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arXiv · 0705.0324

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

T. Speck·V. Blickle·C. Bechinger·U. Seifert
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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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T. Speck, V. Blickle, C. Bechinger, U. Seifert. 2007-05-02. Distribution of Entropy Production for a Colloidal Particle in a Nonequilibrium Steady State. https://doi.org/10.1209/0295-5075/79/30002

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