Daniel Cavalcanti, Antonio Acin, Nicolas Brunner, Tamas Vertesi
Recently, Palazuelos presented the first example of super-activation of quantum nonlocality. More precisely, by combining several copies of a state rho admitting a local hidden variable model, it becomes possible to violate a Bell inequality, in a deterministic way. Here we show that super-activation of quantum nonlocality is in fact a rather generic phenomenon. In particular, we show that any d x d entangled state with entanglement fraction larger than 1/d can be super-activated. Remarkably this implies that all entangled states which are useful for teleportation are nonlocal resources, hence providing a direct link between teleportation and nonlocality.
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http://arxiv.org/abs/1207.5485
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