Why (experimentally) is a set of quantons prepared in a superposition of a given observable's eigenvectors different from a classical mixture of quantons that have "already collapsed" to the different eigenvectors (with the same probabilities as predicted by the superposition)?
A) We can (in appropriate circumstances) show that the superposition is an eigenvector of some other observable, but this is not possible for a mixture.
B) We can construct situations where quantons in the superposition state exhibit interference effects that cannot be observed for a mixture.
C) Both A and B.
D) Neither A nor B (explain).

Question

Quizplus · Accepted Answer

Superpositions allow for interference effects and can be eigenvectors of other observables, distinguishing them from classical mixtures.

Why (Experimentally) Is a Set of Quantons Prepared in a Superposition