Chinese team breaks distance record for quantum secure direct communication
A team of researchers at Tsinghua University in China, has broken the distance record for quantum secure direct communication (QSDC) by sending information using their protocol a distance of 102.2 km. In their paper published in the journal Light: Science and Applications, the group describes how they devised a new QSDC protocol and used it to send secure signals over a fiber cable to extend the distance such messages could be sent.
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