{"id":19055,"date":"2022-01-07T14:01:52","date_gmt":"2022-01-07T13:01:52","guid":{"rendered":"\/?p=19055"},"modified":"2022-01-07T14:01:52","modified_gmt":"2022-01-07T13:01:52","slug":"penrose-superradiance-observed-in-photon-superfluids-editors-suggestion-in-prl","status":"publish","type":"post","link":"https:\/\/www.ino.cnr.it\/?p=19055","title":{"rendered":"Penrose superradiance observed in photon superfluids &#8211; Editors&#8217; Suggestion in PRL"},"content":{"rendered":"<p>The superradiant amplification in the scattering from a rotating medium was first elucidated by Sir Roger Penrose over 50 years ago as a means by which particles could gain energy from the rotating spacetime surrounding Kerr black holes.<\/p>\n<p>In a recent work, selected as an Editors&#8217; Suggestion in Physical Review Letters, the analogue of this process has been demostrated in a superfluid of photons, where Bogoliubov excitations act as massless particles in the Penrose picture and an optical vortex simulates the rotating spacetime geometry on which these particles can propagate.<\/p>\n<p>This observation is the result of a long-standing collaboration between researchers from Heriot-Watt University, the University of Glasgow, the University of Arizona and the CNR-INO.<\/p>\n<p><a href=\"https:\/\/journals.aps.org\/prl\/abstract\/10.1103\/PhysRevLett.128.013901\">Measurement of Penrose Superradiance in a Photon Superfluid<\/a><br \/>\nMaria Chiara Braidotti, Radivoje Prizia, Calum Maitland, Francesco Marino, Angus Prain, Ilya Starshynov, Niclas Westerberg, Ewan M. Wright, and Daniele Faccio<br \/>\nPhys. Rev. Lett. 128, 013901 \u2013 Published 4 January 2022<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The superradiant amplification in the scattering from a rotating medium was first elucidated by Sir Roger Penrose over 50 years ago as a means by which<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":50721,"featured_media":19053,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[72],"tags":[],"class_list":["post-19055","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-researchfocus-it"],"_links":{"self":[{"href":"https:\/\/www.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/posts\/19055","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/users\/50721"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ino.cnr.it\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19055"}],"version-history":[{"count":1,"href":"https:\/\/www.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/posts\/19055\/revisions"}],"predecessor-version":[{"id":19056,"href":"https:\/\/www.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/posts\/19055\/revisions\/19056"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/media\/19053"}],"wp:attachment":[{"href":"https:\/\/www.ino.cnr.it\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19055"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ino.cnr.it\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19055"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ino.cnr.it\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19055"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}