Ontological Models in Quantum Mechanics: What do they tell us?
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چکیده
The consequences of the theorems about ontological models are studied. Maximally ψ-epistemic is shown to be equivalent to the conjunction of two other conditions, each of which can be realized in Hilbert spaces of arbitrary dimension, but which cannot occur together for d > 2. I argue that current theorems do not invalidate an epistemic interpretation of quantum states. A new condition, called functionally ψ-epistemic, is introduced, which, were it to be excluded, would signal the exclusion of epistemic interpretations.
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