Quantum-based networks have been proposed as the next innovation for both speeding up and sending more information through communications networks-to that end, teams in countries such as Japan, the U.S. and China have been working hard to better understand how to actually create them. Most in the field agree that national, international and global quantum networks will require data to be sent at least partially via satellites because traditional media such as fiber cable results in too much interference and data loss. Quantum networks are also theorized to be hack-proof because observing the keys that are used to unlock the data would destroy them due to their quantum nature. In this new effort, the two research teams have fulfilled the second and third goals (the first was to break the distance record for sending entangled particles and was achieved this past June) outlined by officials directing that country’s Quantum Experiments at Space Scale project, which involves making use of the Micius satellite-the first sent aloft to conduct quantum networking experiments.
https://phys.org/news/2017-08-chinese-team-quantum-keys-ground.html
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