China's 100-channel single-photon detector could enable broadband quantum internet

Chinese scientists have developed a 100-channel single-photon detector, a breakthrough that could pave the way for broadband quantum networks. Previously, state-of-the-art detectors supported a maximum of 32 channels. The new interconnect scheme developed by a Shanghai-based team supports over 100 channels while maintaining accuracy. Separately, researchers in China have reportedly begun mass-producing an ultra-low-noise, four-channel single-photon detector, dubbed the "photon catcher." This device is described as a core component for quantum radar systems, potentially enabling the detection of stealth aircraft. The detector is said to be resistant to electronic warfare interference. While claims suggest this development could challenge stealth capabilities, independent verification of its performance in real-world conditions is pending.