Wednesday, June 26, 2013

1306.5805 (Maximilian Schlosshauer et al.)

Is the Pusey-Barrett-Rudolph Theorem Compatible with Quantum

Maximilian Schlosshauer, Arthur Fine
The Pusey-Barrett-Rudolph (PBR) no-go theorem targets a class of "epistemic" hidden-variables models in which hidden variables associated with distinct quantum states overlap. We show that the PBR strategy leads to a no-go result that would also rule out nonepistemic ("ontic") models. Moreover, it would rule out a vast class of deterministic hidden-variables theories, even those known to be consistent. The strength of this result calls into question a central assumption of the PBR strategy about how hidden variables of composite systems relate to hidden variables of components.
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