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An ambitious quantum entanglement experiment launched aboard China’s Quantum Science Experiment Satellite last year has proven to be a success, having successfully transmitted pairs of entangled photons to two facilities on the ground 750 miles apart. The success of this experiment means that the quantum-based encryption of long-distance transmitted information will be possible using satellites of this nature.
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On August 1, China launched their Quantum Experiments at Space Scale (QUESS) satellite from the Jiuquan Satellite Launch Center in the Gobi Desert. This satellite, a joint Austrian-Chinese collaboration, is intended to facilitate long-distance experiments in quantum optics, to allow the development of secure quantum-encryption communications and quantum information teleportation technology. On August 19, Beijing’s control center successfully received 202 megabytes of data from the satellite, nicknamed Micius after the 5th century Chinese scholar, secured using quantum encryption keys.
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