{"id":376255,"date":"2022-03-14T18:48:20","date_gmt":"2022-03-14T17:48:20","guid":{"rendered":"https:\/\/www.eenewseurope.com\/?p=376255"},"modified":"2022-03-14T18:48:20","modified_gmt":"2022-03-14T17:48:20","slug":"ordinateur-quantique-universel-tolerant-aux-erreurs","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/ordinateur-quantique-universel-tolerant-aux-erreurs\/","title":{"rendered":"Un ordinateur quantique universel tol\u00e9rant aux erreurs"},"content":{"rendered":"

Alice & Bob, une startup cofond\u00e9e en 2020 par Th\u00e9au Peronnin et Rapha\u00ebl Lescanne, deux physiciens issus de l’Ecole normale sup\u00e9rieure, vient de valider des avanc\u00e9es technologiques majeures dans le d\u00e9veloppement des ordinateurs quantiques et lever 27 millions d\u2019euros aupr\u00e8s de plusieurs investisseurs dont Bpifrance.<\/p>\n

Pour m\u00e9moire<\/strong><\/p>\n

Contrairement \u00e0 son homologue classique, un ordinateur quantique utilise des qubit pour effectuer ses calculs. Un qubit est un syst\u00e8me physique \u00e0 deux \u00e9tats not\u00e9s (1)\u00a0\u00a0et (2) , tout comme un bit classique, mais avec une propri\u00e9t\u00e9 cruciale: ces deux \u00e9tats peuvent \u00eatre plac\u00e9s dans une superposition quantique.<\/p>\n

Construire un ordinateur quantique id\u00e9al<\/span><\/strong><\/h2>\n

Jusqu\u2019ici, les erreurs demeuraient le principal obstacle \u00e0 la cr\u00e9ation d\u2019ordinateurs quantiques efficaces. La technologie d\u2019Alice & Bob de bits quantiques \u00ab\u00a0qubit\u00a0\u00bb\u00a0 supraconducteur autocorrectif, est le plus stable au monde. Il est capable de r\u00e9sister au bitflip pendant huit minutes, soit plus de 100.000 fois mieux que les r\u00e9sultats publi\u00e9s pr\u00e9c\u00e9demment. Mieux que Google et Amazon. Ce qubit supraconducteur, ouvre la voie \u00e0 une informatique quantique universelle et r\u00e9sistante aux erreurs. La soci\u00e9t\u00e9 d\u00e9veloppe actuellement son premier qubit logique, et utilisera ensuite une approche modulaire pour passer \u00e0 l\u2019\u00e9chelle sup\u00e9rieure.<\/p>\n

Un avenir ouvert<\/strong><\/p>\n

Il est fort probable que nous n\u2019utiliserons jamais d\u2019ordinateur quantique de bureau. Par contre, ils sont adapt\u00e9s<\/strong>\u00a0\u00e0 la r\u00e9solution de t\u00e2ches sp\u00e9cifiques connues pour \u00eatre trop complexes pour un ordinateur classique, tels que des probl\u00e8mes d\u2019optimisation ou d\u2019alg\u00e8bre lin\u00e9aire de grande dimension. Si vous \u00eates confront\u00e9 \u00e0 un probl\u00e8me dont la complexit\u00e9 augmente aussi rapidement que le nombre de variables. Un ordinateur quantique peut vous propulser vers la solution optimale et vous d\u00e9marquer de vos concurrents d\u2019une mani\u00e8re in\u00e9dite.<\/p>\n

Une approche originale<\/strong><\/p>\n

La conception du qubit d\u2019Alice &Bob, exploite une propri\u00e9t\u00e9 des \u00e9tats du \u00ab chat de Schr\u00f6dinger \u00bb afin de concevoir un qubit capable de \u00ab\u00a0supprimer nativement\u00a0\u00bb l’un des deux grands types d’erreur.<\/p>\n

Alice & Bob<\/a><\/p>\n

Autre article<\/p>\n

Fabrication du premier ordinateur quantique finlandais: VTT s\u2019associe \u00e0 la start-up IQM<\/a><\/h4>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Alice & Bob, une startup cofond\u00e9e en 2020 par Th\u00e9au Peronnin et Rapha\u00ebl Lescanne, deux physiciens issus de l’Ecole normale sup\u00e9rieure, vient de valider des avanc\u00e9es technologiques majeures dans le d\u00e9veloppement des ordinateurs quantiques et lever 27 millions d\u2019euros aupr\u00e8s de plusieurs investisseurs dont Bpifrance. Pour m\u00e9moire Contrairement \u00e0 son homologue classique, un ordinateur quantique […]<\/p>\n","protected":false},"author":11,"featured_media":376257,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[883],"tags":[],"domains":[47],"ppma_author":[1143],"class_list":["post-376255","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologies","domains-electronique-eci"],"acf":[],"yoast_head":"Un ordinateur quantique universel tol\u00e9rant aux erreurs ...<\/title>\n<meta name=\"description\" content=\"Alice & Bob, une startup cofond\u00e9e en 2020 par Th\u00e9au Peronnin et Rapha\u00ebl Lescanne, deux physiciens issus de l’Ecole normale sup\u00e9rieure, vient de...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/376255\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Un ordinateur quantique universel tol\u00e9rant aux erreurs\" \/>\n<meta property=\"og:description\" content=\"Alice & Bob, une startup cofond\u00e9e en 2020 par Th\u00e9au Peronnin et Rapha\u00ebl Lescanne, deux physiciens issus de l’Ecole normale sup\u00e9rieure, vient de valider des avanc\u00e9es technologiques majeures dans le d\u00e9veloppement des ordinateurs quantiques et lever 27 millions d\u2019euros aupr\u00e8s de plusieurs investisseurs dont Bpifrance. 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