A toy model for quantum mechanics

Details A toy model for quantum mechanics A toy model for quantum mechanics

2007-05-18

arxiv.org/abs/0705.2742v1

Found. Phys. 37, 1447 (2007)

Physics

Quantum Physics

in which the author breaks his vow to never use the words "ontic" and "epistemic" in public

Scientific paper

10.1007/s10701-007-9171-3

The toy model used by Spekkens [R. Spekkens, Phys. Rev. A 75, 032110 (2007)] to argue in favor of an epistemic view of quantum mechanics is extended by generalizing his definition of pure states (i.e. states of maximal knowledge) and by associating measurements with all pure states. The new toy model does not allow signaling but, in contrast to the Spekkens model, does violate Bell-CHSH inequalities. Negative probabilities are found to arise naturally within the model, and can be used to explain the Bell-CHSH inequality violations.

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