{"id":725,"date":"2026-07-23T15:21:00","date_gmt":"2026-07-23T06:21:00","guid":{"rendered":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-07-23-quantum-entanglement-busy-telecom-fiber-vi\/"},"modified":"2026-07-23T15:21:00","modified_gmt":"2026-07-23T06:21:00","slug":"2026-07-23-quantum-entanglement-busy-telecom-fiber-vi","status":"publish","type":"briefing","link":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-07-23-quantum-entanglement-busy-telecom-fiber-vi\/","title":{"rendered":"R\u1ed1i l\u01b0\u1ee3ng t\u1eed v\u1eabn t\u1ed3n t\u1ea1i trong s\u1ee3i quang \u0111ang mang l\u01b0u l\u01b0\u1ee3ng internet th\u01b0\u1eddng"},"content":{"rendered":"

2026-07-23 15:20 KST<\/strong><\/p>\n

Nh\u00f3m Northwestern cho bi\u1ebft h\u1ecd g\u1eedi photon r\u1ed1i qua 24,4 km s\u1ee3i quang \u0111\u00e3 l\u1eafp \u0111\u1eb7t gi\u1eefa Evanston v\u00e0 trung t\u00e2m Chicago trong khi c\u00f9ng s\u1ee3i \u0111\u00f3 mang l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u dung l\u01b0\u1ee3ng cao, gi\u1eef fidelity tr\u00ean 94%. \u0110\u00e2y l\u00e0 tr\u00ecnh di\u1ec5n c\u00f9ng t\u1ed3n t\u1ea1i trong m\u1ea1ng th\u1eadt, kh\u00f4ng ph\u1ea3i d\u1ecbch v\u1ee5 internet l\u01b0\u1ee3ng t\u1eed cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n

\u0110\u00e3 ch\u1ee9ng minh g\u00ec<\/h2>\n

Nh\u00f3m g\u1eedi entangled photons qua 24,4 km s\u1ee3i quang \u0111\u00e3 l\u1eafp \u0111\u1eb7t gi\u1eefa campus Evanston c\u1ee7a Northwestern v\u00e0 c\u01a1 s\u1edf StarLight \u1edf trung t\u00e2m Chicago. C\u00f9ng s\u1ee3i quang \u0111\u00f3 mang hai k\u00eanh d\u1eef li\u1ec7u 800 gigabit m\u1ed7i gi\u00e2y v\u00e0 c\u00f4ng su\u1ea5t quang \u0111\u1ea1i di\u1ec7n cho m\u1ed9t li\u00ean k\u1ebft th\u01b0\u01a1ng m\u1ea1i t\u1ea3i \u0111\u1ea7y. Northwestern n\u00f3i entanglement fidelity v\u1eabn tr\u00ean 94% trong \u0111i\u1ec1u ki\u1ec7n \u0111\u00f3.<\/p>\n

B\u00e0i b\u00e1o cho th\u1ea5y g\u00ec<\/h2>\n

B\u00e0i Optica Quantum m\u00f4 t\u1ea3 O-band polarization-encoded entanglement distribution c\u00f9ng t\u1ed3n t\u1ea1i v\u1edbi C-band classical communications v\u00e0 t\u00edn hi\u1ec7u \u0111\u1ed3ng b\u1ed9 L-band \u0111\u1ed9 ch\u00ednh x\u00e1c picosecond. Nh\u00f3m gi\u1eef li\u00ean l\u1ea1c th\u01b0\u1eddng \u1edf C-band, \u0111\u01b0a photon l\u01b0\u1ee3ng t\u1eed sang v\u00f9ng O-band \u00edt nhi\u1ec5u h\u01a1n, r\u1ed3i d\u00f9ng l\u1ecdc h\u1eb9p v\u00e0 h\u1ec7 th\u1ed1ng White Rabbit timing. B\u00e0i b\u00e1o n\u00eau r\u1ed1i l\u01b0\u1ee3ng t\u1eed \u0111\u01b0\u1ee3c b\u1ea3o to\u00e0n trong \u0111i\u1ec1u ki\u1ec7n C-band ph\u00f9 h\u1ee3p cho truy\u1ec1n 36 Tbps.<\/p>\n

\"H\u00ecnh
H\u00ecnh \u1ea3nh do ONEPRESS t\u1ea1o: minh h\u1ecda lu\u1ed3ng d\u1eef li\u1ec7u th\u01b0\u1eddng v\u00e0 photon r\u1ed1i c\u00f9ng t\u1ed3n t\u1ea1i trong s\u1ee3i quang \u0111\u00f4 th\u1ecb hi\u1ec7n c\u00f3. \u0110\u00e2y kh\u00f4ng ph\u1ea3i \u1ea3nh th\u00ed nghi\u1ec7m th\u1eadt.<\/figcaption><\/figure>\n

V\u00ec sao quan tr\u1ecdng<\/h2>\n

M\u1ed9t r\u00e0o c\u1ea3n th\u1ef1c t\u1ebf c\u1ee7a m\u1ea1ng l\u01b0\u1ee3ng t\u1eed l\u00e0 chi ph\u00ed v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p khi ph\u1ea3i tri\u1ec3n khai dark fiber ri\u00eang. K\u1ebft qu\u1ea3 n\u00e0y cho th\u1ea5y \u0111\u01b0\u1eddng \u0111i \u0111\u1ec3 t\u00edn hi\u1ec7u l\u01b0\u1ee3ng t\u1eed v\u00e0 h\u1ea1 t\u1ea7ng vi\u1ec5n th\u00f4ng hi\u1ec7n c\u00f3 chia s\u1ebb c\u00f9ng m\u1ed9t s\u1ee3i quang. V\u1ec1 l\u00e2u d\u00e0i, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 th\u1ec3 quan tr\u1ecdng v\u1edbi truy\u1ec1n th\u00f4ng an to\u00e0n, \u0111i\u1ec7n to\u00e1n l\u01b0\u1ee3ng t\u1eed ph\u00e2n t\u00e1n v\u00e0 c\u1ea3m bi\u1ebfn l\u01b0\u1ee3ng t\u1eed ngo\u00e0i ph\u00f2ng th\u00ed nghi\u1ec7m ri\u00eang l\u1ebb.<\/p>\n

\u0110i\u1ec1u ch\u01b0a ph\u1ea3i<\/h2>\n

\u0110\u00e2y l\u00e0 tr\u00ecnh di\u1ec5n entanglement distribution. N\u00f3 kh\u00f4ng ph\u1ea3i quantum teleportation ho\u00e0n t\u1ea5t qua m\u1ea1ng \u0111\u00f4 th\u1ecb, c\u0169ng kh\u00f4ng ph\u1ea3i d\u1ecbch v\u1ee5 internet l\u01b0\u1ee3ng t\u1eed cho ng\u01b0\u1eddi d\u00f9ng. Northwestern n\u00f3i b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 th\u1ef1c hi\u1ec7n quantum teleportation gi\u1eefa c\u00e1c n\u00fat xa trong m\u1ea1ng vi\u1ec5n th\u00f4ng th\u1eadt. Kho\u1ea3ng c\u00e1ch, nhi\u1ec1u node, \u0111\u1ed9 tin c\u1eady v\u1eadn h\u00e0nh v\u00e0 ti\u00eau chu\u1ea9n v\u1eabn l\u00e0 v\u1ea5n \u0111\u1ec1 m\u1edf.<\/p>\n

C\u1ea7n ki\u1ec3m tra ti\u1ebfp g\u00ec<\/h2>\n

H\u00e3y d\u00f9ng th\u00f4ng b\u00e1o Northwestern \u0111\u1ec3 ki\u1ec3m tra tuy\u1ebfn 24,4 km, fidelity tr\u00ean 94% v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u th\u01b0\u1eddng. D\u00f9ng b\u00e0i Optica Quantum v\u00e0 b\u1ea3n th\u1ea3o t\u00e1c gi\u1ea3 \u0111\u1ec3 xem t\u00e1ch O-band\/C-band, hai k\u00eanh 800 Gbps, b\u1ed1i c\u1ea3nh 36 Tbps v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ed3ng b\u1ed9. Ti\u00eau \u0111\u1ec1 n\u00ean n\u00f3i v\u1ec1 ph\u00e2n ph\u1ed1i r\u1ed1i l\u01b0\u1ee3ng t\u1eed, kh\u00f4ng h\u00e0m \u00fd tri\u1ec3n khai th\u01b0\u01a1ng m\u1ea1i.<\/p>\n

Ngu\u1ed3n ch\u00ednh th\u1ee9c<\/h2>\n

Northwestern: tuy\u1ebfn 24,4 km, fidelity tr\u00ean 94% v\u00e0 b\u01b0\u1edbc ti\u1ebfp theo<\/a><\/p>\n

Optica Quantum: h\u1ed3 s\u01a1 b\u00e0i b\u00e1o, DOI v\u00e0 \u0111i\u1ec1u ki\u1ec7n th\u00ed nghi\u1ec7m<\/a><\/p>\n

arXiv: c\u00f9ng t\u1ed3n t\u1ea1i O-band\/C-band, b\u1ed1i c\u1ea3nh 36 Tbps v\u00e0 ph\u01b0\u01a1ng ph\u00e1p<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Nh\u00f3m Northwestern cho bi\u1ebft h\u1ecd g\u1eedi photon r\u1ed1i qua 24,4 km s\u1ee3i quang \u0111\u00e3 l\u1eafp \u0111\u1eb7t gi\u1eefa Evanston v\u00e0 trung t\u00e2m Chicago trong khi c\u00f9ng s\u1ee3i \u0111\u00f3 mang l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u dung l\u01b0\u1ee3ng cao, gi\u1eef fidelity tr\u00ean 94%. \u0110\u00e2y l\u00e0 tr\u00ecnh di\u1ec5n c\u00f9ng t\u1ed3n t\u1ea1i trong m\u1ea1ng th\u1eadt, kh\u00f4ng ph\u1ea3i d\u1ecbch v\u1ee5 internet l\u01b0\u1ee3ng t\u1eed cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-725","briefing","type-briefing","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing\/725","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing"}],"about":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/types\/briefing"}],"wp:attachment":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}