space@ucbvax.UUCP (12/05/85)
There is a slightly less exotic way to send signals in 0 time. It was described in the excellent book "In Search of Schrodinger's Cat". It goes something like this: If you get some liquid helium in the right state (temperature), it reacts like a single quantum particle, so any disturbance is instantly felt by the whole pool of helium. This has been tried with a very small drop of helium, but big enough to show that it works. It has been suggested that future applications might be in computers, where the quantum particle could be stretched into a thin line to act as an infinite-speed bus! Weird stuff!