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

37 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
Externally publishedYes

ASJC Scopus subject areas

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

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