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  • Nonequilibrium free-energy relations for thermal changes

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    Author(s)
    Williams, Stephen R.
    Bernhardt, Debra
    Evans, Denis J.
    Griffith University Author(s)
    Bernhardt, Debra J.
    Year published
    2008
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    Abstract
    The Jarzynski equality and the Crooks fluctuation theorem enable the calculation of the change in a system's free energy from nonequilibrium path integrals. These relations consider processes where the system is driven out of equilibrium by a mechanical external agent while remaining in contact with a thermal reservoir at a fixed temperature. We generalize these relations to describe processes driven by any type of external agent, be it thermal or mechanical. Attention is given to the case of a system, initially in equilibrium, that is driven through a temperature change by a heat reservoir. The results are cast in a form ...
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    The Jarzynski equality and the Crooks fluctuation theorem enable the calculation of the change in a system's free energy from nonequilibrium path integrals. These relations consider processes where the system is driven out of equilibrium by a mechanical external agent while remaining in contact with a thermal reservoir at a fixed temperature. We generalize these relations to describe processes driven by any type of external agent, be it thermal or mechanical. Attention is given to the case of a system, initially in equilibrium, that is driven through a temperature change by a heat reservoir. The results are cast in a form applicable to experiments.
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    Journal Title
    Physical Review Letters
    Volume
    100
    Publisher URI
    http://prl.aps.org/
    DOI
    https://doi.org/10.1103/PhysRevLett.100.250601
    Copyright Statement
    © 2008 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal link for access to the definitive, published version.
    Subject
    Mathematical sciences
    Physical sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/21773
    Collection
    • Journal articles

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