Kua pakaru te ao i te rohe o te kī irahiko mō te wā tuatahi. Kua piki ake te tere o te kī o te pūtake irahiko kotahi tūturu mā te 79%.
Te Tohatoha Kī Kuantum(QKD) he hangarau whakamunatanga e ahu mai ana i ngā mātāpono ā-tinana matūriki, ā, e whakaatu ana i te kaha nui ki te whakarei ake i te haumarutanga whakawhitiwhiti kōrero. Ka tukuna e tēnei hangarau ngā kī whakamunatanga mā te whakamahi i ngā āhua matūriki o ngā photon, o ētahi atu matūriki rānei. Nā te mea kāore e taea te tārua, te ine rānei i ēnei āhua matūriki me te kore e whakarerekē i ō rātou āhua, ka nui ake te uaua mō ngā rōpū kino ki te aukati i ngā ihirangi whakawhitiwhiti kōrero i waenga i ngā taha e rua me te kore e kitea. Nā te uaua ki te whakarite i ngā pūtake photon kotahi (SPS) pono, ko te nuinga o ngā pūnaha tohatoha kī matūriki (QKD) e whakawhanakehia ana i tēnei wā e whakawhirinaki ana ki ngā pūnaha kua whakaitihia.ngā pūtake māramae whakaata ana i ngā irahiko takitahi, pērā i ngā pāorooro taiaho iti-kaha. Nā te mea kāore pea he irahiko, he irahiko maha rānei i roto i ēnei pāorooro taiaho, tata ki te 37% noa iho o ngā pāorooro e whakamahia ana i roto i te pūnaha ka taea te whakamahi hei whakaputa kī haumarutanga. Nō nā tata nei, kua angitu ngā kairangahau Hainamana ki te wikitoria i ngā herenga o te pūnaha tohatoha kī quantum (QKD) i whakaarohia i mua. Kua whakamahia e rātou ngā pūtake irahiko takitahi tūturu (SPS, arā, ngā pūnaha ka taea te tuku i ngā irahiko takitahi i runga i te tono).
Ko te whāinga matua a ngā kairangahau he hanga i tētahi pūnaha ā-tinana e kaha ana ki te tuku i ngā irahiko kotahi kanapa teitei ina hiahiatia, ā, mā reira ka hinga i ngā herenga taketake i pā ki ngā pūtake mārama ngoikore i whakamahia i mua hei hanga i ngā pūnaha tohatoha kī irahiko (QKD). Ko tā rātou e tumanako nei kia taea e tēnei pūnaha te whakarei ake i te pono me te mahi a te hangarau tohatoha kī irahiko (QKD), ā, mā reira ka whakatakoto i te turanga mō tōna whakatinanatanga ā muri ake nei ki ngā taiao o te ao tūturu. I tēnei wā, kua tutuki i te whakamātautau ngā hua tino whai hua nā te mea kua kitea he tino pai te whai huatanga o tā rātou SPS, ā, ka nui ake te tere o tePūnaha QKDka whakaputa i ngā kī haumarutanga. I te nuinga o te wā, e whakaatu ana ēnei kitenga i te kaha o ngā pūnaha QKD e hangai ana ki te SPS, e tohu ana ka taea e tā rātou mahi te hipa ake i ngā pūnaha QKD e hangai ana ki te WCP. "Kua whakaaturia e mātou mō te wā tuatahi ko te mahi a te QKD e hangai ana ki te SPS e hipa ana i te rohenga tere taketake o te WCP," te kī a ngā kairangahau. I roto i te whakamātautau QKD o te awaawa tāone wāhi-kore me te ngaronga o te 14.6(1.1) dB, i tutuki i a mātou he terenga kī haumaru (SKR) o te 1.08 × 10−3 moka ia pā, he 79% teitei ake i te rohenga tuturu o te pūnaha QKD e hangai ana ki te mārama ngoikore. Heoi, i tēnei wā, ko te ngaronga awaawa mōrahi o te pūnaha SPS-QKD he iti iho tonu i te pūnaha WCP-QKD. Ko te ngaronga awaawa iti i kitea e ngā kairangahau i roto i tā rātou pūnaha tohatoha kī irahiko (QKD) kāore i ahu mai i te pūnaha tonu, engari i pā ki te pānga maha-photon toenga i roto i te kawa kore-whakapati i whakahaerehia e rātou. Hei wāhanga o ngā rangahau ā muri ake nei, e tumanako ana rātou ki te whakarei ake i te manawanui ngaronga o te pūnaha mā te arotau ake i te mahi a te pūtake photon kotahi (SPS) i te paparanga raro o te pūnaha, te whakauru rānei i ngā āhua mōunu ki roto i te pūnaha. E whakaponohia ana mā te ahunga whakamua tonu o te hangarau ka āta whakatairanga i te whanaketanga o te tohatoha kī irahiko (QKD) ki ngā tono mahi me ngā tono whānui.
Wā tuku: Pipiri-25-2025