I'm guessing the answer is no ;) but figured I'd ask anyway. Suppose I have one partner in an entangled pair and my friend on Alpha C has the other. I measure an observable (spin?) and the wave function collapses to a single eigenvalue. Does this cause the wave function for that observable to collapse for the remote partner, and if so, can the wave function collapse event itself be used as a superluminal signal? I assume the answer is no simply because he can't tell if the wave function has collapsed without making a measurement . . . which would cause the wave function to collapse. The whole idea falls apart if wave function collapse per se is not something that can be observed directly but is only inferred from measurement, I suppose.
There is no communication because the sender has no way of influencing the eigenvalue i.e. they can influence the collapse, but they cannot influence the subsequent state of "our" entangled particle, and this not the state of the particle on Alpha C