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Strong Constraints on Models that Explain the Violation of Bell Inequalities with Hidden Superluminal Influences

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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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Acknowledgments

We are grateful to Yeong-Cherng Liang and Stefano Pironio for helpful comments and stimulating discussions. This work is supported by the Ministry of Education, the National Research Foundation of Singapore and the Swiss NCCR-QSIT. A.S. acknowledges support from the Social Trends Institute (Barcelona and New York).

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Authors and Affiliations

  1. Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore , 117543, Singapore

    Valerio Scarani & Jean-Daniel Bancal

  2. Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore , 117542, Singapore

    Valerio Scarani

  3. Center for Quantum Philosophy, Berninastrasse 85, 8057 , Zurich, Switzerland

    Antoine Suarez

  4. Group of Applied Physics, University of Geneva, Geneva, Switzerland

    Nicolas Gisin

Authors
  1. Valerio Scarani
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  2. Jean-Daniel Bancal
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  3. Antoine Suarez
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  4. Nicolas Gisin
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Correspondence to Valerio Scarani.

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Scarani, V., Bancal, JD., Suarez, A. et al. Strong Constraints on Models that Explain the Violation of Bell Inequalities with Hidden Superluminal Influences. Found Phys 44, 523–531 (2014). https://doi.org/10.1007/s10701-014-9785-1

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  • DOI: https://doi.org/10.1007/s10701-014-9785-1

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