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I read today that the Chinese are claiming that they have a working quantum radar. It's supposed to be unlikely, but whenever this tech finally materializes? It
by DanielBMarkham 10y ago
I read today that the Chinese are claiming that they have a working quantum radar. It's supposed to be unlikely, but whenever this tech finally materializes? It'll effectively be the end of stealth. Western countries will have mutli-trillion-dollar aviation programs that will overnight become vehicles for producing jets with no-so-great flying capabilities (in relation to the amount of money they're spending)
http://seekingalpha.com/article/4008192-chinese-quantum-radar-may-derail-lockheeds-fminus-35-project http://seekingalpha.com/article/4008192-chinese-quantum-rada...
- gus_massa 10y agoI'm very skeptical of this. It's theoretically possible to send entangled photons, and try to capture them when they bounce, but in open air, with a moving target and against a big background radiation this looks fishy. The important detail is how much better is this than a normal radar. A 1000% better? 10% better? 0.0001% better? Did you find any number of the improved efficiency in the paper? (Do they have a working prototype? I'd be happy if they have a laboratory prototype that can measure an object 10 feet apart, in a room with an open window.)
- DanielBMarkham 10y agoLayman here. Looks like this was announced as a possibility and then a lot of the players went dark on it. As I understand, there is a laboratory effect that can be measured. But that's a long way from a working system. The background cosmic radiation also seems to play a role. Probably some interesting statistics going on in addition to the entangled photons?