Phys. Rev. Lett. 95, 260502 (2005) [4 pages]Concurrence of Mixed Multipartite Quantum StatesReceived 11 November 2004; revised 8 April 2005; published 20 December 2005 We propose generalizations of concurrence for multipartite quantum systems that can distinguish qualitatively distinct quantum correlations. All introduced quantities can be evaluated efficiently for arbitrary mixed sates. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.260502
DOI:
10.1103/PhysRevLett.95.260502
PACS:
03.67.Mn, 89.70.+c
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