1304.0532 (Valerio Scarani et al.)

Strong constraints on models that explain the violation of Bell
inequalities with hidden superluminal influences    [PDF]

Valerio Scarani, Jean-Daniel Bancal, Antoine Suarez, Nicolas Gisin

We discuss models that attempt to provide an explanation for the violation of Bell inequalities at a distance in terms of hidden influences. These models reproduce the quantum correlations in most situations, but are restricted to produce local correlations in some configurations. The argument presented in [Bancal et al. Nature Physics 8, 867 (2012)] applies to all of these models, which can thus be proved to allow for faster-than-light communication. In other words, the signalling character of these models cannot remain hidden.

View original: http://arxiv.org/abs/1304.0532