Experimental test of a new equality: Measuring heat dissipation in an optically driven colloidal system

Shoichi Toyabe, Hong Ren Jiang, Takenobu Nakamura, Yoshihiro Murayama, Masaki Sano

    Research output: Contribution to journalArticlepeer-review

    31 Citations (Scopus)

    Abstract

    Measurement of energy dissipation in small nonequilibrium systems is generally a difficult task. Recently, Harada and Sasa [Phys. Rev. Lett. 95, 130602 (2005)] derived an equality relating the energy dissipation rate to experimentally accessible quantities in nonequilibrium steady states described by the Langevin equation. Here, we show an experimental test of this new relation in an optically driven colloidal system. We find that this equality is validated to a fairly good extent, thus the irreversible work of a small system is estimated from readily obtainable quantities.

    Original languageEnglish
    Article number011122
    JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
    Volume75
    Issue number1
    DOIs
    Publication statusPublished - 2007

    ASJC Scopus subject areas

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

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