Phys. Rev. Lett. 78, 2690–2693 (1997)Nonequilibrium Equality for Free Energy Differences
An expression is derived for the equilibrium free energy difference between two configurations of a system, in terms of an ensemble of finite-time measurements of the work performed in parametrically switching from one configuration to the other. Two well-known identities emerge as limiting cases of this result. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.78.2690
DOI:
10.1103/PhysRevLett.78.2690
PACS:
05.70.Ln, 87.10.+e, 82.20.Wt
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