{"id":11009,"date":"2024-10-07T09:41:32","date_gmt":"2024-10-07T07:41:32","guid":{"rendered":"https:\/\/fermi.univ-tlse3.fr\/?post_type=tribe_events&#038;p=11009"},"modified":"2024-10-09T11:16:23","modified_gmt":"2024-10-09T09:16:23","slug":"source-datomes-ultra-froids-pour-les-capteurs-quantiques-embarques-conception-et-mise-en-oeuvre-dune-puce-magnetique-a-reseau","status":"publish","type":"tribe_events","link":"https:\/\/fermi.univ-tlse3.fr\/fr\/home\/event\/source-datomes-ultra-froids-pour-les-capteurs-quantiques-embarques-conception-et-mise-en-oeuvre-dune-puce-magnetique-a-reseau\/","title":{"rendered":"Source d\u2019atomes ultra-froids pour les capteurs quantiques embarqu\u00e9s : conception et mise en \u0153uvre d\u2019une puce magn\u00e9tique \u00e0 r\u00e9seau. &#8211; (Romain Calviac \/ Th\u00e8se \/ LCAR-LAAS), 15\/10\/2024, 14H"},"content":{"rendered":"<p><span style=\"font-size: 20px; background-color: #f18500;\">Soutenance de th\u00e8se<\/span><\/p>\n<p><strong><span style=\"font-size: 20px; color: #191970;\">Romain Calviac <\/span> <\/strong> FeRMI, Salle de conf\u00e9rence 3R4<\/p>\n<p><strong>Composition du jury:<\/strong><\/p>\n<ul>\n<li>Alexandre Gauguet, directeur de th\u00e8se, LCAR<\/li>\n<li>Olivier Gauthier-Lafaye, directeur de th\u00e8se, LAAS<\/li>\n<li>Baptiste Allard, co-encadrant, LCAR<\/li>\n<li>Antoine Monmayrant, co-encadrant, LAAS<\/li>\n<li>Agn\u00e8s Ma\u00eetre, rapporteuse, Sorbonne Universit\u00e9<\/li>\n<li>Jacob Reichel, rapporteur, LKB, Ecole Normale Sup\u00e9rieure <\/li>\n<li>Baptiste Battelier, examinateur, LP2N, Bordeaux<\/li>\n<li>Cl\u00e9ment Lacroute, examinateur, FEMTO-ST<\/li>\n<li>Pierre Renucci, examinateur, INSA Toulouse<\/li>\n<li>Thomas L\u00e9v\u00e8que, invit\u00e9, CNES<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: 20px;\"><strong>R\u00e9sum\u00e9:<\/strong><\/span><br \/>\nMes travaux de th\u00e8se s&rsquo;inscrivent dans le contexte du d\u00e9veloppement de capteurs quantiques \u00e0 onde de mati\u00e8re embarqu\u00e9s. Ces instruments, relativement complexes, \u00e9taient jusqu&rsquo;\u00e0 r\u00e9cemment principalement utilis\u00e9s en laboratoire. Aujourd&rsquo;hui, les techniques d&rsquo;interf\u00e9rom\u00e9trie atomique ont suffisamment \u00e9volu\u00e9 pour permettre leur utilisation en dehors de ces derniers. Cependant, l&rsquo;environnement embarqu\u00e9 ajoute un ensemble de contraintes suppl\u00e9mentaires. Ainsi, les syst\u00e8mes laser, le syst\u00e8me de contr\u00f4le, la chambre \u00e0 ultra-vide ainsi que la source d&rsquo;atomes froids ou ultra-froids constituant ces capteurs doivent r\u00e9pondre \u00e0 plusieurs exigences : \u00eatre compacts, robustes, consommer peu d&rsquo;\u00e9nergie et \u00eatre transportables. Ma th\u00e8se s&rsquo;est donc concentr\u00e9e sur la conception d&rsquo;une nouvelle source d&rsquo;atomes ultra-froids r\u00e9pondant \u00e0 ces contraintes. L\u00e0 o\u00f9 les dispositifs similaires utilisent au moins trois faisceaux laser, la source que j&rsquo;ai con\u00e7ue est capable de! g\u00e9n\u00e9rer un condensat de Bose-Einstein avec un seul faisceau. Pour cela, j&rsquo;ai dimensionn\u00e9 un r\u00e9seau de diffraction permettant de r\u00e9aliser un pi\u00e8ge magn\u00e9to-optique \u00e0 un faisceau. Celui-ci a \u00e9t\u00e9 assembl\u00e9 avec une puce magn\u00e9tique que j&rsquo;ai \u00e9galement con\u00e7ue. Par la suite, j&rsquo;ai mis en \u0153uvre cette source, ce qui a permis d&rsquo;obtenir pour la premi\u00e8re fois une puce magn\u00e9tique \u00e0 r\u00e9seau, capable de g\u00e9n\u00e9rer des atomes ultra-froids.<\/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>; \\u00a9 <a href=\\\"http:\\\/\\\/www.openstreetmap.org\\\/copyright\\\">OpenStreetMap<\\\/a> contributeurs\"},\n    {});\nwindow.WPLeafletMapPlugin.createMap(options).setView([43.560705280387,1.4674275538563],16);window.WPLeafletMapPlugin.createScale({});});<\/script><\/span><\/p>\n<p class=\"western\"><code class=\"western\"><span style=\"font-family: Leelawadee UI, sans-serif;\"><script>\nwindow.WPLeafletMapPlugin = window.WPLeafletMapPlugin || [];\nwindow.WPLeafletMapPlugin.push(function WPLeafletMarkerShortcode() {\/*<script>*\/\nvar map = window.WPLeafletMapPlugin.getCurrentMap();\nvar group = window.WPLeafletMapPlugin.getCurrentGroup();\nvar marker_options = window.WPLeafletMapPlugin.getIconOptions({});\nvar marker = L.marker(\n    [0,0],\n    marker_options\n);\nvar is_image = map.is_image_map;\n    marker.setLatLng( map.getCenter() );\nif (marker_options.draggable) {\n    marker.on('dragend', function () {\n        var latlng = this.getLatLng();\n        var lat = latlng.lat;\n        var lng = latlng.lng;\n        if (is_image) {\n            console.log('leaflet-marker y=' + lat + ' x=' + lng);\n        } else {\n            console.log('leaflet-marker lat=' + lat + ' lng=' + lng);\n        }\n    });\n}\nmarker.addTo( group );\nmarker.bindPopup(window.WPLeafletMapPlugin.unescape('Salle de s\u00e9minaire du 3R4'));window.WPLeafletMapPlugin.markers.push( marker );\n        });<\/script><\/span><\/code><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Romain Calviac, LCAR et LAAS<\/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":"","neve_meta_reading_time":"","_tribe_events_status":"","_tribe_events_status_reason":"","footnotes":""},"tags":[],"tribe_events_cat":[48,308,309],"class_list":["post-11009","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-events","tribe_events_cat-hdr-thesis","tribe_events_cat-lcar","cat_events","cat_hdr-thesis","cat_lcar"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - 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