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arXiv · 2108.09979

Thermodynamic uncertainty relations for many-body systems with fast jump rates and large occupancies

Ohad Shpielberg·Arnab Pal
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Abstract

A universal large $\mathcal{N}$ theory of nonequilibrium fluctuations emerges in the limit of fast jump rates and large occupancies. We use this theory to derive a set of coarse grained thermodynamic uncertainty relations (TUR) -- one of them being an activity bound. Importantly, the activity serves as a tighter bound for the entropy production in 1D systems. These results are particularly useful in the many-body regime, where typically a coarse grained approach is required to handle the large microscopic state space.

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Ohad Shpielberg, Arnab Pal. 2021-08-23. Thermodynamic uncertainty relations for many-body systems with fast jump rates and large occupancies. https://doi.org/10.1103/physreve.104.064141

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