well the way i understood it (please correct me if i'm wrong) that when you alter the state of a quantum entangled particle the other particle changes at the same instant no matter the distance between them, although the only place that i have ever head of the experiments being done was on earth so no real distance to measure the speed of the interaction even if it was on the other side of the planet.
But isn't it only quantum information that gets to be transmitted between entangled particles, which isn't really usable for regular communication, and which cannot be "set" by anyone anyway? BTW, I'm really asking. I'd like to know how this stuff works - I'm also wondering about similar stuff in this thread
. (Oops, there comes the scavenger hunt again!
Also, just in case there's a way to use quantum entanglement for communication - is there a way to keep entangled particles stable and in one place for prolonged periods (like years)? What about in a container that can be moved? It would be necessary for any sort of practical application. That seems tricky but theoretically possible to me, don't know about keeping the QE link stable though.