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We present a simple thermodynamically consistent method for solving time-dependent Fokker--Planck equations (FPE) for over-damped stochastic processes, also known as Smoluchowski equations. It yields both transition and steady-state…

统计力学 · 物理学 2019-03-12 Viktor Holubec , Klaus Kroy , Stefano Steffenoni

Using a shortcut way we have derived the Fokker-Planck equation for the Langevin dynamics with a generalized frictional memory kernel and time-dependent force field. Then we have shown that this method is applicable for the non-Markovian…

统计力学 · 物理学 2022-12-01 Joydip Das , Mousumi Biswas , Bidhan Chandra Bag

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

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

We obtain a non-Markovian quantum master equation directly from the quantization of a non-Markovian Fokker-Planck equation describing the Brownian motion of a particle immersed in a generic environment (e.g. a non-thermal fluid). As far as…

统计力学 · 物理学 2011-03-25 A. O. Bolivar

We provide an analytical solution for the time-dependent Fokker-Planck equation for a two-dimensional active Brownian particle trapped in an isotropic harmonic potential. Using the passive Brownian particle as basis states we show that the…

软凝聚态物质 · 物理学 2022-10-11 Michele Caraglio , Thomas Franosch

We investigate a subdiffusive, fractional Fokker-Planck dynamics occurring in time-varying potential landscapes and thereby disclose the failure of the fractional Fokker-Planck equation (FFPE) in its commonly used form when generalized in…

统计力学 · 物理学 2007-10-17 E. Heinsalu , M. Patriarca , I. Goychuk , P. Hänggi

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

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

The relaxation to equilibrium in many systems which show strange kinetics is described by fractional Fokker-Planck equations (FFPEs). These can be considered as phenomenological equations of linear nonequilibrium theory. We show that the…

统计力学 · 物理学 2009-11-07 I. M. Sokolov

Using the scheme of mesoscopic nonequilibrium thermodynamics, we construct the one- and two- particle Fokker-Planck equations for a system of interacting Brownian particles. By means of these equations we derive the corresponding balance…

软凝聚态物质 · 物理学 2009-11-07 M. Mayorga , L. Romero-Salazar , J. M. Rubi

This paper presents an overview of the Fokker-Planck formalism for non-biological magnetic resonance simulations, describes its existing applications and proposes some novel ones. The most attractive feature of Fokker-Planck theory compared…

量子物理 · 物理学 2016-07-27 Ilya Kuprov

We present a model-based output-only method for identifying from time series the parameters governing the dynamics of stochastically forced oscillators. In this context, suitable models of the oscillator's damping and stiffness properties…

流体动力学 · 物理学 2019-10-04 Edouard Boujo , Nicolas Noiray

We consider the mean field Fokker-Planck equation subject to nonlinear no-flux boundary conditions, which necessarily arise when subjecting a system of Brownian particles interacting via a pair potential in a bounded domain. With the…

数值分析 · 数学 2022-03-30 R. D. Mills-Williams , B. D. Goddard , G. A. Pavliotis

An efficient method is presented as a means of an approximate, analytic time-dependent solution of the Fokker-Planck equation (FPE) for the Langevin model subjected to additive and multiplicative noise. We have assumed that the dynamical…

统计力学 · 物理学 2008-10-19 Hideo Hasegawa

This paper investigates the transient probabilistic responses of nonlinear single-degree-of-freedom oscillators subjected to external fractional Gaussian noise (FGN) excitation. Owing to the inherent long-range correlations and memory…

概率论 · 数学 2026-05-28 Lifang Feng , Bin Pei , Yong Xu

An effective description is presented for a Brownian particle in a magnetized plasma. In order to systematically capture various corrections to linear Langevin equation, we construct effective action for the Brownian particle, to quartic…

高能物理 - 理论 · 物理学 2022-10-06 Yanyan Bu , Biye Zhang , Jingbo Zhang

We consider passive Brownian particles trapped in an "imperfect" harmonic trap. The trap is imperfect because it is randomly turned off and on, and as a result, particles fail to equilibrate. Another way to think about this is to say that a…

统计力学 · 物理学 2024-10-10 Derek Frydel

We derive an exact non-Markovian master equation that generalizes the previous work [Hu, Paz and Zhang, Phys. Rev. D {\bf 45}, 2843 (1992)] to damped harmonic oscillators with time-varying parameters. This is achieved by exploiting the…

量子物理 · 物理学 2015-05-18 Kwong Wa Chang , C. K. Law

We analyze the diffusion of a Brownian particle in a fluid under stationary flow. By using the scheme of non-equilibrium thermodynamics in phase space, we obtain the Fokker-Planck equation which is compared with others derived from kinetic…

统计力学 · 物理学 2016-08-16 I. Santamaría-Holek , D. Reguera , J. M. Rubí
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