particles at the LHC, it will be
crucial to determine the properties and the underlying physics of the new
states. In this work, we focus on scalar trilinear couplings, employing as an
example the case of the trilinear coupling of scalar partners of the top quark
to the Higgs b... | 2212.11213v2 |
2022-12-21 | Multimodal Emotion Recognition among Couples from Lab Settings to Daily Life using Smartwatches | Couples generally manage chronic diseases together and the management takes
an emotional toll on both patients and their romantic partners. Consequently,
recognizing the emotions of each partner in daily life could provide an insight
into their emotional well-being in chronic disease management. The emotions of
partner... | 2212.13917v1 |
2023-02-20 | Isospin symmetry of $ω$ meson in the soft-wall model of holographic QCD at finite temperature | Coupling constants of $\rho$- and $\omega$- meson-nucleon are related with
each other by isospin relation. In present work, it is aimed at studying the
violation (if it exists) of isospin symmetry of the $\omega$-meson and to study
the temperature dependence of $\omega$-meson-nucleon-delta and
$\omega$-meson-delta coup... | 2302.09889v1 |
2023-02-26 | Spin-Orbit Coupling of Europa's Ice Shell and Interior | Europa is an icy ocean world, differentiated into a floating ice shell and
solid interior, separated by a global ocean. The classical spin-orbit coupling
problem considers a satellite as a single rigid body, but in the case of
Europa, the existence of the subsurface ocean enables independent motion of the
ice shell and... | 2302.13226v3 |
2023-02-27 | Tunable phononic coupling in excitonic quantum emitters | Engineering the coupling between fundamental quantum excitations is at the
heart of quantum science and technologies. A significant case is the creation
of quantum light sources in which coupling between single photons and phonons
can be controlled and harnessed to enable quantum information transduction.
Here, we repo... | 2302.13484v1 |
2023-04-10 | Spin-phonon interactions and magnetoelectric coupling in Co$_4$$B_2$O$_9$ ($B$ = Nb, Ta) | In order to explore the consequences of spin-orbit coupling on spin-phonon
interactions in a set of chemically-similar mixed metal oxides, we measured the
infrared vibrational properties of Co$_4B_2$O$_9$ ($B$ = Nb, Ta) as a function
of temperature and compared our findings with lattice dynamics calculations and
severa... | 2304.04865v1 |
2023-04-15 | Channel Estimation for Multicarrier Systems with Tightly-Coupled Broadband Arrays | This paper develops a linear minimum mean-square error (LMMSE) channel
estimator for single and multicarrier systems that takes advantage of the
mutual coupling in antenna arrays. We model the mutual coupling through
multiport networks and express the single-user multiple-input multiple-output
(MIMO) communication chan... | 2304.07440v1 |
2023-04-23 | Polarized $Z$ cross sections in Higgsstrahlung for the determination of anomalous $ZZH$ couplings | The production of a Higgs boson in association with a $Z$ at an
electron-positron collider is one of the cleanest methods for the measurement
of the couplings of the Higgs boson. In view of the large production cross
section at energies a little above the threshold, it seems feasible to make a
more detailed study of th... | 2304.11573v1 |
2023-05-04 | Versatile parametric coupling between two statically decoupled transmon qubits | Parametric coupling is a powerful technique for generating tunable
interactions between superconducting circuits using only microwave tones. Here,
we present a highly flexible parametric coupling scheme demonstrated with two
transmon qubits, which can be employed for multiple purposes, including the
removal of residual... | 2305.02907v2 |
2023-05-16 | Analytic three-dimensional primary hair charged black holes and thermodynamics | We present and discuss new families of primary hair charged black hole
solutions in asymptotically anti-de Sitter space in three dimensions. The
coupled Einstein-Maxwell-scalar gravity system, that carries the coupling
$f(\phi)$ between the scalar and Maxwell fields is solved, and exact hairy
black hole solutions are o... | 2305.09172v2 |
2023-06-03 | Time-reversible dynamics in a system of two coupled active rotators | We study two coupled active rotators with Kuramoto-type coupling and focus
our attention to specific transitional regimes where the coupling is neither
attractive nor repulsive. We show that certain such situations at the edge of
synchronization can be characterized by the existence of a time-reversal
symmetry of the s... | 2306.02173v2 |
2023-06-19 | Chiral and nonreciprocal single-photon scattering in a chiral-giant-molecule waveguide-QED system | We study chiral and nonreciprocal single-photon scattering in a
chiral-giant-molecule waveguide-QED system. Here, the giant molecule consists
of two coupled giant atoms, which interact with two linear waveguides, forming
a four-port quantum device. We obtain the exact analytical expressions of the
four scattering ampli... | 2306.10957v1 |
2023-06-28 | Superradiance: Axionic Couplings and Plasma Effects | Spinning black holes can transfer a significant fraction of their energy to
ultralight bosonic fields via superradiance, condensing them in a co-rotating
structure or "cloud". This mechanism turns black holes into powerful particle
detectors for bosons with extremely feeble interactions. To explore its full
potential, ... | 2306.16447v2 |
2023-07-03 | Sensitivities on the anomalous quartic $γγγγ$ and $γγγZ$ couplings at the CLIC | It is essential to directly investigate the self-couplings of gauge bosons in
the Standard Model (SM) due to its non-Abelian nature, as these couplings play
a significant role in comprehending the gauge structure of the model. The
discrepancies between the Standard Model's expectations and the measured value
of gauge b... | 2307.01326v2 |
2023-08-03 | Multiscale Simulation of Fluids: Coupling Molecular and Continuum | Computer simulation is an important tool for scientific progress, especially
when lab experiments are either extremely costly and difficult or lack the
required resolution. However, all of the simulation methods come with
limitations. In molecular dynamics (MD) simulation, the length and time scales
that can be capture... | 2308.01669v1 |
2023-09-11 | Coupled-cluster theory for trapped bosonic mixtures | We develop a coupled-cluster theory for bosonic mixtures of binary species in
external traps, providing a promising theoretical approach to demonstrate
highly accurately the many-body physics of mixtures of Bose-Einstein
condensates. The coupled-cluster wavefunction for the binary species is
obtained when an exponentia... | 2309.05240v2 |
2023-09-15 | Bayes-Optimal Estimation in Generalized Linear Models via Spatial Coupling | We consider the problem of signal estimation in a generalized linear model
(GLM). GLMs include many canonical problems in statistical estimation, such as
linear regression, phase retrieval, and 1-bit compressed sensing. Recent work
has precisely characterized the asymptotic minimum mean-squared error (MMSE)
for GLMs wi... | 2309.08404v1 |
2023-09-23 | Adaptive Multiscale Coupling Methods of Molecular Mechanics based on a Unified Framework of a Posteriori Error Estimates | Multiscale coupling methods are significant methodologies for the modeling
and simulation of materials with defects, intending to achieve the
(quasi-)optimal balance of accuracy and efficiency. The a posteriori analysis
and corresponding adaptive algorithms play a crucial role in the efficient
implementation of multisc... | 2309.13255v1 |
2023-09-27 | Delta-alpha cross-frequency coupling for different brain regions | Neural interactions occur on different levels and scales. It is of particular
importance to understand how they are distributed among different
neuroanatomical and physiological relevant brain regions. We investigated
neural cross-frequency couplings between different brain regions according to
the Desikan-Killiany bra... | 2309.15614v1 |
2023-10-04 | Can negative bare couplings make sense? The $\vecφ^4$ theory at large $N$ | Scalar $\lambda\phi^4$ theory in 3+1D, for a positive coupling constant
$\lambda>0$, is known to have no interacting continuum limit, which is referred
to as quantum triviality. However, it has been recently argued that the theory
in 3+1D with an $N$-component scalar $\vec{\phi}$ and a
$(\vec{\phi}\cdot\vec{\phi})^{\,2... | 2310.02516v4 |
2023-10-24 | Photon-mediated long range coupling of two Andreev level qubits | In a superconducting weak link, the supercurrent is carried by Andreev bound
states (ABSs) formed by the phase-coherent reflection of electrons and their
time-reversed partners. A single, highly transmissive ABS can serve as an
ideal, compact two-level system, due to a potentially large energy difference
to the next AB... | 2310.15995v1 |
2023-10-26 | Polarization and third-order Hall effect in III-V semiconductor heterojunctions | We study Berry connection polarizability (BCP) induced electric polarization
and third-order Hall (TOH) effect in a two-dimensional electron/hole gas
(2DEG/2DHG) with Rashba-Dresselhaus (RD) spin-orbit couplings in III-V
semiconductor heterostructures. The electric polarization decreases with the
increase of the Fermi ... | 2310.17371v2 |
2023-11-10 | Strong-coupling superconductivity of the Heusler-type compound ScAu2Al: Ab-initio studies | The ScAu$_2$Al superconducting Heusler-type compound was recently
characterized to have the highest critical temperature of $T_c = 5.12$ K and
the strongest electron-phonon coupling among the Heusler family. In this work,
the electronic structure, phonons, electron-phonon coupling, and
superconductivity of ScAu$_2$Al a... | 2311.06075v3 |
2023-11-24 | Steady-state phases and interaction-induced depletion in a driven-dissipative chirally-coupled dissimilar atomic array | A nanophotonic waveguide coupled with an atomic array forms one of the
strongly-coupled quantum interfaces to showcase many fascinating collective
features of quantum dynamics. In particular for a dissimilar array of two
different interparticle spacings with competing photon-mediated dipole-dipole
interactions and dire... | 2311.14562v1 |
2023-12-05 | Longitudinal (curvature) couplings of an $N$-level qudit to a superconducting resonator at the adiabatic limit and beyond | Understanding how and to what magnitude solid-state qubits couple to metallic
wires is crucial to the design of quantum systems such as quantum computers.
Here, we investigate the coupling between a multi-level system, or qudit, and a
superconducting (SC) resonator's electromagnetic field, focusing on the
interaction i... | 2312.03118v1 |
2023-12-06 | Higgs self-coupling measurements at the FCC-hh | The hadron collider phase of the Future Circular Collider (FCC-hh) is a
proton-proton collider operating at a center-of-mass energy of 100 TeV. It is
one of the most ambitious projects planned for the rest of this century and
offers ample opportunities in the hunt for new physics, both through its direct
detection reac... | 2312.03513v1 |
2023-12-12 | Spatiotemporal visualization of a surface acoustic wave coupled to magnons across a submillimeter-long sample by pulsed laser interferometry | Surface acoustic waves (SAWs) coupled to magnons have attracted much
attention because they allow for the long-range transport of magnetic
information which cannot be achieved by magnon alone. We employed pulsed laser
interferometry to visualize the entire spatiotemporal dynamics of a SAW that
travels on a nickel (Ni) ... | 2312.07029v1 |
2024-02-06 | Magnon mediated spin pumping by coupled ferrimagnetic garnets heterostructure | Spin pumping has significant implications for spintronics, providing a
mechanism to manipulate and transport spins for information processing.
Understanding and harnessing spin currents through spin pumping is critical for
the development of efficient spintronic devices. The use of a magnetic
insulator with low damping... | 2402.03734v1 |
2024-02-07 | Heat transport through an open coupled scalar field theory hosting stability-to-instability transition | We investigate heat transport through a one-dimensional open coupled scalar
field theory, depicted as a network of harmonic oscillators connected to
thermal baths at the boundaries. The non-Hermitian dynamical matrix of the
network undergoes a stability-to-instability transition at the exceptional
points as the couplin... | 2402.04986v1 |
2024-02-24 | Investigating the basis set convergence of diagrammatically decomposed coupled-cluster correlation energy contributions for the uniform electron gas | We investigate the convergence of coupled-cluster correlation energies and
related quantities with respect to the employed basis set size for the uniform
electron gas to gain a better understanding of the basis set incompleteness
error. To this end, coupled-cluster doubles (CCD) theory is applied to the
three dimension... | 2402.15907v1 |
2024-03-14 | Spin-Orbit Coupled Insulators and Metals on the Verge of Kitaev Spin Liquids in Ilmenite Heterostructures | Competition and cooperation between electron correlation and relativistic
spin-orbit coupling give rise to diverse exotic quantum phenomena in solids. An
illustrative example is spin-orbit entangled quantum liquids, which exhibit
remarkable features such as topological orders and fractional excitations. The
Kitaev hone... | 2403.09112v1 |
2004-10-22 | Supernovae type Ia data favour coupled phantom energy | We estimate the constraints that the recent high-redshift sample of
supernovae type Ia put on a phenomenological interaction between dark energy
and dark matter. The interaction can be interpreted as arising from the time
variation of the mass of dark matter particles. We find that the coupling
correlates with the equa... | 0410543v2 |
2000-10-22 | Top Mode Standard Model with Extra Dimensions | We critically examine a version of the top mode standard model recently cast
in extra dimensions by Arkani-Hamed, Cheng, Dobrescu, and Hall, based on the
(improved) ladder Schwinger-Dyson (SD) equation for the D-(=6,8-)-dimensional
gauge theories. We find that the bulk QCD cannot have larger coupling beyond
the non-tri... | 0010260v5 |
2006-02-07 | Phase Diagram of N=4 Super-Yang-Mills Theory with R-Symmetry Chemical Potentials | The phase diagram of large Nc, weakly-coupled N=4 supersymmetric Yang-Mills
theory on a three-sphere with non-zero chemical potentials is examined. In the
zero coupling limit, a transition line in the mu-T plane is found, separating a
"confined" phase in which the Polyakov loop has vanishing expectation value
from a "d... | 0602074v3 |
2007-11-27 | Kondo Effect in Spin Chains | The free electron Kondo problem can be described by a one-dimensional (1D)
model because only the s-wave part of the electronic wave-function is affected
by the Kondo coupling. Since only the spin degrees of freedom are involved in
the Kondo interaction, and due to spin-charge separation in 1D, the universal
low energy... | 0711.4350v1 |
2010-06-04 | Coupled dark matter-dark energy in light of near Universe observations | Cosmological analysis based on currently available observations are unable to
rule out a sizeable coupling among the dark energy and dark matter fluids. We
explore a variety of coupled dark matter-dark energy models, which satisfy
cosmic microwave background constraints, in light of low redshift and near
universe obser... | 1006.0877v2 |
2011-03-16 | Running coupling: Does the coupling between dark energy and dark matter change sign during the cosmological evolution? | In this paper we put forward a running coupling scenario for describing the
interaction between dark energy and dark matter. The dark sector interaction in
our scenario is free of the assumption that the interaction term $Q$ is
proportional to the Hubble expansion rate and the energy densities of dark
sectors. We only ... | 1103.3185v3 |
2013-10-26 | Triply-resonant micro-optical parametric oscillators based on Kerr nonlinearity: nonlinear loss, unequal resonance-port couplings, and coupled-cavity implementations | We develop a theoretical model of triply-resonant optical parametric
oscillators (OPOs) based on degenerate four-wave mixing (FWM) that includes
physics and degrees of freedom relevant to microphotonic (on-chip) device
implementations, including nonlinear loss, a general resonant mode field
structure, and mode-selectiv... | 1310.7078v2 |
2014-10-24 | Reducing Cascading Failure Risk by Increasing Infrastructure Network Interdependency | Increased coupling between critical infrastructure networks, such as power
and communication systems, will have important implications for the reliability
and security of these systems. To understand the effects of power-communication
coupling, several have studied interdependent network models and reported that
increa... | 1410.6836v3 |
2014-11-21 | Phenomenology of Induced Electroweak Symmetry Breaking | We study the phenomenology of models of electroweak symmetry breaking where
the Higgs potential is dominated by a positive quadratic term destabilized by a
tadpole arising from the coupling to an "auxiliary" Higgs sector. The auxiliary
Higgs sector can be either perturbative or strongly coupled, similar to
technicolor ... | 1411.6023v1 |
2014-11-26 | Reduction of couplings and its application in particle physics, Finite theories, Higgs and top mass predictions | In this report we tell the story of the notion "reduction of couplings" as we
witnessed it in the course of time. Born as an innocent child of
renormalization theory it first served the study of asymptotic behavior of
several couplings in a given model. Reduced couplings appeared as functions of
a primary one, compatib... | 1411.7155v2 |
2015-05-05 | An Exploratory study of Higgs-boson pair production | Higgs-boson pair production is well known being capable to probe the
trilinear self-coupling of the Higgs boson, which is one of the important
ingredients of the Higgs sector itself. Pair production then depends on the
top-quark Yukawa coupling $g_t^{S,P}$, Higgs trilinear coupling $\lambda_{3H}$,
and a possible dim-5 ... | 1505.00957v4 |
2015-05-29 | Microscopic Theory for Coupled Atomistic Magnetization and Lattice Dynamics | A coupled atomistic spin and lattice dynamics approach is developed which
merges the dynamics of these two degrees of freedom into a single set of
coupled equations of motion. The underlying microscopic model comprises local
exchange interactions between the electron spin and magnetic moment and the
local couplings bet... | 1505.08005v3 |
2015-11-23 | Cosmology and Quantum Field Theory II: Study of an extended Nambu-Jona-Lasinio model with a Dynamical Coupling | We study the cosmological implications of the Nambu-Jona-Lasinio (NJL model)
when the coupling constant is field dependent. The NJL model has a four-fermion
interaction describing two different phases due to quantum interaction effects
and determined by the strength of the coupling constant g. It describes
massless fer... | 1511.07368v1 |
2013-08-20 | Macroscopic Quantum Phenomena from the Coupling Pattern and Entanglement Structure Perspective | We explore in this paper ways to qualify and quantify the quantum
entanglement $E(M)$ between two macroscopic objects by way of model studies.
Knowing that a macroscopic object is a composite, how does one determine $E(M)$
in terms of the entanglements between its micro-constituents $E(\mu)$? We
assert that the notion ... | 1308.4225v1 |
2014-03-22 | Partitioning strategies for the interaction of a fluid with a poroelastic material based on a Nitsche's coupling approach | We develop a computational model to study the interaction of a fluid with a
poroelastic material. The coupling of Stokes and Biot equations represents a
prototype problem for these phenomena, which feature multiple facets. On one
hand it shares common traits with fluid-structure interaction. On the other
hand it resemb... | 1403.5707v1 |
2017-01-10 | Formulation, Implementation and Validation of the Horizontal Coupling Method for 1D/2D Shallow Water Flow Models | One dimensional (1D) simulations of the flow and flooding of open channels
are known to be inaccurate as the flow is multi-dimensional in nature,
especially at the flooded regions. However, multi-dimensional simulations, even
in two dimensions (2D), are computationally expensive, hence the problem of
efficiently coupli... | 1701.02577v1 |
2013-09-10 | Left-handed Z' and Z FCNC quark couplings facing new b -> s mu^+ mu^- data | In view of the recent improved data on B_{s,d}->mu^+ mu^- and
B_d->K^*mu^+mu^- we revisit two simple NP scenarios in which new FCNC currents
in b->s mu^+ mu^- transitions are mediated either entirely by a neutral heavy
gauge boson Z' with purely LH complex couplings Delta_L^{qb}(Z') (q=d,s) and
couplings to muons Delta... | 1309.2466v3 |
2016-05-28 | Perfect energy-feeding into strongly coupled systems and interferometric control of polariton absorption | The ability to feed energy into a system, or - equivalently - to drive that
system with an external input is a fundamental aspect of light-matter
interaction. The key concept in many photonic applications is the "critical
coupling" condition: at criticality, all the energy fed to the system via an
input channel is diss... | 1605.08906v1 |
2018-03-30 | High-order, linearly stable, partitioned solvers for general multiphysics problems based on implicit-explicit Runge-Kutta schemes | This work introduces a general framework for constructing high-order,
linearly stable, partitioned solvers for multiphysics problems from a
monolithic implicit-explicit Runge-Kutta (IMEX-RK) discretization of the
semi-discrete equations. The generic multiphysics problem is modeled as a
system of n systems of partial di... | 1803.11372v2 |
2019-01-04 | Oxygen-induced in-situ manipulation of the interlayer coupling and exciton recombination in Bi2Se3/MoS2 2D heterostructures | 2D heterostructures are more than a sum of the parent 2D materials, but are
also a product of the interlayer coupling, which can induce new properties. In
this paper we present a method to tune the interlayer coupling in Bi2Se3/MoS2
2D heterostructures by regulating the oxygen presence in the atmosphere, while
applying... | 1901.01310v1 |
2019-01-17 | Quantum chaos transition in a two-site SYK model dual to an eternal traversable wormhole | It has been recently proposed by Maldacena and Qi that an eternal traversable
wormhole in a two dimensional Anti de Sitter space (${\rm AdS}_2$) is the
gravity dual of the low temperature limit of two Sachdev-Ye-Kitaev (SYK) models
coupled by a relevant interaction (which we will refer to as spin operator). In
this pap... | 1901.06031v2 |
2019-03-03 | Doping and momentum dependence of coupling strength in cuprate superconductors | Superconductivity is caused by the interaction between electrons by the
exchange of collective bosonic excitations, however, this bosonic glue forming
electron pairs is manifested itself by the coupling strength of the electrons
to collective bosonic excitations. Here the doping and momentum dependence of
the coupling ... | 1903.00803v2 |
2019-12-06 | Controlling the nonadiabatic electron-transfer reaction rate through molecular-vibration polaritons in the ultrastrong coupling regime | Recent experiments showed that the chemical reaction rate is modified, either
increased or decreased, by strongly coupling a nuclear vibration mode to the
single mode of an optical cavity. Herein we investigate how the rate of an
electron-transfer reaction depends on the molecule-cavity coupling in the
ultrastrong coup... | 1912.02950v3 |
2015-08-17 | Bulk disorder in the superconductor affects proximity-induced topological superconductivity | We investigate effects of ordinary nonmagnetic disorder in the bulk of a
superconductor on magnetic adatom-induced Shiba states and on the
proximity-induced superconductivity in a nanowire that is tunnel coupled to the
bulk superconductor. Within the formalism of self-consistent Born
approximation, we show that, contra... | 1508.04134v2 |
2019-05-10 | Experimental Implementations of Cavity-Magnon Systems: from Ultra Strong Coupling to Applications in Precision Measurement | Several experimental implementations of cavity-magnon systems are presented.
First an Yttrium Iron Garnet (YIG) block is placed inside a re-entrant cavity
where the resulting hybrid mode is measured to be in the ultra strong coupling
regime. When fully hybridised the ratio between the coupling rate and uncoupled
mode f... | 1905.04002v2 |
2020-06-17 | Neuromechanical Mechanisms of Gait Adaptation in C. elegans: Relative Roles of Neural and Mechanical Coupling | Understanding principles of neurolocomotion requires the synthesis of neural
activity, sensory feedback, and biomechanics. The nematode \textit{C. elegans}
is an ideal model organism for studying locomotion in an integrated
neuromechanical setting because its neural circuit has a well-characterized
modular structure an... | 2006.10122v4 |
2015-07-29 | Hopf normal form with $S_N$ symmetry and reduction to systems of nonlinearly coupled phase oscillators | Coupled oscillator models where $N$ oscillators are identical and
symmetrically coupled to all others with full permutation symmetry $S_N$ are
found in a variety of applications. Much, but not all, work on phase
descriptions of such systems consider the special case of pairwise coupling
between oscillators. In this pap... | 1507.08079v2 |
2015-12-28 | A new scalar resonance at 750 GeV: Towards a proof of concept in favor of strongly interacting theories | We interpret the recently observed excess in diphoton invariant mass as a new
spin-0 resonant particle. On the theoretical ground, an interesting question is
whether this new scalar resonance belongs to a strongly coupled sector or a
well-defined weakly coupled theory. A possible UV-completion that has been
widely cons... | 1512.08307v2 |
2016-11-05 | Calculations of the dominant long-range, spin-independent contributions to the interaction energy between two nonrelativistic Dirac fermions from double-boson exchange of spin-0 and spin-1 bosons with spin-dependent couplings | Various theories beyond the Standard Model predict new particles with masses
in the sub-eV range with very weak couplings to ordinary matter which can
possess spin-dependent couplings to electrons and nucleons. Present laboratory
constraints on exotic spin-dependent interactions with pseudoscalar and axial
couplings fo... | 1611.01580v3 |
2018-08-14 | Weak coupling theory of topological Hall effect | Topological Hall effect (THE) caused by a noncoplanar spin texture
characterized by a scalar spin chirality is often described by the Berry phase,
or the associated effective magnetic field. This picture is appropriate when
the coupling, $M$, of conduction electrons to the spin texture is strong
(strong-coupling regime... | 1808.04543v1 |
2020-04-01 | Subspace Decomposition for Graphon LQR: Applications to VLSNs of Harmonic Oscillators | Graphon control has been proposed and developed in [1]-[3] to approximately
solve control problems for very large-scale networks (VLSNs) of linear
dynamical systems based on graphon limits. This paper provides a solution
method based on invariant subspace decompositions for a class of graphon linear
quadratic regulatio... | 2004.00677v2 |
2020-04-28 | Mapping Coupled Time-series Onto Complex Network | In order to extract hidden joint information from two possibly uncorrelated
time-series, we explored the measures of network science. Alongside common
methods in time-series analysis of the economic markets, mapping the joint
structure of two time-series onto a network provides insight into hidden
aspects embedded in t... | 2004.13536v2 |
2021-03-08 | Light-matter coupling and quantum geometry in moiré materials | Quantum geometry has been identified as an important ingredient for the
physics of quantum materials and especially of flat-band systems, such as
moir\'e materials. On the other hand, the coupling between light and matter is
of key importance across disciplines and especially for Floquet and cavity
engineering of solid... | 2103.04967v4 |
2021-06-17 | Eikonal quasinormal modes of black holes beyond general relativity III: scalar Gauss-Bonnet gravity | In a recent series of papers we have shown how the eikonal/geometrical optics
approximation can be used to calculate analytically the fundamental quasinormal
mode frequencies associated with coupled systems of wave equations, which
arise, for instance, in the study of perturbations of black holes in gravity
theories be... | 2106.09657v2 |
2021-08-13 | Twist-angle dependent proximity induced spin-orbit coupling in graphene/transition-metal dichalcogenide heterostructures | We investigate the proximity-induced spin-orbit coupling in heterostructures
of twisted graphene and monolayers of transition-metal dichalcogenides (TMDCs)
MoS$_2$, WS$_2$, MoSe$_2$, and WSe$_2$ from first principles. We identify
strain, which is necessary to define commensurate supercells, as the key factor
affecting ... | 2108.06126v3 |
2021-10-20 | Axion Homeopathy: Screening Dilaton Interactions | Cosmologically active Brans-Dicke (or dilaton) scalar fields are generically
ruled out by solar system tests of gravity unless their couplings to ordinary
matter are much suppressed relative to gravitational strength, and this is a
major hindrance when building realistic models of light dilatons coupled to
matter. We p... | 2110.10352v2 |
2022-05-24 | The non-minimally coupled gravitating vortex: phase transition at critical coupling $ξ_c$ in AdS$_3$ | We consider the Nielsen-Olesen vortex non-minimally coupled to Einstein
gravity with cosmological constant $\Lambda$. A non-minimal coupling term
$\xi\,R\,|\phi|^2$ is natural to add to the vortex as it preserves
gauge-invariance (here $R$ is the Ricci scalar and $\xi$ a dimensionless
coupling constant). This term play... | 2205.12175v2 |
2022-06-17 | Scalar Dark Matter Production from Preheating and Structure Formation Constraints | We investigate the out-of-equilibrium production of scalar dark matter (DM)
from the inflaton condensate during inflation and reheating. We assume that
this scalar couples only to the inflaton via a direct quartic coupling and is
minimally coupled to gravity. We consider all possible production regimes:
purely gravitat... | 2206.08940v2 |
2022-07-25 | Relaxing strong compatibility at atomistic-continuum interface: Introduction to consistent linear coupling method | The most essential concept in concurrent multiscale methods involving
atomistic-continuum coupling is how to define the relation between atomistic
and continuum regions. A well-known coupling method that has been frequently
employed in different concurrent multiscale methods such as Quasicontinuum is
the strong compati... | 2207.12565v1 |
2023-03-29 | Strong coupling between a microwave photon and a singlet-triplet qubit | Tremendous progress in few-qubit quantum processing has been achieved lately
using superconducting resonators coupled to gate voltage defined quantum dots.
While the strong coupling regime has been demonstrated recently for odd charge
parity flopping mode spin qubits, first attempts towards coupling a resonator
to even... | 2303.16825v2 |
2023-10-13 | Generalized Gluon Distribution for Quarkonium Dynamics in Strongly Coupled $\mathcal{N}=4$ Yang-Mills Theory | We study the generalized gluon distribution that governs the dynamics of
quarkonium inside a non-Abelian thermal plasma characterizing its dissociation
and recombination rates. This gluon distribution can be written in terms of a
correlation function of two chromoelectric fields connected by an adjoint
Wilson line. We ... | 2310.09325v1 |
2023-11-01 | Couples can be tractable: New algorithms and hardness results for the Hospitals / Residents problem with Couples | In this paper we study the {\sc Hospitals / Residents problem with Couples}
({\sc hrc}), where a solution is a stable matching or a report that none
exists. We present a novel polynomial-time algorithm that can find a
near-feasible stable matching (adjusting the hospitals' capacities by at most
1) in an {\sc hrc} insta... | 2311.00405v1 |
2023-11-30 | Sculpting ultrastrong light-matter coupling through spatial matter structuring | The central theme of cavity quantum electrodynamics is the coupling of a
single optical mode with a single matter excitation, leading to a doublet of
cavity polaritons which govern the optical properties of the coupled structure.
Especially in the ultrastrong coupling regime, where the ratio of the vacuum
Rabi frequenc... | 2311.18278v1 |
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