Progress in quantum network
Chinese scientists have created the world's first integrated space-to-ground quantum network that can provide reliable, ultrasecure communication between more than 150 users over a total distance of 4,600 kilometers across the country, according to a study published in the journal Nature on Jan 7.
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.
Reviewers of the study hailed the achievement as "impressive" and "futuristic", as it is the largest of its kind in the world. It also represents a major step toward building a practical, large-scale quantum internet, they added.
In the quantum network, several services such as video call, audio call, fax, text transmission and file transmission have been realized for technological verification and real-world demonstrations, the paper noted, adding commercial use is expected in the near future.