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> in an interpretation where superpositions are less real than classical states What do you mean by “classical states”? In your example diagonally polarized p
by kgwgk 5y ago
> in an interpretation where superpositions are less real than classical states
What do you mean by “classical states”?
In your example diagonally polarized photons are not more “a superposition” than any other photon. For a pure state like that one being or not “a superposition” depends on the basis, it’s not a property of the state.
- Strilanc 5y agoIn this case the "classical state" would just be a preferred basis for the polarization. And basically what I'm saying is "If superpositions of polarizations aren't real, why is there such a natural way to change the basis so that any given polarization isn't in superposition?". Analogy: if simultaneity is absolute, why is it so easy to confuse people about what happened at the same time by changing my speed?
- kgwgk 5y agoI don’t see how does it relate with the interpretations of QM and QBism in particular. Superpositions are not “less real” than basis states (if such a distinction makes sense) within a theory (psi-epistemic or psi-ontological) as far as I understand.