{"id":221196,"date":"2025-08-30T04:17:28","date_gmt":"2025-08-30T09:17:28","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/08\/probability-theorem-gets-quantum-makeover-after-250-years"},"modified":"2025-08-30T04:17:28","modified_gmt":"2025-08-30T09:17:28","slug":"probability-theorem-gets-quantum-makeover-after-250-years","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/08\/probability-theorem-gets-quantum-makeover-after-250-years","title":{"rendered":"Probability theorem gets quantum makeover after 250 years"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/probability-theorem-gets-quantum-makeover-after-250-years.jpg\"><\/a><\/p>\n<p>How likely you think something is to happen depends on what you already believe about the circumstances. That is the simple concept behind Bayes\u2019 rule, an approach to calculating probabilities, first proposed in 1763. Now, an international team of researchers has shown how Bayes\u2019 rule operates in the quantum world.<\/p>\n<p>\u201cI would say it is a breakthrough in <a href=\"https:\/\/phys.org\/tags\/mathematical+physics\/\" rel=\"tag\" class=\"\">mathematical physics<\/a>,\u201d said Professor Valerio Scarani, Deputy Director and Principal Investigator at the Center for Quantum Technologies, and member of the team. His co-authors on the work published on 28 August 2025 in <a href=\"https:\/\/journals.aps.org\/prl\/abstract\/10.1103\/5n4p-bxhm\" target=\"_blank\"><i>Physical Review Letters<\/i><\/a> are Assistant Professor Ge Bai at the Hong Kong University of Science and Technology in China, and Professor Francesco Buscemi at Nagoya University in Japan.<\/p>\n<p>\u201cBayes\u2019 rule has been helping us make smarter guesses for 250 years. Now we have taught it some quantum tricks,\u201d said Prof Buscemi.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>How likely you think something is to happen depends on what you already believe about the circumstances. That is the simple concept behind Bayes\u2019 rule, an approach to calculating probabilities, first proposed in 1763. Now, an international team of researchers has shown how Bayes\u2019 rule operates in the quantum world. \u201cI would say it is [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32,2229,1617],"tags":[],"class_list":["post-221196","post","type-post","status-publish","format-standard","hentry","category-education","category-mathematics","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/221196","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=221196"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/221196\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=221196"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=221196"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=221196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}