BROWNIAN-MOTION IN FLUCTUATING MEDIA

被引:7
作者
GITTERMAN, M
机构
[1] Department of Physics, Bar-Ilan University
关键词
D O I
10.1103/PhysRevE.52.303
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Two-state Brownian motion is considered. One state is subjected to white noise while the other one is exposed to dichotomous noise. Such motion is described by a set of three connected Fokker-Planck equations. The switch probability density functions between the states are assumed to have a single exponential form. The equations for the partial moments of the particle velocity are solved recursively. The first moment vanishes as t --> infinity, while the second moment defines the effective diffusion coefficient. Estimates have been made of the Brownian motion near the critical point.
引用
收藏
页码:303 / 306
页数:4
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