Transience and recurrence of quantum Markov semigroups |
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Authors: | Fagnola Franco Rebolledo Rolando |
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Institution: | (1) Università degli Studi di Genova, Dipartimento di Matematica, via Dodecaneso 35, I-16146 Genova,;(2) Facultad de Matemáticas, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 22, Chile. e-mail: rrebolle@puc.cl, CL |
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Abstract: | This article introduces a concept of transience and recurrence for a Quantum Markov Semigroup and explores its main properties
via the associated potential. We show that an irreducible semigroup is either recurrent or transient and characterize transient
semigroups by means of the existence of non trivial superharmonic operators.
Received: 27 January 2003 / Revised version: 19 February 2003 /
Published online: 12 May 2003
This research has been partially supported by the ``Cátedra Presidencial en Análisis Cualitativo de Sistemas Dinámicos Cuánticos',
DIPUC, FONDECYT project 1030552, MIUR program ``Probabilità Quantistica e Applicazioni', 2003-2004 and MECESUP PUC 0103.
Mathematics Subject Classification (2000): 60J45, 81S25, 60J99, 37A50, 47A40
Key words or phrases: Quantum Markov semigroups – Potential theory – Markov processes |
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