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相关论文: Thermodynamics and Fractional Fokker-Planck Equati…

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We introduce a fractional Fokker-Planck equation (FFPE) for Levy flights in the presence of an external field. The equation is derived within the framework of the subordination of random processes which leads to Levy flights. It is shown…

统计力学 · 物理学 2009-10-31 I. M. Sokolov , J. Klafter , A. Blumen

The Fokker-Planck equations (FPEs) for stochastic systems driven by additive symmetric $\alpha$-stable noises may not adequately describe the time evolution for the probability densities of solution paths in some practical applications,…

动力系统 · 数学 2020-03-11 Yanjie Zhang , Xiao Wang , Qiao Huang , Jinqiao Duan , Tingting Li

We propose fractional Fokker-Planck equation for the kinetic description of relaxation and superdiffusion processes in constant magnetic and random electric fields. We assume that the random electric field acting on a test charged particle…

等离子体物理 · 物理学 2009-11-07 A. Chechkin , V. Gonchar , M. Szydlowski

The classical Fokker-Planck equation (FPE) is a key tool in physics for describing systems influenced by drag forces and Gaussian noise, with applications spanning multiple fields. We consider the fractional Fokker-Planck equation (FFPE),…

数值分析 · 数学 2026-04-30 Qihao Ye , Xiaochuan Tian , Dong Wang

We study non-normalizable quasi-equilibrium states (NNQE) arising from anomalous diffusion. Initially, particles in contact with a thermal bath are released from an asymptotically flat potential well, with dynamics that is described by…

The reformulation of nonequilibirum thermodynamics, to include the treatment of thermodynamic fluctuations, is applied to the hydrodynamic fluctuations of a simple fluid. It is shown that the nonequilibrium thermodynamic scheme leads to the…

统计力学 · 物理学 2007-05-23 J. M. Rubi , P. Mazur

We study the relaxation to equilibrium for a class linear one-dimensional Fokker-Planck equations characterized by a particular subcritical confinement potential. An interesting feature of this class of Fokker-Planck equations is that, for…

偏微分方程分析 · 数学 2021-03-23 G. Toscani , M. Zanella

We propose a Fokker-Planck equation (FPE) theory to describe stochastic fluctuation and relaxation processes of lattice vibration at a wide range of conditions, including those beyond the phonon gas (PG) limit. Using the time-dependent,…

统计力学 · 物理学 2019-01-30 Yi Zeng , Jianjun Dong

We present a Fokker-Planck description of supercooled colloidal systems exhibiting slow relaxation dynamics. By assuming the existence of a local quasi-equilibrium state during the relaxation of the system, we derive a non-Markovian…

凝聚态物理 · 物理学 2015-06-24 J. M. Rubi , I. Santamaria-Holek , A. Perez-Madrid

This paper presents a partial state of the art about the topic of representation of generalized Fokker-Planck Partial Differential Equations (PDEs) by solutions of McKean Feynman-Kac Equations (MFKEs) that generalize the notion of McKean…

概率论 · 数学 2019-12-09 Lucas Izydorczyk , Nadia Oudjane , Francesco Russo

Recently, the fractional Fokker-Planck equations (FFPEs) with multiple internal states are built for the particles undergoing anomalous diffusion with different waiting time distributions for different internal states, which describe the…

数值分析 · 数学 2020-05-06 Daxin Nie , Jing Sun , Weihua Deng

Non-Gaussian L\'evy noises are present in many models for understanding underlining principles of physics, finance, biology and more. In this work, we consider the Fokker-Planck equation(FPE) due to one-dimensional asymmetric L\'evy motion,…

动力系统 · 数学 2018-03-05 Xiao Wang , Wenpeng Shang , Xiaofan Li , Jinqiao Duan , Yanghong Huang

Dynamics of complex systems is often hierarchically organized on different time scales. To understand the physics of such hierarchy, here Brownian motion of a particle moving through a fluctuating medium with slowly varying temperature is…

统计力学 · 物理学 2014-02-14 Sumiyoshi Abe

The Fokker-Planck equation has been very useful for studying dynamic behavior of stochastic differential equations driven by Gaussian noises. However, there are both theoretical and empirical reasons to consider similar equations driven by…

chao-dyn · 物理学 2007-05-23 D. Schertzer , M. Larchevêque , J. Duan , V. V. Yanovsky , S. Lovejoy

We compare two approaches to nonequilibrium thermodynamics, the two-generator bracket formulation of time-evolution equations for averages and the macroscopic fluctuation theory, for an isothermal driven diffusive system under steady state…

统计力学 · 物理学 2010-11-10 Hans Christian Ottinger

Usually Fokker-Planck type partial differential equations (PDEs) are well-posed if the initial condition is specified. In this paper, alternatively, we consider the inverse problem which consists in prescribing final data: in particular we…

偏微分方程分析 · 数学 2021-09-28 Lucas Izydorczyk , Nadia Oudjane , Francesco Russo , Gianmario Tessitore

The Fokker-Planck Equation (FPE) is a fundamental tool for the investigation of kinematic aspects of a wide range of systems. For systems governed by the non-additive entropy $S_q$, the Plastino-Plastino Equation (PPE) is the correct…

高能物理 - 唯象学 · 物理学 2023-09-13 Eugenio Megias , Airton Deppman , Roman Pasechnik , Constantino Tsallis

The fractional Fokker-Planck equation (FFPE) [R. Metzler, E. Barkai, J. Klafter, Phys. Rev. Lett., 82, 3563 (1999)] describes an anomalous sub diffusive behavior of a particle in an external force field. In this paper we present the…

统计力学 · 物理学 2007-05-23 E. Barkai

The existence and uniqueness of measure-valued solutions to stochastic nonlinear, non-local Fokker-Planck equations is proven. This type of stochastic PDE is shown to arise in the mean field limit of weakly interacting diffusions with…

概率论 · 数学 2021-03-30 Michele Coghi , Benjamin Gess

In this paper we suggest a consistent approach to derivation of generalized Fokker-Planck equation (GFPE) for Gaussian non-Markovian processes with stationary increments. This approach allows us to construct the probability density function…

统计力学 · 物理学 2011-07-06 O. Yu. Sliusarenko
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