Test of the fluctuation theorem for stochastic entropy production in a nonequilibrium steady state

被引：12

作者：

Gomez-Marin, A. ^{[1
]}

Pagonabarraga, I. ^{[1
]}

机构：

[1] Univ Barcelona, Fac Fis, E-08028 Barcelona, Spain

来源：

PHYSICAL REVIEW E | 2006年 / 74卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.74.061113

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：

We derive a simple closed analytical expression for the total entropy production along a single stochastic trajectory of a Brownian particle diffusing on a periodic potential under an external constant force. By numerical simulations we compute the probability distribution functions of the entropy and satisfactorily test many of the predictions based on Seifert's integral fluctuation theorem. The results presented for this simple model clearly illustrate the practical features and implications derived from such a result of nonequilibrium statistical mechanics.

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页数：8

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