You've heard of stealth aircraft—now meet stealth radar.
Austrian researchers at the Institute of Science and Technology in Klosterneuburg, demonstrate new high-def stealth radar system
I dont know, whether the above sources are reliable, or not, that is why i ask.
"Quantum radars involve pairing photon particles together, shooting one downrange while keeping the second captive for observation. The downrange particle will act in a certain manner as it bounces off certain objects, behavior that can be observed in the captive particle. The result is much more detailed information about the target than seen in previous radars. "
This is from the first article. What makes it really fantastic for me, that as far as i know, we cant use quantum entanglement for FTL signalling, since the effect is unobservable directly, we can be only sure what happened, when we compare results of the endpoints of entanglement.
But the above part implicates for me, that actually there is a way to observe something has happened to the entangled pair, with only a measurement of the emitter.
Quantum communication is a strange beast, but one of the weirdest proposed forms of it is called counterfactual communication - a type of quantum communication where no particles travel between two recipients.
That third link also about that possibility, if i understand correctly.
Of course i can totally misunderstand theese parts, but in this case, what makes that quantum radar and imaging any superior to existing methods?