When you transmit particles though matter, or bounce them off of a surface, do they keep their properties? I don't know much about particle physics, but I thought that when this happens, particles are being absorbed, and new particles emitted. i.e. light doesn't actually "bounce" off of a mirror, but the particle interactions within the surface of the matter that makes up the mirror give a result that makes the photon appear to bounce. If this is true, wouldn't slowing things down with fiber optic cable or mirrors break the experiment?
The situation I was wondering about it this:
Victor has been sent to a distant planet, and is supposed to relay information to earth. For simplicity sake, lets say it's a yes or no answer (this is a simplification with a single bit that could be extended to bigger messages).
The experiment described in the article is done many times in succession (lets say a million times) with Alice and Bob recording results, and victor choosing the same thing every iteration (he will entangle for all million attempts, or not for all million attempts). While Alice and Bob cannot communicate directly with Victor to see whether he has entangled or not, the first handful of observations that they make would be indistinguishable from randomness, but after several thousand iterations, wouldn't there be a significant statistical deviation towards correlation of Alice and Bob's results if Victor was entangling?
In this way, couldn't victor communicate with Alice and Bob instantaneously?
I am not sure, but I don't think there is a paradox as for Victor to have carried off the photon pair implies causal relationship.
Perhaps, this experiment is similar to one where you send the photons into the black box and can tell whether the entanglement have been destroyed or not, without anything coming out of the black box.
