The geometry of bipartite qutrits including bound entanglement

Details The geometry of bipartite qutrits including bound entanglement The geometry of bipartite qutrits including bound entanglement

2007-05-10

arxiv.org/abs/0705.1403v2

Physics Letters A, Vol. 372, Issue 13, 2190-2195 (2008)

Physics

Quantum Physics

extended version: new results added, 6 pages, 6 figures. accepted by Physics Letters A

Scientific paper

10.1016/j.physleta.2007.11.028

We investigate the state space of bipartite qutrits. We construct an analog to the "magic" tetrahedron for bipartite qubits--a magic simplex W. It is formed by all convex combination of nine Bell states which are constructed using the Weyl operators. Due to the high symmetry it is enough to consider certain typical slices through W. Via optimal entanglement witnesses we find regions of bound entangled states inside W.

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