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  • Temporal asymmetry of fluctuations in nonequilibrium steady states: Links with correlation functions and nonlinear response

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    Author(s)
    Paneni, Carlo
    Bernhardt, Debra
    Rondoni, Lamberto
    Griffith University Author(s)
    Bernhardt, Debra J.
    Paneni, Carlo
    Year published
    2008
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    Abstract
    The presence of temporal asymmetries in fluctuation paths of nonequilibrium systems has recently been confirmed numerically in nonequilibrium molecular dynamics simulations of particular deterministic systems. Here we show that this is a common feature of homogeneously driven and thermostatted, reversible, deterministic, chaotic, nonequilibrium systems of interacting particles. This is done by expressing fluctuation paths as correlation functions. The theoretical arguments look rather general, and we expect them to easily extend to other forms of driving and thermostats. The emergence of asymmetry is also justified using the ...
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    The presence of temporal asymmetries in fluctuation paths of nonequilibrium systems has recently been confirmed numerically in nonequilibrium molecular dynamics simulations of particular deterministic systems. Here we show that this is a common feature of homogeneously driven and thermostatted, reversible, deterministic, chaotic, nonequilibrium systems of interacting particles. This is done by expressing fluctuation paths as correlation functions. The theoretical arguments look rather general, and we expect them to easily extend to other forms of driving and thermostats. The emergence of asymmetry is also justified using the transient time correlation function expression of nonlinear response theory. Numerical simulations are used to verify our arguments.
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    Journal Title
    The Journal of Chemical Physics
    Volume
    128
    Publisher URI
    https://aip.scitation.org/doi/full/10.1063/1.2894471
    DOI
    https://doi.org/10.1063/1.2894471
    Copyright Statement
    © 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article may be found at http://dx.doi.org/10.1063/1.2894471
    Subject
    Physical Sciences
    Chemical Sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/21321
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    • Journal articles

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