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The relaxation dynamics of a viscous silica melt: II The intermediate
scattering functions: We use molecular dynamics computer simulations to study the relaxation
dynamics of a viscous melt of silica. The coherent and incoherent intermediate
scattering functions, F_d(q,t) and F_s(q,t), show a crossover from a nearly
... | cond-mat_stat-mech |
Attractive and repulsive polymer-mediated forces between scale-free
surfaces: We consider forces acting on objects immersed in, or attached to, long
fluctuating polymers. The confinement of the polymer by the obstacles results
in polymer-mediated forces that can be repulsive (due to loss of entropy) or
attractive (if... | cond-mat_stat-mech |
Cooperative Transport of Brownian Particles: We consider the collective motion of finite-sized, overdamped Brownian
particles (e.g., motor proteins) in a periodic potential. Simulations of our
model have revealed a number of novel cooperative transport phenomena,
including (i) the reversal of direction of the net curre... | cond-mat_stat-mech |
On controlling simple dynamics by a disagreement function: We introduce a formula for the disagreement function which is used to control
a recently proposed dynamics of the Ising spin system. This leads to four
different phases of the Ising spin chain in a zero temperature. One of these
phases is doubly degenerated (an... | cond-mat_stat-mech |
Statistics of the work done by splitting a one-dimensional
quasi-condensate: Motivated by experiments on splitting one-dimensional quasi-condensates, we
study the statistics of the work done by a quantum quench in a bosonic system.
We discuss the general features of the probability distribution of the work and
focus ... | cond-mat_stat-mech |
Domain-wall structure of a classical Heisenberg ferromagnet on a Mobius
strip: We study theoretically the structure of domain walls in ferromagnetic states
on Mobius strips. A two-dimensional classical Heisenberg ferromagnet with
single-site anisotropy is treated within a mean-field approximation by taking
into accou... | cond-mat_stat-mech |
Legendre transform structure and extremal properties of the relative
Fisher information: Variational extremization of the relative Fisher information (RFI, hereafter)
is performed. Reciprocity relations, akin to those of thermodynamics are
derived, employing the extremal results of the RFI expressed in terms of
proba... | cond-mat_stat-mech |
Counterintuitive effect of gravity on the heat capacity of a metal
sphere: re-examination of a well-known problem: A well-known high-school problem asking the final temperature of two spheres
that are given the same amount of heat, one lying on a table and the other
hanging from a thread, is re-examined. The conventi... | cond-mat_stat-mech |
Randomly dilute Ising model: A nonperturbative approach: The N-vector cubic model relevant, among others, to the physics of the
randomly dilute Ising model is analyzed in arbitrary dimension by means of an
exact renormalization-group equation. This study provides a unified picture of
its critical physics between two an... | cond-mat_stat-mech |
Optimal tuning of a confined Brownian information engine: A Brownian information engine is a device extracting a mechanical work from a
single heat bath by exploiting the information on the state of a Brownian
particle immersed in the bath. As for engines, it is important to find the
optimal operating condition that yi... | cond-mat_stat-mech |
Correlation functions of the integrable spin-s chain: We study the correlation functions of su(2) invariant spin-s chains in the
thermodynamic limit. We derive non-linear integral equations for an auxiliary
correlation function $\omega$ for any spin s and finite temperature T. For the
spin-3/2 chain for arbitrary tempe... | cond-mat_stat-mech |
Investigation of the seismicity after the initiation of a Seismic
Electric Signal activity until the main shock: The behavior of seismicity in the area candidate to suffer a main shock is
investigated after the observation of the Seismic Electric Signal activity
until the impending mainshock. This makes use of the co... | cond-mat_stat-mech |
Critical dynamics of nonconserved $N$-vector model with anisotropic
nonequilibrium perturbations: We study dynamic field theories for nonconserving $N$-vector models that are
subject to spatial-anisotropic bias perturbations. We first investigate the
conditions under which these field theories can have a single lengt... | cond-mat_stat-mech |
Single-vehicle data of highway traffic: microscopic description of
traffic phases: We present a detailed analysis of single-vehicle data which sheds some light
on the microscopic interaction of the vehicles. Besides the analysis of free
flow and synchronized traffic the data sets especially provide information
about ... | cond-mat_stat-mech |
Coil-Globule transition of a single short polymer chain - an exact
enumeration study: We present an exact enumeration study of short SAWs in two as well as three
dimensions that addresses the question, `what is the shortest walk for which
the existence of all the three phases - coil, globule and the {\it theta} -
cou... | cond-mat_stat-mech |
How cooperatively folding are homopolymer molecular knots?: Detailed thermodynamic analysis of complex systems with multiple stable
configurational states allows for insight into the cooperativity of each
individual transition. In this work we derive a heat capacity decomposition
comprising contributions from each indi... | cond-mat_stat-mech |
Finite-time scaling for kinetic rough interfaces: We consider discrete models of kinetic rough interfaces that exhibit
space-time scale-invariance in height-height correlation. A generic scaling
theory implies that the dynamical structure factor of the height profile can
uniquely characterize the underlying dynamics. W... | cond-mat_stat-mech |
Fermionic theory of nonequilibrium steady states: As the quantification of metabolism, nonequilibrium steady states play a
central role in living matter, but are beyond the purview of equilibrium
statistical mechanics. Here we develop a fermionic theory of nonequilibrium
steady states in continuous-time Markovian syste... | cond-mat_stat-mech |
Phases fluctuations, self-similarity breaking and anomalous scalings in
driven nonequilibrium critical phenomena: We study in detail the dynamic scaling of the three-dimensional (3D) Ising
model driven through its critical point on finite-size lattices and show that a
series of new critical exponents are needed to ac... | cond-mat_stat-mech |
Shearing of loose granular materials: A statistical mesoscopic model: A two-dimensional lattice model for the formation and evolution of shear
bands in granular media is proposed. Each lattice site is assigned a random
variable which reflects the local density. At every time step, the strain is
localized along a single... | cond-mat_stat-mech |
Understanding how both the partitions of a bipartite network affect its
one-mode projection: It is a well-known fact that the degree distribution (DD) of the nodes in a
partition of a bipartite network influences the DD of its one-mode projection
on that partition. However, there are no studies exploring the effect o... | cond-mat_stat-mech |
Phase-ordering dynamics in itinerant quantum ferromagnets: The phase-ordering dynamics that result from domain coarsening are considered
for itinerant quantum ferromagnets. The fluctuation effects that invalidate the
Hertz theory of the quantum phase transition also affect the phase ordering.
For a quench into the orde... | cond-mat_stat-mech |
A detailed investigation into near degenerate exponential random graphs: The exponential family of random graphs has been a topic of continued
research interest. Despite the relative simplicity, these models capture a
variety of interesting features displayed by large-scale networks and allow us
to better understand ho... | cond-mat_stat-mech |
Entropy Production of Open Quantum System in Multi-Bath Environment: We study the entropy production of an open quantum system surrounded by a
complex environment consisting of several heat baths at different temperatures.
The detailed balance is elaborated in view of the distinguishable channels
provided by the coupli... | cond-mat_stat-mech |
Jamming and pattern formation in models of segregation: We investigate the Schelling model of social segregation, formulated as an
intrinsically non-equilibrium system, in which the agents occupy districts (or
patches) rather than sites on a grid. We show that this allows the equations
governing the dynamical behaviour... | cond-mat_stat-mech |
Exploration of Order in Chaos with Replica Exchange Monte Carlo: A method for exploring unstable structures generated by nonlinear dynamical
systems is introduced. It is based on the sampling of initial conditions and
parameters by Replica Exchange Monte Carlo (REM), and efficient both for the
search of rare initial co... | cond-mat_stat-mech |
Nanoswimmers in a ratchet potential: Effects of a transverse rocking
force: We study the dynamics of a chemical nanoswimmer in a ratchet potential, which
is periodically rocked in the transverse direction. As a result of the
mechanochemical coupling, the self-propulsion velocity becomes force-dependent
and particle t... | cond-mat_stat-mech |
Detecting fuzzy community structures in complex networks with a Potts
model: A fast community detection algorithm based on a q-state Potts model is
presented. Communities in networks (groups of densely interconnected nodes that
are only loosely connected to the rest of the network) are found to coincide
with the doma... | cond-mat_stat-mech |
Ultracold Fermion Cooling Cycle using Heteronuclear Feshbach Resonances: We consider an ideal gas of Bose and Fermi atoms in a harmonic trap, with a
Feshbach resonance in the interspecies atomic scattering that can lead to
formation of fermionic molecules. We map out the phase diagram for this
three-component mixture i... | cond-mat_stat-mech |
Low self-affine exponents of fracture surfaces of glass ceramics: The geometry of post mortem rough fracture surfaces of porous glass ceramics
made of sintered glass beads is shown experimentally to be self-affine with an
exponent zeta=0.40 (0.04) remarkably lower than the 'universal' value zeta=0.8
frequently measured... | cond-mat_stat-mech |
Glassy behavior of the site frustrated percolation model: The dynamical properties of the site frustrated percolation model are
investigated and compared with those of glass forming liquids. When the density
of the particles on the lattice becomes high enough, the dynamics of the model
becomes very slow, due to geometr... | cond-mat_stat-mech |
Variational HFB Equations in the Thomas-Fermi Limit for Ultracold
Trapped Gases: We derive variationally the HFB equations for a trapped self-interacting Bose
gas at finite temperature. In the Thomas-Fermi limit, we obtain simple
expressions for the condensate, the non condensate and the anomalous densities.
Their be... | cond-mat_stat-mech |
Parameters of state in the global thermodynamics of binary ideal gas
mixtures in a stationary heat flow: We formulate the first law of global thermodynamics for stationary states of
the binary ideal gas mixture subjected to heat flow. We map the non-uniform
system onto the uniform one and show that the internal energ... | cond-mat_stat-mech |
Single-particle excitations and the order parameter for a trapped
superfluid Fermi gas: We reveal a strong influence of a superfluid phase transition on the
character of single-particle excitations of a trapped neutral-atom Fermi gas.
Below the transition temperature the presence of a spatially inhomogeneous
order pa... | cond-mat_stat-mech |
Pricing Derivatives by Path Integral and Neural Networks: Recent progress in the development of efficient computational algorithms to
price financial derivatives is summarized. A first algorithm is based on a path
integral approach to option pricing, while a second algorithm makes use of a
neural network parameterizati... | cond-mat_stat-mech |
Relativistic Nonextensive Thermodynamics: Starting from the basic prescriptions of the Tsallis' nonextensive
thermostatistics, i.e. generalized entropy and normalized q-expectation values,
we study the relativistic nonextensive thermodynamics and derive a Boltzmann
transport equation that implies the validity of the H-... | cond-mat_stat-mech |
Coulomb Systems with Ideal Dielectric Boundaries: Free Fermion Point and
Universality: A two-component Coulomb gas confined by walls made of ideal dielectric
material is considered. In two dimensions at the special inverse temperature
$\beta = 2$, by using the Pfaffian method, the system is mapped onto a
four-compone... | cond-mat_stat-mech |
The Magnetic Eden Model: In the magnetic Eden model (MEM), particles have a spin and grow in contact
with a thermal bath. Although Ising-like interactions affect the growth
dynamics, deposited spins are frozen and not allowed to flip. This review
article focuses on recent developments and future prospects, such as
spon... | cond-mat_stat-mech |
Constructing effective free energies for dynamical quantum phase
transitions in the transverse-field Ising chain: The theory of dynamical quantum phase transitions represents an attempt to
extend the concept of phase transitions to the far from equilibrium regime.
While there are many formal analogies to conventional... | cond-mat_stat-mech |
Symmetries and zero modes in sample path large deviations: Sharp large deviation estimates for stochastic differential equations with
small noise, based on minimizing the Freidlin-Wentzell action functional under
appropriate boundary conditions, can be obtained by integrating certain matrix
Riccati differential equatio... | cond-mat_stat-mech |
On the spatially periodic ordering in the system of electrons above the
surface of liquid helium in an external electric field: A theory of equilibrium states of electrons above a liquid helium surface in
the presence of an external clamping field is built based on the first
principles of quantum statistics for the s... | cond-mat_stat-mech |
Random Matrix Theory approach to Mesoscopic Fluctuations of Heat Current: We consider an ensemble of fully connected networks of N oscillators coupled
harmonically with random springs and show, using Random Matrix Theory
considerations, that both the average phonon heat current and its variance are
scale-invariant and ... | cond-mat_stat-mech |
Asymptotic Dynamics of Breathers in Fermi-Pasta-Ulam Chains: We study the asymptotic dynamics of breathers in finite Fermi-Pasta-Ulam
chains at zero and non-zero temperatures. While such breathers are essentially
stationary and very long-lived at zero temperature, thermal fluctuations tend
to lead to breather motion an... | cond-mat_stat-mech |
Active XY model on a substrate: Density fluctuations and phase ordering: We explore the generic long wavelength properties of an active XY model on a
substrate, consisting of collection of nearly phase-ordered active XY spins in
contact with a diffusing, conserved species, as a representative system of
active spinners ... | cond-mat_stat-mech |
Ballistic spin transport in a periodically driven integrable quantum
system: We demonstrate ballistic spin transport of an integrable unitary quantum
circuit, which can be understood either as a paradigm of an integrable
periodically driven (Floquet) spin chain, or as a Trotterized anisotropic
($XXZ$) Heisenberg spin... | cond-mat_stat-mech |
Collision densities and mean residence times for $d$-dimensional
exponential flights: In this paper we analyze some aspects of {\em exponential flights}, a
stochastic process that governs the evolution of many random transport
phenomena, such as neutron propagation, chemical/biological species migration,
or electron ... | cond-mat_stat-mech |
A Simple Model of Superconducting Vortex Avalanches: We introduce a simple lattice model of superconducting vortices driven by
repulsive interactions through a random pinning potential. The model describes
the behavior at the scale of the London length lambda or larger. It
self-organizes to a critical state, characteri... | cond-mat_stat-mech |
Information Geometry, Phase Transitions, and Widom Lines : Magnetic and
Liquid Systems: We study information geometry of the thermodynamics of first and second order
phase transitions, and beyond criticality, in magnetic and liquid systems. We
establish a universal microscopic characterization of such phase transitio... | cond-mat_stat-mech |
Entanglement in Far From Equilibrium Stationary States: We present four estimators of the entanglement (or interdepency) of
ground-states in which the coefficients are all real nonnegative and therefore
can be interpreted as probabilities of configurations. Such ground-states of
hermitian and non-hermitian Hamiltonians... | cond-mat_stat-mech |
Rejoinder to the Response arXiv:0812.2330 to 'Comment on a recent
conjectured solution of the three-dimensional Ising model': We comment on Z. D. Zhang's Response [arXiv:0812.2330] to our recent Comment
[arXiv:0811.3876] addressing the conjectured solution of the three-dimensional
Ising model reported in [arXiv:0705.... | cond-mat_stat-mech |
Injected Power Fluctuations in 1D Dissipative Systems: Using fermionic techniques, we compute exactly the large deviation function
(ldf) of the time-integrated injected power in several one-dimensional
dissipative systems of classical spins. The dynamics are T=0 Glauber dynamics
supplemented by an injection mechanism, ... | cond-mat_stat-mech |
Vertex dynamics during domain growth in three-state models: Topological aspects of interfaces are studied by comparing quantitatively the
evolving three-color patterns in three different models, such as the
three-state voter, Potts and extended voter models. The statistical analysis of
some geometrical features allows ... | cond-mat_stat-mech |
Phase transition of $q$-state clock models on heptagonal lattices: We study the $q$-state clock models on heptagonal lattices assigned on a
negatively curved surface. We show that the system exhibits three classes of
equilibrium phases; in between ordered and disordered phases, an intermediate
phase characterized by a ... | cond-mat_stat-mech |
Phase diagram of S=1/2 XXZ chain with NNN interaction: We study the ground state properties of one-dimensional XXZ model with
next-nearest neighbor coupling alpha and anisotropy Delta. We find the direct
transition between the ferromagnetic phase and the spontaneously dimerized
phase. This is surprising, because the fe... | cond-mat_stat-mech |
Efficiency of autonomous soft nano-machines at maximum power: We consider nano-sized artificial or biological machines working in steady
state enforced by imposing non-equilibrium concentrations of solutes or by
applying external forces, torques or electric fields. For unicyclic and
strongly coupled multicyclic machine... | cond-mat_stat-mech |
Finite Size Effect on Bose-Einstein Condensation: We show various aspects of finite size effects on Bose-Einstein
condensation(BEC). In the first section we introduce very briefly the BEC of
harmonically trapped ideal Bose gas. In the second section we theoretically
argued that Bose-Einstein(B-E) statistics needs a cor... | cond-mat_stat-mech |
Phase diagram of two-lane driven diffusive systems: We consider a large class of two-lane driven diffusive systems in contact
with reservoirs at their boundaries and develop a stability analysis as a
method to derive the phase diagrams of such systems. We illustrate the method
by deriving phase diagrams for the asymmet... | cond-mat_stat-mech |
Z_2-vortex ordering of the triangular-lattice Heisenberg antiferromagnet: Ordering of the classical Heisenberg antiferromagnet on the triangular
lattice is studied by means of a mean-field calculation, a scaling argument and
a Monte Carlo simulation, with special attention to its vortex degree of
freedom. The model exh... | cond-mat_stat-mech |
Complementary aspects of non-equilibrium thermodynamics: Bio-molecules are active agents in that they consume energy to perform tasks.
The standard theoretical description, however, considers only a system-external
work agent. Fluctuation theorems, for example, do not allow work-exchange
between fluctuating molecules. ... | cond-mat_stat-mech |
Complex-valued second difference as a measure of stabilization of
complex dissipative statistical systems: Girko ensemble: A quantum statistical system with energy dissipation is studied. Its
statistics is governed by random complex-valued non-Hermitean Hamiltonians
belonging to complex Ginibre ensemble. The eigenene... | cond-mat_stat-mech |
Master equation approach to the stochastic accumulation dynamics of
bacterial cell cycle: The mechanism of bacterial cell size control has been a mystery for decades,
which involves the well-coordinated growth and division in the cell cycle. The
revolutionary modern techniques of microfluidics and the advanced live i... | cond-mat_stat-mech |
Occupation times on a comb with ramified teeth: We investigate occupation time statistics for random walks on a comb with
ramified teeth. This is achieved through the relation between the occupation
time and the first passage times. Statistics of occupation times in half space
follows Lamperti's distribution, i.e. the ... | cond-mat_stat-mech |
Firms Growth Dynamics, Competition and Power Law Scaling: We study the growth dynamics of the size of manufacturing firms considering
competition and normal distribution of competency. We start with the fact that
all components of the system struggle with each other for growth as happened in
real competitive bussiness ... | cond-mat_stat-mech |
Self-Similar Factor Approximants: The problem of reconstructing functions from their asymptotic expansions in
powers of a small variable is addressed by deriving a novel type of
approximants. The derivation is based on the self-similar approximation theory,
which presents the passage from one approximant to another as ... | cond-mat_stat-mech |
Numerical validation of the Complex Swift-Hohenberg equation for lasers: Order parameter equations, such as the complex Swift-Hohenberg (CSH)
equation, offer a simplified and universal description that hold close to an
instability threshold. The universality of the description refers to the fact
that the same kind of i... | cond-mat_stat-mech |
Improved Lower Bounds on the Ground-State Entropy of the
Antiferromagnetic Potts Model: We present generalized methods for calculating lower bounds on the
ground-state entropy per site, $S_0$, or equivalently, the ground-state
degeneracy per site, $W=e^{S_0/k_B}$, of the antiferromagnetic Potts model. We
use these me... | cond-mat_stat-mech |
Thermal buckling and symmetry breaking in thin ribbons under compression: Understanding thin sheets, ranging from the macro to the nanoscale, can allow
control of mechanical properties such as deformability. Out-of-plane buckling
due to in-plane compression can be a key feature in designing new materials.
While thin-pl... | cond-mat_stat-mech |
Accuracy and Efficiency of Simplified Tensor Network Codes: We examine in detail the accuracy, efficiency and implementation issues that
arise when a simplified code structure is employed to evaluate the partition
function of the two-dimensional square Ising model on periodic lattices though
repeated tensor contraction... | cond-mat_stat-mech |
Nontrivial critical crossover between directed percolation models:
Effect of infinitely many absorbing states: At non-equilibrium phase transitions into absorbing (trapped) states, it is
well known that the directed percolation (DP) critical scaling is shared by two
classes of models with a single (S) absorbing state... | cond-mat_stat-mech |
Feedback and Fluctuations in a Totally Asymmetric Simple Exclusion
Process with Finite Resources: We revisit a totally asymmetric simple exclusion process (TASEP) with open
boundaries and a global constraint on the total number of particles [Adams, et.
al. 2008 J. Stat. Mech. P06009]. In this model, the entry rate of... | cond-mat_stat-mech |
Spectral fingerprints of non-equilibrium dynamics: The case of a
Brownian gyrator: The same system can exhibit a completely different dynamical behavior when it
evolves in equilibrium conditions or when it is driven out-of-equilibrium by,
e.g., connecting some of its components to heat baths kept at different
tempera... | cond-mat_stat-mech |
Effects of node position on diffusion and trapping efficiency for random
walks on fractal scale-free trees: We study unbiased discrete random walks on the FSFT based on the its
self-similar structure and the relations between random walks and electrical
networks. First, we provide new methods to derive analytic solut... | cond-mat_stat-mech |
Diffusive transport on networks with stochastic resetting to multiple
nodes: We study the diffusive transport of Markovian random walks on arbitrary
networks with stochastic resetting to multiple nodes. We deduce analytical
expressions for the stationary occupation probability and for the mean and
global first passag... | cond-mat_stat-mech |
Path statistics, memory, and coarse-graining of continuous-time random
walks on networks: Continuous-time random walks (CTRWs) on discrete state spaces, ranging from
regular lattices to complex networks, are ubiquitous across physics, chemistry,
and biology. Models with coarse-grained states, for example those employ... | cond-mat_stat-mech |
Dynamic Phase Transition in the Kinetic Spin-3/2 Blume-Capel Model:
Phase Diagrams in the Temperature and Crystal-Field Interaction Plane: We analyze, within a mean-field approach, the stationary states of the
kinetic spin-3/2 Blume-Capel model by the Glauber-type stochastic dynamics and
subject to a time-dependent o... | cond-mat_stat-mech |
Universal bridge functional for infinitely diluted solutions: a case
study for Lennard-Jones spheres of different diameter: In the paper we propose an universal bridge functional for the closure of the
Ornstein-Zernike (OZ) equation for the case of infinitely diluted solutions of
Lennard-Jones shperes of different si... | cond-mat_stat-mech |
Dynamics of Ising models coupled microscopically to bath systems: Based on the Robertson theory the nonlinear dynamics of general Ising systems
coupled microscopically to bath systems is investigated leading to two
complimentary approaches. Within the master equation approach microscopically
founded transition rates ar... | cond-mat_stat-mech |
Phase Transitions in a Forest-Fire Model: We investigate a forest-fire model with the density of empty sites as control
parameter. The model exhibits three phases, separated by one first-order phase
transition and one 'mixed' phase transition which shows critical behavior on
only one side and hysteresis. The critical b... | cond-mat_stat-mech |
Renewal equations for single-particle diffusion through a semipermeable
interface: Diffusion through semipermeable interfaces has a wide range of applications,
ranging from molecular transport through biological membranes to reverse
osmosis for water purification using artificial membranes. At the
single-particle lev... | cond-mat_stat-mech |
Some universal trends of the Mie(n,m) fluid thermodynamics: By using canonical Monte Carlo simulation, the liquid-vapor phase diagram,
surface tension, interface width, and pressure for the Mie(n,m) model fluids
are calculated for six pairs of parameters $m$ and $n$. It is shown that after
certain re-scaling of fluid d... | cond-mat_stat-mech |
Innovative insights into which statements the third law of
thermodynamics includes exactly: It is found from textbooks and literature that the third law of
thermodynamics has three different statements, i.e., the Nernst theorem,
unattainability statement of absolute zero temperature, and heat capacity
statement. It i... | cond-mat_stat-mech |
Cardy states, defect lines and chiral operators of coset CFTs on the
lattice: We construct Cardy states, defect lines and chiral operators for rational
coset conformal field theories on the lattice. The bulk theory is obtained by
taking the overlap between tensor network representations of different
string-nets, whil... | cond-mat_stat-mech |
Random-cluster multi-histogram sampling for the q-state Potts model: Using the random-cluster representation of the $q$-state Potts models we
consider the pooling of data from cluster-update Monte Carlo simulations for
different thermal couplings $K$ and number of states per spin $q$. Proper
combination of histograms a... | cond-mat_stat-mech |
Properties of pattern formation and selection processes in
nonequilibrium systems with external fluctuations: We extend the phase field crystal method for nonequilibrium patterning to
stochastic systems with external source where transient dynamics is essential.
It was shown that at short time scales the system manif... | cond-mat_stat-mech |
Coherent Averaging: an Alternative to the Average Hamiltonian Theory: Line-narrowing by periodic modulation of nuclear spin interaction
Hamiltonians is the central element of various experimental techniques in NMR
spectroscopy. In this study, we present a theoretical formulation of coherent
averaging to calculate the h... | cond-mat_stat-mech |
Sluggish Kinetics in the Parking Lot Model: We investigate, both analytically and by computer simulation, the kinetics of
a microscopic model of hard rods adsorbing on a linear substrate. For a small,
but finite desorption rate, the system reaches the equilibrium state very
slowly, and the long-time kinetics display th... | cond-mat_stat-mech |
Bi-Critical Central Point Of J FN -J SN Ising Model Phase Diagram: When interfaces between ordered domains are ordered clusters, frustration
disappears. A phase with mixed ordered structures emerges but no length scale
can be associated to. We show that sum of densities of each structure plays the
role of order paramet... | cond-mat_stat-mech |
Thermal noise of a cryo-cooled silicon cantilever locally heated up to
its melting point: The Fluctuation-Dissipation Theorem (FDT) is a powerful tool to estimate the
thermal noise of physical systems in equilibrium. In general however, thermal
equilibrium is an approximation, or cannot be assumed at all. A more gene... | cond-mat_stat-mech |
Short-range Ising spin glasses: the metastate interpretation of replica
symmetry breaking: Parisi's formal replica-symmetry--breaking (RSB) scheme for mean-field spin
glasses has long been interpreted in terms of many pure states organized
ultrametrically. However, the early version of this interpretation, as applied... | cond-mat_stat-mech |
Tsallis nonextensive statistical mechanics of El Nino Southern
Oscillation Index: The shape and tails of partial distribution functions (PDF) for a
climatological signal, i.e. the El Nino SOI and the turbulent nature of the
ocean-atmosphere variability are linked through a model encompassing Tsallis
nonextensive stat... | cond-mat_stat-mech |
Exact solution for a sample space reducing stochastic process: Stochastic processes wherein the size of the state space is changing as a
function of time offer models for the emergence of scale-invariant features
observed in complex systems. I consider such a sample-space reducing (SSR)
stochastic process that results ... | cond-mat_stat-mech |
Scaling laws for single-file diffusion of adhesive particles: Single-file diffusion refers to the Brownian motion in narrow channels where
particles cannot pass each other. In such processes, the diffusion of a tagged
particle is typically normal at short times and becomes subdiffusive at long
times. For hard-sphere in... | cond-mat_stat-mech |
Sensitivity of solid phase stability to the interparticle potential
range: studies of a new Lennard-Jones like model: In a recent article, Wang et al (Phys. Chem. Chem. Phys., 22, 10624 (2020))
introduced a new class of interparticle potential for molecular simulations.
The potential is defined by a single range para... | cond-mat_stat-mech |
Introduction to Markov Chain Monte Carlo Simulations and their
Statistical Analysis: This article is a tutorial on Markov chain Monte Carlo simulations and their
statistical analysis. The theoretical concepts are illustrated through many
numerical assignments from the author's book on the subject. Computer code (in
F... | cond-mat_stat-mech |
Quantum Films Adsorbed on Graphite: Third and Fourth Helium Layers: Using a path-integral Monte Carlo method for simulating superfluid quantum
films, we investigate helium layers adsorbed on a substrate consisting of
graphite plus two solid helium layers. Our results for the promotion densities
and the dependence of th... | cond-mat_stat-mech |
Memory and irreversibility on two-dimensional overdamped Brownian
dynamics: We consider the effects of memory on the stationary behavior of a
two-dimensional Langevin dynamics in a confining potential. The system is
treated in an overdamped approximation and the degrees of freedom are under the
influence of distinct ... | cond-mat_stat-mech |
Cascading Dynamics in Modular Networks: In this paper we study a simple cascading process in a structured
heterogeneous population, namely, a network composed of two loosely coupled
communities. We demonstrate that under certain conditions the cascading
dynamics in such a network has a two--tiered structure that charac... | cond-mat_stat-mech |
Asymmetric temperature equilibration with heat flow from cold to hot in
a quantum thermodynamic system: A model computational quantum thermodynamic network is constructed with two
variable temperature baths coupled by a linker system, with an asymmetry in the
coupling of the linker to the two baths. It is found in co... | cond-mat_stat-mech |
Reaction Front in an A+B -> C Reaction-Subdiffusion Process: We study the reaction front for the process A+B -> C in which the reagents
move subdiffusively. Our theoretical description is based on a fractional
reaction-subdiffusion equation in which both the motion and the reaction terms
are affected by the subdiffusiv... | cond-mat_stat-mech |
Constructing smooth potentials of mean force, radial, distribution
functions and probability densities from sampled data: In this paper a method of obtaining smooth analytical estimates of
probability densities, radial distribution functions and potentials of mean
force from sampled data in a statistically controlled... | cond-mat_stat-mech |
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