8. Quantum communication "walks from the ideal kingdom to the realm of reality" On January 18, 2017, the world's first quantum science experimental satellite "Mozi" developed by China was officially delivered after four months of on-orbit testing. On June 16, 2017, the team led by Pan Jianwei and Peng Chengzhi of the University of Science and Technology of China announced that the “Mozi No.” was the first in the world to successfully realize the two-dimensional quantum entanglement distribution of stars and kilometers. The quantum mechanical non-locality test which strictly satisfies the "Einstein locality condition" at the spatial scale is realized. The world's first quantum security communication trunk line - "Beijing-Shanghai trunk line" officially opened on September 29. Combined with the "Mozi" satellite, Chinese scientists have successfully achieved the world's first intercontinental quantum security communication with Austria. The "Mozi No." has successfully achieved the three