2015年06月15日

The world's first quantum communication security Shinkansen "the Beijing-Shanghai route," will be completed in 2016

According to CCTV news network, said the world's first quantum communication security trunk by the Chinese Academy of Sciences, Vice-Chancellor, University of Science and Technology of China Pan Jianwei and led the team to start building in 2013 - "the Beijing-Shanghai route," will be completed after 2016 .

It is understood that quantum communication is the use of quantum entanglement effect of information transfer of a new means of communication, is a new interdisciplinary developed nearly two decades, a new research field of quantum theory and information theory combination.

As early as the summer of 2006, professor at the University of Science and Technology of China Pan Jianwei team, the Los Alamos National Laboratory, the University of Munich Europe - Vienna University of joint research teams have independently realized the decoy state programs, while achieving over 100 km of decoy state Quantum key distribution experiment, thereby opening the door to quantum communication applications.

By the end of 2008, Pan Jianwei research team successfully developed a prototype system based on fiber-optic communications decoy quantum states, in Hefei successfully established the world's first 3-node linear optical quantum telephone network, an international report on the absolute security of practical quantum communication network Experimental study of one of the two teams (the other team for the European joint experiment team).

September 2009, Pan Jianwei is the research team on the basis of a 3-node linear optical quantum telephone network, the completion of the world's first all-pass type of quantum communication network, the first time the real-time voice quantum cryptography. This achievement among the international advanced level of similar products, marking the Chinese in the metropolitan quantum key network technologies have reached the industrial requirements.

All pass type of quantum communication and quantum communication network is a star network a 5-node quantum signals to overcome the instability in the commercial fiber optic transmission technology is practical quantum cryptography major technical hurdles, the first time between any two users simultaneously communication, independently of each other. The distance between network users up to 20 kilometers, can cover a medium-sized city; accommodate the interconnection and trusted relay two important quantum communications networking, and to achieve the higher level to the lower level users communicate user authorization management.

The results of the first comprehensive presentation and test the quantum communication system network and the ability to scale, marking the massively scalable quantum communication network technology matures, the practical quantum communication and industrialization process and a big step forward.
posted by Alang at 14:55| Comment(0) | communication | 更新情報をチェックする
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