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MiS Preprint
89/2008
A Note on Quantum Entanglement and PPT
Shao-Ming Fei and Xianqing Li-Jost
Abstract
We study quantum states for which the PPT criterion is both sufficient and necessary for separability. We present a class of 3 x 3 bipartite mixed states and show that these states are separable if and only if they are PPT.
