Equations of Motion for Fluctuation and Variance in Nonequilibrium State
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概要
- 論文の詳細を見る
A linear Langevin type equation of motion for a set of fluctuations of physical quantities in nonequilibrium is derived on the basis of kinematiocal considerations. This equation has a time-dependent coefficient and asymmetric correlations between fluctuating forces. The fluctuationg forces satisfy a formula similar to the fluctuation-dissipation theorem. A variance equation is deduced from our equation of motion through the assumption that the fluctuationg forces have short time correlations. This equation has the same form as that obtained from the point of view of the asymptotic evaluation of the master equation for macrovariables. The variance equation derived has an applicability wider than what was recognized in such an asymptotic evluation.
- 理論物理学刊行会の論文
- 1976-08-25
著者
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Furukawa H
Kyoto Univ. Kyoto
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Furukawa Hiroshi
Institute Of Physical Sciences Faculty Of Education Yamaguchi University
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FURUKAWA Hiroshi
Institute of Physical Sciences, Faculty of Education, Yamaguchi University
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