{"id":142787,"date":"2022-07-24T16:03:42","date_gmt":"2022-07-24T21:03:42","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2022\/07\/reality-doesnt-exist-until-you-measure-it-quantum-parlor-trick-confirms"},"modified":"2022-07-24T16:03:42","modified_gmt":"2022-07-24T21:03:42","slug":"reality-doesnt-exist-until-you-measure-it-quantum-parlor-trick-confirms","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2022\/07\/reality-doesnt-exist-until-you-measure-it-quantum-parlor-trick-confirms","title":{"rendered":"Reality doesn\u2019t exist until you measure it, quantum parlor trick confirms"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/reality-doesnt-exist-until-you-measure-it-quantum-parlor-trick-confirms3.jpg\"><\/a><\/p>\n<p>\ud83d\ude33!!!<\/p>\n<hr>\n<p>The Moon isn\u2019t necessarily there if you don\u2019t look at it. So says quantum mechanics, which states that what exists depends on what you measure. Proving reality is like that usually involves the comparison of arcane probabilities, but physicists in China have made the point in a clearer way. They performed a matching game in which two players leverage quantum effects to win every time\u2014which they can\u2019t if measurements merely reveal reality as it already exists.<\/p>\n<p>\u201cTo my knowledge this is the simplest [scenario] in which this happens,\u201d says Adan Cabello, a theoretical physicist at the University of Seville who spelled out the game in 2001. Such quantum pseudotelepathy depends on correlations among particles that only exist in the quantum realm, says Anne Broadbent, a quantum information scientist at the University of Ottawa. \u201cWe\u2019re observing something that has no classical equivalent.\u201d<\/p>\n<p>A quantum particle can exist in two mutually exclusive conditions at once. For example, a photon can be polarized so that the electric field in it wriggles vertically, horizontally, or both ways at the same time\u2014at least until it\u2019s measured. The two-way state then collapses randomly to either vertical or horizontal. Crucially, no matter how the two-way state collapses, an observer can\u2019t assume the measurement merely reveals how the photon was already polarized. The polarization emerges only with the measurement.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\ude33!!! The Moon isn\u2019t necessarily there if you don\u2019t look at it. So says quantum mechanics, which states that what exists depends on what you measure. Proving reality is like that usually involves the comparison of arcane probabilities, but physicists in China have made the point in a clearer way. They performed a matching game [\u2026]<\/p>\n","protected":false},"author":513,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48,1617,8],"tags":[],"class_list":["post-142787","post","type-post","status-publish","format-standard","hentry","category-particle-physics","category-quantum-physics","category-space"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/142787","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\/513"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=142787"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/142787\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=142787"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=142787"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=142787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}