国产精品99一区二区三_免费中文日韩_国产在线精品一区二区_日本成人手机在线

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
主站蜘蛛池模板: 盈江县| 密云县| 临洮县| 攀枝花市| 临桂县| 工布江达县| 龙川县| 柘城县| 平顺县| 沅陵县| 宣化县| 尚义县| 铁力市| 靖边县| 宿松县| 靖西县| 乌海市| 自贡市| 高邑县| 连州市| 乌鲁木齐市| 南宁市| 玉溪市| 马公市| 太原市| 漳州市| 泸溪县| 桐柏县| 惠安县| 湘乡市| 松潘县| 揭东县| 武平县| 彰化县| 涞水县| 永平县| 营口市| 红河县| 柯坪县| 随州市| 白城市|