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A class of quantum gate entanglers
Stockholm University, Faculty of Science, Department of Physics.
2010 (English)In: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. T140, 14048- p.Article in journal (Refereed) Published
Abstract [en]

We construct quantum gate entanglers for different classes of multipartite states based on the definition of W and GHZ concurrence classes. First, we review the basic construction of concurrence classes based on the orthogonal complement of a positive operator valued measure (POVM) on quantum phase. Then, we construct quantum gate entanglers for different classes of multi-qubit states. In particular, we show that these operators can entangle multipartite states if they satisfy some conditions for W and GHZ classes of states. Finally, we explicitly give the W class and GHZ classes of quantum gate entanglers for four-qubit states.

Place, publisher, year, edition, pages
2010. Vol. T140, 14048- p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:su:diva-66215DOI: 10.1088/0031-8949/2010/T140/014048ISI: 000284693600050OAI: oai:DiVA.org:su-66215DiVA: diva2:467726
Note
authorCount :1Available from: 2011-12-19 Created: 2011-12-19 Last updated: 2017-12-08Bibliographically approved

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