{"id":5804,"date":"2026-09-29T23:26:53","date_gmt":"2026-09-29T23:26:53","guid":{"rendered":"https:\/\/netguide.io\/news\/2026\/09\/29\/la-gravite-deinstein-entre-dans-le-monde-quantique-les-physiciens-mesurent-la-phase-quantique-de-lautomne-libre\/"},"modified":"2026-09-29T23:26:54","modified_gmt":"2026-09-29T23:26:54","slug":"la-gravite-deinstein-entre-dans-le-monde-quantique-les-physiciens-mesurent-la-phase-quantique-de-lautomne-libre","status":"publish","type":"post","link":"https:\/\/netguide.io\/news\/fr\/2026\/09\/29\/la-gravite-deinstein-entre-dans-le-monde-quantique-les-physiciens-mesurent-la-phase-quantique-de-lautomne-libre\/","title":{"rendered":"La gravit\u00e9 d&#8217;Einstein entre dans le monde quantique : les physiciens mesurent la phase quantique de l&#8217;automne libre"},"content":{"rendered":"<div id=\"netgu-2400418714\" class=\"netgu-before-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"3494115342\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><p class=\"wp-block-paragraph\"><strong>Les physiciens ont observ\u00e9 directement pour la premi\u00e8re fois comment la gravit\u00e9 modifie la phase quantique d&#8217;un atome en chute libre \u2013 confirmant que le principe d&#8217;\u00e9quivalence d&#8217;Einstein tient \u00e9galement pour les objets quantiques.<\/strong><\/p>\n\n<h3 class=\"wp-block-heading\">L&#8217;interf\u00e9rom\u00e8tre quantique Galileo<\/h3>\n\n<p class=\"wp-block-paragraph\">Pour l&#8217;exp\u00e9rience, les chercheurs ont divis\u00e9 les atomes de rubidium ultrafroid en une superposition quantique : une partie du paquet d&#8217;onde \u00e9tait maintenue stationnaire tandis que l&#8217;autre tombait librement sous la gravit\u00e9. Ils ont ensuite recombin\u00e9 les deux chemins et mesur\u00e9 la petite diff\u00e9rence dans la phase quantique que l&#8217;atome de chute s&#8217;\u00e9tait accumul\u00e9e par rapport \u00e0 celui du repos. La technique, baptis\u00e9e l&#8217;Interf\u00e9rom\u00e8tre de Galileo de Quantum, transporte la c\u00e9l\u00e8bre exp\u00e9rience de chute du corps de Galileo dans le monde des atomes individuels.<\/p><div id=\"netgu-3601956647\" class=\"netgu-content netgu-entity-placement\"><aside class=\"deals-top deals-top--compact\">\n\n\t\t\t<h3 class=\"deals-top__title\">Top-Deals<\/h3>\n\t\n\t\t\t<ul class=\"deals-top__list\">\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/moon-knight-digital-watch-face-fuer-wear-os-4\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/deal-27-150x150.png\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">MOON KNIGHT Digital Watch Face f\u00fcr Wear OS 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src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/2844571_1-150x150.webp\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">Kostenloses DLC-Bundle f\u00fcr Gears of War E-Day \u2013 Liquid Death Bundle<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">Gratis<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t54\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/kostenlose-emote-im-clash-royale-store\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/share-image-clashroyale-150x150.jpg\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">Kostenlose Emote im Clash Royale-Store<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">Gratis<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t54\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t<\/ul>\n\n\t\t\t\t\t<p class=\"deals-top__more\">\n\t\t\t\t<a href=\"https:\/\/netguide.io\/deals\/\">Alle Deals ansehen \u2192<\/a>\n\t\t\t<\/p>\n\t\t\t<\/aside>\n<\/div>\n\n<p class=\"wp-block-paragraph\">Le d\u00e9calage de phase mesur\u00e9 correspond \u00e0 la valeur obtenue en appliquant le principe d&#8217;\u00e9quivalence d&#8217;Einstein \u2013 l&#8217;\u00e9galit\u00e9 de masse gravitationnelle et d&#8217;inertie \u2013 \u00e0 un objet quantique. L&#8217;effet \u00e9tait pr\u00e9dit depuis longtemps mais jamais directement d\u00e9montr\u00e9.<\/p>\n\n<h3 class=\"wp-block-heading\">Ce que signifie le r\u00e9sultat \u2013 et ce qu&#8217;il ne fait pas<\/h3>\n\n<p class=\"wp-block-paragraph\">L&#8217;\u00e9quipe comprenait le professeur Ron Folman, le professeur Vlatko Vedral et le prix Nobel Sir Roger Penrose. L&#8217;\u00e9tude parut le 2 septembre 2026 dans la revue \u201eScience Advances&#8221;.<\/p>\n\n<ul class=\"wp-block-list\"><li>L&#8217;exp\u00e9rience <strong>pas<\/strong> unir m\u00e9canique quantique et gravit\u00e9.<\/li><li>Il ne prouve pas que la gravit\u00e9 elle-m\u00eame est quantique.<\/li><li>Il ne teste pas la proposition de Penrose d&#8217;un effondrement pour des objets massifs.<\/li><\/ul>\n\n<p class=\"wp-block-paragraph\">Les r\u00e9sultats restent \u00e0 l&#8217;\u00e9chelle du laboratoire pour le moment. Les tests futurs visent \u00e0 inclure des objets plus lourds tels que les nanodiamants, prospectant plus loin la fronti\u00e8re entre le monde quantique et le monde classique.<\/p>\n\n<p class=\"wp-block-paragraph\"><em>Sources :<\/em> <a href=\"https:\/\/www.eurekalert.org\/news-releases\/1141933\" rel=\"noopener\" target=\"_blank\">EurekAlert<\/a> \u00b7 <a href=\"https:\/\/www.physics.ox.ac.uk\/news\/scientists-observe-einsteins-gravity-quantum-world\" rel=\"noopener\" target=\"_blank\">Universit\u00e9 d&#8217;Oxford<\/a> \u00b7 <a href=\"https:\/\/www.sciencedaily.com\/releases\/2026\/09\/260907201552.htm\" rel=\"noopener\" target=\"_blank\">ScienceDaily<\/a><\/p><div id=\"netgu-990691054\" class=\"netgu-after-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"4559785002\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Une \u00e9quipe internationale de l&#8217;Universit\u00e9 Ben-Gurion, de l&#8217;Universit\u00e9 d&#8217;Ulm et d&#8217;Oxford a mesur\u00e9 pour la premi\u00e8re fois comment la gravit\u00e9 d\u00e9place la phase quantique d&#8217;un atome en chute libre, confirmant le principe d&#8217;\u00e9quivalence d&#8217;Einstein.<\/p>\n","protected":false},"author":1,"featured_media":1833,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[],"tags":[],"class_list":["post-5804","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"brizy_media":[],"_links":{"self":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/posts\/5804","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/comments?post=5804"}],"version-history":[{"count":1,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/posts\/5804\/revisions"}],"predecessor-version":[{"id":5805,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/posts\/5804\/revisions\/5805"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/media\/1833"}],"wp:attachment":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/media?parent=5804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/categories?post=5804"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/tags?post=5804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}