{"id":93379,"date":"2019-07-09T17:22:26","date_gmt":"2019-07-10T00:22:26","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2019\/07\/characterizing-the-arrow-of-time-in-open-quantum-systems"},"modified":"2019-07-09T17:22:26","modified_gmt":"2019-07-10T00:22:26","slug":"characterizing-the-arrow-of-time-in-open-quantum-systems","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2019\/07\/characterizing-the-arrow-of-time-in-open-quantum-systems","title":{"rendered":"Characterizing the \u2018arrow of time\u2019 in open quantum systems"},"content":{"rendered":"<p><\/p>\n<p><iframe style=\"display: block; margin: 0 auto; width: 100%; aspect-ratio: 4\/3; object-fit: contain;\" src=\"https:\/\/www.youtube.com\/embed\/2pCwH4Wgq8M?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope;\n   picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>Even in the strange world of open quantum systems, the arrow of time points steadily forward\u2014most of the time. New experiments conducted at Washington University in St. Louis compare the forward and reverse trajectories of superconducting circuits called qubits, and find that they follow the second law of thermodynamics. The research is published July 9 in the journal Physical Review Letters.<\/p>\n<p>\u201cWhen you look at a quantum system, the act of measuring usually changes the way it behaves,\u201d said Kater Murch, associate professor of physics in Arts &amp; Sciences. \u201cImagine shining light on a small particle. The photons end up pushing it around and there is a dynamic associated with the measurement process alone.<\/p>\n<p>\u201dWe wanted to find out if these dynamics have anything to do with the arrow of time\u2014the fact that entropy tends to increase as time goes on.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Even in the strange world of open quantum systems, the arrow of time points steadily forward\u2014most of the time. New experiments conducted at Washington University in St. Louis compare the forward and reverse trajectories of superconducting circuits called qubits, and find that they follow the second law of thermodynamics. The research is published July 9 [\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],"tags":[],"class_list":["post-93379","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\/93379","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=93379"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/93379\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=93379"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=93379"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=93379"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}