Abstract
The most fundamental properties of quantum entropy are derived by considering the union of two ensembles. We discuss the limits these properties put on an entropy measure and obtain that they uniquely determine the form of the entropy functional up to normalisation. In particular, the result implies that all other properties of quantum entropy may be derived from these first principles.
Original language | English |
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Pages (from-to) | 799-808 |
Number of pages | 10 |
Journal | Journal of Statistical Physics |
Volume | 165 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2016 Dec 1 |
Keywords
- Entropic function
- First principles
- Quantum entropy
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Mathematical Physics