Separability of mixed states: necessary
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Michał Horodecki; Paweł Horodecki; Ryszard Horodecki
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Article
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1996
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Elsevier Science
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English
⚖ 558 KB
We provide necessary and sufficient conditions for the separability of mixed states. As a result we obtain a simple criterion of the separability for 2 × 2 and 2 × 3 systems. Here, the positivity of the partial transposition of a state is necessary and sufficient for its separability. However, this