{"id":593010,"date":"2026-08-14T12:28:09","date_gmt":"2026-08-14T12:28:09","guid":{"rendered":"https:\/\/www.newsbeep.com\/ie\/593010\/"},"modified":"2026-08-14T12:28:09","modified_gmt":"2026-08-14T12:28:09","slug":"miles-ahead-china-team-boosts-atom-entanglement-distance-record-fourfold","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ie\/593010\/","title":{"rendered":"Miles ahead: China team boosts atom entanglement distance record fourfold"},"content":{"rendered":"

Chinese scientists<\/a> have achieved the quantum<\/a> entanglement of cold atoms across a record-breaking 420km (260 miles), a breakthrough they say lays the groundwork for intercity quantum networks.<\/p>\n

According to a paper published by the peer-reviewed journal Physical Review Letters on August 11, the distance was more than four times previous demonstrations and exceeded the threshold at which direct transmission encounters fundamental physical limits.<\/p>\n

\u201cOur experiment provides a test bed for studying quantum-network applications beyond the metropolitan scale,\u201d said the team of physicists, who included Pan Jianwei<\/a> from the University of Science and Technology of China in Hefei, Anhui province.<\/p>\n

The researchers used two quantum memory units, each consisting of laser-cooled clouds of rubidium atoms, 420km apart and connected by an optical fibre link.<\/p>\n

The aim was to achieve entanglement \u2013 the phenomenon in which two or more particles \u2013 often photons \u2013 become inextricably linked, sharing a joint quantum state regardless of the physical distance between them.<\/p>\n

Space computing: what is it, why move computing into orbit and where does China stand?<\/p>\n

While scientists have previously succeeded in entangling light particles across vast stretches of empty space and through optical fibre, introducing quantum memory into the equation makes the process more complex.<\/p>\n","protected":false},"excerpt":{"rendered":"Chinese scientists have achieved the quantum entanglement of cold atoms across a record-breaking 420km (260 miles), a breakthrough…\n","protected":false},"author":2,"featured_media":593011,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[36751,114,30551,250685,4479,61,60,91541,16203,78713,19178,106801,30295,250684,82,250683,25545],"class_list":["post-593010","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science","tag-anhui-province","tag-china","tag-chinese-scientists","tag-dark-matters","tag-hefei","tag-ie","tag-ireland","tag-pan-jianwei","tag-physical-review-letters","tag-quantum-encryption","tag-quantum-entanglement","tag-quantum-memory","tag-quantum-networks","tag-rubidium-atoms","tag-science","tag-signal-loss","tag-university-of-science-and-technology-of-china"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/593010","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/comments?post=593010"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/593010\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media\/593011"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media?parent=593010"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/categories?post=593010"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/tags?post=593010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}