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Entropy production as change in observational entropy

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arxiv 1906.09933 v2 pith:ITLNDG3F submitted 2019-06-24 cond-mat.stat-mech quant-ph

Philipp Strasberg This is my paper · ORCID
classification cond-mat.stat-mechquant-ph
keywords entropyobservationalproductionsystemabstractactualallowapologize
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The second law of nonequilibrium thermodynamics within the open system paradigm (a small system coupled to one or multiple baths) is derived. This is done by showing positivity of entropy production for arbitrary Hamiltonian dynamics for a large class of initial states. Using the recently introduced notion of observational entropy, shortcomings of previous approaches are overcome. I apologize that the actual abstract of the manuscript is longer than the arXiv guidelines allow and therefore not displayed here.

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Cited by 1 Pith paper

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  1. Typical and extreme entropies of long-lived isolated quantum systems

    quant-ph 2019-08 conditional novelty 5.0 of 10

    In a small fermionic lattice, observational entropy matches Boltzmann-like behavior at its extreme values, while entanglement entropy can fall to near zero by emptying a subsystem.

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