A new class of states with positive partial transposition

Abstract

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.

4.5 pages

References in corpus (2)

• On multipartite invariant states I. Unitary symmetry
• On multipartite invariant states II. Orthogonal symmetry

Cited by in corpus (7)

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• Generalized Circulant Densities and a Sufficient Condition for Separability
• Extended Reduction Criterion and Lattice States
• On the structure of entanglement witnesses and new class of positive indecomposable maps