Lefatše le tlotse moeli oa senotlolo sa quantum ka lekhetlo la pele. Sekhahla sa bohlokoa sa mohloli oa 'nete oa photon e nyolohile ka 79%.
Kabo ea Key Quantum(QKD) ke theknoloji ea encryption e thehiloeng ho melao-motheo ea 'mele ea quantum mme e bonts'a bokhoni bo boholo ba ho ntlafatsa ts'ireletso ea puisano. Theknoloji ena e fetisa linotlolo tsa encryption ka ho sebelisa quantum states ea photon kapa likaroloana tse ling. Kaha linaha tsena tsa quantum li ke ke tsa phetoa kapa tsa lekanyetsoa ntle le ho fetola maemo a tsona, e eketsa haholo bothata ba mekha e lonya ho thibela litaba tsa puisano lipakeng tsa mahlakore a mabeli ntle le ho lemohuoa. Ka lebaka la bothata ba ho hlophisa mehloli ea 'nete ea photon (SPS), boholo ba litsamaiso tsa quantum key distribution (QKD) tse ntseng li ntlafatsoa hajoale li itšetlehile ka ho fokotsoa.mehloli e khanyangtse etsisang li-photon tse le 'ngoe, tse kang maqhubu a laser a tlaase. Kaha li-laser pulse tsena le tsona li kanna tsa se be le li-photon kapa li-photon tse ngata, ke hoo e ka bang 37% feela ea li-pulse tse sebelisoang sistimi e ka sebelisoang ho hlahisa linotlolo tsa ts'ireletso. Bafuputsi ba Machaena ba sa tsoa hlola ka katleho mefokolo ea sistimi e neng e reriloe pele ea quantum Key distribution (QKD). Ba sebelisitse mehloli ea 'nete ea photon e le' ngoe (SPS, ke hore, litsamaiso tse khonang ho ntša lifoto ka bomong ha li batloa).
Sepheo se seholo sa bafuputsi ke ho haha tsamaiso ea 'mele e khonang ho ntša li-photon tse khanyang tse phahameng ka ho fetisisa ha ho hlokahala, ka hona ho hlōla mefokolo ea motheo e tobaneng le mehloli e fokolang ea leseli e sebelisitsoeng nakong e fetileng ho haha litsamaiso tsa quantum key distribution (QKD). Tšepo ea bona ke hore tsamaiso ena e ka ntlafatsa ts'epo le ts'ebetso ea thekenoloji ea quantum key distribution (QKD), kahoo e rala motheo oa ho kenngoa ha eona nakong e tlang libakeng tsa sebele tsa lefatše. Hajoale, teko e fihletse liphetho tse ts'episang haholo hobane SPS ea bona e fumanoe e na le ts'ebetso e phahameng haholo mme e eketsa haholo sekhahla seoSistimi ea QKDe hlahisa linotlolo tsa tšireletso. Ka kakaretso, liphuputso tsena li totobatsa bokhoni ba litsamaiso tsa QKD tse thehiloeng ho SPS, tse bontšang hore ts'ebetso ea bona e ka feta haholo ea mekhoa ea QKD e thehiloeng ho WCP. "Re bontšitse ka lekhetlo la pele hore ts'ebetso ea QKD e thehiloeng ho SPS e feta tekanyo ea motheo ea WCP," bafuputsi ba boletse. Sebakeng sa tlhahlobo ea QKD ea mocha oa toropo oa sebaka sa mahala o nang le tahlehelo ea 14.6 (1.1) dB, re fihletse sekhahla se sireletsehileng sa senotlolo (SKR) sa 1.08 × 10−3 bits ka sekhahla, se neng se le 79% ho feta moeli oa 'nete oa sistimi ea QKD e ipapisitseng le leseli le kopaneng le fokolang. Leha ho le joalo, hajoale, tahlehelo e kholo ea kanale ea sistimi ea SPS-QKD e ntse e le tlase ho feta ea sistimi ea WCP-QKD. Tahlehelo e tlase ea mocha e hlokometsoeng ke bafuputsi tsamaisong ea bona ea quantum key distribution (QKD) ha ea ka ea tsoa tsamaisong ka boeona, empa e ne e bakoa ke phello e setseng ea li-photon tse ngata ho protocol e se nang decoy eo ba neng ba e sebetsa. E le karolo ea lipatlisiso tsa nako e tlang, ba na le tšepo ea ho ntlafatsa mamello ea tahlehelo ea tsamaiso ka ho ntlafatsa ts'ebetso ea mohloli o le mong oa photon (SPS) karolong e ka tlaase ea tsamaiso kapa ho hlahisa linaha tsa bait tsamaisong. Ho lumeloa hore tsoelo-pele e tsoelang pele ea thekenoloji e tla khothalletsa butle-butle nts'etsopele ea quantum key distribution (QKD) ho ea lits'ebetsong tse sebetsang le tse akaretsang.
Nako ea poso: Jun-25-2025