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Politics : President Barack Obama -- Ignore unavailable to you. Want to Upgrade?


To: koan who wrote (24759)6/26/2008 12:15:59 PM
From: RetiredNow  Respond to of 149317
 
Quantum encryption has to do a collapse of the quantum wave action. If you do anything at all to somehing with quantum encryption , have any interaction, even trying to measure quantum encryption, it will collapse the quantum wave action and shut it down.

So this is exactly my point. If you even try to observe the quantum entangled pair, this perturbation can be detected. At this point, the communication can be aborted. That is why it is possible to make quantum communication completely secure.

Check out this quote:
"So it is possible to encode information into quantum properties of a photon in such a way that any effort to monitor them disturbs them in some detectable way. The effect arises because in quantum theory, certain pairs of physical properties are complementary in the sense that measuring one property necessarily disturbs the other. This statement is known as the Heisenberg uncertainty principle."
en.wikipedia.org

Anyway, we'd better take this to private messages. Otherwise, Chinu is going to get mad at us, not to mention the other Obamacans. :)