{"id":318108,"date":"2023-11-27T09:19:57","date_gmt":"2023-11-27T08:19:57","guid":{"rendered":"https:\/\/polishscience.pl\/?p=318108"},"modified":"2023-11-27T09:19:57","modified_gmt":"2023-11-27T08:19:57","slug":"discovery-by-physicists-from-the-university-of-warsaw","status":"publish","type":"post","link":"https:\/\/www.polishscience.pl\/en\/discovery-by-physicists-from-the-university-of-warsaw\/","title":{"rendered":"Discovery by physicists from the University of Warsaw"},"content":{"rendered":"

Researchers from the Department of Physics at the University of Warsaw (UW) have made a discovery that could have implications for research into the interaction of light with matter. It is a step towards the observation of quantum backflow. The researchers’ findings have been published in the journal Optica.<\/span><\/p>\n

The UW researchers superposed two beams of light ‘twisted’ in a clockwise direction, creating counterclockwise twists in small areas.\u00a0<\/span><\/p>\n

“In classical mechanics, an object has a fixed position. Meanwhile, in quantum mechanics and optics, it can be in the so-called superposition of states, which means that a given object can be in two or more positions at the same time”, explains Dr Radek \u0141apkiewicz, head of the Quantum Imaging Laboratory at the UW Department of Physics.<\/span><\/p>\n

It happens that particles in superposition may suddenly change direction and move backwards for a while or temporarily spin in the opposite direction. Physicists call such a phenomenon backward flow.<\/span><\/p>\n

The researchers observed linear backflow in a very simple case, i.e. by superimposing two beams of light.\u00a0<\/span><\/p>\n

Read more:\u00a0<\/span><\/p>\n

https:\/\/opg.optica.org\/optica\/fulltext.cfm?uri=optica-10-9-1217&id=537322<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Researchers from the Department of Physics at the University of Warsaw (UW) have made a discovery that could have implications for research into the interaction of light with matter. It is a step towards the observation of quantum backflow. The researchers’ findings have been published in the journal Optica. The UW researchers superposed two beams […]<\/p>\n","protected":false},"author":6,"featured_media":318042,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[28],"tags":[],"_links":{"self":[{"href":"https:\/\/www.polishscience.pl\/en\/wp-json\/wp\/v2\/posts\/318108"}],"collection":[{"href":"https:\/\/www.polishscience.pl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.polishscience.pl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.polishscience.pl\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.polishscience.pl\/en\/wp-json\/wp\/v2\/comments?post=318108"}],"version-history":[{"count":2,"href":"https:\/\/www.polishscience.pl\/en\/wp-json\/wp\/v2\/posts\/318108\/revisions"}],"predecessor-version":[{"id":318117,"href":"https:\/\/www.polishscience.pl\/en\/wp-json\/wp\/v2\/posts\/318108\/revisions\/318117"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.polishscience.pl\/en\/wp-json\/wp\/v2\/media\/318042"}],"wp:attachment":[{"href":"https:\/\/www.polishscience.pl\/en\/wp-json\/wp\/v2\/media?parent=318108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.polishscience.pl\/en\/wp-json\/wp\/v2\/categories?post=318108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.polishscience.pl\/en\/wp-json\/wp\/v2\/tags?post=318108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}