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arXiv 1102.0103cond-mat.stat-mech
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非平衡动力学、热化和熵产生

Non-equilibrium Dynamics, Thermalization and Entropy Production

Haye Hinrichsen, Christian Gogolin, Peter Janotta

摘要:

本文讨论了统计力学的基本方面,如一个经典的状态空间的自发跃迁的动机,在热化的背景下,非平衡的意义,这些概念的理由从量子力学的观点。在介绍部分之后,我们集中讨论非平衡系统中的熵产生问题。特别是,在环境中的熵产生的普遍接受的公式进行了分析,从一个关键的角度。结果表明,该公式仅在系统的时间尺度与环境自由度分离的情况下才成立。最后,我们给出了涨落定理的另一种简单证明。

英文摘要:

This paper addresses fundamental aspects of statistical mechanics such as the motivation of a classical state space with spontaneous transitions, the meaning of non-equilibrium in the context of thermalization, and the justification of these concepts from the quantum-mechanical point of view. After an introductory part we focus on the problem of entropy production in non-equilibrium systems. In particular, the generally accepted formula for entropy production in the environment is analyzed from a critical perspective. It is shown that this formula is only valid in the limit of separated time scales of the system's and the environmental degrees of freedom. Finally, we present an alternative simple proof of the fluctuation theorem.

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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