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arXiv · 2008.04409

A brief introduction to observational entropy

Dominik Šafránek·Anthony Aguirre·Joseph Schindler·J. M. Deutsch
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Abstract

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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Dominik Šafránek, Anthony Aguirre, Joseph Schindler, J. M. Deutsch. 2020-08-10. A brief introduction to observational entropy. https://doi.org/10.1007/s10701-021-00498-x

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