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Hidden parameters in open-system evolution unveiled by geometric phase
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Quantum Chemistry. (Quantum information theory)
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Quantum Chemistry. (Quantum information theory)
2010 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 82, no 5, 052107- p.Article in journal (Refereed) Published
Abstract [en]

We find a class of open-system models in which individual quantum trajectories may depend on parameters that are undetermined by the full open-system evolution. This dependence is imprinted in the geometric phase associated with such trajectories and persists after averaging. Our findings indicate a potential source of ambiguity in the quantum trajectory approach to open quantum systems.

Place, publisher, year, edition, pages
APS , 2010. Vol. 82, no 5, 052107- p.
Keyword [en]
Open quantum systems, quantum optics, geometric phase
National Category
Physical Sciences
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-133420DOI: 10.1103/PhysRevA.82.052107ISI: 000283922100004OAI: oai:DiVA.org:uu-133420DiVA: diva2:369309
Note
Additional address (E. Sjöqvist): Centre for Quantum Technologies, NUS, Singapore. Also in Virtual Journal of Quantum Information, November issue 2010Available from: 2010-11-10 Created: 2010-11-10 Last updated: 2017-12-12Bibliographically approved

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Publisher's full texthttp://arxiv.org/abs/1005.2992

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Sjöqvist, Erik

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