{"id":192283,"date":"2024-07-03T18:26:19","date_gmt":"2024-07-03T23:26:19","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2024\/07\/neutrons-on-classically-inexplicable-paths-quantum-theory-prevails-in-leggett-garg-inequality-test"},"modified":"2024-07-03T18:26:19","modified_gmt":"2024-07-03T23:26:19","slug":"neutrons-on-classically-inexplicable-paths-quantum-theory-prevails-in-leggett-garg-inequality-test","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2024\/07\/neutrons-on-classically-inexplicable-paths-quantum-theory-prevails-in-leggett-garg-inequality-test","title":{"rendered":"Neutrons on classically inexplicable paths: Quantum theory prevails in Leggett-Garg inequality test"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/neutrons-on-classically-inexplicable-paths-quantum-theory-prevails-in-leggett-garg-inequality-test3.jpg\"><\/a><\/p>\n<p>Is nature really as strange as quantum theory says\u2014or are there simpler explanations? Neutron measurements at TU Wien prove that it doesn\u2019t work without the strange properties of quantum theory.<\/p>\n<p>Can a particle be in two different places at the same time? In quantum physics, it can: Quantum theory allows objects to be in different states at the same time\u2014or more precisely: in a <a href=\"https:\/\/phys.org\/tags\/superposition+state\/\" rel=\"tag\" class=\"\">superposition state<\/a>, combining different observable states. But is this really the case? Perhaps the particle is actually in a very specific state, at a very specific location, but we just don\u2019t know it?<\/p>\n<p>The question of whether the behavior of quantum objects could perhaps be described by a simple, more classical theory has been discussed for decades. In 1985, a way of measuring this was proposed: the so-called \u201cLeggett-Garg inequality.\u201d Any theory that describes our world without the strange superposition states of <a href=\"https:\/\/phys.org\/tags\/quantum+theory\/\" rel=\"tag\" class=\"\">quantum theory<\/a> must obey this inequality.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Is nature really as strange as quantum theory says\u2014or are there simpler explanations? Neutron measurements at TU Wien prove that it doesn\u2019t work without the strange properties of quantum theory. Can a particle be in two different places at the same time? In quantum physics, it can: Quantum theory allows objects to be in different [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48,1617],"tags":[],"class_list":["post-192283","post","type-post","status-publish","format-standard","hentry","category-particle-physics","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/192283","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=192283"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/192283\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=192283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=192283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=192283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}