by Eureka Alert
When the military needs to send the key to encrypted data across the world, it can’t necessarily rely on today’s communication lines, where the message could be covertly intercepted. But physicists at the Georgia Institute of Technology in Atlanta are developing a new, more secure way to send such information across far distances, using existing cables and the laws of quantum mechanics. Alex Kuzmich and colleagues have built a critical component of a quantum repeater, a device that allows quantum communications — such as the encryption keys used to encode data transmitted over traditional lines — to be relayed over larger distances.
http://www.eurekalert.org/pub_releases/2010-10/osoa-ldt101910.php
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