Wednesday, July 24, 2013

1307.6182 (Ting-Gui Zhang et al.)

Separable State Decompositions for a Class of Mixed States    [PDF]

Ting-Gui Zhang, Xiaofen Huang, Xianqing Li-Jost, Naihuan Jing, Shao-Ming Fei
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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