Entanglement and permutational symmetry

Details Entanglement and permutational symmetry Entanglement and permutational symmetry

2008-12-24

arxiv.org/abs/0812.4453v3

Phys. Rev. Lett. 102, 170503 (2009)

Physics

Quantum Physics

5 pages, no figures, revtex4; v3: published version

Scientific paper

10.1103/PhysRevLett.102.170503

We study the separability of permutationally symmetric quantum states. We
show that for bipartite symmetric systems most of the relevant entanglement
criteria coincide. However, we provide a method to generate examples of bound
entangled states in symmetric systems, for the bipartite and the multipartite
case. These states shed some new light on the nature of bound entanglement.

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