$Comment on a no-go theorem for $\psi$-ontic models$

Comment on a no-go theorem for $\psi$-ontic models

In a recent paper [Carcassi, Oldofredi and Aidala, Found Phys 54, 14 (2024)] it is claimed that the whole Harrigan--Spekkens framework of ontological models is inconsistent with quantum theory. They show this by showing that all pure quantum states in $\psi$-ontic models must be orthogonal. In thi...

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Veröffentlicht in:	arXiv.org 2024-02
Hauptverfasser:	Walleghem, Laurens, Khanna, Shashaank, Bhavsar, Rutvij
Format:	Artikel
Sprache:	eng
Schlagworte:	Quantum theory
Online-Zugang:	Volltext
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Zusammenfassung:	In a recent paper [Carcassi, Oldofredi and Aidala, Found Phys 54, 14 (2024)] it is claimed that the whole Harrigan--Spekkens framework of ontological models is inconsistent with quantum theory. They show this by showing that all pure quantum states in $\psi$-ontic models must be orthogonal. In this note, we identify some crucial mistakes in their argument to the extent that the main claim is incorrect.
ISSN:	2331-8422

Comment on a no-go theorem for \(\psi\)-ontic models