Volume 81, Number 5, March 2008
|Number of page(s)||6|
|Published online||19 February 2008|
Work and dissipation fluctuations near the stochastic resonance of a colloidal particle
Université de Lyon, Laboratoire de Physique de l'École Normale Supérieure de Lyon, CNRS UMR 5276 46 allée d'Italie, 69364 Lyon cedex 7, France
Accepted: 17 January 2008
We study experimentally the fluctuations of the injected and dissipated energy in a system of a colloidal particle trapped in a double-well potential periodically modulated by an external perturbation. The work done by the external force and the dissipated energy are measured close to the stochastic resonance where the injected power is maximum. We show that the steady-state fluctuation theorem holds in this system.
PACS: 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 82.70.Dd – Colloids
© EPLA, 2008
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