Determination of hidden variable models reproducing the spin-singlet

Abstract

The experimental violation of Bell inequality establishes necessary but not sufficient conditions that any theory must obey. Namely, a theory compatible with the experimental observations can satisfy at most two of the three hypotheses at the basis of Bell's theorem: free will, no-signaling, and outcome-Independence. Quantum mechanics satisfies the first two hypotheses but not the latter. Experiments not only violate Bell inequality, but show an excellent agreement with quantum mechanics. This fact restricts further the class of admissible theories. In this work, the author determines the form of the hidden-variable models that reproduce the quantum mechanical predictions for a spin singlet while satisfying both the hypotheses of free will and no-signaling. Two classes of hidden-variable models are given as an example, and a general recipe to build infinitely many possible models is provided.

Slightly revised version, 7 pages, no figures, to appear in PRA. Final version, removed extra references no longer cited

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Cited by in corpus (6)

• Onthological models predictively inequivalent to quantum theory
• An impossibility theorem for Parameter Independent hidden variable theories
• Are quantum correlations genuinely quantum?
• On the completeness of quantum mechanics and the interpretation of the state vector
• A mathematical perspective on the phenomenology of non-perturbative Quantum Field Theory
• Beyond Bell's theorem: Admissible hidden-variable models for the spin-singlet