archive: RE: SETI ETI Quantum Communication

RE: SETI ETI Quantum Communication

R.J. Fear ( (no email) )
Fri, 30 Oct 1998 10:35:15


I tend to agree with you. And, unless someone has designed and built some
type of Heisenberg Compensator the prospect is a little on the scary side.


At 08:14 AM 10/30/98 -0700, Troy Taylor <> wrote:
>Once again, someone stuff me back in my place here if I am wrong, BUT...
>I believe that this "quantum teleportation" would not transmitt any faster
>or farther than normal RF communications. Light is just another form of
>radiation. It travels through a medium at the speed of light for that
>medium. The method used to transfer the information for the object (its
>properties) was a laser. Thus, the limitations of the range and speed for
>transfering that object are those of the laser (light).
>The article stated, "Quantum teleportation allows information to be
>transmitted at the speed of light -- the fastest speed possible -- without
>being slowed down by wires or cables."
>Their point isn't that this will allow us to communicate faster, but rather
>that it might allow us to transmit the properties of an object at the speed
>of light from one location to the other. But the limitations are still on
>the method of the transportation. I.E. They used a laser to send the
>information from one location to another. To quote: "They used these two
>entangled beams to carry information about the quantum state of a third
>beam. The first two beams were destroyed in the process, but the third
>successfully transmitted its properties over a distance of about a yard
>Thus, the quantum side of things just affects WHAT kinds of things we can
>send (I.E. perhaps a physical object) but not HOW fast or far we can send
>those things. Make sense?
>Another thing that disquieted me was the following from the IBM article: "it
>would produce an exact copy rather than an approximate facsimile, and it
>would destroy the original in the process of scanning it." I don't think I
>like the destroy part! heheheh. But hey, that's your typical teleportation
>requirement, right?
>Troy D. Taylor

---------- if you're forwarding.... feel free to snip here ---------------

Robert J. (R.J.) Fear North Central Regional Coordinator
President The SETI League Inc.
Topia Inc. ND, SD, NE, MN, IA, WI, IL, MI, and IN
Adaptive Design and Development Corp. Project Argus Station ID: EN70en
225 North Boots Street
Marion Indiana 46952 USA
voice (765) 668-4198 fax (765) 668-4197
email: ICQ #: 111461

"If we don't know where we're going how will we know when we're there?"