publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
|---|---|---|---|
2014-07-03 | ELKO fermions as dark matter candidates | We study the implications of the ELKO fermions as a cold dark matter
candidate. Such fermions arise in theories that are not symmetric under the
full Lorentz group. Although they do not carry electric charge, ELKOs can still
couple to photons through a nonstandard interaction. They also couple to the
Higgs but do not c... | 1407.0797v4 |
2014-07-10 | Nuclear spin content and constraints on exotic spin-dependent couplings | There are numerous recent and ongoing experiments employing a variety of
atomic species to search for couplings of atomic spins to exotic fields. In
order to meaningfully compare these experimental results, the coupling of the
exotic field to the atomic spin must be interpreted in terms of the coupling to
electron, pro... | 1407.2671v5 |
2014-07-28 | Raytracing simulations of coupled dark energy models | Dark matter and dark energy are usually assumed to couple only
gravitationally. An extension to this picture is to model dark energy as a
scalar field coupled directly to cold dark matter. This coupling leads to new
physical effects, such as a fifth-force and a time-dependent dark matter
particle mass. In this work we ... | 1407.7548v2 |
2014-07-31 | Quantum Corrections in Galileons from Matter Loops | Galileon interactions represent a class of effective field theories that have
received much attention since their inception. They can be treated in their own
right as scalar field theories with a specific global shift and Galilean
symmetry or as a descendant of a more fundamental theory like massive gravity.
It is well... | 1408.0267v3 |
2014-08-25 | Coupling Strength in Coulomb and Yukawa One-Component Plasmas | In a non-ideal classical Coulomb one-component plasma (OCP) all thermodynamic
properties are known to depend only on a single parameter -- the coupling
parameter $\Gamma$. In contrast, if the pair interaction is screened by
background charges (Yukawa OCP) the thermodynamic state depends, in addition,
on the range of th... | 1408.5840v1 |
2014-12-01 | Radiative corrections to Higgs coupling constants in two Higgs doublet models | A pattern of deviations in the Standard Model (SM) like Higgs boson ($h$)
couplings from their SM predictions depends on the structure of the Higgs
sector and the Yukawa interaction. In particular, in Two Higgs Doublet Models
(THDMs) with a softly-broken $Z_2$ symmetry, different characteristic patterns
of deviation in... | 1412.0375v1 |
2014-12-12 | Moduli dynamics as a predictive tool for thermal maximally supersymmetric Yang-Mills at large N | Maximally supersymmetric (p+1)-dimensional Yang-Mills theory at large N and
finite temperature, with possibly compact spatial directions, has a rich phase
structure. Strongly coupled phases may have holographic descriptions as black
branes in various string duality frames, or there may be no gravity dual. In
this paper... | 1412.3939v1 |
2015-02-02 | Pinning networks of coupled dynamical systems with Markovian switching couplings and event-triggered diffusions | In this paper, stability of linearly coupled dynamical systems with feedback
pinning algorithm is studied. Here, both the coupling matrix and the set of
pinned-nodes vary with time, induced by a continuous-time Markov chain with
finite states. Event-triggered rules are employed on both diffusion coupling
and feedback p... | 1502.00371v1 |
2015-02-07 | Charge density waves and phonon-electron coupling in ZrTe$_3$ investigated by Raman spectroscopy and first-principles calculations | Charge-density-wave (CDW) order has long been interpreted as arising from a
Fermi-surface instability in the parent metallic phase. While phonon-electron
coupling has been suggested to influence the formation of CDW order in
quasi-two-dimensional (quasi-2D) systems, the presumed dominant importance of
Fermi-surface nes... | 1502.02118v1 |
2015-02-11 | Transient coupling relationships of the Holocene Australian monsoon | The northwest Australian summer monsoon owes a notable degree of its
interannual variability to interactions with other regional monsoon systems.
Therefore, changes in the nature of these relationships may contribute to
variability in monsoon strength over longer time scales. Previous attempts to
evaluate how proxy rec... | 1502.03178v2 |
2015-05-12 | Distance and Coupling Dependence of Entanglement in the Presence of a Quantum Field | We study the entanglement between two coupled detectors, whose internal
degrees of freedom are modeled by harmonic oscillators, interacting with a
common quantum field, paying special attention to two less studied yet
important features: finite separation and direct coupling. Distance dependence
is essential in quantum... | 1505.03007v1 |
2015-06-22 | The running coupling of the minimal sextet composite Higgs model | We compute the renormalized running coupling of SU(3) gauge theory coupled to
N_f = 2 flavors of massless Dirac fermions in the 2-index-symmetric (sextet)
representation. This model is of particular interest as a minimal realization
of the strongly interacting composite Higgs scenario. A recently proposed
finite volume... | 1506.06599v2 |
2015-06-22 | A system coupling and Donoghue classes of Herglotz-Nevanlinna functions | We study the impedance functions of conservative L-systems with the unbounded
main operators. In addition to the generalized Donoghue class $\sM_\kappa$ of
Herglotz-Nevanlinna functions considered by the authors earlier, we introduce
"inverse" generalized Donoghue classes $\sM_\kappa^{-1}$ of functions
satisfying a dif... | 1506.06627v2 |
2015-10-09 | On the Interactive-Beating-Modes Model: Generation of Asymmetric Multiplet Structures and Explanation of the Blazhko Effect | This paper considers a nonlinear coupling between a radial and a nonradial
mode of nearly the same frequency. The results may be of general interest, but
in particular have application to the "beating-modes model" of the Blazhko
effect which was recently shown to accurately reproduce the light curve of RR
Lyr. For weak... | 1510.02543v2 |
2015-10-12 | Spectrum Structure of Fermion on Bloch Branes with Two Scalar-fermion Couplings | It is known that the Bloch brane is generated by an odd scalar field $\phi$
and an even one $\chi$. In order to localize a bulk fermion on the Bloch brane,
the coupling between the fermion and scalars should be introduced. { There are
two localization mechanisms in the literature, the Yukawa coupling $-\eta
\bar{\Psi} ... | 1510.03345v4 |
2015-10-30 | Inverse magnetic catalysis from the properties of the QCD coupling in a magnetic field | We compute the vacuum one-loop quark-gluon vertex correction at zero
temperature in the presence of a magnetic field. From the vertex function we
extract the effective quark-gluon coupling and show that it grows with
increasing magnetic field strength. The effect is due to a subtle competition
between the color charge ... | 1510.09134v2 |
2016-02-10 | Ab initio Study of Cross-Interface Electron-Phonon Couplings in FeSe Thin Films on SrTiO$_3$ and BaTiO$_3$ | We study the electron-phonon coupling strength near the interface of
monolayer and bilayer FeSe thin films on SrTiO$_3$, BaTiO$_3$, and
oxygen-vacant SrTiO$_3$ substrates, using ab initio methods. The calculated
total electron-phonon coupling strength $\lambda=0.2\text{--}0.3$ cannot
account for the high $T_c\sim 70$ K... | 1602.03288v2 |
2016-02-12 | Tricritical points in a compact $U(1)$ lattice gauge theory at strong coupling | Pure {\it compact} $U(1)$ lattice gauge theory exhibits a phase transition at
gauge coupling $g \sim {\cal{O}}(1)$ separating a familiar weak coupling
Coulomb phase, having free massless photons, from a strong coupling phase.
However, the phase transition was found to be of first order, ruling out any
nontrivial theory... | 1602.04142v3 |
2016-04-06 | Strong and ultra-strong coupling with free space radiation | Strong and ultra-strong light-matter coupling are remarkable phenomena of
quantum electrodynamics occurring when the interaction between a matter
excitation and the electromagnetic field cannot be described by usual
perturbation theory. This is generally achieved by coupling an excitation with
large oscillator strength... | 1604.01668v2 |
2016-04-26 | Relativistic stars in scalar-tensor theories with disformal coupling | We present a general formulation to analyze the structure of slowly rotating
relativistic stars in a broad class of scalar-tensor theories with disformal
coupling to matter. Our approach includes theories with generalized kinetic
terms, generic scalar field potentials and contains theories with conformal
coupling as pa... | 1604.07742v2 |
2016-06-02 | Black holes with vector hair | In this paper, we consider Einstein gravity coupled to a vector field, either
minimally or non-minimally, together with a vector potential of the type
$V=2\Lambda_0+\ft 12 m^2 A^2+\gamma_4 A^4$. For a simpler non-minimally coupled
theory with $\Lambda_0=m=\gamma_4=0$, we obtain both extremal and non-extremal
black hole... | 1606.00684v3 |
2016-06-14 | $h\toμτ$ and muon g-2 in the alignment limit of two-Higgs-doublet model | We examine the $h\to \mu\tau$ and muon g-2 in the exact alignment limit of
two-Higgs-doublet model. In this case, the couplings of the SM-like Higgs to
the SM particles are the same as the Higgs couplings in the SM at the tree
level, and the tree-level lepton-flavor-violating coupling $h\mu\tau$ is
absent. We assume th... | 1606.04408v3 |
2016-06-27 | On detecting Higgs coupling in transitions of light atoms | In light of the known Higgs mass and the current constraints on the
quark-lepton Higgs coupling, we derive conditions for extracting upper limits
on the lepton-nucleon Higgs coupling from light atoms and ions, assuming the
availability of locally precise two- and three-body methods might be
beneficial. A recent work ha... | 1606.08257v5 |
2016-07-19 | Non-minimally coupled dark fluid in Schwarzschild spacetime | If one assumes a particular form of non-minimal coupling, called the
conformal coupling, of a perfect fluid with gravity in the fluid-gravity
Lagrangian then one gets modified Einstein field equation. In the modified
Einstein equation, the effect of the non-minimal coupling does not vanish if
one works with spacetimes ... | 1607.05637v3 |
2016-07-20 | Electron dynamics in graphene with spin-orbit couplings and periodic potentials | We use both continuum and lattice models to study the energy-momentum
dispersion and the dynamics of a wave packet for an electron moving in graphene
in the presence of spin-orbit couplings and either a single potential barrier
or a periodic array of potential barriers. Both Kane-Mele and Rashba spin-orbit
couplings ar... | 1607.05904v2 |
2017-03-01 | Chiral Optical Tamm States: Temporal Coupled-Mode Theory | The chiral optical Tamm state (COTS) is a special localized state at the
interface of a handedness-preserving mirror and a structurally chiral medium
such as a cholesteric liquid crystal or a chiral sculptured thin film. The
spectral behavior of COTS, observed as reflection resonances, is described by
the temporal coup... | 1703.00310v2 |
2017-03-03 | Nearly perturbative lattice-motivated QCD coupling with zero IR limit | The product of the gluon dressing function and the square of the ghost
dressing function in the Landau gauge can be regarded to represent, apart from
the inverse power corrections 1/Q^{2n}, a nonperturbative generalization A(Q^2)
of the perturbative QCD running coupling a(Q^2)=alpha_s(Q^2)/pi. Recent large
volume latti... | 1703.01321v4 |
2017-03-22 | Observation of a strong coupling effect on electron-ion collisions in ultracold plasmas | Ultracold plasmas (UCP) provide a well-controlled system for studying
multiple aspects in plasma physics that include collisions and strong coupling
effects. By applying a short electric field pulse to a UCP, a plasma electron
center-of-mass (CM) oscillation can be initiated. In accessible parameter
ranges, the damping... | 1703.07852v2 |
2017-03-24 | Effects of anisotropy in spin molecular-orbital coupling on effective spin models of trinuclear organometallic complexes | We consider layered decorated honeycomb lattices at two-thirds filling, as
realized in some trinuclear organometallic complexes. Localized $S=1$ moments
with a single-spin anisotropy emerge from the interplay of Coulomb repulsion
and spin molecular-orbit coupling (SMOC). Magnetic anisotropies with bond
dependent exchan... | 1703.08343v3 |
2017-03-27 | Asymmetric noise-induced large fluctuations in coupled systems | Networks of interacting, communicating subsystems are common in many fields,
from ecology, biology, epidemiology to engineering and robotics. In the
presence of noise and uncertainty, inter- actions between the individual
components can lead to unexpected complex system-wide behaviors. In this paper,
we consider a gene... | 1703.09249v2 |
2017-08-22 | Multi-Transparency Windows and Fano interference Induced by Dipole-Dipole Couplings | We investigate the optical properties of a two-level system (TLS) coupled to
a linear series of $N$ other TLS's with dipole-dipole coupling between the
first neighbours. The first TLS is probed by weak field and we assume that it
has a decay rate much stronger than the decay rates of the other TLS's. For N=1
and in the... | 1708.06775v2 |
2017-08-24 | Joint weak value for all order coupling using continuous variable and qubit probe | The notion of weak measurement in quantum mechanics has gained a significant
and wide interest in realizing apparently counterintuitive quantum effects. In
recent times, several theoretical and experimental works have been reported for
demonstrating the joint weak value of two observables where the coupling
strength is... | 1708.07327v1 |
2018-02-01 | Phase separation and hidden vortices induced by spin-orbit coupling in spin-1 Bose-Einstein condensates | We investigate phase separation and hidden vortices in spin-orbit coupled
ferromagnetic BoseEinstein condensates with rotation and Rabi coupling. The
hidden vortices are invisible in density distribution but are visible in phase
distribution, which can carry angular momentum like the ordinary quantized
vortices. In the... | 1802.00138v1 |
2018-02-12 | Influence of multiplet structure on photoemission spectra of spin-orbit driven Mott insulators: application to $\bf{Sr_2IrO_4}$ | Most of the low-energy effective descriptions of spin-orbit driven Mott
insulators consider spin orbit coupling (SOC) as a second order perturbation to
electron-electron interactions. However, when SOC is comparable to anisotropic
Hund's coupling, such as in Ir, validity of this formally weak-SOC approach is
not a prio... | 1802.04158v3 |
2018-02-16 | Minimal dissipation model for bipartite quantum systems at finite temperature | We consider the reduced dynamics in a bipartite quantum system (consisting of
a central system and an intermediate environment) coupled to a heat bath at
finite temperature. To describe this situation, in the simplest possible -- yet
physically meaningful way, we introduce the "depolarizing heat bath" as a new
minimal ... | 1802.05812v2 |
2018-02-21 | Quantum field theory of nematic transitions in spin orbit coupled spin-1 polar bosons | We theoretically study an ultra-cold gas of spin-1 polar bosons in a one
dimensional continuum which are subject to linear and quadratic Zeeman fields
and a Raman induced spin-orbit coupling. Concentrating on the regime in which
the background fields can be treated perturbatively we analytically solve the
model in its ... | 1802.07736v2 |
2018-02-26 | Coupled quintessence with a $Λ$CDM background: removing the $σ_8$ tension | A well-known problem of the $\Lambda$CDM model is the tension between the
relatively high level of clustering, as quantified by the parameter $\sigma_8$,
found in cosmic microwave background experiments and the smaller one obtained
from large-scale observations in the late Universe. In this paper we show that
coupled q... | 1802.09216v2 |
2018-11-09 | Engineering Photon Delocalization in a Rabi Dimer with a Dissipative Bath | A Rabi dimer is used to model a recently reported circuit quantum
electrodynamics system composed of two coupled transmission-line resonators
with each coupled to one qubit. In this study, a phonon bath is adopted to
mimic the multimode micromechanical resonators and is coupled to the qubits in
the Rabi dimer. The dyna... | 1811.03878v2 |
2018-11-19 | One-dimensional Hubbard-Holstein model with finite range electron-phonon coupling | The Hubbard-Holstein model describes fermions on a discrete lattice, with
on-site repulsion between fermions and a coupling to phonons that are localized
on sites. Generally, at half-filling, increasing the coupling $g$ to the
phonons drives the system towards a Peierls charge density wave state whereas
increasing the ... | 1811.07811v3 |
2018-11-30 | On the phase structure of vector-matrix scalar model in four dimensions | The leading-order equations of the $1/N$ -- expansion for a vector-matrix
model with interaction $g\phi_a^*\phi_b\chi_{ab}$ in four dimensions are
investigated. This investigation shows a change of the asymptotic behavior in
the deep Euclidean region in a vicinity of a certain critical value of the
coupling constant. F... | 1811.12791v1 |
2010-05-14 | Decoupling the NLO coupled DGLAP evolution equations: an analytic solution to pQCD | Using repeated Laplace transform techniques, along with newly-developed
accurate numerical inverse Laplace transform algorithms, we transform the
coupled, integral-differential NLO singlet DGLAP equations first into coupled
differential equations, then into coupled algebraic equations, which we can
solve iteratively. A... | 1005.2556v1 |
2013-08-19 | Quantum Quench and Double Trace Couplings | We consider quantum quench by a time dependent double trace coupling in a
strongly coupled large N field theory which has a gravity dual via the AdS/CFT
correspondence. The bulk theory contains a self coupled neutral scalar field
coupled to gravity with negative cosmological constant. We study the scalar
dynamics in th... | 1308.4061v2 |
2014-03-04 | First experimental constraints on the disformally coupled Galileon model | The Galileon model is a modified gravity model that can explain the late-time
accelerated expansion of the Universe. In a previous work, we derived
experimental constraints on the Galileon model with no explicit coupling to
matter and showed that this model agrees with the most recent cosmological
data. In the context ... | 1403.0854v3 |
2014-03-19 | Probing wrong-sign Yukawa couplings at the LHC and a future linear collider | We consider the two-Higgs-doublet model as a framework in which to evaluate
the viability of scenarios in which the sign of the coupling of the observed
Higgs boson to down-type fermions (in particular, $b$-quark pairs) is opposite
to that of the Standard Model (SM), while at the same time all other tree-level
coupling... | 1403.4736v4 |
2017-01-03 | Fracton topological order via coupled layers | In this work, we develop a coupled layer construction of fracton topological
orders in $d=3$ spatial dimensions. These topological phases have sub-extensive
topological ground-state degeneracy and possess excitations whose movement is
restricted in interesting ways. Our coupled layer approach is used to construct
sever... | 1701.00747v2 |
2017-01-22 | Fast and slow domino regimes in transient network dynamics | It is well known that the addition of noise to a multistable dynamical system
can induce random transitions from one stable state to another. For low noise,
the times between transitions have an exponential tail and Kramers' formula
gives an expression for the mean escape time in the asymptotic limit. If a
number of mu... | 1701.06148v4 |
2017-01-24 | Modeling of Hybridized IR Arrays for Characterization of Interpixel Capacitive Coupling | Inter pixel capacitance (IPC) is a deterministic electronic coupling
resulting in a portion of signal incident on one pixel of a hybridized detector
array being measured in adjacent pixels. Data collected by light sensitive
HgCdTe arrays which exhibit this coupling typically goes uncorrected or is
corrected by treating... | 1701.07062v1 |
2018-05-04 | Calculation of tunnel-couplings in open gate-defined disordered quantum dot systems | Quantum computation based on semiconductor electron-spin qubits requires high
control of tunnel-couplings, both across quantum dots and between the quantum
dot and the reservoir. The tunnel-coupling to the reservoir sets the qubit
detection and initialization bandwidth for energy-resolved spin-to-charge
conversion and ... | 1805.01728v1 |
2018-05-09 | Electromagnetic couplings of radially excited light vector mesons from QCD sum rules | The couplings of unflavored vector mesons to the $e^+e^-$ annihilation are an
important source of information on the nature and structure of these resonances
which play a prominent role in the hadron phenomenology. The couplings of many
radially excited heavy vector mesons are measured, while the corresponding
coupling... | 1805.03415v2 |
2018-05-17 | A Group-theoretical Approach to Enumerating Magnetoelectric and Multiferroic Couplings in Perovskites | We use a group theoretical approach to enumerate the possible couplings
between magnetism and ferroelectric polarisation in the parent $Pm\bar{3}m$
perovskite structure. We show that third order magnetoelectric coupling terms
must always involve magnetic ordering at the A and B-site which either
transforms both as R-po... | 1805.06671v1 |
2018-05-28 | Common Origin of Dirac Neutrino Mass and Freeze-in Massive Particle Dark Matter | Motivated by the fact that the origin of tiny Dirac neutrino masses via the
standard model Higgs field and non-thermal dark matter populating the Universe
via freeze-in mechanism require tiny dimensionless couplings of similar order
of magnitudes $(\sim 10^{-12})$, we propose a framework that can dynamically
generate s... | 1805.11115v1 |
2008-07-04 | Intersubband-induced spin-orbit interaction in quantum wells | Recently, we have found an additional spin-orbit (SO) interaction in quantum
wells with two subbands [Phys. Rev. Lett. 99, 076603 (2007)]. This new SO term
is non-zero even in symmetric geometries, as it arises from the intersubband
coupling between confined states of distinct parities, and its strength is
comparable t... | 0807.0771v2 |
2008-07-04 | Parallel Coupling of Symmetric and Asymmetric Exclusion Processes | A system consisting of two parallel coupled channels where particles in one
of them follow the rules of totally asymmetric exclusion processes (TASEP) and
in another one move as in symmetric simple exclusion processes (SSEP) is
investigated theoretically. Particles interact with each other via hard-core
exclusion poten... | 0807.0803v1 |
2011-11-02 | Shaping bursting by electrical coupling and noise | Gap-junctional coupling is an important way of communication between neurons
and other excitable cells. Strong electrical coupling synchronizes activity
across cell ensembles. Surprisingly, in the presence of noise synchronous
oscillations generated by an electrically coupled network may differ
qualitatively from the o... | 1111.0642v1 |
2012-04-28 | Realistic cosmological scenario with non-minimal kinetic coupling | We investigate cosmological scenarios in the theory of gravity with the
scalar field possessing a non-minimal kinetic coupling to the curvature. It is
shown that the kinetic coupling provides an essentially new inflationary
mechanism. Namely, at early cosmological times the domination of coupling terms
in the field equ... | 1204.6372v1 |
2013-09-23 | Polaron dynamics and decoherence in an interacting two-spin system coupled to optical phonon environment | We study two anisotropically interacting spins coupled to optical phonons; we
restrict our analysis to the regime of strong coupling to the environment, to
the antiadiabatic region, and to the subspace with zero value for $S^z_T$ (the
z-component of the total spin). In the case where each spin is coupled to a
different... | 1309.5824v3 |
2013-09-30 | A Simple Proof of Maxwell Saturation for Coupled Scalar Recursions | Low-density parity-check (LDPC) convolutional codes (or spatially-coupled
codes) were recently shown to approach capacity on the binary erasure channel
(BEC) and binary-input memoryless symmetric channels. The mechanism behind this
spectacular performance is now called threshold saturation via spatial
coupling. This ne... | 1309.7910v3 |
2014-05-31 | An Indirect Handle on the Down-Quark Yukawa Coupling | To measure the Yukawa couplings of the up and down quarks, Y_{u,d}, seems to
be far beyond the capabilities of current and (near) future experiments in
particle physics. By performing a general analysis of the potential
misalignment between quark masses and Yukawa couplings, we derive predictions
for the magnitude of i... | 1406.0102v1 |
2014-06-18 | Engineering spin-orbit coupling for photons and polaritons in microstructures | One of the most fundamental properties of electromagnetism and special
relativity is the coupling between the spin of an electron and its orbital
motion. This is at the origin of the fine structure in atoms, the spin Hall
effect in semiconductors, and underlies many intriguing properties of
topological insulators, in p... | 1406.4816v1 |
2016-05-10 | A long-lived spin-orbit-coupled degenerate dipolar Fermi gas | We describe the creation of a long-lived spin-orbit-coupled gas of quantum
degenerate atoms using the most magnetic fermionic element, dysprosium.
Spin-orbit-coupling arises from a synthetic gauge field created by the
adiabatic following of degenerate dressed states comprised of optically coupled
components of an atomi... | 1605.03211v2 |
2017-06-06 | Time-dependent theory of solar meridional flows | We explore consequences for the solar dynamo of a newly-developed physical
hypothesis describing a weak coupling of the orbital and rotational motions of
extended bodies. The coupling is given by - c ((dL/dt) x omega sub alpha) x r,
where dL/dt represents the rate of change of barycentric orbital angular
momentum, omeg... | 1706.01854v1 |
2017-06-13 | Modular System for Shelves and Coasts (MOSSCO v1.0) - a flexible and multi-component framework for coupled coastal ocean ecosystem modelling | Shelf and coastal sea processes extend from the atmosphere through the water
column and into the sea bed. These processes are driven by physical, chemical,
and biological interactions at local scales, and they are influenced by
transport and cross strong spatial gradients. The linkages between domains and
many differen... | 1706.04224v1 |
2017-06-23 | Cold-atom based implementation of the quantum Rabi model | The interaction of a two-level system (TLS) with a single bosonic mode is one
of the most fundamental processes in quantum optics. Microscopically, it is
described by the quantum Rabi model (QRM). Here, we propose an implementation
of this model based on single trapped cold atoms. The TLS is implemented using
atomic Ze... | 1706.07781v1 |
2017-10-04 | From Kondo to local singlet state in graphene nanoribbons with magnetic impurities | A detailed analysis of the Kondo effect of a magnetic impurity in a zigzag
graphene nanoribbon is addressed. An adatom is coupled to the graphene
nanoribbon via a hybridization amplitude $\Gamma_{imp}$ in a hollow or top site
configuration. In addition, the adatom is also weakly coupled to a metallic STM
tip by a hybri... | 1710.01617v1 |
2017-12-02 | Nearly perturbative QCD coupling with lattice-motivated zero IR limit | The product of the gluon dressing function and the square of the ghost
dressing function in the Landau gauge can be regarded to represent, apart from
the inverse power corrections $1/Q^{2 n}$, a nonperturbative generalization
$A(Q^2)$ of the perturbative QCD running coupling $a(Q^2)$ ($\equiv
\alpha_s(Q^2)/\pi$). Recen... | 1712.00622v1 |
2017-12-03 | Can measurements of 2HDM parameters provide hints for high scale supersymmetry? | Two-Higgs-doublet models (2HDMs) are minimal extensions of the Standard Model
(SM) that may still be discovered at the LHC. The quartic couplings of their
potentials can be determined from the measurement of the masses and branching
ratios of their extended scalar sectors. We show that the evolution of these
couplings ... | 1712.00791v2 |
2018-09-04 | The shadow of dark matter as a shadow of string theory | We point out that string theory can solve the conundrum to explain the
emergence of an electroweak dipole moment from electroweak singlets through
induction of those dipole moments through a Kalb-Ramond dipole coupling. This
can generate a U_Y(1) portal to dark matter and entails the possibility that
the U_Y(1) gauge f... | 1809.01089v3 |
2018-09-12 | Emergence of micro-frequency comb via limit cycles in dissipatively coupled condensates | Self-sustained oscillations, limit cycles, are a fundamental phenomenon
unique to nonlinear dynamic systems of high-dimensional phase space. They
enable understanding of a wide range of cyclic processes in natural, social and
engineering systems. Here we show that limit cycles form in coupled polariton
cavities followi... | 1809.04641v2 |
2019-09-01 | Switchable Josephson current in junctions with spin-orbit coupling | We study the Josephson current in two types of lateral junctions with
spin-orbit coupling and an exchange field. The first system (type 1 junction)
consists of superconductors with heavy metal interlayers linked by a
ferromagnetic bridge, such that the spin-orbit coupling is finite only at the
superconductor/heavy meta... | 1909.00401v1 |
2019-08-06 | Strong Gravitational Lensing for Photon Coupled to Weyl Tensor in Kiselev Black Hole | The ambition of the present work is to highlight the phenomena of strong
gravitational lensing and deflection angle for the photons coupling with Weyl
tensor in a Kiselev black hole. Here, we have extended the prior work of Chen
and Jing \cite{1} for Schwarzschild black hole to Kiselev black hole. For this
purpose, the... | 1909.06433v2 |
2020-12-09 | Coupling-based convergence assessment of some Gibbs samplers for high-dimensional Bayesian regression with shrinkage priors | We consider Markov chain Monte Carlo (MCMC) algorithms for Bayesian
high-dimensional regression with continuous shrinkage priors. A common
challenge with these algorithms is the choice of the number of iterations to
perform. This is critical when each iteration is expensive, as is the case when
dealing with modern data... | 2012.04798v3 |
2020-12-13 | Intra-cavity field dynamics near avoided mode crossing in concentric silicon nitride ring resonator | Understanding the intra-cavity field dynamics in passive microresonator
systems has already been intriguing. It becomes fascinating when the system is
complex, such as a concentric dual microring resonator that exhibit avoided
mode crossing (AMC). In this work, we present a systematic study of
intra-cavity oscillatory ... | 2012.06991v2 |
2017-05-23 | Dynamics of a spherically symmetric inhomogeneous coupled dark energy model with coupling term proportional to non relatvistic matter | Quasi--local scalar variables approach is applied to a spherically symmetric
inhomogeneous Lema\^\i tre--Tolman--Bondi metric containing a mixture of
non-relativistic cold dark matter and coupled dark energy with constant
equation of state. The quasi--local coupling term considered is proportional to
the quasi--local c... | 1705.08351v1 |
2017-05-27 | Tunable Quantum Chaos in the Sachdev-Ye-Kitaev Model Coupled to a Thermal Bath | The Sachdev-Ye-Kitaev (SYK) model describes Majorana fermions with random
interaction, which displays many interesting properties such as non-Fermi
liquid behavior, quantum chaos, emergent conformal symmetry and holographic
duality. Here we consider a SYK model or a chain of SYK models with $N$
Majorana fermion modes c... | 1705.09818v2 |
2017-05-29 | Hot-electron relaxation in dense `two-temperature' hydrogen | Recent theories of hot-electron relaxation in dense hydrogen or deuterium are
examined in the light of recent molecular-dynamics simulations as well as
various theoretical developments within the two-temperature model. The
theoretical work since 1998 have led to the formulation of the $f$-sum version
of the Fermi Golde... | 1705.10221v2 |
2017-05-30 | Multi-Focus Image Fusion Using Sparse Representation and Coupled Dictionary Learning | We address the multi-focus image fusion problem, where multiple images
captured with different focal settings are to be fused into an all-in-focus
image of higher quality. Algorithms for this problem necessarily admit the
source image characteristics along with focused and blurred features. However,
most sparsity-based... | 1705.10574v3 |
2017-05-30 | Real-Time Observation of Exciton-Phonon Coupling Dynamics in Self-Assembled Hybrid Perovskite Quantum Wells | Self-assembled hybrid perovskite quantum wells have attracted attention due
to their tunable emission properties, ease of fabrication and device
integration. However, the dynamics of excitons in these materials, especially
how they couple to phonons remains an open question. Here, we investigate two
widely used materia... | 1705.10722v2 |
2017-09-18 | Experimental Targets for Photon Couplings of the QCD Axion | The QCD axion's coupling to photons is often assumed to lie in a narrow band
as a function of the axion mass. We demonstrate that several simple mechanisms,
in addition to the photophilic clockwork axion already in the literature, can
significantly extend the allowed range of couplings. Some mechanisms we present
gener... | 1709.06085v2 |
2017-09-25 | HTS YBCO Resonator Configuration with Coplanar Optimized Flux Concentrator Strongly Coupled to rf SQUID | We developed a novel magnetic coupling module formed of a monolayer
superconducting flux concentrator, which is integrated with a coplanar
resonator strongly coupled to HTS rf-SQUID. Three types of resonators,
including a long stripline resonator between input loop and pick-up loop of the
flux concentrator, a complemen... | 1709.09960v1 |
2018-03-12 | Probing Quartic Higgs Self-Interaction | The Higgs self-interactions play a crucial role for exploring the underlying
mechanism of electroweak symmetry breaking and the nature of the phase
transition involved. In this article, we propose to probe the quartic Higgs
self-interaction at lepton and hadron colliders, via the di-Higgs productions.
We analyze the co... | 1803.04359v2 |
2018-03-22 | Phonon as environmental disturbance in three level system | This work investigates the effect of phonon coupling on the transfer of
population and creation of coherence using variant of stimulated Raman
adiabatic passage (STIRAP) known as \emph{fractional} stimulated Raman
adiabatic passage (FSTIRAP). The study is based on the Liouville equation,
which is solved numerically in ... | 1803.08327v1 |
2018-03-30 | Inflation from a nonlinear magnetic monopole field nonminimally coupled to curvature | In the context of nonminimally coupled $f(R)$ gravity theories, we study
early inflation driven by a nonlinear monopole magnetic field which is
nonminimally coupled to curvature. In order to isolate the effects of the
nonminimal coupling between matter and curvature we assume the pure
gravitational sector to have the E... | 1803.11358v2 |
2018-06-04 | Environment induced Symmetry Breaking of the Oscillation-Death State | We investigate the impact of a common external system, which we call a common
environment, on the Oscillator Death (OD) states of a group of Stuart-Landau
oscillators. The group of oscillators yield a completely symmetric OD state
when uncoupled to the external system, i.e. the two OD states occur with equal
probabilit... | 1806.01653v1 |
2018-06-14 | Spin-orbit coupling and topological phases for ultracold atoms | Cold atoms with laser-induced spin-orbit (SO) interactions provide promising
platforms to explore novel quantum physics, in particular the exotic
topological phases, beyond natural conditions of solids. The past several years
have witnessed important progresses in both theory and experiment in the study
of SO coupling ... | 1806.05628v1 |
2018-07-31 | A parallel dual-grid multiscale approach to CFD-DEM couplings | In this work, a new parallel dual-grid multiscale approach for CFD-DEM
couplings is investigated. Dual- grid multiscale CFD-DEM couplings have been
recently developed and successfully adopted in different applications still, an
efficient parallelization for such a numerical method represents an open issue.
Despite its ... | 1807.11834v1 |
2018-12-09 | Scalarized black holes in the presence of the coupling to Gauss-Bonnet gravity | In this paper, we study static and spherically symmetric black hole (BH)
solutions in the scalar-tensor theories with the coupling of the scalar field
to the Gauss-Bonnet (GB) term $\xi (\phi) R_{\rm GB}$, where $R_{\rm
GB}:=R^2-4R^{\alpha\beta}R_{\alpha\beta}+R^{\alpha\beta\mu\nu}R_{\alpha\beta\mu\nu}$
is the GB invar... | 1812.03551v2 |
2018-12-20 | Strong Strain-Induced Coupling between Nanomechanical Pillar Resonators | Networks of coupled resonators are an ubiquitous concept in physics, forming
the basis of synchronization phenomena, metamaterial formation, nonreciprocal
behavior and topological effects. Such systems are typically explored using
optical or microwave resonators. In recent years, mechanical resonators have
entered the ... | 1812.08614v1 |
2019-01-05 | Transmission lines and resonators based on quantum Hall plasmonics: electromagnetic field, attenuation and coupling to qubits | Quantum Hall edge states have some characteristic features that can prove
useful to measure and control solid state qubits. For example, their high
voltage to current ratio and their dissipationless nature can be exploited to
manufacture low-loss microwave transmission lines and resonators with a
characteristic impedan... | 1901.01455v1 |
2019-01-08 | Strong Coupling of Light to Collective Terahertz Vibrations in Organic Materials | Several years ago, it was shown that strong coupling between an electronic
transition in organic molecules and a resonant photonic structure can modify
the electronic landscape of the molecules and affect their chemical behavior.
Since then, this new concept has evolved into a new field known as polaritonic
chemistry, ... | 1901.02487v2 |
2019-01-09 | Diagrammatic Coupled Cluster Monte Carlo | We propose a modified coupled cluster Monte Carlo algorithm that
stochastically samples connected terms within the truncated
Baker--Campbell--Hausdorff expansion of the similarity transformed Hamiltonian
by construction of coupled cluster diagrams on the fly. Our new approach --
diagCCMC -- allows propagation to be per... | 1901.02753v3 |
2019-01-20 | Terahertz Strong-Field Physics without a Strong External Terahertz Field | Traditionally, strong-field physics explores phenomena in matter (atoms,
molecules, and solids) driven by an extremely strong laser field
nonperturbatively. However, even in the complete absence of an external
electromagnetic field, strong-field phenomena can arise when matter strongly
couples with the zero-point field... | 1901.06749v1 |
2019-03-31 | Control of the Coupling Strength and the Linewidth of a Cavity-Magnon Polariton | The full coherent control of hybridized systems such as strongly coupled
cavity photon-magnon states is a crucial step to enable future information
processing technologies. Thus, it is particularly interesting to engineer
deliberate control mechanisms such as the full control of the coupling strength
as a measure for c... | 1904.00393v1 |
2019-04-12 | Emergent Strings, Duality and Weak Coupling Limits for Two-Form Fields | We systematically analyse weak coupling limits for 2-form tensor fields in
the presence of gravity. Such limits are significant for testing various
versions of the Weak Gravity and Swampland Distance Conjectures, and more
broadly, the phenomenon of emergence. The weak coupling limits for 2-forms
correspond to certain i... | 1904.06344v2 |
2019-04-15 | Analysis of the anomalous quartic $WWWW$ couplings at the LHeC and the FCC-he | The quartic gauge boson couplings that identify the strengths of the gauge
boson self-interactions are exactly determined by the non-Abelian gauge nature
of the Standard Model. The examination of these couplings at $ep$ collisions
with high center-of-mass energy and high integrated luminosity provides an
important oppo... | 1904.06990v2 |
2019-08-15 | The interplay of electron-photon and cavity-environment coupling on the electron transport through a quantum dot system | We theoretically investigate the characteristics of the electron transport
through a two-dimensionala quantum dot system in the $xy$-plane coupled to a
photon cavity and a photon reservoir, the environment. The electron-photon
coupling, $g_{\gamma}$, and the cavity-reservoir coupling, $\kappa$, are tuned
to study the s... | 1908.05712v1 |
2019-08-29 | Higgs bosons with large couplings to light quarks | A common lore has arisen that beyond the Standard Model (BSM) particles,
which can be searched for at current and proposed experiments, should have
flavorless or mostly third-generation interactions with Standard Model quarks.
This theoretical bias severely limits the exploration of BSM phenomenology, and
is especially... | 1908.11376v2 |
2019-11-27 | Continuously-tunable light-matter coupling in optical microcavities with 2D semiconductors | A theoretical variation between the two distinct light-matter coupling
regimes, namely weak and strong coupling, becomes uniquely feasible in open
optical Fabry-P\'erot microcavities with low mode volume, as discussed here. In
combination with monolayers of transition-metal dichalcogenides (TMDCs) such as
WS2, which ex... | 1911.12438v1 |
2019-12-05 | Analytical and Numerical study of the out-of-equilibrium current through a helical edge coupled to a magnetic impurity | We study the conductance of a time-reversal symmetric helical electronic edge
coupled antiferromagnetically to a magnetic impurity, employing analytical and
numerical approaches. The impurity can reduce the perfect conductance $G_0$ of
a noninteracting helical edge by generating a backscattered current. The
backscatter... | 1912.02838v2 |
2019-12-18 | Sideband-resolved resonator electromechanics on the single-photon level based on a nonlinear Josephson inductance | Light-matter interaction in optomechanical systems is the foundation for
ultra-sensitive detection schemes [1,2] as well as the generation of phononic
and photonic quantum states [3-10]. Electromechanical systems realize this
optomechanical interaction in the microwave regime. In this context, capacitive
coupling arran... | 1912.08731v1 |
2015-08-26 | Gravitating sphalerons in the Skyrme model | We construct self-gravitating axially symmetric sphaleron solutions of the
3+1 dimensional Skyrme model coupled to Einstein gravity. The solutions are
static and asymptotically flat, they are characterized by two integers n and m,
where n is the winding numbers of the constituents and the second integer m
defines type ... | 1508.06507v1 |
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