Langevin equation for systems with a preferred spatial direction

doi:http://dx.doi.org/10.1103/PhysRevE.94.032127

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	Langevin equation for systems with a preferred spatial direction
	Belousov, R; Cohen, EGD; Rondoni, L; Belousov, R (reprint author), Rockefeller Univ, New York, NY 10065 USA.
刊名	PHYSICAL REVIEW E
	2016
卷号	94 期号:3 页码:32127
DOI	http://dx.doi.org/10.1103/PhysRevE.94.032127
英文摘要	In this paper, we generalize the theory of Brownian motion and the Onsager-Machlup theory of fluctuations for spatially symmetric systems to equilibrium and nonequilibrium steady-state systems with a preferred spatial direction, due to an external force. To do this, we extend the Langevin equation to include a bias, which is introduced by an external force and alters the Gaussian structure of the system's fluctuations. In addition, by solving this extended equation, we provide a physical interpretation for the statistical properties of the fluctuations in these systems. Connections of the extended Langevin equation with the theory of active Brownian motion are discussed as well.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21527]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Belousov, R (reprint author), Rockefeller Univ, New York, NY 10065 USA.
推荐引用方式 GB/T 7714	Belousov, R,Cohen, EGD,Rondoni, L,et al. Langevin equation for systems with a preferred spatial direction[J]. PHYSICAL REVIEW E,2016,94(3):32127.
APA	Belousov, R,Cohen, EGD,Rondoni, L,&Belousov, R .(2016).Langevin equation for systems with a preferred spatial direction.PHYSICAL REVIEW E,94(3),32127.
MLA	Belousov, R,et al."Langevin equation for systems with a preferred spatial direction".PHYSICAL REVIEW E 94.3(2016):32127.