{"id":9198,"date":"2023-09-16T09:00:46","date_gmt":"2023-09-16T07:00:46","guid":{"rendered":"https:\/\/fermi.univ-tlse3.fr\/?post_type=tribe_events&#038;p=9198"},"modified":"2023-09-19T08:47:36","modified_gmt":"2023-09-19T06:47:36","slug":"explorer-la-physique-du-magnetisme-quantique-avec-des-atomes-de-rydberg-individuels-thierry-lahaye-seminar-sfp-22-09-2023-11h","status":"publish","type":"tribe_events","link":"https:\/\/fermi.univ-tlse3.fr\/fr\/home\/event\/explorer-la-physique-du-magnetisme-quantique-avec-des-atomes-de-rydberg-individuels-thierry-lahaye-seminar-sfp-22-09-2023-11h\/","title":{"rendered":"Explorer la physique du magn\u00e9tisme quantique avec des atomes de Rydberg individuels . &#8211; (Thierry Lahaye\/ Seminar\/ SFP). &#8211; 22\/09\/2023, 11H"},"content":{"rendered":"<p><span style=\"font-size: 20px; color: #191970;\"><b><span style=\"font-size: large;\"> Thierry Lahaye<\/span> <\/b><\/span>(CNRS &amp; Institut d\u2019Optique, Universit\u00e9 Paris-Saclay, Palaiseau)<\/p>\n<p><strong><span style=\"font-size: 20px;\">Lieu :<\/span> <span style=\"color: #191970;\">Salle de conf\u00e9rence, nouveau B\u00e2timent 3R4<\/span><\/strong><\/p>\n<p><span style=\"font-size: 20px;\"><strong>R\u00e9sum\u00e9 :<\/strong><\/span><br \/>\nDans ce s\u00e9minaire, l\u2019orateur Thierry Lahaye montrera comment, en utilisant des atomes individuels, pi\u00e9g\u00e9s dans des pinces optiques arrang\u00e9es selon des g\u00e9om\u00e9tries bien contr\u00f4l\u00e9es, et en portant ces atomes dans des \u00e9tats \u00e9lectroniques tr\u00e8s excit\u00e9s, dits \u00e9tats de Rydberg, il est possible de r\u00e9aliser des syst\u00e8mes quantiques \u00e0 N corps d\u00e9crits par les Hamiltoniens de spins utilis\u00e9s habituellement pour d\u00e9crire le magn\u00e9tisme quantique. Apr\u00e8s une br\u00e8ve description des techniques exp\u00e9rimentales utilis\u00e9es, quelques r\u00e9sultats r\u00e9cents sur l\u2019\u00e9tude du mod\u00e8le d\u2019Ising <strong>[1]<\/strong> et du mod\u00e8le XY <strong>[2,3]<\/strong> seront montr\u00e9s.<\/p>\n<p><strong>[1]<\/strong> P. Scholl et al., Nature 595, 233 (2021).<br \/>\n<strong>[2]<\/strong> C. Cheng et al., Nature 616, 691 (2023).<br \/>\n<strong>[3]<\/strong> G. Bornet et al., Nature, sous presse (2023).<\/p>\n<hr \/>\n<p class=\"western\"><code class=\"western\"><span style=\"font-family: Leelawadee UI, sans-serif;\"><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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