{"id":780938,"date":"2026-09-24T10:00:10","date_gmt":"2026-09-24T10:00:10","guid":{"rendered":"https:\/\/www.newsbeep.com\/uk\/780938\/"},"modified":"2026-09-24T10:00:10","modified_gmt":"2026-09-24T10:00:10","slug":"what-can-cutting-a-photon-in-half-tell-us-about-causality-and-local-equivalence-physics-world","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/uk\/780938\/","title":{"rendered":"What can cutting a photon in half tell us about causality and local equivalence? \u2013 Physics World"},"content":{"rendered":"<p>\tWhat can cutting a photon in half tell us about causality and local equivalence? \u2013 Physics World<\/p>\n<p>    <a class=\"link__skip-to-content\" href=\"#main-content\">Skip to main content<\/a><\/p>\n<p>\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/physicsworld.com\/wp-content\/uploads\/2025\/09\/category-icon-quantum-orange.svg\" alt=\"Quantum optics\" loading=\"lazy\"\/><\/p>\n<p>\n\t\tDiscover more from Physics World\n<\/p>\n<p>Copyright \u00a9 2026 by IOP Publishing Ltd and individual contributors<\/p>\n","protected":false},"excerpt":{"rendered":"What can cutting a photon in half tell us about causality and local equivalence? \u2013 Physics World Skip&hellip;\n","protected":false},"author":2,"featured_media":780939,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[2302,90,56,54,55],"class_list":["post-780938","post","type-post","status-publish","format-standard","has-post-thumbnail","category-physics","tag-physics","tag-science","tag-uk","tag-united-kingdom","tag-unitedkingdom"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/780938","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/comments?post=780938"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/780938\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media\/780939"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media?parent=780938"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/categories?post=780938"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/tags?post=780938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}