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.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.

arXiv:2405.06526May 10, 20240 citations

PBR, Nonreality and Entangled Measurement

Gábor Hofer‐Szabó

Foundations of PhysicsMay 28, 20242 citations

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.