IP: Teleporting larger objects becomes real possibility

[David Farber <dave () farber net>]

> X-Sender: stef () nma com
> Date: Mon, 11 Feb 2002 19:35:52 -0800
> To: Dave Farber <farber () cis upenn edu>, Ed Gerck <egerck () nma com>
> From: Jim McHugh <Jim_McHugh () mac com> (by way of Einar Stefferud)
>
> Fictional Facts?  ...\Stef
>
> New Scientist - 19:00 06 February 02
>
> Teleporting larger objects becomes real possibility
>
> by Anil Ananthaswamy
>
> The dream of teleporting atoms and molecules - and maybe even larger objects
> - has become a real possibility for the first time. The advance is thanks to
> physicists who have suggested a method that in theory could be used to
> "entangle" absolutely any kind of particle.
>
> Quantum entanglement is the bizarre property that allows two particles to
> behave as one, no matter how far apart they are. If you measure the state of
> one particle, you instantly determine the state of the other. This could one
> day allow us to teleport objects by transferring their properties instantly
> from one place to another.
>
> Until now, physicists have only been able to entangle photons, electrons and
> atoms, using different methods in each case. For instance, atoms are
> entangled by forcing them to interact inside an optical trap, while photons
> are made to interact with a crystal.
>
> "These schemes are very specific," says Sougato Bose of the University of
> Oxford. But Bose and Dipankar Home, of the Bose Institute in Calcutta, have
> now demonstrated a single mechanism that could be used to entangle any
> particles, even atoms or large molecules.
>
>
> Beam splitter
>
> To see how it works, consider the angular momentum or "spin" of an electron.
> To entangle the spins of two electrons, you first need to make sure they're
> identical in all respects but their spin. . . . <snip>
> © Copyright Reed Business Information Ltd.
> http://www.newscientist.com/news/news.jsp?id=ns99991888

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