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arXiv · 2402.13140

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

Laurens Walleghem·Shashaank Khanna·Rutvij Bhavsar
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Abstract

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.

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Laurens Walleghem, Shashaank Khanna, Rutvij Bhavsar. 2024-02-20. Comment on a no-go theorem for $\psi$-ontic models. https://arxiv.org/abs/2402.13140

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