The European Physical Journal Special Topics

Estimation of concurrence for multipartite mixed states

Xiaoting Gao, S.-M. Fei

Published May 20, 2008• 45 citations

Abstract

We investigate the lower bound of concurrence for multipartite quantum mixed states. Analytical lower bounds are derived for some multipartite systems, by establishing functional relations between concurrence and the generalized partial transpositions.

DOI: 10.1140/epjst/e2008-00694-x

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