Entropy, information and quantum measurements

Autor:	Göran Lindblad
Rok vydání:	1973
Předmět:	Conditional entropy Quantum discord Statistical and Nonlinear Physics Coherent information Joint entropy Quantum relative entropy Generalized relative entropy Quantum mechanics 82.46 Statistical physics Quantum mutual information Mathematical Physics Joint quantum entropy Mathematics
Zdroj:	Comm. Math. Phys. 33, no. 4 (1973), 305-322
ISSN:	1432-0916 0010-3616
DOI:	10.1007/bf01646743
Popis:	The conditional entropy between two states of a quantum system is shown to be nonincreasing when a complete measurement is performed on the system. The information between two quantum systems is defined and is shown to be bounded above by the logarithmic correlation. This inequality is then applied to the measurement process. The entropy changes in the observed system and the measuring apparatus are compared with the information gain in the measurement.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a3fe0f9779ef365bb33b15011a4cc89 https://doi.org/10.1007/bf01646743 Zobrazit plný text záznamu Full text from SpringerLink