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Strong Constraints on Models that Explain the Violation of Bell Inequalities with Hidden Superluminal Influences |
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| Authors: | Valerio Scarani Jean-Daniel Bancal Antoine Suarez Nicolas Gisin |
| Institution: | 1. Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore?, 117543, Singapore 2. Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore?, 117542, Singapore 3. Center for Quantum Philosophy, Berninastrasse 85, 8057?, Zurich, Switzerland 4. Group of Applied Physics, University of Geneva, Geneva, Switzerland |
| Abstract: | 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. Nat Phys 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. |
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