China mass producing next-gen quantum radar detector to track stealth aircraft like F-22

China announced it has begun mass producing the world’s first ultra-low noise, single-photon detector featuring four channels, suggesting that powerful applications loom in everything from daily communications to national defence.

Dubbed the “photon catcher”, the device can detect a single photon – the smallest unit of energy – making it a core component in cutting-edge technologies such as quantum communication and quantum radar for stealth aircraft detection and tracking.