{"id":473922,"date":"2025-02-27T18:17:53","date_gmt":"2025-02-27T17:17:53","guid":{"rendered":"https:\/\/www.ecinews.fr\/?p=473922"},"modified":"2025-02-27T18:17:53","modified_gmt":"2025-02-27T17:17:53","slug":"amazon-annonce-la-puce-quantique-bosonique-ocelot","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/amazon-annonce-la-puce-quantique-bosonique-ocelot\/","title":{"rendered":"Amazon annonce la puce quantique bosonique \u00ab\u00a0Ocelot\u00a0\u00bb"},"content":{"rendered":"

Amazon Web Services (AWS) a annonc\u00e9 son dispositif quantique supraconducteur de premi\u00e8re g\u00e9n\u00e9ration, appel\u00e9 Ocelot, dont l’architecture \u00e9volutive permettrait de r\u00e9duire de 90 % le besoin de correction d’erreurs.<\/h2>\n

Cela pourrait \u00eatre la cl\u00e9 de la construction d’ordinateurs quantiques pratiques avec des millions de qubits. Traditionnellement, les qubits sont tr\u00e8s sensibles au bruit et n\u00e9cessitent une correction d’erreur importante.<\/p>\n

Ocelot a \u00e9t\u00e9 d\u00e9velopp\u00e9 par une \u00e9quipe de l’AWS Center for Quantum Computing du California Institute of Technology, <\/span><\/p>\n

Ocelot est bas\u00e9 sur deux puces de silicium d’une surface d’environ 1 centim\u00e8tre carr\u00e9, connect\u00e9es face \u00e0 face et prenant en sandwich une couche de tantale supraconducteur pouvant constituer la base des oscillateurs.<\/p>\n

La puce de m\u00e9moire \u00e0 qubit logique Ocelot comprend cinq qubits de donn\u00e9es de chat ( cat-Qubit), chacun abritant un oscillateur utilis\u00e9 pour stocker les donn\u00e9es quantiques. L’oscillateur de stockage de chaque Qubit de chat est connect\u00e9 \u00e0 deux Qubits de transmon auxiliaires pour la d\u00e9tection des erreurs d’inversion de phase et \u00e0 un circuit tampon non lin\u00e9aire utilis\u00e9 pour supprimer les erreurs d’inversion de bit.<\/p>\n

Parmi les revendications de ce composant figure une architecture \u00e9volutive qui prend en charge la correction d’erreurs bosoniques. Celle-ci serait sup\u00e9rieure \u00e0 d’autres formes de correction d’erreurs quantiques, qui peuvent utiliser quelque chose d’aussi simple que la redondance multiple et le vote \u00e0 la majorit\u00e9. Contrairement aux syst\u00e8mes traditionnels bas\u00e9s sur les qubits, les codes bosoniques exploitent l’espace infini de Hilbert d’un seul mode bosonique pour fournir une protection intrins\u00e8que contre certains types d’erreurs.<\/p>\n

L’Ocelot est \u00e9galement pr\u00e9sent\u00e9 comme la premi\u00e8re mise en \u0153uvre d’une porte \u00e0 bruit biais\u00e9 et comme un qubit supraconducteur \u00e0 la pointe de la technologie, avec des temps de basculement de bits d’une seconde et des temps de basculement de phase de 20 microsecondes.<\/p>\n

Les auteurs d’AWS ont d\u00e9clar\u00e9 que l’\u00e9volution d’Ocelot vers un ordinateur quantique complet ne n\u00e9cessiterait qu’un dixi\u00e8me des ressources des autres approches quantiques.<\/p>\n

Une partie de l’approche d’Ocelot consiste \u00e0 partager l’information contenue dans chaque qubit logique entre plusieurs qubits physiques, prot\u00e9geant ainsi l’information du bruit ext\u00e9rieur. Les erreurs peuvent alors \u00eatre d\u00e9tect\u00e9es et corrig\u00e9es d’une mani\u00e8re analogue aux m\u00e9thodes classiques de correction d’erreurs utilis\u00e9es dans le stockage et la communication num\u00e9riques.<\/p>\n

L’architecture cat-qubit d’Ocelot est nomm\u00e9e d’apr\u00e8s le chat mort\/vivant de Schroedinger et AWS travaille sur des versions de nouvelle g\u00e9n\u00e9ration d’Ocelot afin de r\u00e9duire davantage les taux d’erreurs logiques.<\/p>\n

AWS rejoint Microsoft et Google dans le lancement d’importants composants d’informatique quantique. Microsoft a annonc\u00e9 \u00ab\u00a0Majorana1\u00a0\u00bb la semaine derni\u00e8re et Google a annonc\u00e9 \u00ab\u00a0Willow\u00a0\u00bb en d\u00e9cembre 2024.<\/p>\n

Liens et articles connexes :<\/h4>\n

www.aboutamazon.com<\/a><\/p>\n

Articles de presse :<\/h4>\n

\u00c0 l’int\u00e9rieur du transistor de Microsoft pour l’\u00e8re quantique<\/a><\/p>\n

Google annonce le processeur d’IA quantique \u00ab\u00a0Willow <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Amazon Web Services (AWS) a annonc\u00e9 son dispositif quantique supraconducteur de premi\u00e8re g\u00e9n\u00e9ration, appel\u00e9 Ocelot, dont l’architecture \u00e9volutive permettrait de r\u00e9duire de 90 % le besoin de correction d’erreurs. Cela pourrait \u00eatre la cl\u00e9 de la construction d’ordinateurs quantiques pratiques avec des millions de qubits. Traditionnellement, les qubits sont tr\u00e8s sensibles au bruit et n\u00e9cessitent […]<\/p>\n","protected":false},"author":2,"featured_media":473905,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3669,883],"tags":[889,920,913,3676,1603,2595],"domains":[47],"ppma_author":[3631],"class_list":["post-473922","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouvelles","category-technologies","tag-analog-fr","tag-artificialintelligence-fr","tag-materials-processes-fr","tag-quantique-fr","tag-quantique","tag-qubits","domains-electronique-eci"],"acf":[],"yoast_head":"Amazon annonce la puce quantique bosonique "Ocelot ...<\/title>\n<meta name=\"description\" content=\"AWS a annonc\u00e9 un dispositif quantique supraconducteur appel\u00e9 Ocelot, qui, selon elle, peut r\u00e9duire de 90 % le besoin de correction d'erreurs.\" \/>\n<meta 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