Answer to Question #6544 in Mechanics | Relativity for Don Alford

Question

I am trying to understand how quantum entanglement based communication affects the passage of time under relativity. the question is as follows:

George and Gracie are travelling toward each in identical vessels travelling at 335,000,000 mph. The vessels are equipped with quantum communication devices utilizing entangled pairs. After they pass each other they travel for 10 hours under their own clock and report the time to each other. What does each person say about the passage of time for the other vessel? Is it faster, slower or the same?