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China team achieves record 420km atom entanglement distance

A team in China has significantly advanced atom entanglement, achieving a record distance of 420km using rubidium atoms. This breakthrough, published in Physical Review Letters, quadruples previous entanglement distances and surpasses fundamental physical limits for direct transmission. The research utilized two quantum memory units connected by optical fiber, aiming to create a foundation for scalable quantum communications and computing. AI

RANK_REASON Publication of a scientific paper detailing a research breakthrough. [lever_c_demoted from research: ic=1 ai=0.1]

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China team achieves record 420km atom entanglement distance

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COVERAGE [1]

  1. SCMP — Tech TIER_1 English(EN) · Dannie Peng ·

    Miles ahead: China team boosts atom entanglement distance record fourfold

    Chinese scientists have achieved the quantum entanglement of cold atoms across a record-breaking 420km (260 miles), a breakthrough they say lays the groundwork for intercity quantum networks. According to a paper published by the peer-reviewed journal Physical Review Letters on A…