{"id":11721,"date":"2020-10-05T21:35:19","date_gmt":"2020-10-05T21:35:19","guid":{"rendered":"https:\/\/projects.ift.uam-csic.es\/holotube\/?page_id=11721"},"modified":"2020-11-07T20:35:06","modified_gmt":"2020-11-07T20:35:06","slug":"11721-2","status":"publish","type":"page","link":"https:\/\/projects.ift.uam-csic.es\/holotube\/11721-2\/","title":{"rendered":""},"content":{"rendered":"\n<p><strong>Speaker:<\/strong> Hugo Camargo <\/p>\n\n\n\n<p><strong>Affiliation:<\/strong><br>Max Planck Institute for Gravitational Physics<\/p>\n\n\n\n<p><strong>Title:<\/strong><br>Complexity of purification for free quantum fields<\/p>\n\n\n\n<p><strong>Abstract:<\/strong><br>Finding pure states in an enlarged Hilbert space that encode a given quantum field theory mixed state as a partial trace is necessarily a challenging task.&nbsp; Nevertheless, such purifications play the key role in characterizing quantum information theoretic properties of mixed states via quantities such as complexity of purifications. In this talk, we analyze this quantity in the case of a single interval, adjacent intervals and two symmetric intervals&nbsp; in&nbsp; the&nbsp; vacuum&nbsp; of&nbsp; free&nbsp; boson&nbsp; and&nbsp; Ising&nbsp; conformal&nbsp; field&nbsp; theories&nbsp; using,&nbsp; for&nbsp; the&nbsp; first&nbsp; time, the most general Gaussian purifications. We provide a comprehensive comparison with existing results and discuss what general properties of complexity of purification are appropriately captured by Gaussian purifications, and which are generically non-Gaussian.<\/p>\n\n\n\n<div class=\"wp-block-file\"><a href=\"https:\/\/projects.ift.uam-csic.es\/holotube\/wp-content\/uploads\/2020\/10\/ComplexityCamargo.pdf\">ComplexityCamargo<\/a><a href=\"https:\/\/projects.ift.uam-csic.es\/holotube\/wp-content\/uploads\/2020\/10\/ComplexityCamargo.pdf\" class=\"wp-block-file__button\" download>Download<\/a><\/div>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\"  style=\"display: block; margin: 0px auto;\"  id=\"_ytid_52872\"  width=\"1170\" height=\"658\"  data-origwidth=\"1170\" data-origheight=\"658\" src=\"https:\/\/www.youtube.com\/embed\/VJ5M9w0HhHc?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;rel=1&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;\" class=\"__youtube_prefs__  epyt-is-override  no-lazyload\" title=\"YouTube player\"  allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen data-no-lazy=\"1\" data-skipgform_ajax_framebjll=\"\"><\/iframe>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Speaker: Hugo Camargo Affiliation:Max Planck Institute for Gravitational Physics Title:Complexity of purification for free quantum fields Abstract:Finding pure states in an enlarged Hilbert space that encode a given quantum field theory mixed state as a partial trace is necessarily a challenging task.&nbsp; Nevertheless, such purifications play the key role in characterizing quantum information theoretic properties [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"class_list":["post-11721","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/projects.ift.uam-csic.es\/holotube\/wp-json\/wp\/v2\/pages\/11721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/projects.ift.uam-csic.es\/holotube\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/projects.ift.uam-csic.es\/holotube\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/projects.ift.uam-csic.es\/holotube\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/projects.ift.uam-csic.es\/holotube\/wp-json\/wp\/v2\/comments?post=11721"}],"version-history":[{"count":3,"href":"https:\/\/projects.ift.uam-csic.es\/holotube\/wp-json\/wp\/v2\/pages\/11721\/revisions"}],"predecessor-version":[{"id":62897,"href":"https:\/\/projects.ift.uam-csic.es\/holotube\/wp-json\/wp\/v2\/pages\/11721\/revisions\/62897"}],"wp:attachment":[{"href":"https:\/\/projects.ift.uam-csic.es\/holotube\/wp-json\/wp\/v2\/media?parent=11721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}