{"id":250116,"date":"2021-05-14T23:41:38","date_gmt":"2021-05-14T20:41:38","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/this-quantum-paradox-will-make-you-question-reality\/"},"modified":"2021-05-14T23:41:38","modified_gmt":"2021-05-14T20:41:38","slug":"this-quantum-paradox-will-make-you-question-reality","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/this-quantum-paradox-will-make-you-question-reality\/","title":{"rendered":"#This quantum paradox will make you question reality"},"content":{"rendered":"

“#This quantum paradox will make you question reality<\/strong>”
\n<\/p>\n

If you don\u2019t finish reading this article it may never be written.<\/p>\n

If that\u2019s not incentive to abandon a boring news<\/a> piece, we\u2019re not sure what is.<\/p>\n

A team of researchers from Australia recently published a new take<\/a> on Wigner\u2019s Friend that\u2019s pretty mind-blowing. At the risk of sounding hyperbolic: this might be the most exciting quantum physics theory since Schrodinger\u2019s Cat<\/a>.<\/p>\n

Wigner\u2019s Friend<\/a> is a theory posited by Eugene Wigner in 1961. A really dumbed-down version of it goes like this:<\/p>\n

Wigner and his friend decide to do an experiment at a quantum physics laboratory. Wigner stays outside of the laboratory and his friend goes inside. The friend\u2019s job is to observe the velocity<\/i> of an entangled particle. They conduct the experiment and determine the velocity of the particle.<\/span><\/p>\n

Next, Wigner opens the door to the laboratory and asks for the result. Wigner\u2019s friend gives them the result and the experiment is complete.<\/span><\/p>\n

That might not app<\/a>ear to be a wild and wacky physic theory, but it\u2019s actually way cooler than it seems.<\/span><\/p>\n

Researchers have demonstrated through myriad quantum physics experiments that particles act differently when they\u2019re observed. It isn\u2019t until a particle is measured that we can determine it\u2019s location or velocity (as particles are typically always in motion, and Heisenberg\u2019s Uncertainty Principle<\/a> tells us we cannot know both at the same time).<\/span><\/p>\n

So, when Wigner\u2019s friend measures the particle, they\u2019re theoretically changing its quantum state. In other words: until Wigner\u2019s friend opens the box, the cat is considered both dead and alive.<\/span><\/p>\n

The particle (or cat) isn\u2019t the only thing in the experiment that\u2019s entangled. Wigner and his friend are also theoretically entangled. <\/span><\/p>\n

This results in a situation where Wigner can know the velocity of a particle that nobody has ever seen because his friend observed a particle that was entangled with it. Cool right?<\/span><\/p>\n

The Australian team didn\u2019t quite buy it. They decided to expand the experiment to include more observers and, in doing so, appear to have disputed some long-standing beliefs about physical reality. <\/span><\/p>\n

Per their paper:<\/span><\/p>\n

Here, by building on a scenario with two separated but entangled friends introduced by Brukner, we prove that if quantum evolution is controllable on the scale of an observer, then one of \u2018No-Superdeterminism\u2019, \u2018Locality\u2019 or \u2018Absoluteness of Observed Events\u2019\u2014that every observed event exists absolutely, not relatively\u2014must be false.<\/p>\n<\/blockquote>\n

This tells us that god probably does<\/em> play dice with the universe. In other words, the idea that whatever is going to happen was going to happen whether we observed it or not might be bunk.<\/p>\n

There\u2019s a few possible explanations for this. Perhaps we\u2019re not taking Einstein literally enough, in that relativity could<\/i> allow for a constant \u201ctruth\u201d with mutating variables. In other words: maybe the universe is even more relative than even Einstein posited. <\/span><\/p>\n

Another interesting possibility is the multi-worlds theory<\/a>. Over the years, the idea that objects exist in multiple universes simultaneously, with all possible outcomes occurring across them, has become less fringe.<\/span><\/p>\n

In this instance, multi-worlds could explain disparate measurements between entangled observers. But it does ask a lot more questions about the nature of entanglement than it answers.<\/span><\/p>\n

You can check out the entire paper here<\/a>. <\/span><\/p>\n<\/div>\n

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Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

“#This quantum paradox will make you question reality” If you don\u2019t finish reading this article it may never be written. If that\u2019s not incentive to abandon a boring news piece, we\u2019re not sure what is. A team of researchers from Australia recently published a new take on Wigner\u2019s Friend that\u2019s pretty mind-blowing. At the risk…<\/p>\n","protected":false},"author":1,"featured_media":250117,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/img-cdn.tnwcdn.com\/image\/neural?filter_last=1&fit=1280,640&url=https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2017\/05\/ExperimentingGeneWilder.png&signature=c64f672a09c4a644da7fa1b53f5932ef","fifu_image_alt":"","footnotes":""},"categories":[18],"tags":[],"class_list":["post-250116","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/250116","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=250116"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/250116\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/250117"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=250116"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=250116"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=250116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}