Multipartite nonlocality in the presence of particle-number super-selection rules

Details Multipartite nonlocality in the presence of particle-number super-selection rules Multipartite nonlocality in the presence of particle-number super-selection rules

2011-08-06

arxiv.org/abs/1108.1436v1

Physics

Quantum Physics

1 figure

Scientific paper

Super-selection rules severely restrict the possible operations one can perform on an entangled state. Their effect on the observation of non-locality through the Bell inequalities is only partially understood in the bipartite case. In this article we examine a range of multipartite entangled states and find that for those states the super-selection rules limit the genuinely multipartite nonlocality but not the non-genuinely multipartite. We argue that when the number of particles is smaller than the number of parties, genuinely multipartite nonlocality cannot be detected unless the super-selection rules can be relaxed. The tests proposed in the paper can be implemented using routinely used experimental techniques.

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