Is the Statistical Interpretation of Quantum Mechanics ψ-Ontic or ψ-Epistemic?

Foundations of Physics 53 (16):1-23 (2023)
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The ontological models framework distinguishes ψ-ontic from ψ-epistemic wave- functions. It is, in general, quite straightforward to categorize the wave-function of a certain quantum theory. Nevertheless, there has been a debate about the ontological status of the wave-function in the statistical interpretation of quantum mechanics: is it ψ-epistemic and incomplete or ψ-ontic and complete? I will argue that the wave- function in this interpretation is best regarded as ψ-ontic and incomplete.

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Mario Hubert
American University in Cairo


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