{"id":119322,"date":"2021-02-08T11:25:18","date_gmt":"2021-02-08T19:25:18","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2021\/02\/quantum-spooky-action-at-a-distance-travels-at-least-10000-times-faster-than-light"},"modified":"2021-02-08T11:25:18","modified_gmt":"2021-02-08T19:25:18","slug":"quantum-spooky-action-at-a-distance-travels-at-least-10000-times-faster-than-light","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2021\/02\/quantum-spooky-action-at-a-distance-travels-at-least-10000-times-faster-than-light","title":{"rendered":"Quantum \u201cspooky action at a distance\u201d travels at least 10,000 times faster than light"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/quantum-spooky-action-at-a-distance-travels-at-least-10000-times-faster-than-light2.jpg\"><\/a><\/p>\n<p>Circa 2013 o.o<\/p>\n<hr>\n<p>Quantum entanglement, one of the odder aspects of quantum theory, links the properties of particles even when they are separated by large distances. When a property of one of a pair of entangled particles is measured, the other \u201cimmediately\u201d settles down into a state compatible with that measurement. So how fast is \u201cimmediately\u201d? According to research by Prof. Juan Yin and colleagues at the University of Science and Technology of China in Shanghai, the <i>lower limit<\/i> to the speed associated with entanglement dynamics \u2013 or \u201cspooky action at a distance\u201d \u2013 is at least 10000 times faster than light.<\/p>\n<p>Despite playing a vital role in the development of quantum theory, Einstein felt philosophically at odds with its description of how the universe works. His famous quote that \u201cGod does not play dice\u201d hints at his level of discomfort with the role of probability in quantum theory. He believed there exists another level of reality in which all of physics would be deterministic, and that quantum mechanics would turn out to be a description that emerges from the workings of that level \u2013 rather like a traffic jam emerges from the independent motions of a large number of cars.<\/p>\n<p>In 1935 Einstein and his coworkers discovered quantum entanglement lurking in the equations of quantum mechanics, and realized its utter strangeness. This lead to the EPR paradox introduced by Einstein, Poldolsky and Rosen. The EPR paradox stated that the only ways of explaining the effects of quantum entanglement were to assume the universe is nonlocal, or that the true basis of physics is hidden (otherwise known as a hidden-variable theory). Nonlocality in this case means that events occurring to entangled objects are linked even when the events cannot communicate through spacetime, spacetime having the speed of light as a limiting velocity. Nonlocality is also known as spooky action at a distance (Einstein\u2019s phrase).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Circa 2013 o.o Quantum entanglement, one of the odder aspects of quantum theory, links the properties of particles even when they are separated by large distances. When a property of one of a pair of entangled particles is measured, the other \u201cimmediately\u201d settles down into a state compatible with that measurement. So how fast is [\u2026]<\/p>\n","protected":false},"author":513,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41,48,1617],"tags":[],"class_list":["post-119322","post","type-post","status-publish","format-standard","hentry","category-information-science","category-particle-physics","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/119322","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=119322"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/119322\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=119322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=119322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=119322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}