An algebraic condition for the approach to equilibrium of an open N-level system

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Abstract

We give an algebraic condition in order that a completely positive dynamical semigroup of an N-level system has a unique (invariant) equilibrium state and that every initial state approaches this equilibrium state as t→∞. We apply our result to a semigroup arising in the weak coupling limit.

Original languageEnglish
Pages (from-to)33-38
Number of pages6
JournalLetters in Mathematical Physics
Volume2
Issue number1
DOIs
StatePublished - Aug 1977
Externally publishedYes

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