Kulankhulana kobisika kwa Quantum

Kulankhulana kobisika kwa Quantum

Kulankhulana kwachinsinsi kwa quantum, komwe kumadziwikanso kuti kugawa kwa makiyi a quantum, ndiyo njira yokhayo yolankhulirana yomwe yatsimikiziridwa kuti ndi yotetezeka kwambiri pamlingo wamakono wa chidziwitso cha anthu. Ntchito yake ndikugawa makiyi pakati pa Alice ndi Bob nthawi yeniyeni kuti atsimikizire chitetezo chokwanira cha kulumikizana.

Kulankhulana kotetezeka kwachikhalidwe ndiko kusankha pasadakhale ndikupatsa kiyi Alice ndi Bob akakumana, kapena kutumiza munthu wapadera kuti akapereke kiyiyo. Njirayi ndi yovuta komanso yokwera mtengo, ndipo nthawi zambiri imagwiritsidwa ntchito pazochitika zapadera monga kulumikizana pakati pa sitima yapamadzi ndi maziko. Kugawa makiyi a quantum kumatha kukhazikitsa njira ya quantum pakati pa Alice ndi Bob, ndikupatsa makiyi nthawi yeniyeni malinga ndi zosowa. Ngati kuwukira kapena kumvetsera mwachidwi kumachitika panthawi yogawa makiyi, Alice ndi Bob onse amatha kuwazindikira.

Kugawa makiyi a quantum ndi kuzindikira kwa fotoni imodzi ndi njira zazikulu zolumikizirana motetezeka ndi quantum. M'zaka zaposachedwa, mayunivesite akuluakulu ndi mabungwe ofufuza achita kafukufuku wambiri woyesera pa njira zazikulu zolumikizirana ndi quantum.Ma modulators a electro-opticndima laser opapatiza okhala ndi mzere wopapatizaKampani yathu yodziyimira payokha yakhala ikugwiritsidwa ntchito kwambiri mu njira zogawa makiyi a quantum. Tengani kugawa makiyi a quantum kosinthasintha kopitilira monga chitsanzo, monga momwe chithunzi chotsatirachi chikusonyezera.

Malinga ndi mfundo zomwe zili pamwambapa, electro-optical modulator (AM, PM) ndi gawo lofunikira la quantum key distribution test system, yomwe imatha kusintha amplitude kapena phase ya optical field, kuti chizindikiro cholowera chizitha kutumizidwa kudzera mu optical quantum. Dongosololi limafuna kuti light intensity modulator ikhale ndi high extinction ratio ndi low insertion loss kuti ipange high extinction ratio pulsed light signal.