{"id":751,"date":"2023-11-29T09:45:06","date_gmt":"2023-11-29T09:45:06","guid":{"rendered":"https:\/\/tastycounter.net\/index.php\/2023\/11\/29\/amazon-phat-trien-chip-luong-tu-tu-sua-loi\/"},"modified":"2023-11-29T09:45:06","modified_gmt":"2023-11-29T09:45:06","slug":"amazon-phat-trien-chip-luong-tu-tu-sua-loi","status":"publish","type":"post","link":"https:\/\/tastycounter.net\/index.php\/2023\/11\/29\/amazon-phat-trien-chip-luong-tu-tu-sua-loi\/","title":{"rendered":"Amazon ph\u00e1t tri\u1ec3n chip l\u01b0\u1ee3ng t\u1eed t\u1ef1 s\u1eeda l\u1ed7i"},"content":{"rendered":"<\/p>\n
\n

B\u1ed9 ph\u1eadn \u0111\u00e1m m\u00e2y Amazon Web Services (AWS) \u0111\u00e3 ch\u1ebf t\u1ea1o ra m\u1eabu chip l\u01b0\u1ee3ng t\u1eed c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng hi\u1ec7n t\u01b0\u1ee3ng “l\u1eadt bit” ph\u1ed5 bi\u1ebfn, c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u l\u1ed7i g\u1ea5p 100 l\u1ea7n th\u00f4ng th\u01b0\u1eddng”.<\/p>\n

M\u00e1y t\u00ednh truy\u1ec1n th\u1ed1ng x\u1eed l\u00fd th\u00f4ng tin d\u1ef1a v\u00e0o c\u00e1c bit nh\u1ecb ph\u00e2n – b\u1eadt ho\u1eb7c t\u1eaft, k\u00fd hi\u1ec7u l\u00e0 1 v\u00e0 0, trong khi \u0111\u00f3 m\u00e1y t\u00ednh l\u01b0\u1ee3ng t\u1eed s\u1eed d\u1ee5ng qubit l\u00e0m n\u1ec1n t\u1ea3ng, t\u1ee9c c\u00f3 th\u1ec3 x\u1eed l\u00fd 0, 1 ho\u1eb7c c\u1ea3 hai c\u00f9ng l\u00fac. M\u00e1y t\u00ednh l\u01b0\u1ee3ng t\u1eed c\u00f3 th\u1ec3 bi\u1ec3u th\u1ecb t\u1ea5t c\u1ea3 kh\u1ea3 n\u0103ng \u0111\u1ed3ng th\u1eddi n\u00ean ch\u00fang nhanh v\u00e0 m\u1ea1nh h\u01a1n nhi\u1ec1u so v\u1edbi m\u00e1y t\u00ednh th\u00f4ng th\u01b0\u1eddng.<\/p>\n

\"Nguy\u00ean
Nguy\u00ean m\u1eabu m\u1ed9t m\u1eabu chip l\u01b0\u1ee3ng t\u1eed c\u1ee7a Amazon. \u1ea2nh: AWS<\/figcaption><\/figure>\n

Tr\u00ean m\u00e1y t\u00ednh, vi\u1ec7c x\u1ea3y ra l\u1ed7i l\u00e0 \u0111i\u1ec1u kh\u00f4ng th\u1ec3 tr\u00e1nh kh\u1ecfi, k\u1ec3 c\u1ea3 v\u1edbi m\u00e1y t\u00ednh l\u01b0\u1ee3ng t\u1eed. M\u00e1y t\u00ednh th\u00f4ng th\u01b0\u1eddng s\u1ebd s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt s\u1eeda l\u1ed7i nh\u1eb1m b\u1ea3o v\u1ec7 b\u1ed9 nh\u1edb kh\u1ecfi hi\u1ec7n t\u01b0\u1ee3ng “l\u1eadt bit” (bit flip), h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng sai do bit 0 t\u1ef1 chuy\u1ec3n \u0111\u1ed5i sang 1 v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n

T\u00ecnh tr\u1ea1ng l\u1ed7i bit tr\u00ean m\u00e1y t\u00ednh l\u01b0\u1ee3ng t\u1eed th\u1eadm ch\u00ed ph\u1ed5 bi\u1ebfn h\u01a1n v\u00e0 kh\u00f3 s\u1eeda ch\u1eefa. C\u00e1c qubit c\u00f3 th\u1ec3 g\u1eb7p l\u1ed7i \u1edf c\u1ea3 hai chi\u1ec1u: l\u1eadt bit v\u00e0 l\u1eadt pha (phase flip – qubit \u0111\u1ed9t nhi\u00ean “\u0111\u1ed5i h\u01b0\u1edbng” ho\u1ea1t \u0111\u1ed9ng), c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 thi\u1ebfu ch\u00ednh x\u00e1c trong t\u00ednh to\u00e1n l\u01b0\u1ee3ng t\u1eed.<\/p>\n

<\/ins><\/div>\n

Nh\u1eefng ti\u1ebfn b\u1ed9 c\u00f4ng ngh\u1ec7 gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u1ef7 l\u1ec7 l\u1ed7i qubit. Hi\u1ec7n trung b\u00ecnh 1.000 ph\u00e9p t\u00ednh s\u1ebd g\u1eb7p m\u1ed9t l\u1ed7i, \u00edt h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi tr\u01b0\u1edbc \u0111\u00e2y l\u00e0 10. Tuy nhi\u00ean, t\u1ef7 l\u1ec7 l\u1ed7i qubit v\u1eabn c\u00f2n qu\u00e1 l\u1edbn, nh\u1ea5t l\u00e0 khi gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p.<\/p>\n

Chip l\u01b0\u1ee3ng t\u1eed m\u1edbi c\u1ee7a AWS s\u1edf h\u1eefu thu\u1eadt to\u00e1n l\u01b0\u1ee3ng t\u1eed c\u00f3 th\u1ec3 x\u1eed l\u00fd h\u00e0ng t\u1ef7 y\u00eau c\u1ea7u m\u00e0 kh\u00f4ng x\u1ea3y ra l\u1ed7i b\u1eb1ng c\u00e1ch t\u00e1ch c\u00e1c l\u1ea7n \u0111\u1ea3o bit kh\u1ecfi c\u00e1c l\u1ea7n \u0111\u1ea3o pha. Chip \u0111\u00e3 gi\u1ea3m th\u00e0nh c\u00f4ng l\u1ed7i l\u1eadt bit t\u1edbi 99%, th\u1eadm ch\u00ed trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p l\u00e0 100%.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

B\u1ed9 ph\u1eadn \u0111\u00e1m m\u00e2y Amazon Web Services (AWS) \u0111\u00e3 ch\u1ebf t\u1ea1o ra m\u1eabu chip l\u01b0\u1ee3ng t\u1eed c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng hi\u1ec7n t\u01b0\u1ee3ng “l\u1eadt bit” ph\u1ed5 bi\u1ebfn, c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u l\u1ed7i g\u1ea5p 100 l\u1ea7n th\u00f4ng th\u01b0\u1eddng”. M\u00e1y t\u00ednh truy\u1ec1n th\u1ed1ng x\u1eed l\u00fd th\u00f4ng tin d\u1ef1a v\u00e0o c\u00e1c bit nh\u1ecb ph\u00e2n – b\u1eadt ho\u1eb7c t\u1eaft, k\u00fd […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-751","post","type-post","status-publish","format-standard","hentry","category-khong-phan-loai"],"_links":{"self":[{"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/posts\/751","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/comments?post=751"}],"version-history":[{"count":0,"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/posts\/751\/revisions"}],"wp:attachment":[{"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/media?parent=751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/categories?post=751"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/tags?post=751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}