As a result of China’s large investment in quantum technology, Chinese research teams have made strides in quantum communications, including a tenfold improvement in robust quantum-key distribution and real-time error correction systems. 

Chinese research teams have made significant breakthroughs in quantum communications with implications for computing and communications. One team achieved a tenfold increase in the rate of stable quantum-key distribution, enabling the handling of larger amounts of data and more users. Another team developed a real-time error correction system for quantum systems, improving stability and requiring fewer resources. China has been investing heavily in quantum technologies, spending an estimated $25 billion, and has made progress in areas like quantum computing and supercooled quantum processors. However, challenges remain, including difficulties in applying quantum cryptography and the existence of quantum-resistant algorithms. While these breakthroughs are significant, the full realization of quantum computing and communications is still a long way off. 

Source: https://www.defenseone.com/ideas/2023/05/d1-2023-geoint-conference-wire-day-2/386341/