Kutaurirana kwakavanzika kweQuantum

Kutaurirana kwakavanzika kweQuantum

Kutaurirana kwakavanzika kweQuantum, kunozivikanwawo sekuti quantum key distribution, ndiyo chete nzira yekutaurirana yakaratidzwa kuti yakachengeteka zvachose padanho rekuziva remunhu parizvino. Basa rayo nderekuparadzira kiyi pakati paAlice naBob panguva chaiyo kuti ive nechokwadi chekuti kutaurirana kwakachengeteka.

Kutaurirana kwakachengeteka kwechinyakare ndekwekusarudza uye kupa kiyi kana Alice naBob vasangana, kana kutumira munhu akakosha kuti aendese kiyi. Nzira iyi haina kunaka uye inodhura, uye inowanzo shandiswa mumamiriro ezvinhu akadai sekutaurirana pakati pengarava yepasi pemvura nechigadziko. Kugoverwa kwekiyi yeQuantum kunogona kugadzira nzira yequantum pakati paAlice naBob, uye kupa makiyi panguva chaiyo zvichienderana nezvinodiwa. Kana kurwiswa kana kuteererwa kwezwi kukaitika panguva yekugoverwa kwekiyi, vese Alice naBob vanogona kuzviona.

Kugoverwa kwemakiyi equantum uye kuonekwa kwephoton imwe chete ndiyo matekinoroji akakosha ekutaurirana kwakachengeteka kwequantum. Mumakore achangopfuura, mayunivhesiti makuru nemasangano ekutsvagisa akaita huwandu hwakawanda hwezvidzidzo zvekuyedza pamatekinoroji akakosha ekutaurirana kwequantum.Mamodulator eElectro-opticuyema lasers akamanikana emutsetse wakamanikanaYakagadzirwa yakazvimiririra nekambani yedu yakashandiswa zvakanyanya muhurongwa hwekugovera makiyi e quantum. Tora kugoverwa kwemakiyi e quantum anochinjika semuenzaniso, sezvakaratidzwa mumufananidzo unotevera.

Zvichienderana nepfungwa dziri pamusoro apa, electro-optical modulator (AM, PM) chikamu chakakosha che quantum key distribution test system, iyo ine simba rekugadzirisa amplitude kana phase ye optical field, kuitira kuti chiratidzo chekupinda chigone kutumirwa kuburikidza ne optical quantum. Sisitimu iyi inoda kuti light intensity modulator ive ne high extinction ratio uye low insertion loss kuitira kuti igadzire high extinction ratio pulsed light signal.