A new class of states with positive partial transposition

Details A new class of states with positive partial transposition A new class of states with positive partial transposition

2006-02-07

arxiv.org/abs/quant-ph/0602076v2

Phys. Rev. A 74, 022308 (2006)

Physics

Quantum Physics

4.5 pages

Scientific paper

10.1103/PhysRevA.74.022308

We construct a new class of PPT states for bipartite "d x d" systems. This
class is invariant under the maximal commutative subgroup of U(d) and contains
as special cases almost all known examples of PPT states. Theses states may be
used to test the atomic property of positive maps which are crucial in studying
quantum entanglement.

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