{"id":22284,"date":"2026-11-09T19:31:00","date_gmt":"2026-11-09T15:31:00","guid":{"rendered":"https:\/\/eternos974.live\/?p=22284"},"modified":"2026-11-09T05:24:01","modified_gmt":"2026-11-09T01:24:01","slug":"quantique-sept-entreprises-francaises-plusieurs-paris","status":"publish","type":"post","link":"https:\/\/eternos974.live\/index.php\/2026\/11\/09\/quantique-sept-entreprises-francaises-plusieurs-paris\/","title":{"rendered":"Quantique : sept entreprises fran\u00e7aises, plusieurs paris"},"content":{"rendered":"<p><p>L\u2019informatique quantique fran\u00e7aise ne repose pas sur une seule machine ni sur une technologie d\u00e9j\u00e0 victorieuse. Le panorama de sept entreprises publi\u00e9 par Presse-citron montre au contraire des approches concurrentes et compl\u00e9mentaires. Certaines fabriquent des processeurs, d\u2019autres travaillent sur leur connexion ou sur les logiciels qui pourraient en exploiter les capacit\u00e9s.<\/p>\n<p>Le fil conducteur est le m\u00eame : contr\u00f4ler des syst\u00e8mes quantiques suffisamment bien pour effectuer des calculs utiles. La difficult\u00e9 ne se r\u00e9sume pas au nombre de qubits annonc\u00e9. Il faut aussi limiter les erreurs, faire fonctionner les op\u00e9rations ensemble et d\u00e9montrer un int\u00e9r\u00eat face aux meilleures m\u00e9thodes classiques. Une feuille de route industrielle reste un objectif, m\u00eame lorsqu\u2019elle s\u2019accompagne d\u2019un financement important.<\/p>\n<\/p>\n<p><h2>Atomes neutres et qubits de chat<\/h2>\n<p>Pasqal utilise des atomes neutres, maintenus dans des pi\u00e8ges optiques et pilot\u00e9s par laser. Sa documentation d\u00e9crit notamment des machines analogiques : elles permettent de programmer l\u2019\u00e9volution d\u2019un syst\u00e8me physique. Cette approche ne se compare pas simplement, qubit pour qubit, \u00e0 toutes les autres architectures.<\/p>\n<p>Alice &#038; Bob mise sur les qubits de chat supraconducteurs, con\u00e7us pour r\u00e9sister \u00e0 un type d\u2019erreur. L\u2019entreprise vise une machine universelle de 100 qubits logiques \u00e0 l\u2019horizon 2030. Ce sont des qubits prot\u00e9g\u00e9s par correction d\u2019erreurs, \u00e0 distinguer des composants physiques n\u00e9cessaires \u00e0 leur r\u00e9alisation. Le calendrier annonc\u00e9 ne constitue pas une capacit\u00e9 d\u00e9j\u00e0 livr\u00e9e.<\/p>\n<\/p>\n<p><h2>Carbone, lumi\u00e8re et silicium<\/h2>\n<p>C12 d\u00e9veloppe des qubits fond\u00e9s sur des nanotubes de carbone. Quandela explore la photonique, qui emploie la lumi\u00e8re pour porter l\u2019information quantique. Son syst\u00e8me Lucy s\u2019inscrit dans un programme europ\u00e9en d\u2019acc\u00e8s au calcul quantique. Employer des photons ne signifie pas que l\u2019ensemble de la machine se passe de contraintes mat\u00e9rielles ou thermiques.<\/p>\n<p>Quobly travaille pour sa part sur des qubits de spin dans le silicium. L\u2019int\u00e9r\u00eat industriel recherch\u00e9 est de rapprocher leur fabrication des proc\u00e9d\u00e9s des semi-conducteurs. L\u00e0 encore, d\u00e9montrer une op\u00e9ration sur une puce et produire \u00e0 grande \u00e9chelle une machine corrig\u00e9e des erreurs repr\u00e9sentent des \u00e9tapes diff\u00e9rentes.<\/p>\n<\/p>\n<p><h2>Connecter les machines et pr\u00e9parer les usages<\/h2>\n<p>Welinq d\u00e9veloppe des technologies d\u2019interconnexion et de m\u00e9moire quantique : le processeur n\u2019est qu\u2019une brique d\u2019un futur syst\u00e8me de calcul. Qubit Pharmaceuticals se situe du c\u00f4t\u00e9 de la simulation mol\u00e9culaire et de la recherche de m\u00e9dicaments, \u00e0 l\u2019interface entre logiciels, calcul intensif et m\u00e9thodes quantiques.<\/p>\n<p>La richesse de cette fili\u00e8re tient donc \u00e0 sa diversit\u00e9. Elle ne prouve pas que les applications promises sont d\u00e9j\u00e0 plus efficaces que leurs \u00e9quivalents classiques. Pour suivre les progr\u00e8s, les indicateurs les plus utiles restent les r\u00e9sultats reproductibles, la qualit\u00e9 des op\u00e9rations et les d\u00e9monstrations sur des probl\u00e8mes pr\u00e9cis. Les annonces de lev\u00e9es de fonds ou de millions de qubits d\u00e9crivent des moyens et des ambitions ; elles ne remplacent pas cette validation.<\/p>\n<p><small>Sources : Article de r\u00e9f\u00e9rence \u00b7 docs.pasqal.com \u00b7 alice-bob.com \u00b7 c12qe.com \u00b7 quandela.com \u00b7 quobly.io \u00b7 welinq.fr.<\/small><\/p>\n<\/p>\n<h2>Sources<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.presse-citron.net\/le-saviez-vous-la-france-est-une-championne-du-quantique-ces-7-pepites-entendent-revolutionner-le-domaine\/\" target=\"_blank\" rel=\"nofollow noopener\">Source 1<\/a><\/li>\n<li><a href=\"https:\/\/docs.pasqal.com\/qpu-emulators\/qpus\/\" target=\"_blank\" rel=\"nofollow noopener\">Source 2<\/a><\/li>\n<li><a href=\"https:\/\/alice-bob.com\/newsroom\/alice-bob-quantum-computing-roadmap\/\" target=\"_blank\" rel=\"nofollow noopener\">Source 3<\/a><\/li>\n<li><a href=\"https:\/\/www.c12qe.com\/technology\" target=\"_blank\" rel=\"nofollow noopener\">Source 4<\/a><\/li>\n<li><a href=\"https:\/\/www.quandela.com\/qpus\/lucy\/\" target=\"_blank\" rel=\"nofollow noopener\">Source 5<\/a><\/li>\n<li><a href=\"https:\/\/www.quobly.io\/products\/\" target=\"_blank\" rel=\"nofollow noopener\">Source 6<\/a><\/li>\n<li><a href=\"https:\/\/www.welinq.fr\/products\" target=\"_blank\" rel=\"nofollow noopener\">Source 7<\/a><\/li>\n<\/ul>\n<p>\u00c0 tr\u00e8s vite sur <a href=\"https:\/\/eternos974.live\" target=\"_blank\" rel=\"noopener\"><strong>l\u2019EternoStation<\/strong><\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Atomes, photons, silicium : sept entreprises fran\u00e7aises explorent le quantique. Leurs technologies, leurs usages vis\u00e9s et les d\u00e9fis encore \u00e0 relever.<\/p>\n","protected":false},"author":1,"featured_media":22285,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"cybocfi_hide_featured_image":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[393],"tags":[],"class_list":["post-22284","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-infos"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"Atomes, photons, silicium : sept entreprises fran\u00e7aises explorent le quantique. 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