{"id":2458,"date":"2017-01-10T22:29:39","date_gmt":"2017-01-10T22:29:39","guid":{"rendered":"http:\/\/users.unimi.it\/aqm\/?p=2458"},"modified":"2017-01-10T22:30:04","modified_gmt":"2017-01-10T22:30:04","slug":"konrad-banaszek-visiting-aqm","status":"publish","type":"post","link":"https:\/\/sites.unimi.it\/aqm\/konrad-banaszek-visiting-aqm\/","title":{"rendered":"Konrad Banaszek visiting AQM"},"content":{"rendered":"<p class=\"p2\"><span class=\"s1\"><strong>Konrad Banaszek<\/strong> from University of Warsaw\u00a0<\/span><span class=\"s1\">is going to visit us from Monday 27 Feb (afternoon)\u00a0<\/span><span class=\"s1\">to Thursday 2 Mar 2017.<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\">On <em>Tuesday, Feb 28th, 12 AM\u00a0<\/em><\/span><span class=\"s1\">Konrad is going to deliver\u00a0<\/span><span class=\"s1\">a seminar entitled<\/span><\/p>\n<h3 class=\"p2\"><span class=\"s1\">Restoring quantum enhancement in two-photon interferometry<\/span><\/h3>\n<p><!--more--><\/p>\n<p class=\"p2\"><span class=\"s1\">We analyze the interplay between one- and two-photon interference\u00a0<\/span><span class=\"s1\">in a Mach-Zehnder interferometer fed with partly distinguishable\u00a0<\/span><span class=\"s1\">photon pairs. We show that deleterious effects of residual\u00a0<\/span><span class=\"s1\">distinguishability in one, experimentally inaccessible degree of\u00a0<\/span><span class=\"s1\">freedom can be alleviated by engineering another, fully controllable\u00a0<\/span><span class=\"s1\">degree of freedom. As a result, sub-shot-noise precision of a local\u00a0<\/span><span class=\"s1\">phase measurement can be restored in the operating regime where\u00a0<\/span><span class=\"s1\">standard two-photon interference provides vanishing phase sensitivity. Theoretical results are illustrated with an experiment utilizing\u00a0<\/span><span class=\"s1\">spatially resolved detection of photon pairs prepared in carefully\u00a0<\/span><span class=\"s1\">engineered transverse modes to overcome effects of residual\u00a0<\/span>distinguishability in the spectral domain.<\/p>\n<p class=\"p2\"><span class=\"s1\">M. Jachura et al <em>Nature Comm<\/em>\u00a0<strong>7<\/strong>, 11411 (2016)<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Konrad Banaszek from University of Warsaw\u00a0is going to visit us from Monday 27 Feb (afternoon)\u00a0to Thursday 2 Mar 2017. On Tuesday, Feb 28th, 12 AM\u00a0Konrad is going to deliver\u00a0a seminar entitled Restoring quantum enhancement in two-photon interferometry<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,9],"tags":[],"_links":{"self":[{"href":"https:\/\/sites.unimi.it\/aqm\/wp-json\/wp\/v2\/posts\/2458"}],"collection":[{"href":"https:\/\/sites.unimi.it\/aqm\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.unimi.it\/aqm\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.unimi.it\/aqm\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.unimi.it\/aqm\/wp-json\/wp\/v2\/comments?post=2458"}],"version-history":[{"count":2,"href":"https:\/\/sites.unimi.it\/aqm\/wp-json\/wp\/v2\/posts\/2458\/revisions"}],"predecessor-version":[{"id":2460,"href":"https:\/\/sites.unimi.it\/aqm\/wp-json\/wp\/v2\/posts\/2458\/revisions\/2460"}],"wp:attachment":[{"href":"https:\/\/sites.unimi.it\/aqm\/wp-json\/wp\/v2\/media?parent=2458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.unimi.it\/aqm\/wp-json\/wp\/v2\/categories?post=2458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.unimi.it\/aqm\/wp-json\/wp\/v2\/tags?post=2458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}