Quantum communication is proven to be the only unconditionally secure method for information exchange, which could well be the first commercial application of quantum information science. Compared with fiber-based demonstrations, free-space links could provide a more promising approach because photon loss and decoherence are almost negligible in the atmosphere. Furthermore, by using satellites, ultra-long-distance quantum communication and tests of quantum foundations could be achieved on a global scale. Here we report a serial of recent experimental progresses on free-space quantum communication over long distance in the Qinghai Lake area. In the meantime, besides the experimental efforts on the ground, Chinese Quantum Science Satellite has been launched on August 16th 2016. And we will introduce the latest achievements in satellite-based quantum communication and large-scale tests of quantum foundations obtained through Micius.
Space-based quantum communication towards global quantum network
2017-11-01
427811 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Free-space quantum cryptography with quantum and telecom communication channels
Online Contents | 2008
|Free-space quantum cryptography with quantum and telecom communication channels
Online Contents | 2008
|