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arXiv · 1204.1004

Fluctuation Relation for Heat

Jae Dong Noh·Jong-Min Park
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Abstract

We present a fluctuation relation for heat dissipation in a nonequilibrium system. A nonequilibrium work is known to obey the fluctuation theorem in any time interval $t$. A heat, which differs from a work by an energy change, is shown to satisfy a modified fluctuation relation. Modification is brought by correlation between a heat and an energy change during nonequilibrium processes whose effect may not be negligible even in the $t\to\infty$ limit. The fluctuation relation is derived for overdamped Langevin equation systems, and tested in a linear diffusion system.

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Jae Dong Noh, Jong-Min Park. 2012-04-04. Fluctuation Relation for Heat. https://doi.org/10.1103/physrevlett.108.240603

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