Quantum states with strong positive partial transpose

Details Quantum states with strong positive partial transpose Quantum states with strong positive partial transpose

2007-10-10

arxiv.org/abs/0710.1934v1

Phys. Rev. A 77, 022113 (2008)

Physics

Quantum Physics

4 pages

Scientific paper

10.1103/PhysRevA.77.022113

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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