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Condensed Matter > Statistical Mechanics
Title: Irreversibility as divergence from equilibrium
(Submitted on 2 Apr 2024 (v1), last revised 10 Apr 2024 (this version, v2))
Abstract: The entropy production is commonly used to gauge a system's distance from equilibrium, but this interpretation lacks a formal description due to the absence of a natural equilibrium measure. This analysis shows that the entropy production of a Markov system measures its separation from specific equilibrium dynamics. These reference dynamics correspond to the closest reversible systems in the information-theoretic sense. This result yields new lower bounds for the entropy production and novel links between thermodynamics and information geometry.
Submission history
From: David Andrieux [view email][v1] Tue, 2 Apr 2024 14:17:54 GMT (32kb,D)
[v2] Wed, 10 Apr 2024 18:41:03 GMT (32kb,D)
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