Work and dissipation fluctuations near the stochastic resonance of a colloidal particle

Pierre Jop (1) , Sergio Ciliberto (1) , Artyom Petrosyan (1)

1 Phys-ENS - Laboratoire de Physique de l'ENS Lyon

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.

Keywords: Stochastic resonance; Fluctuation theorem; Brownian motion

Domains: Physics [physics]; Condensed Matter [cond-mat]; Soft Condensed Matter [cond-mat.soft]; Physics [physics]; Condensed Matter [cond-mat]; Statistical Mechanics [cond-mat.stat-mech]

Pierre Jop, Sergio Ciliberto, Artyom Petrosyan. Work and dissipation fluctuations near the stochastic resonance of a colloidal particle. EPL - Europhysics Letters, 2008, 81 (50005), pp.6. ⟨ensl-00189499v2⟩