{"id":1489,"date":"2012-07-09T08:23:39","date_gmt":"2012-07-09T01:23:39","guid":{"rendered":"http:\/\/snt.com.vn\/blog\/?p=1489"},"modified":"2012-07-09T08:23:39","modified_gmt":"2012-07-09T01:23:39","slug":"anh-sang-xo%e1%ba%afn-cong-ngh%e1%bb%87-truy%e1%bb%81n-d%e1%bb%af-li%e1%bb%87u-m%e1%ba%a1ng-m%e1%bb%9bi-cho-phep-t%e1%bb%91c-d%e1%bb%99-t%e1%ba%a3i-d%e1%ba%a1t-256-terabitgiay","status":"publish","type":"post","link":"https:\/\/snt.com.vn\/blog\/anh-sang-xo%e1%ba%afn-cong-ngh%e1%bb%87-truy%e1%bb%81n-d%e1%bb%af-li%e1%bb%87u-m%e1%ba%a1ng-m%e1%bb%9bi-cho-phep-t%e1%bb%91c-d%e1%bb%99-t%e1%ba%a3i-d%e1%ba%a1t-256-terabitgiay\/","title":{"rendered":"\u00c1nh s\u00e1ng xo\u1eafn: c\u00f4ng ngh\u1ec7 truy\u1ec1n d\u1eef li\u1ec7u m\u1ea1ng m\u1edbi cho ph\u00e9p t\u1ed1c \u0111\u1ed9 t\u1ea3i \u0111\u1ea1t 2,56 terabit\/gi\u00e2y"},"content":{"rendered":"<p><a href=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/2012\/07\/AnhSangXoan.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1490\" title=\"defuse twisted lights\" src=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/2012\/07\/AnhSangXoan.jpg\" alt=\"defuse twisted lights\" width=\"500\" height=\"333\" \/><\/a><\/p>\n<p>M\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u M\u1ef9 t\u1eeb tr\u01b0\u1eddng \u0111\u1ea1i h\u1ecdc Nam California cho bi\u1ebft  h\u1ecd \b\u0111\u00e3 kh\u00e1m ph\u00e1 ra m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c truy\u1ec1n d\u1eef li\u1ec7u m\u1edbi cho ph\u00e9p t\u1ed1c \u0111\u1ed9  truy\u1ec1n t\u1ea3i \u0111\u1ea1t m\u1ee9c 2,56 terabit m\u1ed7i gi\u00e2y, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 trong m\u1ed9t gi\u00e2y ch\u00fang ta s\u1ebd t\u1ea3i v\u1ec1 m\u1ed9t  kho\u1ea3n dung l\u01b0\u1ee3ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 70 DVD!. Theo Alan Willner, gi\u00e1o s\u01b0 k\u1ef9  thu\u1eadt \u0111i\u1ec7n t\u1ea1i USC, cho bi\u1ebft c\u00f4ng ngh\u1ec7 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng xo\u1eafn (Twisted light) \u0111\u00e3 c\u00f3 t\u1eeb tr\u01b0\u1edbc tuy nhi\u00ean to\u00e0n \u0111\u1ed9i mu\u1ed1n n\u00e2ng cao t\u1ed1c \u0111\u1ed9 c\u1ee7a n\u00f3 h\u01a1n n\u1eefa. C\u1ee5 th\u1ec3, nh\u00f3m  c\u1ee7a \u00f4ng \u0111\u00e3 ph\u00e1t tri\u1ec3n m\u1ed9t c\u00f4ng ngh\u1ec7 li\u00ean quan \u0111\u1ebfn k\u1ef9 thu\u1eadt &#8220;s\u1ef1 bi\u1ebfn d\u1ea1ng  \u1ea3nh n\u1ed5i ba chi\u1ec1u&#8221; (phase holograms) \u0111\u1ec3 c\u00f3 th\u1ec3 xo\u00e1y 8 ch\u00f9m tia s\u00e1ng v\u00e0o  m\u1ed9t chu\u1ed7i xo\u1eafn c\u00f3 d\u1ea1ng nh\u01b0 c\u1ea5u tr\u00fac DNA.  K\u1ebft qu\u1ea3 c\u1ee7a qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u00f3 l\u00e0 c\u00e1c bit d\u1eef li\u1ec7u s\u1ebd truy\u1ec1n t\u1ea3i \u0111\u1ed9c l\u1eadp  tr\u00ean m\u1ed7i m\u1ed9t ch\u00f9m tia s\u00e1ng v\u1edbi t\u1ed1c \u0111\u1ed9 si\u00eau nhanh. Willner c\u00f2n cho bi\u1ebft  c\u00f4ng ngh\u1ec7 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u m\u1edbi n\u00e0y cho t\u1ed1c \u0111\u1ed9 nhanh g\u1ea5p 85 ng\u00e0n l\u1ea7n so  v\u1edbi t\u1ed1c \u0111\u1ed9 b\u0103ng th\u00f4ng Internet hi\u1ec7n nay.<\/p>\n<p> Theo nh\u1eefng nh\u00e0 nghi\u00ean c\u1ee9u, \u1ee9ng d\u1ee5ng c\u1ee7a c\u00f4ng ngh\u1ec7 m\u1edbi n\u00e0y gi\u00fap cho vi\u1ec7c  li\u00ean k\u1ebft th\u00f4ng tin v\u1edbi v\u1ec7 tinh \u0111\u01b0\u1ee3c d\u1ec5 d\u00e0ng h\u01a1n nh\u1edd v\u00e0o t\u1ed1c \u0111\u1ed9 truy\u1ec1n  t\u1ea3i cao. B\u00ean c\u1ea1nh \u0111\u00f3, h\u1ecd hi v\u1ecdng c\u00f4ng ngh\u1ec7 n\u00e0y s\u1ebd s\u1edbm \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong  nh\u1eefng s\u1ee3i c\u00e1p quang \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t b\u1edfi nh\u1eefng nh\u00e0 cung c\u1ea5p Internet. N\u1ebfu  c\u00f4ng ngh\u1ec7 n\u00e0y s\u1edbm \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i, ch\u00fang ta c\u00f3 quy\u1ec1n hi v\u1ecdng trong  t\u01b0\u01a1ng lai kh\u00f4ng xa s\u1ebd t\u1ea3i \u0111\u01b0\u1ee3c c\u00f9ng l\u00fac 252 ng\u00e0n DVD trong m\u1ed9t gi\u1edd \u0111\u1ed3ng  h\u1ed3!<\/p>\n<div><em><strong>Theo BGR<\/strong><\/em><\/div>\n","protected":false},"excerpt":{"rendered":"<p>M\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u M\u1ef9 t\u1eeb tr\u01b0\u1eddng \u0111\u1ea1i h\u1ecdc Nam California cho bi\u1ebft h\u1ecd \b\u0111\u00e3 kh\u00e1m ph\u00e1 ra<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.2.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u00c1nh s\u00e1ng xo\u1eafn: c\u00f4ng ngh\u1ec7 truy\u1ec1n d\u1eef li\u1ec7u m\u1ea1ng m\u1edbi cho ph\u00e9p t\u1ed1c \u0111\u1ed9 t\u1ea3i \u0111\u1ea1t 2,56 terabit\/gi\u00e2y - 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