Information bound for entropy production from the detailed fluctuation theorem

Abstract

Fluctuation theorems impose fundamental bounds in the statistics of the entropy production, with the second law of thermodynamics being the most famous. Using information theory, we quantify the information of entropy production and find an upper tight bound as a function of its mean from the strong detailed fluctuation theorem. The bound is given in terms of a maximal distribution, a member of the exponential family with nonlinear argument. We show that the entropy produced by heat transfer using a bosonic mode at weak coupling reproduces the maximal distribution in a limiting case. The upper bound is extended to the continuous domain and verified for the heat transfer using a levitated nanoparticle. Finally, we show that a composition of qubit swap engines satisfies a particular case of the maximal distribution regardless of its size.

arXiv comment5 pages, 3 figures

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• Detailed fluctuation theorem bounds apparent violations of the second law
• Thermodynamic Skewness Relation From Detailed Fluctuation Theorem
• Quantum work statistics of controlled evolutions