FOKKER-PLANCK EQUATION FOR NONLINEAR STOCHASTIC DYNAMICS IN THE PRESENCE OF SPACE AND TIME-DEPENDENT FRICTION

被引：40

作者：

POLLAK, E ^{[1
]}

BEREZHKOVSKII, AM ^{[1
]}

机构：

[1] KARPOV PHYS CHEM INST, MOSCOW 103064, RUSSIA

来源：

JOURNAL OF CHEMICAL PHYSICS | 1993年 / 99卷 / 02期

关键词：

D O I：

10.1063/1.465379

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The one-dimensional stochastic equation of motion for a particle in the presence of space and time dependent friction involves multiplicative fluctuations and a nonlinear friction kernel. We show how this rather complicated equation may be significantly simplified. Introduction of an auxiliary mode leads to a set of two nonlinearly coupled equations with space and time independent damping. An exact Fokker-Planck equation emerges naturally from this formulation.

引用

页码：1344 / 1346

页数：3

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