Fidelity measure and conservation of information in general probabilistic theories
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Date
Authors
Zander, Claudia
Plastino, Angel Ricardo (Angelo)
Journal Title
Journal ISSN
Volume Title
Publisher
EPLA
Abstract
We investigate the main features of a measure of fidelity between states in a general family of probabilistic theories admitting classical probability theory and standard quantum theory as particular instances. We apply the aforementioned measure to investigate informationtheoretical
features of these theories related to the conservation of information during the evolution
of closed physical systems. In particular, we derive a generalization of a fundamental result in
quantum theory relevant for the measurement problem: Zurek’s recent extension of the no-cloning theorem.
Description
Keywords
Fidelity measure, Probabilistic theories
Sustainable Development Goals
Citation
Zander, C & Plastino, AR 2009, 'Fidelity measure and conservation of information in general probabilistic theories', Europhysics Letters, vol. 86, pp. 18004(p1-p6). [www.epljournal.org]