Dunidu waxay jabisay xadka furaha quantum markii ugu horeysay

Dunidu waxay jabisay xadka furaha quantum markii ugu horeysay. Heerka muhiimka ah ee isha dhabta ah ee hal sawir ayaa kor u kacday 79%.

Qaybinta Furaha Quantum(QKD) waa tignoolajiyada sirta ah ee ku salaysan mabaadi'da jireed ee tirada waxayna muujinaysaa karti weyn oo lagu wanaajinayo amniga isgaarsiinta. Farsamadan waxa ay gudbisaa furayaasha sirta ah iyada oo adeegsanaysa xaaladaha tirada ee photons ama qaybo kale. Mar haddii dalalkan tirada guud aan la soo koobi karin ama la qiyaasi karin iyada oo aan la beddelin gobolladooda, waxay si weyn u kordhinaysaa dhibka ay kooxaha xaasidnimadu ku jirto inay dhexgalaan nuxurka isgaarsiinta labada dhinac iyadoo aan la ogaan. Dhibaatada diyaarinta ilo-sawireedka dhabta ah (SPS), badi nidaamyada qaybinta furaha quantum-ka (QKD) ee hadda la sameeyay waxay ku tiirsan yihiin la yareeyey.ilaha iftiinkakuwaas oo u ekaysiinaya hal sawir-qaade, sida garaaca laysarka oo hooseeya. Mar haddii garaaca laysarka ay sidoo kale ku jiri karaan sawiro ama sawiro badan, kaliya qiyaastii 37% garaaca wadnaha ee loo isticmaalo nidaamka ayaa loo isticmaali karaa in lagu dhaliyo furayaasha amniga. Cilmi-baarayaasha Shiinaha ayaa dhawaan si guul leh uga gudbay xaddidaadda nidaamka qaybinta furaha quantum-ka ee hore loo soo jeediyay (QKD). Waxay adeegsadeen ilo dhab ah oo hal sawir leh (SPS, yacni, habab awood u leh inay soo saaraan sawir-qaade shaqsiyeed marka loo baahdo).

Hadafka ugu weyn ee cilmi-baarayaashu waa in la dhiso nidaam jireed oo awood u leh in uu soo saaro iftiin sare oo iftiin leh oo keliya baahida, taas oo ka gudubta xaddidaadyada aasaasiga ah ee ay la kulmaan ilaha iftiinka ee daciifka ah ee loo isticmaalo waagii hore si loo dhiso nidaamyada qaybinta muhiimka ah ee quantum (QKD). Rajadoodu waa in nidaamkani kor u qaadi karo isku halaynta iyo waxqabadka tignoolajiyada qaybinta furaha quantum (QKD), taas oo dhidibada u aasaysa mustaqbalkeeda geynteeda deegaanka dhabta ah. Waqtigan xaadirka ah, tijaabadu waxay gaadhay natiijooyin rajo leh sababtoo ah SPS ayaa la ogaaday inay leedahay wax-ku-oolnimo aad u sarreeya oo si weyn u kordhisay heerkanidaamka QKDwuxuu abuuraa furayaasha amniga. Guud ahaan, natiijooyinkani waxay muujinayaan awoodda nidaamyada QKD ee ku saleysan SPS, taasoo muujineysa in waxqabadkoodu uu si weyn uga sarre mari karo nidaamyada ku saleysan QKD ee WCP. "Waxaan soo bandhignay markii ugu horeysay in waxqabadka QKD ee ku saleysan SPS uu dhaafo xadka aasaasiga ah ee WCP," cilmi-baarayaashu waxay yiraahdeen. Goobta imtixaanka QKD ee kanaalka magaalada ee bannaanka ah ee luminta 14.6(1.1) dB, waxaanu ku gaadhnay heerka furaha ee sugan (SKR) ee 1.08 × 10−3 bits halkii garaac, kaas oo ahaa 79% ka sarreeya xadka dhabta ah ee nidaamka QKD ee ku salaysan iftiin daciif ah. Si kastaba ha ahaatee, wakhtigan xaadirka ah, khasaaraha ugu badan ee kanaalka ee nidaamka SPS-QKD ayaa weli ka hooseeya kan nidaamka WCP-QKD. Khasaaraha kanaalka hoose ee ay arkeen cilmi-baarayaashu nidaamka qaybinta furaha quantum-ka (QKD) kama aysan soo bixin nidaamka laftiisa, laakiin waxaa loo aaneynayaa saameynta sawirka badan ee haraaga ah ee borotokoolka bilaashka ah ee ay ku shaqeynayeen. Iyada oo qayb ka ah cilmi-baarista mustaqbalka, waxay rajeynayaan inay kor u qaadaan dulqaadka luminta nidaamka iyaga oo sii wanaajinaya waxqabadka isha hal-sawir (SPS) ee lakabka hoose ee nidaamka ama soo bandhigida xaaladaha sed ee nidaamka. Waxaa la rumeysan yahay in horumarka tignoolajiyada ee joogtada ah uu si tartiib tartiib ah kor ugu qaadi doono horumarinta qaybinta furaha quantum (QKD) ee ku wajahan codsiyada la taaban karo iyo kuwa guud.