Distribution of Entropy Production for a Colloidal Particle in a Nonequilibrium Steady State

Abstract

For a colloidal particle driven by a constant force across a periodic potential, we investigate the distribution of entropy production both experimentally and theoretically. For short trajectories, the fluctuation theorem holds experimentally. The mean entropy production rate shows two regimes as a function of the applied force. Theoretically, both mean and variance of the pronounced non-Gaussian distribution can be obtained from a differential equation in good agreement with the experimental data.

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• Thermodynamic constraints on the nonequilibrium response of one-dimensional diffusions
• Convergence of the Integral Fluctuation Theorem estimator for nonequilibrium Markov systems
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• Foundations of Stochastic Thermodynamics
• Coexistence of distinct nonuniform nonequilibrium steady states in Ehrenfest multiurn model on a ring
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