Unjammable aircraft detection using quantum mechanics
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Researchers from the University of Rochester in New York have demonstrated an aircraft detection system that is unjammable.
By using polarized photons to detect and image objects, any attempt to modify the photons will alter its quantum properties. The system can then detect the altered quantum state of the photons.
In as much as there are only four quantum numbers that differentiate a particular photon -- and without more details -- this seems pretty easy to defeat. My guess is they want to be at the head of the line for research money when seuqestration begins, and this is a typical BI story: short on details and wrong on facts.
The Business Insider article is indeed godawful.
The MIT article is, obviously, much better:
And of course the actual scientific paper is better than that:
http://arxiv.org/pdf/1212.2605v1.pdf
The Business Insider idiot fundamentally misunderstood pretty much everything about the research; it basically has NOTHING TO DO with defeatubg “passive” stealth (shaping and materials to reduce a radar return) which is the key to the B-2, F-22, F-35, etc. All it concerns is defeating one particular type of “active” jamming, which is what non-stealthy aircraft, missiles, etc. often employ.