Fluctuation Theorem and an Extended Fokker-Planck Equation(General)
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概要
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Fluctuation in entropy production in stochastic dynamics is considered based on a Langevin equation. Starting from the path integral expression for the distribution function of the entropy production as given by Crooks, we show that it can also be expressed with the solution of an extended Fokker-Planck equation for the distribution function of the original system variables and an additional entropy variable. For a simple diffusion model we solve the extended Fokker-Planck equation to verify our approach to the fluctuation theorem.
- 社団法人日本物理学会の論文
- 2005-06-15
著者
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Munakata Toyonori
Department Of Applied Mathematics And Physics Graduate School Of Informatics Kyoto University
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Munakata Toyonori
Department Of Applied Mathematics And Physics Faculty Of Engineering Kyoto University
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