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arXiv · 2310.15311

Entropy production and thermodynamic inference for stochastic microswimmers

Michalis Chatzittofi·Jaime Agudo-Canalejo·Ramin Golestanian
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Abstract

The question of characterization of the degree of non-equilibrium activity in active matter systems is studied in the context of a stochastic microswimmer model driven by a chemical cycle. The resulting dynamical properties and entropy production rate unravel a complex interplay between the chemical and the hydrodynamic degrees of freedom beyond linear response, which is not captured by conventional phenomenological approaches. By studying the precision-dissipation trade-off, a new protocol is proposed in which microscopic chemical driving forces can be inferred experimentally. Our findings highlight subtleties associated with the stochastic thermodynamics of autonomous microswimmers.

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Michalis Chatzittofi, Jaime Agudo-Canalejo, Ramin Golestanian. 2023-10-23. Entropy production and thermodynamic inference for stochastic microswimmers. https://doi.org/10.1103/physrevresearch.6.l022044

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