[Batman]

[quote]Originally posted by AeoN2:

Originally posted by Batman:
I seem to remember a theory that may make it possible for information (not matter) to travel faster than light.

You're talking about the EPR paradox (stands for Einstein-Podolsky(sp?)-Rosen).

Sometimes when a pair of particles are created, they have properties that depend upon one another. For example, spin is conserved, so if a particle with zero spin decomposes and sends two smaller particles off in opposite directions, the total spin of the situation still has to be zero. Therefore, one particle has spin "up" and the other has spin "down". From a quantum mechanical perspective, each of the two particles (let's call them left and right) has an equal chance of being the up particle. Now if I know a particle decomposed in this manner say, a light year away, and the left particle comes towards me and the right particle moves away, then they are both in a 'superposition' of the spin up and spin down states. It isn't until I measure or observe 'left' that it collapses into one of the two states (up or down).

Now, the paradox comes from the fact that the instant I observe left, right must also become fixed into the opposite state that I observe. So, supposedly, it must have "heard" what state left was in. Since this happens instantaenously, the information is transmitted from one particle to the other an infinite velocity.

Its worth noting that this scenario was put forward by Einstein, Podolsky and Rosen as a reason that quantum mechanics is nonsense.

This might not be 100% accurate, I'd have to get home and check some of my textbooks. Even if it is accurate, it probably isn't very well explained. Go to google +epr +paradox -"Star Trek Voyager"