this post was submitted on 05 Feb 2026
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China achieves tamper-proof quantum communication over 100km with single atoms (www.scmp.com)
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Chinese researchers have pushed the frontiers of quantum encryption, demonstrating a powerful new way to send secure information over more than 100km (62 miles) of optical fibre – without having to trust the equipment being used. A team led by Pan Jianwei at the University of Science and Technology of China used a pair of individual rubidium atoms, trapped in laser beams at two separate network nodes, as the foundation for their system, according to a paper published in Science this week. The...

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