Interesting...

[David Farber <farber () tmail com>]

-----Original Message-----
From: Jonathan M. Smith <jms () central cis upenn edu>
To: farber () central cis upenn edu
CC: akmed () voicenet com
Subject: Interesting...
Date: Thu, 30 Jan 2003 11:15:04 EST



LIGHT PARTICLES ARE DUPLICATED MORE THAN A MILE AWAY ALONG FIBER
from The New York Times

Employing a facet of quantum mechanics that Albert Einstein called 
"spooky
action at a distance," scientists have taken particles of light, 
destroyed
them and then resurrected copies more than a mile away.

Previous experiments in so-called quantum teleportation moved particles 
of
light about a yard. The findings could aid the sending of unbreakable 
coded
messages, which is limited to a few tens of miles.

The new experiment used longer wavelengths of light than earlier ones,
letting the scientists copy the light through standard glass fiber found 
in
fiber optic cables.
<http://www.nytimes.com/2003/01/30/science/30TELE.html>


D
-- Dave

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