Work and dissipation fluctuations near the stochastic resonance of a colloidal particleP. Jop, A. Petrosyan and S. Ciliberto
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
received 21 November 2007; accepted in final form 17 January 2008; published March 2008
published online 19 February 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.
05.40.-a - Fluctuation phenomena, random processes, noise, and Brownian motion.
05.70.Ln - Nonequilibrium and irreversible thermodynamics.
82.70.Dd - Colloids.
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