中文幕亚洲精品乱码色偷偷亚_国产午夜性爽视频男人的天堂_欧美高潮流白浆喷水在线观看_亚洲夜色久一久二亚洲琪琪卡一卡二_暖暖亚洲一区二区三区AV无码

China's "Micius" completes intercontinental quantum key distribution

Source: Xinhua| 2018-01-22 16:50:06|Editor: Lu Hui
Video PlayerClose

Photo taken on Nov. 26, 2016 shows a quantum communication ground station in Xinglong, north China's Hebei Province. Chinese scientists on Thursday reported a major breakthrough in quantum communication: A pair of entangled photons over a distance of 1,200 km have been successfully transmitted from space to Earth. The previous record was about 100 km. (Xinhua/Jin Liwang)

HEFEI, Jan. 22 (Xinhua) -- China's quantum satellite "Micius" has allowed scientists to achieve quantum key distribution between China and Austria, laying a foundation for building a global quantum-secured communication network.

The achievement, jointly made by Chinese and Austrian scientists, was published on Jan. 19 in the journal Physical Review Letters. It demonstrates that the Chinese quantum satellite is capable of facilitating intercontinental quantum-secured communications.

Through satellite-to-ground secure key distribution, a secret key was created between the two countries at locations some 7,600 km away from each other.

During the experiment, scientists transmitted images between the two countries, and a 75-minute video conference was successfully held between Beijing and Vienna.

Traditional public key cryptography risks being hacked, while quantum key technology, used in quantum communication, eliminates the possibility of wiretapping and secures the communication.

The satellite -- Quantum Experiments at Space Scale (QUESS), nicknamed "Micius" after an ancient Chinese philosopher -- was launched on Aug. 16, 2016.

In 2017, Chinese scientists achieved quantum key distribution from the satellite to the ground, and quantum teleportation from the ground to the satellite, based on experiments with the Micius.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011102351369152041