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Kinematic approach to mixed state geometric phase in nonunitary evolution
Dept. of Physics, NUS, Singapore.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Quantum Chemistry.
Dept. of Physics, NUS, Singapore.
Dept. of Physics, NUS, Singapore.
2004 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 93, no 8, 080405- p.Article in journal (Refereed) Published
Abstract [en]

A kinematic approach to the geometric phase for mixed quantal states in nonunitary evolution is proposed. This phase is manifestly gauge invariant and can be experimentally tested in interferometry. It leads to well-known results when the evolution is unitary.

Place, publisher, year, edition, pages
2004. Vol. 93, no 8, 080405- p.
Keyword [en]
Geometric phase, mixed states, nonunitary evolution
National Category
Physical Sciences
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-73208DOI: 10.1103/PhysRevLett.93.080405ISI: 000223472400005OAI: oai:DiVA.org:uu-73208DiVA: diva2:101119
Note
Also in Virtual Journal of Quantum Information, September issue 2004.Available from: 2007-02-06 Created: 2007-02-06 Last updated: 2011-10-06

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Sjöqvist, Erik

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