Separable State Decompositions for a Class of Mixed States

Published 23 Jul 2013 in quant-ph | (1307.6182v1)

Abstract: We study certain quantum states for which the PPT criterion is both sufficient and necessary for separability. A class of $n\times n$ bipartite mixed states is presented and the conditions of PPT for these states are derived. The separable pure state decompositions of these states are explicitly constructed when they are PPT.

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