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A nonequilibrium equality for free energy differences

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      Abstract

      An expression is derived for the classical 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 equilibrium identities emerge as limiting cases of this result.

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      Goodness of Ergodic Adiabatic Invariants

       Edward Ott (1979)
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        Author and article information

        Journal
        29 October 1996
        cond-mat/9610209
        10.1103/PhysRevLett.78.2690
        Custom metadata
        Phys Rev Lett 78, 2690 (1997)
        Latex, 11 pages, no figures
        cond-mat.stat-mech physics.bio-ph physics.chem-ph physics.comp-ph

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