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arXiv · 0710.1934

Quantum states with strong positive partial transpose

Dariusz Chruscinski·Jacek Jurkowski·Andrzej Kossakowski
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Abstract

We construct a large class of bipartite M x N quantum states which defines a proper subset of states with positive partial transposes (PPT). Any state from this class is PPT but the positivity of its partial transposition is recognized with respect to canonical factorization of the original density operator. We propose to call elements from this class states with strong positive partial transposes (SPPT). We conjecture that all SPPT states are separable.

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Dariusz Chruscinski, Jacek Jurkowski, Andrzej Kossakowski. 2007-10-10. Quantum states with strong positive partial transpose. https://doi.org/10.1103/physreva.77.022113

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