A Classical Model of EPR Experiment with Quantum Mechanical Correlations and Bell Inequalities

  • A. O. Barlut
  • P. Meystre
Part of the NATO ASI Series book series (NSSB, volume 135)


Despite considerable amounts of literature in recent years, one of the difficulties with the interpretation of Bell’s inequalities has been the lack of explicit models of hidden variables with which to compare classical and quantum correlations and to test the assumptions underlying their derivation. It is now generally believed that the so-called “local-realistic” hidden variable (HV) theories are ruled out by experiment [1,2]. In this paper, we present a simple classical model of correlated events which can in principle be realized experimentally, and which exhibits the same correlations as those obtained in spin1/2 correlation experiments. Our model is local in the sense of Bell, but is not in conflict with Bell’s inequalities, because as we shall see the normalization of the correlation function is performed in different ways in our model and in the derivation of these inequalities.


Correlation Function Joint Probability Hide Variable Spin Correlation Bell Inequality 
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Copyright information

© Plenum Press, New York 1986

Authors and Affiliations

  • A. O. Barlut
    • 1
  • P. Meystre
    • 1
  1. 1.Max-Planck Institute für QuantenoptikGarchingFederal Republic of Germany

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