RE: [escepticos] teleportacion replicada...

["Carlos Donis" <cardon@...>]

Hola, corrala,

Lo leí también en el Mundo y en correctísimo román paladino. Lo que ya no sé
es si eso es verdad o no, que a mí siempre me dieron insuficiente en física.
Aprovechando que Eloy está de vacaciones por las Seychelles, ¿no podría
Javier ilustrarnos un poquito a los retrasados escolares?

Taluego,

Carlos Donis

---------------------------------



-----Original Message-----
De: Planetario <planetario en cin.es>
Para: Lista Escepticos <escepticos en CCDIS.dis.ulpgc.es>
Fecha: martes 27 de octubre de 1998 10:03
Asunto: [escepticos] teleportacion replicada...


> DE Discovery Online...
>
>Star Trek Teleporting Replicated
>In an experiment straight out of "Star Trek," scientists have successfully
>teleported a beam of light across a laboratory bench.
>In case you're not a Trekkie, that means they transmitted information that
>allowed a replica of the beam to be made without sending the beam itself.
It
>represents an important step on the road to faster, more powerful
computers.
>"What's been teleported is the 'quantum state' of the light beam," says H.
>Jeff Kimble, physics professor at the California Institute of Technology,
>and a co-author of a paper on the experiment in the latest journal Science.
>Last year, scientists teleported a light particle, or photon, but this is
>the first time a light beam has been sent.
>In the subatomic quantum world, things exist in many possible states until
a
>measurement forces it to assume one specific value. So there's always some
>"fuzziness" about the properties of things. Like foam on top of an ocean
>wave, there is "quantum fuzz" on top of every wave of light. You can't
>recreate the "fuzz" on top of a light beam without knowing its quantum
>state.
>If you try to measure the quantum state, though, you change it, so you
can't
>learn enough about it to replicate the original state. The trick is to pass
>the quantum information along without explicitly measuring it.
>To do that, Kimble's group first generated a pair of what physicists call
>"entangled" light beams, two beams that are almost twins of one another.
>They sent one to a detector called Alice, and the other to one called Bob.
>The quantum fuzz of the entangled beams was so strong that it essentially
>hid that of a third light beam -- the one to be transported from Alice to
>Bob. Therefore, they never measured it and never disturbed its quantum
>state; they just passed it on.
>Quantum teleportation represents a new way to transfer information. "(This
>is) the birth of a new science, quantum information science," Kimble says.
>In the future, quantum computers will work much faster than today's
computer
>technology.
>"It's likely the Caltech experiment will lead to rapid progress," says
>Carlton Caves, from the University of New Mexico.
>But will we ever teleport people, like in Star Trek's transporter? "I don't
>know," Kimble admits. "But I think it's a remarkably interesting scientific
>question."
>By Sally Stephens, Discovery Online News
>
>
>-----------------------------------
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