Measure for the Non-Markovianity of Quantum Processes

Recently, a measure for the non-Markovian behavior of quantum processes in open systems has been developed which is based on the quantification of the flow of information between the open system and its environment [Phys. Rev. Lett. 103, 210401 (2009)]. The information flow is connected to the rate...

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Bibliographic Details
Published inarXiv.org
Main Authors Elsi-Mari Laine, Piilo, Jyrki, Breuer, Heinz-Peter
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 15.06.2010
Subjects
Information flow
Markov processes
Open systems
Physics - Quantum Physics
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Summary:Recently, a measure for the non-Markovian behavior of quantum processes in open systems has been developed which is based on the quantification of the flow of information between the open system and its environment [Phys. Rev. Lett. 103, 210401 (2009)]. The information flow is connected to the rate of change of the trace distance between quantum states which can be interpreted in terms of the distinguishability of these states. Here, we elaborate the mathematical details of this theory, present applications to specific physical models, and discuss further theoretical and experimental implications, as well as relations to alternative approaches proposed recently.
ISSN:2331-8422
DOI:10.48550/arxiv.1002.2583