EQUILIBRIUM FREE-ENERGY DIFFERENCES FROM NONEQUILIBRIUM MEASUREMENTS - A MASTER-EQUATION APPROACH

Authors
Citation
C. Jarzynski, EQUILIBRIUM FREE-ENERGY DIFFERENCES FROM NONEQUILIBRIUM MEASUREMENTS - A MASTER-EQUATION APPROACH, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 56(5), 1997, pp. 5018-5035
Citations number
29
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
ISSN journal
1063651X
Volume
56
Issue
5
Year of publication
1997
Part
A
Pages
5018 - 5035
Database
ISI
SICI code
1063-651X(1997)56:5<5018:EFDFNM>2.0.ZU;2-9
Abstract
In has recently been shown that the Helmholtz free-energy difference b etween 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 form alism. Examples are discussed and numerical illustrations provided.