Integral fluctuation theorems and trace-preserving map

Abstract

The detailed fluctuation theorem implies symmetry in the generating function of entropy production probability. The integral fluctuation theorem directly follows from this symmetry and the normalization of the probability. In this paper, we rewrite the generating function by integrating measurements and evolution into a constructed mapping. This mapping is completely positive, and the original integral FT is determined by the trace-preserving property of these constructed maps. We illustrate the convenience of this method by discussing the eigenstate fluctuation theorem and heat exchange between two baths. This set of methods is also applicable to the generating functions of quasi-probability, where we observe the Petz recovery map arising naturally from this approach.

16 pages, 1 figures

References in corpus (6)

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• Nonequilibrium Detailed Fluctuation Theorem for Repeated Discrete Feedback
• Non-Markovian dynamics under time-translation symmetry
• Eigenstate Fluctuation Theorem in the Short and Long Time Regimes
• Multiple entropy production for multitime quantum processes
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