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相关论文: Longtime Behavior for Mutually Catalytic Branching…

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The quantum dynamics of two weakly coupled nonlinear oscillators is analytically and numerically investigated in the context of nonlinear dissipation. The latter facilitates the creation and preservation of non-classical steady states.…

量子物理 · 物理学 2013-08-09 Aurora Voje , Andreas Isacsson , Alexander Croy

We study the large-scale behaviour of a family of stochastic reaction-diffusion equations driven by long-range correlated noise in a weakly nonlinear regime. Depending on the decay of correlations of the noise and the strength of the…

概率论 · 数学 2026-05-28 Simon Gabriel , Markus Tempelmayr

A system of interacting Brownian particles subject to short-range repulsive potentials is considered. A continuum description in the form of a nonlinear diffusion equation is derived systematically in the dilute limit using the method of…

统计力学 · 物理学 2017-10-12 Maria Bruna , S. Jonathan Chapman , Martin Robinson

We consider the $d$-dimensional transverse-field Ising model with power-law interactions $J/r^{d+\sigma}$ in the presence of a noisy longitudinal field with zero average. We study the longitudinal-magnetization dynamics of an initial…

强关联电子 · 物理学 2018-07-12 Jad C. Halimeh , Matthias Punk , Francesco Piazza

This paper is concerned with non-cooperative parabolic reaction--diffusion systems which share structural similarities with the scalar Fisher--KPP equation. These similarities make it possible to prove, among other results, an extinction…

偏微分方程分析 · 数学 2017-08-17 Léo Girardin

Dynamical decoupling is a technique aimed at suppressing the interaction between a quantum system and its environment by applying frequent unitary operations on the system alone. In the present paper, we analytically study the dynamical…

量子物理 · 物理学 2025-08-15 Alexander Hahn , Daniel Burgarth , Davide Lonigro

We study an inertial Brownian particle moving in a symmetric periodic substrate, driven by a zero-mean biharmonic force and correlated thermal noise. The Brownian motion is described in terms of a Generalized Langevin Equation with an…

统计力学 · 物理学 2010-10-19 Lukasz Machura , Jerzy Luczka

When two populations of "particles" move in opposite directions, like oppositely charged colloids under an electric field or intersecting flows of pedestrians, they can move collectively, forming lanes along their direction of motion. The…

统计力学 · 物理学 2017-03-16 Alexis Poncet , Olivier Bénichou , Vincent Démery , Gleb Oshanin

We develop a microscopic approach to the kinetic theory of many-particle systems with dissipative and potential interactions in presence of active fluctuations. The approach is based on a generalization of Bogolyubov--Peletminsky reduced…

统计力学 · 物理学 2016-12-13 Yu. V. Slyusarenko , O. Yu. Sliusarenko , A. V. Chechkin

Dawson and Perkins [Ann. Probab. 26 (1988) 1088--1138] constructed a stochastic model of an interacting two-type population indexed by a countable site space which locally undergoes a mutually catalytic branching mechanism. In Klenke and…

概率论 · 数学 2010-10-04 Achim Klenke , Mario Oeler

We derive an accurate molecular orbital based expression for the coherent time evolution of a two-electron wave function in a quantum dot molecule where the electrons interact with each other, with external time dependent electromagnetic…

其他凝聚态物理 · 物理学 2009-11-13 R. Nepstad , L. Sælen , J. P. Hansen

Within a Lagrangian formalism we derive the time-dependent Gutzwiller approximation for general multi-band Hubbard models. Our approach explicitly incorporates the coupling between time-dependent variational parameters and a time-dependent…

强关联电子 · 物理学 2015-06-15 J. Bünemann , M. Capone , J. Lorenzana , G. Seibold

We consider a quantum Brownian particle interacting with two harmonic baths, which is then perturbed by a cubic coupling linking the particle and the baths. This cubic coupling induces non-linear dissipation and noise terms in the influence…

统计力学 · 物理学 2019-09-04 Bidisha Chakrabarty , Soumyadeep Chaudhuri , R. Loganayagam

Non-equilibrium diffusive systems are known to exhibit long-range correlations, which decay like the inverse 1/L of the system size L in one dimension. Here, taking the example of the ABC model, we show that this size dependence becomes…

统计力学 · 物理学 2015-05-30 Antoine Gerschenfeld , Bernard Derrida

We investigate the impact of noise on a two-dimensional simple paradigmatic piecewise-smooth dynamical system. For that purpose we consider the motion of a particle subjected to dry friction and coloured noise. The finite correlation time…

统计力学 · 物理学 2017-06-14 Paul M. Geffert , Wolfram Just

We consider a model of Branching Brownian Motion in which the usual spatially-homogeneous and catalytic branching at a single point are simultaneously present. We establish the almost sure growth rates of population in certain…

概率论 · 数学 2018-03-29 Sergey Bocharov , Li Wang

We study the spatial distributions of two randomly interacting species, in the presence of an external multiplicative colored noise. The dynamics of the ecosystem is described by a coupled map lattice model. We find a nonmonotonic behavior…

统计力学 · 物理学 2007-05-23 D. Valenti , A. Fiasconaro , B. Spagnolo

We analyze the annihilation of equally-charged particles based on the Brownian motion model built by F. Dyson for $N$ particles with charge $q$ interacting via the log-Coulomb potential on the unitary circle at a reduced inverse temperature…

统计力学 · 物理学 2020-01-15 Cristhian Gonzalez-Ortiz , Gabriel Tellez

A Hamiltonian model living in a bounded phase space and with long-range interactions is studied. It is shown, by analytical computations, that there exists an energy interval in which the microcanonical entropy is a decreasing convex…

统计力学 · 物理学 2019-05-01 Fabio Miceli , Marco Baldovin , Angelo Vulpiani

Characterising the statistical properties of classical interacting particle systems is a long-standing question. For Brownian particles the microscopic density obeys a stochastic evolution equation, known as the Dean--Kawasaki equation.…

统计力学 · 物理学 2025-09-30 Aurélien Grabsch , Davide Venturelli , Olivier Bénichou