Duniya ta karya madaidaicin maɓalli a karon farko

Duniya ta karya madaidaicin maɓalli a karon farko. Maɓallin maɓalli na ainihin tushen hoto ɗaya ya ƙaru da kashi 79%.

Rarraba Maɓalli na Quantum(QKD) fasaha ce ta ɓoyayyen da ya dogara akan ƙa'idodin zahiri na adadi kuma yana nuna babban yuwuwar haɓaka tsaro na sadarwa. Wannan fasaha tana watsa maɓallan ɓoyewa ta hanyar amfani da jimlar adadin photons ko wasu barbashi. Tunda ba za a iya maimaitawa ko auna waɗannan jihohin ba ba tare da canza jihohinsu ba, hakan yana ƙara wahala ga ɓangarori masu ɓarna don kutse abubuwan sadarwa tsakanin bangarorin biyu ba tare da an gano su ba. Sakamakon wahalar shirya tushen hoto guda ɗaya na gaskiya (SPS), yawancin tsarin rarraba maɓalli na ƙididdigewa (QKD) a halin yanzu sun dogara ne akan ragewa.hanyoyin haskewanda ke yin kwatankwacin photon guda ɗaya, kamar ƙwanƙwasa mai ƙarancin ƙarfi. Tun da waɗannan nau'ikan bugun laser na iya ƙunsar babu photons ko na'urar daukar hoto da yawa, kusan kashi 37% na bugun jini da ake amfani da su a cikin tsarin za a iya amfani da su don samar da maɓallin tsaro. Masu bincike na kasar Sin kwanan nan sun yi nasarar shawo kan iyakokin tsarin rarraba mabuɗin ƙididdigewa (QKD). Sun yi amfani da ainihin tushen hoto guda ɗaya (SPS, wato, tsarin da ke da ikon fitar da hoto ɗaya akan buƙata).

Babban burin masu binciken shine gina tsarin jiki wanda zai iya fitar da haske mai haske akan buƙatu, ta yadda za a shawo kan ƙayyadaddun ƙayyadaddun ƙayyadaddun abubuwan da aka yi amfani da su a baya don gina tsarin rarraba maɓalli (QKD). Fata su shine cewa wannan tsarin zai iya haɓaka aminci da aikin fasahar rarraba maɓalli na ƙididdiga (QKD), ta yadda zai aza harsashin tura shi nan gaba a cikin mahalli na gaske. A halin yanzu, gwajin ya sami sakamako mai ban sha'awa sosai saboda an gano SPS ɗin su yana da inganci sosai kuma yana ƙaruwa sosai.Tsarin QKDyana haifar da maɓallan tsaro. Gabaɗaya, waɗannan binciken suna nuna yuwuwar tsarin QKD na tushen SPS, yana nuna cewa ayyukansu na iya zarce na tsarin QKD na tushen WCP. "Mun nuna a karon farko cewa aikin QKD dangane da SPS ya wuce ainihin ƙimar WCP," in ji masu binciken. A cikin filin gwajin QKD na tashar tashar sararin samaniya ta kyauta tare da asarar 14.6 (1.1) dB, mun sami madaidaicin maɓalli mai mahimmanci (SKR) na 1.08 × 10−3 rago a kowace bugun jini, wanda ya kasance 79% mafi girma fiye da ainihin iyakar tsarin QKD bisa ga rashin ƙarfi mai haske. Koyaya, a halin yanzu, matsakaicin asarar tashoshi na tsarin SPS-QKD har yanzu yana ƙasa da na tsarin WCP-QKD. Ƙananan asarar tashar da masu binciken suka lura a cikin tsarin rarraba maɓalli na ƙididdigewa (QKD) bai samo asali daga tsarin da kansa ba, amma an danganta shi da ragowar tasirin hoto mai yawa a cikin ƙa'idar da ba ta da kullun da suke gudana. A matsayin wani ɓangare na bincike na gaba, suna fatan haɓaka juriya na asarar tsarin ta hanyar haɓaka aikin tushen hoto ɗaya (SPS) a ƙasan layin na tsarin ko gabatar da jihohin bait a cikin tsarin. An yi imanin cewa ci gaba da ci gaban fasaha zai inganta haɓaka haɓaka maɓalli na ƙididdiga (QKD) zuwa aikace-aikace na yau da kullun.