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  • Reversibility in nonequilibrium trajectories of an optically trapped particle

    Author(s)
    Reid, J.
    Carberry, D.
    Wang, G.
    Sevick, E.
    J. Evans, Denis
    Griffith University Author(s)
    Reid, James C.
    Year published
    2004
    Metadata
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    Abstract
    The fluctuation theorem (FT) describes how a system's thermodynamic irreversibility develops in time from a completely thermodynamically reversible system at short observation times, to a thermodynamically irreversible one at infinitely long times. In this paper, we present a general definition of the dissipation function Vt, the quantitative argument in the fluctuation theorem (FT), that is a measure of a system's irreversibility. Originally cast for deterministic systems, we demonstrate, through the example of two recent experiments, that the dissipation function can be defined for stochastic systems. While the ensemble ...
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    The fluctuation theorem (FT) describes how a system's thermodynamic irreversibility develops in time from a completely thermodynamically reversible system at short observation times, to a thermodynamically irreversible one at infinitely long times. In this paper, we present a general definition of the dissipation function Vt, the quantitative argument in the fluctuation theorem (FT), that is a measure of a system's irreversibility. Originally cast for deterministic systems, we demonstrate, through the example of two recent experiments, that the dissipation function can be defined for stochastic systems. While the ensemble average of Vt is positive definite irrespective of the system for which it is constructed, different expressions for Vt can arise in stochastic and deterministic systems. Moreover, within the stochastic framework, Vt is not unique. Nevertheless, each of these expressions for Vt satisfies the FT.
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    Journal Title
    Physical Review E
    Volume
    70
    Issue
    1
    DOI
    https://doi.org/10.1103/PhysRevE.70.016111
    Subject
    Mathematical Sciences
    Physical Sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/27325
    Collection
    • Journal articles

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