{"id":25340,"date":"2020-06-26T08:21:18","date_gmt":"2020-06-26T01:21:18","guid":{"rendered":"https:\/\/ttud.com.vn\/?p=25340"},"modified":"2021-11-08T22:02:27","modified_gmt":"2021-11-08T15:02:27","slug":"cac-nha-khoa-hoc-thuc-hien-buoc-quan-trong-doi-voi-truyen-thong-luong-tu","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/cac-nha-khoa-hoc-thuc-hien-buoc-quan-trong-doi-voi-truyen-thong-luong-tu\/","title":{"rendered":"C\u00e1c nh\u00e0 khoa h\u1ecdc th\u1ef1c hi\u1ec7n b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ed1i v\u1edbi truy\u1ec1n th\u00f4ng l\u01b0\u1ee3ng t\u1eed"},"content":{"rendered":"\n

M\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ee9ng minh giao ti\u1ebfp l\u01b0\u1ee3ng t\u1eed an to\u00e0n gi\u1eefa hai tr\u1ea1m m\u1eb7t \u0111\u1ea5t, v\u1edbi kho\u1ea3ng c\u00e1ch k\u1ef7 l\u1ee5c l\u00e0 1.120 km v\u00e0 kh\u00f4ng c\u00f3 r\u01a1le an ninh trung gian. \u0110\u00e2y \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t b\u01b0\u1edbc ti\u1ebfn m\u1edbi h\u01b0\u1edbng t\u1edbi \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a truy\u1ec1n th\u00f4ng l\u01b0\u1ee3ng t\u1eed.<\/p>\n\n\n\n

\"\"\/<\/figure><\/div>\n\n\n\n

Ph\u00e2n ph\u1ed1i kh\u00f3a l\u01b0\u1ee3ng t\u1eed (QKD) \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u01b0 m\u1ed9t c\u00e1ch an to\u00e0n \u0111\u1ec3 cho ph\u00e9p trao \u0111\u1ed5i tin nh\u1eafn \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a gi\u1eefa nh\u1eefng ng\u01b0\u1eddi d\u00f9ng t\u1eeb xa.<\/p>\n\n\n\n

Trong c\u00e1c nghi\u00ean c\u1ee9u tr\u01b0\u1edbc \u0111\u00e2y, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ch\u1ee9ng minh QKD trong ph\u00f2ng th\u00ed nghi\u1ec7m v\u1ec1 s\u1ee3i quang v\u00e0 gi\u1eefa v\u1ec7 tinh v\u00e0 tr\u1ea1m m\u1eb7t \u0111\u1ea5t. Nh\u01b0ng QKD gi\u1eefa hai ng\u01b0\u1eddi d\u00f9ng tr\u00ean m\u1eb7t \u0111\u1ea5t c\u1ea7n c\u00f3 r\u01a1le \u0111\u00e1ng tin c\u1eady, ho\u1eb7c b\u1ed9 l\u1eb7p l\u01b0\u1ee3ng t\u1eed, \u0111\u1ec3 tr\u00e1nh m\u1ea5t t\u00edn hi\u1ec7u v\u00e0 k\u00e9o d\u00e0i kho\u1ea3ng c\u00e1ch, \u0111i\u1ec1u n\u00e0y g\u00e2y ra r\u1ee7i ro b\u1ea3o m\u1eadt.<\/p>\n\n\n\n

V\u00ed d\u1ee5, trong th\u1eed nghi\u1ec7m QKD tr\u00ean v\u1ec7 tinh m\u1eb7t \u0111\u1ea5t, m\u1ed9t kh\u00f3a l\u01b0\u1ee3ng t\u1eed \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ea1o ra, \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i b\u1edfi v\u1ec7 tinh l\u01b0\u1ee3ng t\u1eed c\u1ee7a Trung Qu\u1ed1c t\u1eeb c\u00e1c th\u00ed nghi\u1ec7m l\u01b0\u1ee3ng t\u1eed \u1edf quy m\u00f4 kh\u00f4ng gian. V\u1ec7 tinh c\u00f3 t\u00ean Micius, c\u00f3 t\u1ea5t c\u1ea3 th\u00f4ng tin v\u1ec1 kh\u00f3a l\u01b0\u1ee3ng t\u1eed. N\u1ebfu Micius b\u1ecb hack, c\u00f3 nguy c\u01a1 r\u00f2 r\u1ec9 th\u00f4ng tin.<\/p>\n\n\n\n

Trong nghi\u00ean c\u1ee9u m\u1edbi nh\u1ea5t \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u1ef1c tuy\u1ebfn b\u1edfi t\u1ea1p ch\u00ed Nature<\/em>, v\u1ec7 tinh Micius \u0111\u00e3 g\u1eedi c\u00e1c c\u1eb7p photon v\u01b0\u1edbng v\u00edu \u0111\u1ebfn hai tr\u1ea1m m\u1eb7t \u0111\u1ea5t c\u00e1ch nhau 1.120 km; \u1edf Delingha thu\u1ed9c t\u1ec9nh Thanh H\u1ea3i v\u00e0 Nanshan g\u1ea7n Urumqi \u1edf khu t\u1ef1 tr\u1ecb T\u00e2n C\u01b0\u01a1ng. M\u1ed9t li\u00ean k\u1ebft l\u01b0\u1ee3ng t\u1eed b\u1ea3o m\u1eadt gi\u1eefa hai tr\u1ea1m m\u1eb7t \u0111\u1ea5t \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp kh\u00f4ng c\u00f3 r\u01a1le \u0111\u00e1ng tin c\u1eady v\u00e0 v\u1ec7 tinh Micius kh\u00f4ng c\u00f3 th\u00f4ng tin v\u1ec1 kh\u00f3a b\u1ea3o m\u1eadt.<\/p>\n\n\n\n

Pan Jianwei, nh\u00e0 v\u1eadt l\u00fd l\u01b0\u1ee3ng t\u1eed n\u1ed5i ti\u1ebfng v\u00e0 l\u00e0 t\u00e1c gi\u1ea3 c\u1ee7a nghi\u00ean c\u1ee9u, n\u00f3i r\u1eb1ng nghi\u00ean c\u1ee9u n\u00e0y l\u00e0m t\u0103ng kho\u1ea3ng c\u00e1ch an to\u00e0n c\u1ee7a QKD m\u00e0 kh\u00f4ng c\u1ea7n chuy\u1ec3n ti\u1ebfp \u0111\u00e1ng tin c\u1eady tr\u00ean m\u1eb7t \u0111\u1ea5t v\u00e0 \u0111\u1ea3m b\u1ea3o li\u00ean l\u1ea1c an to\u00e0n, ngay c\u1ea3 khi v\u1ec7 tinh b\u1ecb x\u00e2m ph\u1ea1m. \u0110\u00e2y l\u00e0 m\u1ed9t c\u1ea3i ti\u1ebfn \u0111\u00e1ng k\u1ec3 trong \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a truy\u1ec1n th\u00f4ng an to\u00e0n l\u01b0\u1ee3ng t\u1eed.<\/p>\n\n\n\n

S\u1ef1 v\u01b0\u1edbng v\u00edu l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1eb7c bi\u1ec7t x\u1ea3y ra trong c\u01a1 h\u1ecdc l\u01b0\u1ee3ng t\u1eed. N\u1ebfu hai h\u1ea1t b\u1ecb v\u01b0\u1edbng v\u00edu, c\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a ch\u00fang \u1edf tr\u1ea1ng th\u00e1i l\u01b0\u1ee3ng t\u1eed duy nh\u1ea5t, do \u0111\u00f3, m\u1ed9t khi c\u00e1c t\u00ednh ch\u1ea5t c\u1ee7a ch\u00fang \u0111\u01b0\u1ee3c \u0111o, ch\u00fang v\u1eabn t\u01b0\u01a1ng quan v\u1edbi nhau, b\u1ea5t k\u1ec3 ch\u00fang c\u00e1ch nhau bao xa.<\/p>\n\n\n\n

P.A.T (NASATI), theo Xinhua, 6\/2020<\/em> ngu\u1ed3n: vista.gov.vn<\/p>\n\n\n\n

C\u00e1c nh\u00e0 khoa h\u1ecdc th\u1ef1c hi\u1ec7n b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ed1i v\u1edbi truy\u1ec1n th\u00f4ng l\u01b0\u1ee3ng t\u1eed – C\u1ed5ng th\u00f4ng tin Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 (vista.gov.vn)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

M\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ee9ng minh giao ti\u1ebfp l\u01b0\u1ee3ng t\u1eed an to\u00e0n gi\u1eefa hai tr\u1ea1m m\u1eb7t \u0111\u1ea5t, v\u1edbi kho\u1ea3ng c\u00e1ch k\u1ef7 l\u1ee5c l\u00e0 1.120 km v\u00e0 kh\u00f4ng c\u00f3 r\u01a1le an ninh trung gian. \u0110\u00e2y \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t b\u01b0\u1edbc ti\u1ebfn m\u1edbi h\u01b0\u1edbng t\u1edbi \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a truy\u1ec1n th\u00f4ng l\u01b0\u1ee3ng t\u1eed. […]<\/p>\n","protected":false},"author":25,"featured_media":25341,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-25340","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/25340","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=25340"}],"version-history":[{"count":4,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/25340\/revisions"}],"predecessor-version":[{"id":29749,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/25340\/revisions\/29749"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/25341"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=25340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=25340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=25340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}