A Chinese firm has claimed to successfully developed a quantum radar which could detect stealth fighter jets from great distances.

The mobile quantum radar is able to spot and track targets more than 100 kilometres (62 miles) away in the daylight and over the sea, according to Chinese media.

The cutting-edge equipment is expected to be a powerful weapon against U.S. stealth warplanes, such as the F-22 Raptor and the F-35 Lightning.

Stealth craft are equipped with systems to 'jam' detectors with artificial noise, in addition to using special paint and designs to thwart detection by radio waves. 

A quantum radar can spot objects that are invisible to traditional radio wave-based systems by a principle called quantum entanglement, in which two photons form a connected pair even over great distances. 

The system would send out one of the photons, while the other in the pair would stay behind.

According to the researchers, it could vastly improve the accuracy in environments with a lot of background noise.

Their claim sounds suspect. To read more, click here.