China makes breakthrough in quantum communications
August 16, 2017 Category Science & technology, Weekly
China has become the first country to send quantum keys – highly complex encryptions – from a satellite to a base station in Xinlong, Hebei province, and to teleport light particles the other way. The accomplishments are two major breakthroughs in the effort to create an unhackable global communications network. The two experiments mark the completion of the second and third of the three main goals of Micius, the world’s first quantum communications satellite, which China launched last year. The first goal, to send entangled light particles further than ever before, was achieved in June. Entanglement is a phenomenon in which two or more particles can affect each other simultaneously regardless of distance. Entangled particles cannot be described independently of each other. Bai Chunli, President of the Chinese Academy of Sciences (CAS), said China is now the world leader in quantum communication technologies and is working with scientists from Austria, Germany and Italy. He said Micius will continue to perform experiments until its expected service life expires next year. “The trio of quantum experiments will be central to any global space-based quantum internet,” Karl Ziemelis, Chief Physical Science Editor at Nature Magazine, said. China also plans to build the world’s first global quantum communication network by 2030, the China Daily reports.
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