Minimal model for Brownian vortexes

Bo Sun, David G. Grier, Alexander Y. Grosberg

    Research output: Contribution to journalArticle

    Abstract

    A Brownian vortex is a noise-driven machine that uses thermal fluctuations to extract a steady-state flow of work from a static force field. Its operation is characterized by loops in a probability current whose topology and direction can change with changes in temperature. We present discrete three- and four-state minimal models for Brownian vortexes that can be solved exactly with a master-equation formalism. These models elucidate conditions required for flux reversal in Brownian vortexes and provide insights into their thermodynamic efficiency through the rate of entropy production.

    Original languageEnglish (US)
    Article number021123
    JournalPhysical Review E
    Volume82
    Issue number2
    DOIs
    StatePublished - Aug 25 2010

    Fingerprint

    Entropy Production
    Minimal Model
    Force Field
    Master Equation
    Reversal
    Vortex
    Thermodynamics
    Fluctuations
    Topology
    equilibrium flow
    thermodynamic efficiency
    field theory (physics)
    topology
    vortices
    entropy
    formalism
    Model
    temperature

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Statistical and Nonlinear Physics
    • Statistics and Probability

    Cite this

    Sun, B., Grier, D. G., & Grosberg, A. Y. (2010). Minimal model for Brownian vortexes. Physical Review E, 82(2), [021123]. https://doi.org/10.1103/PhysRevE.82.021123

    Minimal model for Brownian vortexes. / Sun, Bo; Grier, David G.; Grosberg, Alexander Y.

    In: Physical Review E, Vol. 82, No. 2, 021123, 25.08.2010.

    Research output: Contribution to journalArticle

    Sun, B, Grier, DG & Grosberg, AY 2010, 'Minimal model for Brownian vortexes', Physical Review E, vol. 82, no. 2, 021123. https://doi.org/10.1103/PhysRevE.82.021123
    Sun, Bo ; Grier, David G. ; Grosberg, Alexander Y. / Minimal model for Brownian vortexes. In: Physical Review E. 2010 ; Vol. 82, No. 2.
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