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We analyze the dynamics of particles in two dimensions with constant speed and a stochastic switching angle dynamics defined by a correlated dichotomous Markov process (telegraph noise) plus Gaussian white noise. We study various cases of…

统计力学 · 物理学 2012-05-16 Christian Weber , Igor M. Sokolov , Lutz Schimansky-Geier

We provide a simple proof of the Lieb-Robinson bound and use it to prove the existence of the dynamics for interactions with polynomial decay. We then use our results to demonstrate that there is an upper bound on the rate at which…

数学物理 · 物理学 2007-05-23 Bruno Nachtergaele , Yoshiko Ogata , Robert Sims

We extend the Keldysh technique to enable the computation of out-of-time order correlators. We show that the behavior of these correlators is described by equations that display initially an exponential instability which is followed by a…

统计力学 · 物理学 2016-12-21 Igor L. Aleiner , Lara Faoro , Lev B. Ioffe

We study systems of interacting Brownian particles in one dimension constructed as the diffusion scaling limits of Fisher's vicious walk models. We define two types of nonintersecting Brownian motions, in which we impose no condition (resp.…

统计力学 · 物理学 2007-05-23 M. Katori , H. Tanemura

Temporal coherence-persistent alignment across time-can arise between agents with fundamentally distinct dynamics, a behavior that classical diffusion models (e.g., Brownian motion, fractional Brownian motion, generalized Langevin equation)…

统计力学 · 物理学 2025-05-19 Aranyak Sarkar

We study reversible deterministic dynamics of classical charged particles on a lattice with hard-core interaction. It is rigorously shown that the system exhibits three types of transport phenomena, ranging from ballistic, through diffusive…

统计力学 · 物理学 2017-09-19 Marko Medenjak , Katja Klobas , Tomaz Prosen

We present a comparison between the bosonization results for quantum quenches and exact diagonalizations in microscopic models of interacting spinless fermions in a one-dimensional lattice. We show that important features are missed by the…

强关联电子 · 物理学 2013-02-14 Emanuele Coira , Federico Becca , Alberto Parola

We investigate the dynamics of continuous-time two-particle quantum walks on a one-dimensional noisy lattice. Depending on the initial condition, we show how the interplay between particle indistinguishability and interaction determines…

This paper aims at understanding the longtime behaviors of a reducible cooperative system with nonlocal diffusions and different free boundaries, describing the interactions of two mutually beneficial species. Compared with the irreducible…

偏微分方程分析 · 数学 2025-01-03 Lei Li , Mingxin Wang

In this work, we study the dynamics of a single active Brownian particle, as well as the collective behavior of interacting active Brownian particles, in a fluctuating heterogeneous environment. We employ a variant of the diffusing…

软凝聚态物质 · 物理学 2022-01-05 S. M. J. Khadem , N. H. Siboni , S. H. L. Klapp

The discovery of the intriguing phenomenon that certain kinds of quantum correlations remain impervious to noise up to a specific point in time and then suddenly decay, has generated immense recent interest. We exploit dynamical decoupling…

量子物理 · 物理学 2018-02-14 Harpreet Singh , Arvind , Kavita Dorai

Linear diffusions are used to model a large number of stochastic processes in physics, including small mechanical and electrical systems perturbed by thermal noise, as well as Brownian particles controlled by electrical and optical forces.…

统计力学 · 物理学 2023-05-10 Johan du Buisson , Hugo Touchette

Our object is to formulate and analyze a physically plausible and mathematically sound model to better understand the phenomenon of clumping in colloid dispersions. Our model is stochastic but rigorously derived from a deterministic setup…

材料科学 · 物理学 2009-09-29 Peter. Kotelenez , Marshall J. Leitman , J. Adin Mann

We discuss correlated lattice models with a time-dependent potential across a barrier and show how to implement a Josephson-junction-like behavior. The pairing occurs by a correlation effect enhanced by the symmetry of the system. In order…

超导电性 · 物理学 2009-11-11 Stefano Bellucci , Michele Cini , Pasquale Onorato , Enrico Perfetto

We are interested in a kinetic equation intended to describe the interactions of particles with their environment. We focus on the long time behaviour. We prove that the time derivative of the spatial density goes to 0 and exhibit the omega…

偏微分方程分析 · 数学 2019-04-10 Arthur Vavasseur

We investigate a diffusive motion of a system of interacting Brownian particles in quasi-one-dimensional micropores. In particular, we consider a semi-infinite 1D geometry with a partially absorbing boundary and the hard-core inter-particle…

统计力学 · 物理学 2012-03-06 Artem Ryabov , Petr Chvosta

We consider a critical branching particle system in $\R^d$, composed of individuals of a finite number of types $i\in\{1,...,K\}$. Each individual of type $i$ moves independently according to a symmetric $\alpha_i$-stable motion. We assume…

概率论 · 数学 2011-07-04 Peter Kevei , Jose Alfredo Lopez Mimbela

We establish finite time extinction with probability one for weak solutions of the Cauchy-Dirichlet problem for the 1D stochastic porous medium equation with Stratonovich transport noise and compactly supported smooth initial datum.…

概率论 · 数学 2020-01-30 Sebastian Hensel

In this paper we consider a one-dimensional nonlocal interaction equation with quadratic porous-medium type diffusion in which the interaction kernels are attractive, nonnegative, and integrable on the real line. Earlier results in the…

偏微分方程分析 · 数学 2018-06-08 Marco Di Francesco , Yahya Jaafra

We consider a two dimensional electroconvection model which consists of a nonlinear and nonlocal system coupling the evolutions of a charge distribution and a fluid. We show that the solutions decay in time in $L^2(\Rr^2)$ at the same sharp…

偏微分方程分析 · 数学 2022-07-15 Elie Abdo , Mihaela Ignatova