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

TL;DR

This study experimentally investigates energy fluctuations in a colloidal particle system near stochastic resonance, confirming the steady state fluctuation theorem's validity in this context.

Contribution

It provides the first experimental validation of the steady state fluctuation theorem for work and dissipation near stochastic resonance in a colloidal system.

Findings

Steady state fluctuation theorem holds near stochastic resonance.

Injected power peaks at stochastic resonance.

Energy fluctuations are characterized near resonance.

Abstract

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.