期刊
FOUNDATIONS OF PHYSICS
卷 51, 期 5, 页码 -出版社
SPRINGER
DOI: 10.1007/s10701-021-00498-x
关键词
Entropy; Quantum coarse-graining; Entanglement entropy; Thermodynamics
资金
- Foundational Questions Institute (FQXi.org)
- Faggin Presidential Chair Fund
- Institute for Basic Science in Korea [IBS-R024-Y2, IBS-R024-D1]
Observational entropy has been developed as a quantum generalization of Boltzmann entropy and a general framework for classical and quantum equilibrium and non-equilibrium coarse-grained entropy. This paper reviews its construction, interpretation, important properties, and applications, aimed at a broad class of researchers in a self-contained and pedagogical manner.
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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