{"id":88752,"date":"2019-03-18T11:22:52","date_gmt":"2019-03-18T18:22:52","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2019\/03\/physicists-reverse-time-using-quantum-computer"},"modified":"2019-03-18T11:22:52","modified_gmt":"2019-03-18T18:22:52","slug":"physicists-reverse-time-using-quantum-computer","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2019\/03\/physicists-reverse-time-using-quantum-computer","title":{"rendered":"Physicists reverse time using quantum computer"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/physicists-reverse-time-using-quantum-computer2.jpg\"><\/a><\/p>\n<p>Researchers from the Moscow Institute of Physics and Technology teamed up with colleagues from the U.S. and Switzerland and returned the state of a quantum computer a fraction of a second into the past. They also calculated the probability that an electron in empty interstellar space will spontaneously travel back into its recent past. The <a href=\"https:\/\/arxiv.org\/pdf\/1712.10057.pdf\">study<\/a> is published in Scientific Reports.<\/p>\n<p>\u201cThis is one in a series of papers on the possibility of violating the <a href=\"https:\/\/phys.org\/tags\/second+law+of+thermodynamics\/\" rel=\"tag\" class=\"\">second law of thermodynamics<\/a>. That law is closely related to the notion of the arrow of time that posits the one-way direction of time from the past to the future,\u201d said the study\u2019s lead author Gordey Lesovik, who heads the Laboratory of the Physics of Quantum Information Technology at MIPT.<\/p>\n<p>\u201cWe began by <a href=\"https:\/\/journals.aps.org\/pra\/abstract\/10.1103\/PhysRevA.94.052133\">describing<\/a> a so-called local perpetual motion machine of the second kind. Then, in December, we published a paper that discusses the violation of the second law via a device called a Maxwell\u2019s demon,\u201d Lesovik said. \u201cThe most recent paper approaches the same problem from a third angle: We have artificially created a state that evolves in a direction opposite to that of the thermodynamic arrow of time.\u201d<\/p>\n<p><!-- Link: <a href=\"https:\/\/phys.org\/news\/2019-03-physicists-reverse-quantum.html\">https:\/\/phys.org\/news\/2019&#45;03-physicists-reverse-quantum.html<\/a> --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Researchers from the Moscow Institute of Physics and Technology teamed up with colleagues from the U.S. and Switzerland and returned the state of a quantum computer a fraction of a second into the past. They also calculated the probability that an electron in empty interstellar space will spontaneously travel back into its recent past. The [\u2026]<\/p>\n","protected":false},"author":513,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1523,1496,1617,1514],"tags":[],"class_list":["post-88752","post","type-post","status-publish","format-standard","hentry","category-computing","category-law","category-quantum-physics","category-space-travel"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/88752","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=88752"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/88752\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=88752"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=88752"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=88752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}