A Jarzynski-type equality for nonequilibrium steady-state probabilities

Ugur Cetiner

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arXiv · 2410.10691

A Jarzynski-type equality for nonequilibrium steady-state probabilities

Ugur Cetiner

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Abstract

We show that steady-state probabilities of a nonequilibrium Markovian system can be reconstructed from a weighted ensemble average of finite-time loop-erased paths. Each path $\Gamma$ is weighted by $e^{-S(\Gamma)}$, where $S(\Gamma)$ can be interpreted either as the action functional or as the entropy change in the surrounding reservoirs. In doing so, we uncover a Jarzynski-type equality for nonequilibrium steady states. We also reveal that the probabilities of loop-erased paths obey strong thermodynamic symmetry relations.

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Ugur Cetiner. 2024-10-14. A Jarzynski-type equality for nonequilibrium steady-state probabilities. https://arxiv.org/abs/2410.10691

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