Kusamutsa kwachulukidwe koyamba kuchokera ku ndege kupita kudziko lapansi
Ofufuza aku Germany adakwanitsa kuyesa kusamutsa chidziwitso cha quantum kuchokera ku ndege kupita pansi. Anagwiritsa ntchito ndondomeko yotchedwa BB84, yomwe imagwiritsa ntchito ma photon opangidwa ndi polarized kutumiza makiyi a quantum kuchokera mu ndege yomwe ikuwuluka pafupifupi 300 km / h. Chizindikirocho chinalandiridwa pa siteshoni yapansi pamtunda wa makilomita 20.
Zojambulira zomwe zilipo pakufalitsa zidziwitso za quantum ndi ma photon zidachitika mtunda wautali komanso wautali (makilomita 144 adafikira nthawi yophukira), koma pakati pa malo osakhazikika padziko lapansi. Vuto lalikulu la kuyankhulana kwachulukidwe pakati pa malo osuntha ndi kukhazikika kwa ma photon a polarized. Kuti muchepetse phokoso, kunali koyenera kukhazikitsiranso malo achibale a transmitter ndi wolandila.
Zithunzi zochokera mu ndege kupita pansi zimatumizidwa pa 145 bits pa sekondi imodzi pogwiritsa ntchito makina osinthidwa a laser.
