{"id":9192,"date":"2023-09-05T10:21:09","date_gmt":"2023-09-05T08:21:09","guid":{"rendered":"https:\/\/fermi.univ-tlse3.fr\/?post_type=tribe_events&#038;p=9192"},"modified":"2023-09-05T10:21:09","modified_gmt":"2023-09-05T08:21:09","slug":"deux-modeles-de-spin-aux-proprietes-inattendues-haruki-watanabe-lpt-seminar-05-09-2023-14h","status":"publish","type":"tribe_events","link":"https:\/\/fermi.univ-tlse3.fr\/fr\/home\/event\/deux-modeles-de-spin-aux-proprietes-inattendues-haruki-watanabe-lpt-seminar-05-09-2023-14h\/","title":{"rendered":"Deux mod\u00e8les de spin aux propri\u00e9t\u00e9s inattendues &#8211; (Haruki Watanabe \/ LPT \/ Seminar). &#8211; 05\/09\/2023, 14H"},"content":{"rendered":"<p><span style=\"font-size: 20px;\"><span style=\"color: #191970;\"><strong>Haruki Watanabe <\/strong><\/span>(EUniversit\u00e9 de Tokyo)<\/span><\/p>\n<p><span style=\"background-color: #cecece;\">Seminar LPT, 05\/09\/2023, 14H, 3R1, seminar room, 3rd floor<\/span><\/p>\n<p><strong>Summary :<\/strong><\/p>\n<p>In this talk, I will introduce two series of simple spin models with unusual properties. The first one is a modified Toric code that may have a unique ground state under periodic boundary condition, despite its nontrivial topological order dictated by nontrivial entanglement entropy and anyonic excitations. The second one is a spin chain in which a U(1) symmetry may be spontaneously broken at T=0, although naively such a phase is prohibited by the Hohenberg-Mermin-Wagner theorem. These examples will help our general understanding of quantum many-body systems and complete classification of possible phases of matter.<\/p>\n<hr \/>\n<div class=\"leaflet-map WPLeafletMap\" style=\"height:300px; width:80%;\"><\/div><script>\nwindow.WPLeafletMapPlugin = window.WPLeafletMapPlugin || [];\nwindow.WPLeafletMapPlugin.push(function WPLeafletMapShortcode() {\/*<script>*\/\nvar baseUrl = atob('aHR0cHM6Ly97c30udGlsZS5vcGVuc3RyZWV0bWFwLm9yZy97en0ve3h9L3t5fS5wbmc=');\nvar base = (!baseUrl && window.MQ) ?\n    window.MQ.mapLayer() : L.tileLayer(baseUrl,\n        L.Util.extend({}, {\n            detectRetina: 0,\n        },\n        {\"subdomains\":\"abc\",\"noWrap\":false,\"maxZoom\":18}        )\n    );\n    var options = L.Util.extend({}, {\n        layers: [base],\n        attributionControl: false\n    },\n    {\"zoomControl\":true,\"scrollWheelZoom\":true,\"doubleClickZoom\":true,\"fitBounds\":true,\"minZoom\":9,\"maxZoom\":18,\"maxBounds\":null,\"attribution\":\"<a href=\\\"http:\\\/\\\/leafletjs.com\\\" title=\\\"Une biblioth\\u00e8que JS pour des cartes interactives\\\">Leaflet<\\\/a>; 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(Haruki Watanabe \/ LPT \/ Seminar). &#8211; 05\/09\/2023, 14H<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"template":"","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","_tribe_events_status":"","_tribe_events_status_reason":"","footnotes":""},"tags":[],"tribe_events_cat":[48,313,233],"class_list":["post-9192","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-events","tribe_events_cat-lpt","tribe_events_cat-seminars","cat_events","cat_lpt","cat_seminars"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Deux mod\u00e8les de spin aux propri\u00e9t\u00e9s inattendues - (Haruki Watanabe \/ LPT \/ Seminar). - 05\/09\/2023, 14H - FeRMI<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fermi.univ-tlse3.fr\/fr\/home\/event\/deux-modeles-de-spin-aux-proprietes-inattendues-haruki-watanabe-lpt-seminar-05-09-2023-14h\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Deux mod\u00e8les de spin aux propri\u00e9t\u00e9s inattendues - (Haruki Watanabe \/ LPT \/ Seminar). - 05\/09\/2023, 14H - FeRMI\" \/>\n<meta property=\"og:description\" content=\"Haruki Watanabe (EUniversit\u00e9 de Tokyo) Seminar LPT, 05\/09\/2023, 14H, 3R1, seminar room, 3rd floor Summary : In this talk, I will introduce two series of simple spin models with unusual&hellip;&nbsp;Lire la suite &raquo;Deux mod\u00e8les de spin aux propri\u00e9t\u00e9s inattendues &#8211; 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