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Quantum relative phase, m-tangle, and multi-local Lorentz-group invariant
Stockholm University, Faculty of Science, Department of Physics.
2010 (English)In: Quantum Information Processing, ISSN 1570-0755, E-ISSN 1573-1332, Vol. 9, no 2, 233-238 p.Article in journal (Refereed) Published
Abstract [en]

In this paper we define a family of hermitian operators by which to extract what we call quantum-relative-phase properties of a pure or mixed multipartite quantum state, and we relate these properties to known measures of entanglement, namely the m-tangle and the invariant S-(m)(2) of the multi-local Lorentz-group SL(2, C)(circle times m). Our construction is based on the orthogonal complement of a positive operator valued measure on quantum phase.

Place, publisher, year, edition, pages
Springer , 2010. Vol. 9, no 2, 233-238 p.
Keyword [en]
Quantum entanglement, Multipartite quantum systems, Quantum information and computation
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-49106DOI: 10.1007/s11128-009-0150-9ISI: 000276260400005OAI: oai:DiVA.org:su-49106DiVA: diva2:376912
Note
authorCount :1Available from: 2010-12-13 Created: 2010-12-10 Last updated: 2017-12-11Bibliographically approved

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