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arXiv 0705.0324cond-mat.stat-mech
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非平衡稳态中胶体粒子的熵产生分布

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

T. Speck, V. Blickle, C. Bechinger, U. Seifert

摘要:

对于在周期势作用下受到恒定力驱动的胶体粒子,我们从实验和理论两方面研究了熵产生的分布。对于短轨道,涨落定理在实验上成立。平均熵产生率显示两个政权作为所施加的力的函数。从理论上讲,显著的非高斯分布的均值和方差可以从微分方程中获得,与实验数据吻合得很好。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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