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Foundations of Physics

PBR, Nonreality and Entangled Measurement

Gábor Hofer‐Szabó

Published May 28, 2024• 2 citations
Publisher
DOI
10.1007/s10701-024-00772-8

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In a recent paper, Cabbolet argues that the PBR theorem is nonreal since in the ensemble interpretation of quantum mechanics the entangled measurement used in the derivation of the PBR theorem is nonexisting. However, Cabbolet (1) doesn't provide any argument for the nonexistence of entangled measurements beyond the incompatibility of the existence of entangled measurements and the existence of $ψ$-epistemic models which we already know from the PBR theorem; and (2) he doesn't show why it is more reasonable to abandon entangled measurements instead of $ψ$-epistemic models. Hence, the PBR theorem remains intact.

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Addendum to ‘On the Nonreality of the PBR Theorem’: Disproof by Generic Counterexample

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arXiv:2402.15742•Foundations of Physics•Jul 6, 2024•2 citations
In a recent paper, Cabbolet argues that the PBR theorem is nonreal since in the ensemble interpretation of quantum mechanics the entangled measurement used in the derivation of the PBR theorem is nonexisting. However, Cabbolet (1) doesn't provide any argument for the nonexistence of entangled measurements beyond the incompatibility of the existence of entangled measurements and the existence of ψψψ-epistemic models which we already know from the PBR theorem; and (2) he doesn't show why it is more reasonable to abandon entangled measurements instead of ψψψ-epistemic models. Hence, the PBR theorem remains intact.