{"id":9004,"date":"2023-04-18T08:07:18","date_gmt":"2023-04-18T06:07:18","guid":{"rendered":"https:\/\/fermi.univ-tlse3.fr\/?post_type=tribe_events&#038;p=9004"},"modified":"2023-04-20T15:08:10","modified_gmt":"2023-04-20T13:08:10","slug":"proprietes-critiques-de-la-chaine-de-majorana-avec-des-interactions-concurrentes-natalia-chepiga-lpt-seminar-25-04-2023-14h","status":"publish","type":"tribe_events","link":"https:\/\/fermi.univ-tlse3.fr\/fr\/home\/event\/proprietes-critiques-de-la-chaine-de-majorana-avec-des-interactions-concurrentes-natalia-chepiga-lpt-seminar-25-04-2023-14h\/","title":{"rendered":"Propri\u00e9t\u00e9s critiques de la cha\u00eene de Majorana avec des interactions concurrentes. &#8211; (Natalia Chepiga \/  LPT \/ Seminar). &#8211; 25\/04\/2023, 14H"},"content":{"rendered":"<p><span style=\"font-size: 20px;\"><span style=\"color: #191970;\"><strong>Natalia Chepiga <\/strong><\/span>(TU Delft)<\/span><\/p>\n<p><span style=\"background-color: #cecece;\">Seminar LPT, 25 avril 2023, 14H, 3R1, seminar room, 3rd floor<\/span><\/p>\n<p><span style=\"color: #191970;\"><strong>Summary<\/strong><\/span> :<\/p>\n<div class=\"\">\n<p>I will present our recent study of the critical properties of a Majorana chain in the presence of two competing interactions of the shortest possible range. The obtained phase diagram is very rich and contains nine different phases, including three floating, two Ising, and four gapped phases. In addition I will overview a wide variety of quantum phase transitions present in the system : the supersymmetric tri-critical Ising lines ; the Lifshitz critical line characterized by the dynamical critical exponent z=3 ; Kosterlitz-Thouless transitions, and an exotic first order transition between the floating and the gapped phases. I will discuss in detail the surprising feature of the obtained phase diagram &#8211; the emergence of the commensurate line at which the floating phases collapse into a direct transition. I will show numerical evidence that the resulting multi-critical point belongs to the universality class of the eight-vertex model.<\/p>\n<\/div>\n<p>&nbsp;<\/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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(Natalia Chepiga \/  LPT \/ Seminar). &#8211; 25\/04\/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-9004","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>Propri\u00e9t\u00e9s critiques de la cha\u00eene de Majorana avec des interactions concurrentes. - (Natalia Chepiga \/ LPT \/ Seminar). - 25\/04\/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\/proprietes-critiques-de-la-chaine-de-majorana-avec-des-interactions-concurrentes-natalia-chepiga-lpt-seminar-25-04-2023-14h\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Propri\u00e9t\u00e9s critiques de la cha\u00eene de Majorana avec des interactions concurrentes. - (Natalia Chepiga \/ LPT \/ Seminar). - 25\/04\/2023, 14H - FeRMI\" \/>\n<meta property=\"og:description\" content=\"Natalia Chepiga (TU Delft) Seminar LPT, 25 avril 2023, 14H, 3R1, seminar room, 3rd floor Summary : I will present our recent study of the critical properties of a Majorana&hellip;&nbsp;Lire la suite &raquo;Propri\u00e9t\u00e9s critiques de la cha\u00eene de Majorana avec des interactions concurrentes. &#8211; 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