Re: Planetary rovers, SETI and other musings, was Re: update.356(fwd)

At 10:42 PM -0600 1/27/98, Jim Choate wrote:

Forwarded message:

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Date: Tue, 27 Jan 1998 20:34:48 -0800 From: Tim May Subject: Re: Planetary rovers, SETI and other musings, was Re: update.356 (fwd)

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Nothing in quantum teleportation has been shown to propagate signals faster than light. (If you don't believe me, look into it. Start by reading the FTL discussions about Bell's Theorem.)

The actual transportation of the state is instantanious as it must be by quantum theory, just as the change in orbits of an electron occurs instantly. However, the catch is that the command/synchronization channel must be sent in parallel and it at some point can't use the quantum transportation technique and hence the speed-of-light comes back into play. This was specificaly discussed in the original quantum transportation announcement sent out by AIP.

I don't understand why a command/synch channel is required. Why aren't the coding techniques commonly used in telecom and disk data encoding adequate to both synchonize and convey data? --Steve