publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
|---|---|---|---|
1998-02-07 | Renormalization group coupling flow of SU(3) gauge theory | We present our new results on the renormalization group coupling flow
obtained i n 3 dimensional coupling space
$(\beta_{11},\beta_{12},\beta_{twist})$. The value of $\beta_{twist}$ turns out
to be small and the coupling flow projected on $(\beta_{11},\beta_{12})$ plane
is very similar with the previous result obtained... | 9802006v1 |
1992-12-17 | Couplings in Affine Toda Field Theories | We present a systematic derivation for a general formula for the n-point
coupling constant valid for affine Toda theories related to any simple Lie
algebra {\bf g}. All n-point couplings with $n \geq 4$ are completely
determined in terms of the masses and the three-point couplings. A general
fusing rule, formulated in ... | 9212107v1 |
2003-10-08 | Absolute continuity of projected SRB measures of coupled Arnold cat map lattices | We study a d-dimensional coupled map lattice consisting of hyperbolic toral
automorphisms (Arnold cat maps) that are weakly coupled by an analytic coupling
map. We construct the Sinai-Ruelle-Bowen measure for this system and study its
marginals on the tori. We prove they are absolutely continuous with respect to
the Le... | 0310009v1 |
2005-09-29 | Amplitude death in coupled chaotic oscillators | Amplitude death can occur in chaotic dynamical systems with time-delay
coupling, similar to the case of coupled limit cycles. The coupling leads to
stabilization of fixed points of the subsystems. This phenomenon is quite
general, and occurs for identical as well as nonidentical coupled chaotic
systems. Using the Loren... | 0509053v1 |
2006-09-09 | Isochronal synchronization of delay-coupled systems | We consider small network models for mutually delay-coupled systems which
typically do not exhibit stable isochronally synchronized solutions. We show
that for certain coupling architectures which involve delayed self feedback to
the nodes, the oscillators become isochronally synchronized. Applications are
shown for bo... | 0609021v2 |
2008-01-26 | The Third Law of Quantum Thermodynamics in the Presence of Anomalous Couplings | The quantum thermodynamic functions of a harmonic oscillator coupled to a
heat bath through velocity-dependent coupling are obtained analytically. It is
shown that both the free energy and the entropy decay fast with the temperature
in relation to that of the usual coupling from. This implies that the
velocity-dependen... | 0801.4057v1 |
2010-08-16 | Universal occurrence of mixed-synchronization in counter-rotating nonlinear coupled oscillators | By coupling counter--rotating coupled nonlinear oscillators, we observe a
``mixed'' synchronization between the different dynamical variables of the same
system. The phenomenon of amplitude death is also observed. Results for coupled
systems with co--rotating coupled oscillators are also presented for a detailed
compar... | 1008.2600v1 |
2010-12-28 | Coupling and Applications | This paper presents a self-contained account for coupling arguments and
applications in the context of Markov processes. We first use coupling to
describe the transport problem, which leads to the concepts of optimal coupling
and probability distance (or transportation-cost), then introduce applications
of coupling to ... | 1012.5687v1 |
2011-10-31 | Spatially Coupled Repeat-Accumulate Codes | In this paper we propose a new class of spatially coupled codes based on
repeat-accumulate protographs. We show that spatially coupled repeat-accumulate
codes have several advantages over spatially coupled low-density parity-check
codes including simpler encoders and slightly higher code rates than spatially
coupled lo... | 1110.6787v1 |
2018-11-20 | A Unified Approach to Coupling SDEs driven by Lévy Noise and Some Applications | We present a general method to construct couplings of stochastic differential
equations driven by L\'{e}vy noise in terms of coupling operators. This
approach covers both coupling by reflection and refined basic coupling which
are often discussed in the literature. As an application, we establish
regularity results for... | 1811.08477v1 |
2015-12-11 | Re-examining the self-contained quantum refrigerator in the strong-coupling regime | We revisit the self-contained quantum refrigerator in the
strong-internal-coupling regime by employing the quantum optical master
equation. It is shown that strong internal coupling reduces the cooling ability
of the refrigerator. In contrast to the weak-coupling case, strong internal
coupling could lead to quite diffe... | 1512.03488v1 |
2022-02-25 | Superposed Hyperbolic Kink and Pulse Solutions of Coupled $φ^4$, NLS and MKdV Equations | We obtain novel solutions of a coupled $\phi^4$, a coupled nonlinear
Schr\"odinger (NLS) and a coupled modified Korteweg de Vries (MKdV) model which
can be re-expressed as a linear superposition of either the sum or the
difference of two hyperbolic kink or two hyperbolic pulse solutions. These
results demonstrate that ... | 2202.12444v1 |
2022-03-28 | No scalar condensations outside reflecting stars with coupling terms from Ginzburg-Landau models | We consider static scalar fields coupled to the gradient where the coupling
also appears in next-to-leading order Ginzburg-Landau models. We study
condensation behaviors of scalar fields outside regular compact reflecting
stars in the asymptotically flat background. For non-negative coupling
parameters, we prove that t... | 2203.15564v1 |
1994-11-06 | Critical behavior of period doubling in coupled area-preserving maps | We study the critical behavior of period doublings in $N$ symmetrically
coupled area-preserving maps for many-coupled cases with $N>3$. It is found
that the critical scaling behaviors depend on the range of coupling
interaction. In the extreme long-range case of global coupling, in which each
area-preserving map is cou... | 9411002v1 |
1996-04-05 | Period p-tuplings in coupled maps | We study the critical behavior (CB) of all period $p$-tuplings $(p
\!=\!2,3,4,\dots)$ in $N$ $(N \!=\! 2,3,4,\dots)$ symmetrically coupled
one-dimensional maps. We first investigate the CB for the $N=2$ case of two
coupled maps, using a renormalization method. Three (five) kinds of fixed
points of the renormalization t... | 9604002v1 |
1998-09-17 | Critical Behavior of Period Doublings in Coupled Inverted Pendulums | We study the critical behaviors of period doublings in N (N=2,3,4,...)
coupled inverted pendulums by varying the driving amplitude $A$ and the
coupling strength $c$. It is found that the critical behaviors depend on the
range of coupling interaction. In the extreme long-range case of global
coupling, in which each inve... | 9809014v1 |
2006-10-19 | Network Synchronization with an Adaptive Coupling Strength | In this paper, new schemes to synchronize linearly or nonlinearly coupled
chaotic systems with an adaptive coupling strength are proposed. Unlike other
adaptive schemes, which synchronize coupled chaotic systems to a special
trajectory (or an equilibrium point) of the uncoupled node by adding negative
feedbacks adaptiv... | 0610580v1 |
2012-09-02 | Coupling and tracking of regime-switching martingales | This paper describes two explicit couplings of standard Brownian motions $B$
and $V$, which naturally extend the mirror coupling and the synchronous
coupling and respectively maximise and minimise (uniformly over all time
horizons) the coupling time and the tracking error of two regime-switching
martingales. The genera... | 1209.0180v3 |
2016-04-12 | Synchronization of linearly coupled reaction-diffusion neural networks with hybrid coupling and time-varying delays via aperiodically intermittent pinning control | In this paper, the complete synchronization problem of linearly coupled
neural networks with reaction-diffusion terms and time-varying delays via
aperiodically intermittent pinning control is investigated. The coupling matrix
for the network can be asymmetric. Compared with state coupling in the
synchronization literat... | 1604.03379v1 |
2014-06-13 | The Exact Effective Couplings of 4D N=2 gauge theories | The anomalous dimensions of operators in the purely gluonic SU(2,1|2) sector
of any planar conformal N=2 theory can be read off from the N=4 SYM results by
replacing the N=4 coupling constant by an interpolating function of the N=2
coupling constants, to which we refer to as the effective coupling. For a large
class of... | 1406.3629v2 |
2020-09-25 | Optimal control of network-coupled subsystems: Spectral decomposition and low-dimensional solutions | In this paper, we investigate optimal control of network-coupled subsystems
where the dynamics and the cost couplings depend on an underlying undirected
weighted graph. The graph coupling matrix in the dynamics may be the adjacency
matrix, the Laplacian matrix, or any other symmetric matrix corresponding to
the underly... | 2009.12367v2 |
2023-11-09 | More on closed string effective actions at order $α'^2$ | Recent progress in string theory has unveiled the discovery of NS-NS
couplings in bosonic and heterotic effective actions at order $\alpha'^2$,
which were achieved by imposing $O(1,1)$ symmetry on the circle reduction of
classical effective actions. While the bosonic theory features 25 couplings,
the heterotic theory e... | 2311.05207v2 |
1995-09-12 | Optical absorption in the strong coupling limit of Eliashberg theory | We calculate the optical conductivity of superconductors in the
strong-coupling limit. In this anomalous limit the typical energy scale is set
by the coupling energy, and other energy scales such as the energy of the
bosons mediating the attraction are negligibly small. We find a universal
frequency dependence of the o... | 9509065v1 |
1998-02-23 | Capacitively coupled Josephson-junction chains: straight and slanted coupling | Two chains of ultrasmall Josephson junctions, coupled capacitively with each
other in the two different ways, straight and slanted coupling, are considered.
As the coupling capacitance increases, regardless of the coupling scheme, the
transport of particle-hole pairs in the system is found to drive the
quantum-phase tr... | 9802237v1 |
2001-09-21 | Slower Speed and Stronger Coupling: Adaptive Mechanisms of Self-Organized Chaos Synchronization | We show that two initially weakly coupled chaotic systems can achieve
self-organized synchronization by adaptively reducing their speed and/or
enhancing the coupling strength. Explicit adaptive algorithms for
speed-reduction and coupling-enhancement are provided. We apply these
algorithms to the self-organized synchron... | 0109395v1 |
2002-01-21 | Stability of Synchronized Chaos in Coupled Dynamical Systems | We consider the stability of synchronized chaos in coupled map lattices and
in coupled ordinary differential equations. Applying the theory of Hermitian
and positive semidefinite matrices we prove two results that give simple bounds
on coupling strengths which ensure the stability of synchronized chaos.
Previous result... | 0201037v1 |
2006-04-26 | Synchronization of Mutually Versus Unidirectionally Coupled Chaotic Semiconductor Lasers | Synchronization dynamics of mutually coupled chaotic semiconductor lasers are
investigated experimentally and compared to identical synchronization of
unidirectionally coupled lasers. Mutual coupling shows high quality
synchronization in a broad range of self-feedback and coupling strengths. It is
found to be tolerant ... | 0604068v1 |
2002-10-22 | $π$NN coupling and two-pion photoproduction on the nucleon | Effects of non-resonant photoproductions arising from two different $\pi NN$
couplings are investigated in the $\gamma N\to\pi\pi N$ reaction. We find that
the pseudoscalar (PS) $\pi NN$ coupling is generally preferable to the
pseudovector (PV) $\pi NN$ coupling and particularly the total cross sections
are successfull... | 0210063v2 |
2003-08-15 | Entangled two atoms through different couplings and the thermal noise | The entanglement of two atoms is studied when the two atoms are coupled to a
single-mode thermal field with different couplings. The different couplings of
two atoms are in favor of entanglement preparation: it not only makes the case
of absence entanglement with same coupling appear entanglement, but also
enhances the... | 0308086v1 |
2003-10-29 | Thermal entanglement of Bosonic atoms in an optical lattice with nonlinear couplings | The thermal entanglement of two spin-1 atoms with nonlinear couplings in
optical lattices is investigated in this paper. It is found that the nonlinear
couplings favor the thermal entanglement creating. The dependence of the
thermal entanglement in this system on the linear coupling, the nonlinear
coupling, the magneti... | 0310169v2 |
2008-01-22 | LQR-based coupling gain for synchronization of linear systems | Synchronization control of coupled continuous-time linear systems is studied.
For identical systems that are stabilizable, a linear feedback law obtained via
algebraic Riccati equation is shown to synchronize any fixed directed network
of any number of coupled systems provided that the coupling is strong enough.
The st... | 0801.3390v1 |
2008-04-23 | Synchronization of oscillators coupled through an environment | We study synchronization of oscillators that are indirectly coupled through
their interaction with an environment. We give criteria for the stability or
instability of a synchronized oscillation. Using these criteria we investigate
synchronization of systems of oscillators which are weakly coupled, in the
sense that th... | 0804.3734v1 |
2008-05-13 | Coupled Dynamics on Networks | We study the synchronization of coupled dynamical systems on a variety of
networks. The dynamics is governed by a local nonlinear map or flow for each
node of the network and couplings connecting different nodes via the links of
the network. For small coupling strengths nodes show turbulent behavior but
form synchroniz... | 0805.1836v1 |
2008-09-19 | Phase Response Curves of Coupled Oscillators | Many real oscillators are coupled to other oscillators and the coupling can
affect the response of the oscillators to stimuli. We investigate phase
response curves (PRCs) of coupled oscillators. The PRCs for two weakly coupled
phase-locked oscillators are analytically obtained in terms of the PRC for
uncoupled oscillat... | 0809.3371v1 |
2011-02-15 | Reconstructing phase dynamics of oscillator networks | We generalize our recent approach to reconstruction of phase dynamics of
coupled oscillators from data [B. Kralemann et al., Phys. Rev. E, 77, 066205
(2008)] to cover the case of small networks of coupled periodic units. Starting
from the multivariate time series, we first reconstruct genuine phases and then
obtain the... | 1102.3064v1 |
2011-10-19 | Relaying phase synchrony in chaotic oscillator chains | We study the manner in which the effect of an external drive is transmitted
through mutually coupled response systems by examining the phase synchrony
between the drive and the response. Two different coupling schemes are used.
Homogeneous couplings are via the same variables, while heterogeneous couplings
are through ... | 1110.4318v1 |
2014-02-11 | Diagonal Couplings of Quantum Markov Chains | In this article we extend the coupling method from classical probability
theory to quantum Markov chains on atomic von Neumann algebras. In particular,
we establish a coupling inequality, which allow us to estimate convergence
rates by analyzing couplings. For a given tensor dilation we construct a
self-coupling of a M... | 1402.2448v1 |
2014-09-29 | Strong-coupling phases of the anisotropic Kardar-Parisi-Zhang equation | We study the anisotropic Kardar-Parisi-Zhang equation using nonperturbative
renormalization group methods. In contrast to a previous analysis in the
weak-coupling regime we find the strong coupling fixed point corresponding to
the isotropic rough phase to be always locally stable and unaffected by the
anisotropy even a... | 1409.8314v2 |
2015-02-12 | Synchronization in Networks of Linearly Coupled Dynamical Systems via Event-triggered Diffusions | In this paper, we utilize event-triggered coupling configuration to realize
synchronization of linearly coupled dynamical systems. Here, the diffusion
couplings are set up from the latest observations of the nodes of its
neighborhood and the next observation time is triggered by the proposed
criteria based on the local... | 1502.03602v1 |
2015-03-09 | Enhanced electromechanical coupling of a nanomechanical resonator to coupled superconducting cavities | We investigate the electromechanical coupling between a nanomechanical
resonator and two parametrically coupled superconducting coplanar waveguide
cavities that are driven by a two-mode squeezed microwave source. We show that,
with the selective coupling of the resonator to the cavity Bogoliubov modes,
the radiation-pr... | 1503.02393v2 |
2015-09-15 | Microscopic coupled-channel calculations of nucleus-nucleus scattering including chiral three-nucleon-force effects | We analyze $^{16}$O-$^{16}$O and $^{12}$C-$^{12}$C scattering with the
microscopic coupled-channels method and investigate the coupled-channels and
three-nucleon-force (3NF) effects on elastic and inelastic cross sections. In
the microscopic coupled-channels calculation, the Melbourne g-matrix
interaction modified acco... | 1509.04459v1 |
2015-11-25 | Persistence of Network Synchronization under Nonidentical Coupling Functions | We investigate the persistence of synchronization in networks of diffusively
coupled oscillators when the coupling functions are nonidentical. Under mild
conditions, we uncover the influence of the network interaction structure on
the mismatches of the coupling function. We show that Erd\"os-R\'enyi random
graphs suppo... | 1511.08065v1 |
2016-02-29 | Ab initio determination of effective electron-phonon coupling factor in copper | The electron temperature dependent electron density of states, Fermi-Dirac
distribution, and electron-phonon spectral function are computed as
prerequisites before achieving effective electron-phonon coupling factor. The
obtained coupling factor is implemented into a molecular dynamics (MD) and
two-temperature model (T... | 1602.09031v2 |
2008-07-28 | Gap anisotropy and universal pairing scale in a spin fluctuation model for cuprates | We consider the evolution of d-wave pairing, mediated by nearly critical spin
fluctuations, with the coupling strength. We show that the onset temperature
for pairing, T*, smoothly evolves between weak and strong coupling, passing
through a broad maximum at intermediate coupling. At strong coupling, T* is of
order the ... | 0807.4404v1 |
2011-11-26 | Solutions of Several Coupled Discrete Models in terms of Lame Polynomials of Arbitrary Order | Coupled discrete models abound in several areas of physics. Here we provide
an extensive set of exact quasiperiodic solutions of a number of coupled
discrete models in terms of Lam\'e polynomials of arbitrary order. The models
discussed are (i) coupled Salerno model, (ii) coupled Ablowitz-Ladik model,
(iii) coupled $\p... | 1111.6138v1 |
2017-05-03 | Internal control of systems of semilinear coupled 1-D wave equations | We prove the internal controllability of some systems of two coupled wave
equations in one space dimension, with one control, under certain conditions on
the coupling. To do this we apply the "fictitious control method" in two cases:
general systems with a "non-degenerate" coupling, and a particular case where
the coup... | 1705.01383v1 |
2018-03-09 | Non-local coupling between antiferromagnets and ferromagnets in cavities | Microwaves couple to magnetic moments in both ferromagnets and
antiferromagnets. Although the magnons in ferromagnets and antiferromagnets
radically differ, they can become entangled via strong coupling to the same
microwave mode in a cavity. The equilibrium configuration of the magnetic
moments crucially governs the c... | 1803.03486v1 |
2019-04-19 | Symmetry Breaking Creates Electro-Momentum Coupling in Piezoelectric Metamaterials | Metamaterials posses microstructure designed to acquire properties not found
in nature. An epitome in acoustics and solid mechanics is Willis coupling,
which refers to the particle velocity-stress coupling, and of great
significance since it controls mechanical waves. We here reveal new couplings,
analogous to Willis c... | 1904.09180v2 |
2017-07-29 | EIT-Enhanced Coupled-Resonance Spectroscopy | Coupled-resonance spectroscopy has been recently reported and applied for
spectroscopic measurements and laser stabilizations. With coupled-resonance
spectroscopy, one may indirectly measure some transitions between the excited
states that are hard to be measured directly because of the lack of populations
in the excit... | 1707.09559v1 |
2013-06-25 | Dynamical spin-spin coupling of quantum dots | We carried out a nested Schrieffer-Wolff transformation of an Anderson
two-impurity Hamiltonian to study the spin-spin coupling between two dynamical
quantum dots under the influence of rotating transverse magnetic field. As a
result of the rotating field, we predict a novel Ising type spin-spin coupling
mechanism betw... | 1306.5889v2 |
2018-08-14 | Dynamical and Coupling Structure of Pulse-Coupled Networks in Maximum Entropy Analysis | Maximum entropy principle (MEP) analysis with few non-zero effective
interactions successfully characterizes the distribution of dynamical states of
pulse-coupled networks in many experiments, e.g., in neuroscience. To better
understand the underlying mechanism, we found a relation between the dynamical
structure, i.e.... | 1808.04499v1 |
2020-03-11 | Pattern in non-linearly coupled network of identical Thomas oscillators | We have investigated synchronized pattern in a network of Thomas oscillators
coupled with sinusoidal nonlinear coupling. Pattern like chimera states are not
only observed for many non-locally coupled oscillators but there is a signature
of it even for locally coupled few oscillators. For certain range of
intermediate c... | 2003.05210v2 |
2020-08-26 | Caccioppoli-type estimates and $\mathcal{H}$-Matrix approximations to inverses for FEM-BEM couplings | We consider three different methods for the coupling of the finite element
method and the boundary element method, the Bielak-MacCamy coupling, the
symmetric coupling, and the Johnson-N\'ed\'elec coupling. For each coupling we
provide discrete interior regularity estimates. As a consequence, we are able
to prove the ex... | 2008.11498v1 |
2021-05-06 | Snaking bifurcations of localized patterns on ring lattices | We study the structure of stationary patterns in bistable lattice dynamical
systems posed on rings with a symmetric coupling structure in the regime of
small coupling strength. We show that sparse coupling (for instance,
nearest-neighbour or next-nearest-neighbour coupling) and all-to-all coupling
lead to significantly... | 2105.02380v1 |
2023-07-27 | High-order phase reduction for coupled 2D oscillators | Phase reduction is a general approach to describe coupled oscillatory units
in terms of their phases, assuming that the amplitudes are enslaved. For such a
reduction, the coupling should be small, but one also expects the reduction to
be valid for finite coupling. This paper presents a general framework allowing
us to ... | 2307.14711v2 |
2023-08-20 | New Solutions of Coupled Nonlocal NLS and Coupled Nonlocal mKdV Equations | We provide several novel solutions of the coupled Ablowitz-Musslimani (AM)
version of the nonlocal nonlinear Schr\"odinger (NLS) equation and the coupled
nonlocal modified Korteweg-de Vries (mKdV) equations. In each case we compare
and contrast the corresponding solutions of the relevant coupled local
equations. Furthe... | 2308.10163v1 |
2023-09-07 | Axion-Gauge Coupling Quantization with a Twist | The possible couplings of an axion to gauge fields depend on the global
structure of the gauge group. If the Standard Model gauge group is minimal, or
equivalently if fractionally charged color-singlet particles are forbidden,
then the QCD axion's Chern-Simons couplings to photons and gluons obey
correlated quantizatio... | 2309.03939v1 |
2011-03-17 | Waltzing peakons and compacton pairs in a cross-coupled Camassa-Holm equation | We consider singular solutions of a system of two cross-coupled Camassa-Holm
(CCCH) equations. This CCCH system admits peakon solutions, but it is not in
the two-component CH integrable hierarchy. The system is a pair of coupled
Hamiltonian partial differential equations for two types of solutions on the
real line, eac... | 1103.3326v1 |
2017-02-01 | Time-varying coupling functions: dynamical inference and cause of synchronization transitions | Interactions in nature can be described by their coupling strength, direction
of coupling and coupling function. The coupling strength and directionality are
relatively well understood and studied, at least for two interacting systems,
however there can be a complexity in the interactions uniquely dependent on the
coup... | 1702.00202v1 |
2018-02-15 | Mitigation of dynamical instabilities in laser arrays via non-Hermitian coupling | Arrays of coupled semiconductor lasers are systems possessing complex
dynamical behavior that are of major interest in photonics and laser science.
Dynamical instabilities, arising from supermode competition and slow carrier
dynamics, are known to prevent stable phase locking in a wide range of
parameter space, requiri... | 1802.05439v2 |
2017-05-23 | Effect of Heterogeneity in Models of El-Niño Southern Oscillations | The emergence of oscillations in models of the El-Ni\~no effect is of utmost
relevance. Here we investigate a coupled nonlinear delay differential system
modeling theEl-Ni\~no/ Southern Oscillation (ENSO) phenomenon, which arises
through the strong coupling of the ocean-atmosphere system. In particular, we
study the te... | 1705.08171v1 |
2020-10-02 | High-Order Accuracy Computation of Coupling Functions for Strongly Coupled Oscillators | We develop a general framework for identifying phase reduced equations for
finite populations of coupled oscillators that is valid far beyond the weak
coupling approximation. This strategy represents a general extension of the
theory from [Wilson and Ermentrout, Phys. Rev. Lett 123, 164101 (2019)] and
yields coupling f... | 2010.01194v2 |
2021-01-29 | One dimensional martingale rearrangement couplings | We are interested in martingale rearrangement couplings. As introduced by
Wiesel [37] in order to prove the stability of Martingale Optimal Transport
problems, these are projections in adapted Wasserstein distance of couplings
between two probability measures on the real line in the convex order onto the
set of marting... | 2101.12651v1 |
2022-03-15 | Single-photon scattering in a giant-molecule waveguide-QED system | We study the coherent single-photon scattering in a one-dimensional waveguide
coupled to a giant artificial molecule consisting of two coupled giant atoms.
Since each giant atom couples to the waveguide via two coupling points, the
couplings of the molecule with the waveguide have three different coupling
configuration... | 2203.07812v2 |
2004-03-30 | Stability of vacuum in coupled directed percolation processes | We study the absorbing phase transitions in coupled directed percolation (DP)
processes with $N$-species particles in one dimension. The interspecies
coupling is linear, bidirectional, and excitatory. We find that the presence of
a spontaneous annihilation process $A\to 0$ is essential in stabilizing the
absorbing phas... | 0403730v1 |
2006-02-26 | Controllable Coupling in Phase-Coupled Flux Qubits | We propose a scheme for tunable coupling of phase-coupled flux qubits. The
phase-coupling scheme can provide a strong coupling strength of the order of
Josephson coupling energy of Josephson junctions in the connecting loop, while
the previously studied inductive coupling scheme cannot provide due to small
mutual induc... | 0602604v3 |
2006-10-13 | Electrical transport through a single-electron transistor strongly coupled to an oscillator | We investigate electrical transport through a single-electron transistor
coupled to a nanomechanical oscillator. Using a combination of a
master-equation approach and a numerical Monte Carlo method, we calculate the
average current and the current noise in the strong-coupling regime, studying
deviations from previously... | 0610358v1 |
2005-07-02 | Staticity, Self-Similarity and Critical Phenomena in a Self-Gravitating Nonlinear Sigma Model | The main part of the thesis deals with continuously and discretely
self-similar solutions and type II critical phenomena in a family of
self-gravitating non-linear sigma-models. The phenomena strongly depend on the
dimensionless coupling constant. For small couplings we numerically construct
continuously self-similar (... | 0507009v1 |
2003-11-10 | Meson-Baryon Couplings from QCD Sum Rules | Coupling constants of the pseudoscalar mesons to the octet baryons are
calculated in the QCD sum rule approach. Two-point correlation function of the
baryons are evaluated in a single meson state and the vacuum, which yields the
designated coupling. The emphasis is on the flavor SU(3) structure of the
coupling constant... | 0311117v1 |
2001-07-20 | Dynamics of Coupling Functions in Globally Coupled Maps: Size, Periodicity and Stability of Clusters | It is shown how different globally coupled map systems can be analyzed under
a common framework by focusing on the dynamics of their respective global
coupling functions. We investigate how the functional form of the coupling
determines the formation of clusters in a globally coupled map system and the
resulting period... | 0107046v1 |
2010-10-24 | Correlated couplings and robustness of coupled networks | Most real-world complex systems can be modelled by coupled networks with
multiple layers. How and to what extent the pattern of couplings between
network layers may influence the interlaced structure and function of coupled
networks are not clearly understood. Here we study the impact of correlated
inter-layer coupling... | 1010.4971v1 |
2011-01-06 | Effects of gradient coupling on amplitude death in nonidentical oscillators | In this work, we investigate gradient coupling effect on amplitude death in
an array of N cou- pled nonidentical oscillators with no-flux boundary
conditions and periodic boundary conditions respectively. We find that the
effects of gradient coupling on amplitude death in diffusive coupled
nonidentical oscillators is q... | 1101.1127v1 |
2011-06-27 | Running coupling corrections to inclusive gluon production | We calculate running coupling corrections for the lowest-order gluon
production cross section in high energy hadronic and nuclear scattering using
the BLM scale-setting prescription. At leading order there are three powers of
fixed coupling; in our final answer, these three couplings are replaced by
seven factors of ru... | 1106.5456v1 |
2011-08-31 | Curvature-induced spin-orbit coupling and spin relaxation in a chemically clean single-layer graphene | The study of spin-related phenomena in materials requires knowledge on the
precise form of effective spin-orbit coupling of conducting carriers in the
solid-states systems. We demonstrate theoretically that curvature induced by
corrugations or periodic ripples in single-layer graphenes generates two types
of effective ... | 1108.6128v3 |
2013-02-28 | Coupled skinny baker's maps and the Kaplan-Yorke conjecture | The Kaplan-Yorke conjecture states that for "typical" dynamical systems with
a physical measure, the information dimension and the Lyapunov dimension
coincide. We explore this conjecture in a neighborhood of a system for which
the two dimensions do not coincide because the system consists of two uncoupled
subsystems. W... | 1303.0030v1 |
2013-11-26 | Measurement of Higgs couplings and self-coupling at the ILC | In the Standard Model (SM) the couplings of the Higgs boson to SM particles
and itself (self-couplings) are uniquely specified once the masses of the
particles in question as well as the Higgs boson mass are given. Precision
measurements of these couplings in the future collider experiments are the key
to either verify... | 1311.6528v1 |
2015-04-11 | Collapse of spin-orbit coupled Bose-Einstein condensates | A finite-size quasi two-dimensional Bose-Einstein condensate collapses if the
attraction between atoms is sufficiently strong. Here we present a theory of
collapse for condensates with the interatomic attraction and spin-orbit
coupling. We consider two realizations of spin-orbit coupling: the axial Rashba
coupling and ... | 1504.02860v1 |
2016-01-29 | Spin torque driven dynamics of a coupled two layer structure: interplay between conservative and dissipative coupling | In this manuscript the general concepts of spin wave theory are adapted to
the dynamics of a self-polarized system based on two layers coupled via
interlayer exchange (conservative coupling) and mutual spin torque (dissipative
coupling). An analytical description of the non-linear dynamics is proposed and
validated thr... | 1601.08150v1 |
2016-04-04 | Disturbance scaling in bidirectional vehicle platoons with different asymmetry in position and velocity coupling | This paper considers a string of vehicles where the local control law uses
the states of the vehicle's immediate predecessor and follower. The coupling
towards the preceding vehicle can be chosen different to the coupling towards
the following vehicle, which is often referred to as an asymmetric
bidirectional string. F... | 1604.00868v2 |
2017-03-22 | Modification of Higgs Couplings in Minimal Composite Models | We present a comprehensive study of the modifications of Higgs couplings in
the SO(5)/SO(4) minimal composite model. We focus on three couplings of central
importance to Higgs phenomenology at the LHC: the couplings to top and bottom
quarks and the coupling to two gluons. We consider three possible embeddings of
the fe... | 1703.07791v2 |
2018-11-12 | Axion couplings to electroweak gauge bosons | We determine the model-independent component of the couplings of axions to
electroweak gauge bosons, induced by the minimal coupling to QCD inherent to
solving the strong CP problem. The case of the invisible QCD axion is developed
first, and the impact on $W$ and $Z$ axion couplings is discussed. The analysis
is exten... | 1811.05466v1 |
2018-12-10 | Coupled Sasaki-Ricci solitons | Motivated by the study of coupled K\"ahler-Einstein metrics by Hultgren and
Witt Nystr\"om and coupled K\"ahler-Ricci solitons by Hultgren, we study in
this paper coupled Sasaki-Einstein metrics and coupled Sasaki-Ricci solitons.
We first show an isomorphism between the Lie algebra of all transverse
holomorphic vector ... | 1812.03784v2 |
2019-08-05 | Tunable strong coupling of two adjacent optical λ/2 Fabry-Pérot microresonators | Optical half-wave microresonators enable to control the optical mode density
around a quantum system and thus to modify the temporal emission properties. If
the coupling rate exceeds the damping rate, strong coupling between a
microresonator and a quantum system can be achieved, leading to a coherent
energy exchange an... | 1908.01566v1 |
2019-08-09 | Coherent coupling completes an unambiguous optomechanical classification framework | In most optomechanical systems a movable mirror is a part of an optical
cavity, and its oscillation modulates either the resonance frequency of the
cavity, or its coupling to the environment. There exists the third option --
which we call a "coherent coupling" -- when the mechanical oscillation couples
several non-dege... | 1908.03372v1 |
2018-10-08 | Zeeman spin-orbit coupling in antiferromagnetic conductors | This article is a brief review of Zeeman spin-orbit coupling, arising in a
low-carrier commensurate N\'eel antiferromagnet subject to magnetic field. The
field tends to lift the degeneracy of the electron spectrum. However, a hidden
symmetry protects double degeneracy of Bloch eigenstates at special momenta in
the Bril... | 1810.03720v1 |
2015-12-23 | Unravelling the non-standard top and Higgs couplings in associated top-Higgs production at the High-luminosity LHC | We study the sensitivities of non-standard top and Higgs couplings in the
$pp\to thj$ process at the 14 TeV high-luminosity run of Large Hadron Collider
(HL-LHC). We calculate top polarization and construct various lab-frame
observables to study their sensitivities on anomalous couplings at HL-LHC. Both
anomalous Wtb a... | 1512.07408v1 |
2017-04-23 | From discrete nonlocal nonlinear Schrödinger equation to coupled discrete Heisenberg ferromagnet equation | In this paper, we show that the nonlocal discrete focusing nonlinear
Schr\"odinger (NLS) and nonlocal discrete defocusing NLS equation are gauge
equivalent to the discrete coupled Heisenberg ferromagnet (HF) equation and the
discrete modified coupled HF equation, respectively. Under the continuous
limit, the discrete c... | 1704.06937v1 |
2019-07-15 | Cavity mediated dissipative coupling of distant magnetic moments: theory and experiment | We investigate long-range coherent and dissipative coupling between two
spatially separated magnets while both are coupled to a microwave cavity. A
careful examination of the system shows that the indirect interaction between
two magnon modes is dependent on their individual mechanisms of direct coupling
to the cavity.... | 1907.06783v1 |
2020-03-11 | O-plane couplings at order $α'^2$: one R-R field strength | It is known that the anomalous Chern-Simons (CS) coupling of O$_p$-plane is
not consistent with the T-duality transformations. Compatibility of this
coupling with the T-duality requires the inclusion of couplings involving one
R-R field strength. In this paper we find such couplings at order $\alpha'^2$.
By requiring... | 2003.05359v2 |
2020-11-23 | Impact of Magnetic Coupling and Density on STT-MRAM Performance | As a unique mechanism for MRAMs, magnetic coupling needs to be accounted for
when designing memory arrays. This paper models both intra- and inter-cell
magnetic coupling analytically for STT-MRAMs and investigates their impact on
the write performance and retention of MTJ devices, which are the data-storing
elements of... | 2011.11349v1 |
2021-04-23 | Existence of a negative next-nearest-neighbor coupling in evanescently coupled dielectric waveguides | We experimentally demonstrate that the next-nearest-neighbor(NNN)coupling in
an array of waveguides can naturally be negative. To do so, dielectric zig-zag
shaped waveguide arrays are fabricated with direct laser writing (DLW). By
changing the angle of the zig-zag shape it is possible to tune between positive
and negat... | 2104.11711v1 |
2022-03-30 | Resonance induced by higher-order coupling diversity | The studies of collective oscillations induced by higher-order interactions
point out the necessity of group effect in coupling modelization. As yet the
related advances are mainly concentrated on nonlinear coupling patterns and
cannot be straightforwardly extended to the linear ones. In present work, we
introduce the ... | 2203.16010v1 |
2022-10-27 | Unified Treatment for Scattering, Absorption, and Photoluminescence of coupled Metallic Nanoparticles with Vertical Polarized Excitation | Optical properties of coupled metallic particles (MNPs) have been widely
reported due to their unique characteristics such as peak shift/splitting of
the coupling spectra and electromagnetic enhancement at sub-wavelength scale,
etc. In a previous work, we have investigated the coupling spectra of two
coupled MNPs with ... | 2211.04469v1 |
2022-12-19 | On the synchronization of the Kuramoto-type model of oscillators with lossy couplings | We consider the problem of synchronization of coupled oscillators in a
Kuramoto-type model with lossy couplings. Kuramoto models have been used to
gain insight on the stability of power networks which are usually nonlinear and
involve large scale interconnections. Such models commonly assume lossless
couplings and Lyap... | 2212.09634v1 |
2023-01-27 | Tunable Strong Magnon-Magnon Coupling in Two-Dimensional Array of Diamond Shaped Ferromagnetic Nanodots | Hybrid magnonics involving coupling between magnons and different quantum
particles have been extensively studied during past few years for varied
interests including quantum electrodynamics. In such systems, magnons in
magnetic materials with high spin density are utilized where the coupling
strength is collectively e... | 2301.11583v1 |
2023-04-26 | Critical Cavity-Magnon Polariton Mediated Strong Long-Distance Spin-Spin Coupling | Strong long-distance spin-spin coupling is desperately demanded for
solid-state quantum information processing, but it is still challenged. Here,
we propose a hybrid quantum system, consisting of a coplanar waveguide (CPW)
resonator weakly coupled to a single nitrogen-vacancy spin in diamond and a
yttrium-iron-garnet (... | 2304.13553v2 |
2023-08-14 | N-Body Oscillator Interactions of Higher-Order Coupling Functions | We introduce a method to identify phase equations that include $N$-body
interactions for general coupled oscillators valid far beyond the weak coupling
approximation. This strategy is an extension of the theory from [Park and
Wilson, SIADS 20.3 (2021)] and yields coupling functions for $N\geq2$
oscillators for arbitrar... | 2308.07425v2 |
2024-01-19 | Diffusive coupling facilitates and impedes noise-induced escape in interacting bistable elements | Diverse complex systems often undergo sudden changes in their states, such as
epileptic seizures, climate changes, and social uprisings. Such behavior has
been modeled by noise-induced escape of bistable elements, which is the escape
from an attracting state driven by a fluctuation in the system's state. We
consider a ... | 2401.10489v1 |
2024-03-27 | Unveiling the inconsistency of the Proca theory with non-minimal coupling to gravity | We study the degrees of freedom of the Proca theory, non-minimally coupled to
gravity. In the Minkowski background, this theory propagates five degrees of
freedom - a massive longitudinal mode, two massive vector ones, and two
massless tensor modes. At first sight, the non-linear coupling between the
metric perturbatio... | 2403.18673v2 |
2012-09-04 | Comment on the frozen QCD coupling | The frozen QCD coupling is a parameter often used as an effective fixed
coupling. It is supposed to mimic both the running coupling effects and the
lack of knowledge of alpha_s in the infrared region. Usually the value of the
frozen coupling is fixed from the analysis of the experimental data. We present
a novel way to... | 1209.0564v2 |
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