Equilibrium free-energy differences from nonequilibrium measurements: A master-equation approach

被引:1038
作者
Jarzynski, C
机构
[1] Theoretical Astrophysics T-6, Los Alamos National Laboratory, Los Alamos, 87545
来源
PHYSICAL REVIEW E | 1997年 / 56卷 / 05期
关键词
D O I
10.1103/PhysRevE.56.5018
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
In has recently been shown that the Helmholtz free-energy difference between two equilibrium configurations of a system may be obtained from an ensemble of finite-time (nonequilibrium) measurements of the work performed in switching an external parameter of the system. Here this result is established, as an identity, within the master equation formalism. Examples are discussed and numerical illustrations provided.
引用
收藏
页码:5018 / 5035
页数:18
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