Autor: F. Farhadmotamed, A. J. van Wonderen, K. Lendi
Rok vydání: 1998
Předmět:
Zdroj: Journal of Statistical Physics. 92:1115-1135
ISSN: 0022-4715
DOI: 10.1023/a:1023004929346
Popis: The fundamental concept of relative entropy is extended to a functional that is regular-valued also on arbitrary pairs of nonfaithful states of open quantum systems. This regularized version preserves almost all important properties of ordinary relative entropy such as joint convexity and contractivity under completely positive quantum dynamical semigroup time evolution. On this basis a generalized formula for entropy production is proposed, the applicability of which is tested in models of irreversible processes. The dynamics of the latter is determined by either Markovian or non-Markovian master equations and involves all types of states.
Databáze: OpenAIRE