Entropic Fluctuation Theorems for the Spin-Fermion Model
Mathematical Physics
2026-02-20 v2 math.MP
Abstract
We study entropic fluctuations in the Spin-Fermion model describing an -level quantum system coupled to several independent thermal free Fermi gas reservoirs. We establish the quantum Evans-Searles and Gallavotti-Cohen fluctuation theorems and identify their link with entropic ancilla state tomography and quantum phase space contraction of non-equilibrium steady state. The method of proof involves the spectral resonance theory of quantum transfer operators developed by the authors in previous works.
Cite
@article{arxiv.2411.14841,
title = {Entropic Fluctuation Theorems for the Spin-Fermion Model},
author = {Tristan Benoist and Laurent Bruneau and Vojkan Jakšić and Annalisa Panati and Claude-Alain Pillet},
journal= {arXiv preprint arXiv:2411.14841},
year = {2026}
}
Comments
39 pages, 1 figure, related to arXiv:2409.15485 Only affiliation data have been modified