Commun. Korean Math. Soc. 2009; 24(1): 99-109
Printed March 1, 2009
Copyright © The Korean Mathematical Society.
Chul Ki Ko
Yonsei University
The aim of this paper is to find the set of the fixed elements and the set of elements for which equality holds in Schwarz inequality for the KMS-symmetric Markovian semigroup $\{S_t\}_{t\ge0}$ given in \cite{Pa1}. As an application, we study some properties such as the ergodicity and the asymptotic behavior of the semigroup.
Keywords: quantum Markovian semigroups, ergodicity
MSC numbers: 46L55, 37A60
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