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
收藏
页码：1344 / 1346
页数：3
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