The proper form of the generator in the weak coupling limit

R. Dümcke, H. Spohn

Research output: Contribution to journalArticlepeer-review

166 Scopus citations

Abstract

In the literature one finds several different Markov approximations for a quantum system weakly coupled to a thermal reservoir. We want to point out that, in general, only the rigorous approximation given by E.B. Davies preserves positivity.

Original languageEnglish
Pages (from-to)419-422
Number of pages4
JournalZeitschrift für Physik B Condensed Matter and Quanta
Volume34
Issue number4
DOIs
StatePublished - Dec 1979
Externally publishedYes

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