On July 11, Japan's Information and Communication Research Agency announced the first successful quantum communication experiment with very small satellites, which the agency said will make a big leap forward in the study of ultra-long-range, high-security satellite communications networks. The Japan Information and Communication Research Agency said they conducted a quantum communication experiment using a small satellite called SOCRATES, successfully conducting photon information transfer between the satellite and a ground station in the city of Koganei in Tokyo.
The SOCRATES satellite, which weighs only 50 kilograms, carries a small quantum communication transmission weighing 6 kilograms and moves at a speed of 7 kilometers per second on a 600-kilometer high orbit at a rate of 10 million bits per second to the ground Station sends optical signal. The ground station receives the photons one by one and restores the signal.
Japan's ICT research agency said the study shows that quantum communications, which previously required large satellites, can now be implemented with smaller, lower-cost satellites, with more research institutions and businesses expected to be involved in the quantum communications industry in the future. Contribute to the further development of the space industry.
Related research results have been published in the British "Nature · Photonics" monthly online version.
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