China’s orbiting quantum satellite links with ground stationsPosted: September 26, 2016
SCMP says in its report on September 24 that the world first quantum satellite launched by China in August has satisfactorily established a quantum channel between the satellite and ground stations according to Pan Jianwei, China’s leader expert in quantum physics.
Initial results from the satellite is encouraging as Pan’s team had successfully passed photons, or particles of light, between the satellite and ground stations in Tibet and Xinjiang autonomous regions.
SCMP says, “The plan is to eventually send a quantum cryptographic key via the satellite from Beijing to Vienna to demonstrate that the technology can be used for unhackable communication.”
However, there are still lots of challenges such as preventing photon signals from getting lost in the atmosphere and protecting photons from the interference of daylight.
Source: SCMP “China’s orbiting quantum satellite links with ground stations”, full text of which can be found at http://www.scmp.com/news/china/policies-politics/article/2022320/chinas-orbiting-quantum-satellite-links-ground-stations.