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A brief introduction to observational entropy

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arxiv 2008.04409 v2 pith:5A6NSWD7 submitted 2020-08-10 quant-ph cond-mat.quant-gascond-mat.stat-mech

classification quant-phcond-mat.quant-gascond-mat.stat-mech
keywords entropyframeworkobservationalquantumaimedapplicationsbeenboltzmann
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In the past several years, observational entropy has been developed as both a (time-dependent) quantum generalization of Boltzmann entropy, and as a rather general framework to encompass classical and quantum equilibrium and non-equilibrium coarse-grained entropy. In this paper we review the construction, interpretation, most important properties, and some applications of this framework. The treatment is self-contained and relatively pedagogical, aimed at a broad class of researchers.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Work and entropy of mixing in isolated quantum systems

    quant-ph 2025-07 conditional novelty 6.0 of 10

    Mixing entropy is identified with observational entropy, yielding a Landauer-like work-difference bound with an observational temperature, and a resolution of the Gibbs mixing paradox in isolated quantum systems.

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