中文
相关论文

相关论文: Nonlinear inhomogeneous Fokker-Planck equations: e…

200 篇论文

We present a new approach to analyze homogeneous nucleation based on non-equilibrium thermodynamics. The starting point is the formulation of a Gibbs equation for the variations of the entropy of the system, whose state is characterized by…

凝聚态物理 · 物理学 2007-05-23 D. Reguera Lopez , J. M. Rubi , A. Perez-Madrid

We study the asymptotic behavior of Fokker-Planck equations with spatially inhomogeneous nonlinear diffusion, based on the energy dissipation law. First, we consider the Fokker-Planck equation with porous-medium-type nonlinear diffusion…

偏微分方程分析 · 数学 2025-12-16 Kouta Araki , Masashi Mizuno

Inspired by the modeling of grain growth in polycrystalline materials, we consider a nonlinear Fokker-Plank model, with inhomogeneous diffusion and with variable mobility parameters. We develop large time asymptotic analysis of such…

偏微分方程分析 · 数学 2022-06-24 Yekaterina Epshteyn , Chang Liu , Chun Liu , Masashi Mizuno

We interpret a class of nonlinear Fokker-Planck equations with reaction as gradient flows over the space of Radon measures equipped with the recently introduced Hellinger-Kantorovich distance. The driving entropy of the gradient flow is not…

泛函分析 · 数学 2019-08-13 Stanislav Kondratyev , Dmitry Vorotnikov

We consider three classes of linear non-symmetric Fokker-Planck equations having a unique steady state and establish exponential convergence of solutions towards the steady state with explicit (estimates of) decay rates. First,…

偏微分方程分析 · 数学 2023-08-21 Franz Achleitner , Anton Arnold , Dominik Stürzer

An integral relation is derived from the Fokker-Planck equation which connects the steady-state probability currents with the dynamics of relaxation on short timescales in the limit of small perturbation fields. As a consequence of this…

统计力学 · 物理学 2024-03-26 Andrea Auconi

A recently introduced nonlinear Fokker-Planck equation, derived directly from a master equation, comes out as a very general tool to describe phenomenologically systems presenting complex behavior, like anomalous diffusion, in the presence…

统计力学 · 物理学 2009-11-13 Veit Schwammle , Evaldo M. F. Curado , Fernando D. Nobre

The dynamics of a degree of freedom associated to an axial vector in contact with a heat bath is decribed by means of a probability distribution function obeying a Fokker-Planck equation. The equation is derived by using mesoscopic…

软凝聚态物质 · 物理学 2010-01-27 J. G. Méndez-Bermúdez , I. Santamaría-Holek

We introduce a new class of Fokker-Planck equations associated with an effective generalized thermodynamical framework. These equations describe a gas of Langevin particles in interaction. The free energy can take various forms which can…

统计力学 · 物理学 2009-11-11 Pierre-Henri Chavanis

We develop the stochastic approach to thermodynamics based on the stochastic dynamics, which can be discrete (master equation) continuous (Fokker-Planck equation), and on two assumptions concerning entropy. The first is the definition of…

统计力学 · 物理学 2015-06-11 Tânia Tomé , Mário J. de Oliveira

We introduce a class of new one-dimensional linear Fokker--Planck type equations describing the evolution in time of the wealth in a multi-agent society. The equations are obtained, via a standard limiting procedure, by introducing an…

偏微分方程分析 · 数学 2019-06-04 Giulia Furioli , Ada Pulvirenti , Elide Terraneo , Giuseppe Toscani

In this work, we study the formal connections between the non-linear Fokker-Planck Equation associated with the non-additive entropy and the Boltzmann Equation with the non-additive correlation functional. The collisional term following the…

统计力学 · 物理学 2023-02-23 Airton Deppman , Alireza K. Golmankhaneh , Eugenio Megias , Roman Pasechnik

This letter is devoted to results on intermediate asymptotics for the heat equation. We study the convergence towards a stationary solution in self-similar variables. By assuming the equality of some moments of the initial data and of the…

偏微分方程分析 · 数学 2009-08-18 Jean-Philippe Bartier , Adrien Blanchet , Jean Dolbeault , Miguel Escobedo

Using the stochastic thermodynamics, we determine the entropy production and the dynamic heat capacity of systems subject to a sinusoidally time dependent temperature, in which case the systems are permanently out of thermodynamic…

统计力学 · 物理学 2019-06-26 Carlos E. Fiore , Mário J. de Oliveira

A class of linear kinetic Fokker-Planck equations with a non-trivial diffusion matrix and with periodic boundary conditions in the spatial variable is considered. After formulating the problem in a geometric setting, the question of the…

数学物理 · 物理学 2012-10-03 Simone Calogero

Many efforts have been made to explore systems that show significant deviations from predictions related to the standard statistical mechanics. The present work introduces a unified formalism that connects divergences, generalized free…

统计力学 · 物理学 2025-10-28 Anna L. F. Lucchi , Jean H. Y. Passos , Max Jauregui , Renio S. Mendes

We investigate the existence of steady states and exponential decay for hypocoercive Fokker--Planck equations on the whole space with drift terms that are linear in the position variable. For this class of equations, we first establish that…

偏微分方程分析 · 数学 2014-10-27 Anton Arnold , Jan Erb

Nonlinear Fokker-Planck equations endowed with curl drift forces are investigated. The conditions under which these evolution equations admit stationary solutions, which are $q$-exponentials of an appropriate potential function, are…

统计力学 · 物理学 2016-12-07 R. S. Wedemann , A. R. Plastino , C. Tsallis

A general type of nonlinear Fokker-Planck equation is derived directly from a master equation, by introducing generalized transition rates. The H-theorem is demonstrated for systems that follow those classes of nonlinear Fokker-Planck…

统计力学 · 物理学 2009-11-13 Veit Schwammle , Fernando D. Nobre , Evaldo M. F. Curado

We show that solutions of nonlinear nonlocal Fokker--Planck equations in a bounded domain with no-flux boundary conditions can be approximated by Cauchy problems with increasingly strong confining potentials defined in the whole space. Two…

偏微分方程分析 · 数学 2019-03-12 Luca Alasio , Maria Bruna , José Antonio Carrillo
‹ 上一页 1 2 3 10 下一页 ›