Hello Frank! Have you seen this experiment:
http://en.wikipedia.org/wiki/Delayed_choice_quantum_eraser Even if the math can be explained with classical equations, I don't see how a classical explanation can be forthcoming by analyzing the experiment through the Transitional Quantum State. Photons are split, then the counter-part photon is observed. If the observed counter-part went through one of the two slits, then there is no interference pattern from the primary photon, hitting a detector in another area. If the observed counter-part takes a path that is not observed, then there is an interference pattern from the primary photon. Craig > > >
