China realizes secure, stable quantum communication network spanning 4,600 km

HEFEI, Jan. 7 (Xinhua) -- Chinese scientists have set up an integrated quantum network that combines 700 fiber and two ground-to-satellite links and realized quantum key distribution between more than 150 users over a combined distance of 4,600 km.

Led by Pan Jianwei from the University of Science and Technology of China, the research was conducted by a group of scientists over the past few years. The research paper has been published in the journal Nature online.