A team of Chinese scientists has demonstrated satellite-based entangled photon pair distribution to two places 1,200km apart on earth, making cryptographic quantum key distribution over that range possible. The experiment used two satellite-to-ground down-links with a summed length varying from 1,600 to 2,400km. “So far, entanglement distribution has only been achieved at a distance up ...
Read full article: Chinese send entangled photons 1,200km
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