Chekutanga quantum kutamiswa kubva ndege kuenda pasi

Vatsvagiri veGerman vakakwanisa kuita kuyedza nekufambisa kwehuwandu hweruzivo kubva mundege kuenda pasi. Vakashandisa protocol inonzi BB84, inoshandisa polarized photons kufambisa kiyi ye quantum kubva mundege inobhururuka ingangoita 300 km/h. Chiratidzo chacho chakagamuchirwa pachiteshi chepasi chiri makiromita makumi maviri kubva ipapo.

Marekodhi aripo ekufambisa kwehuwandu hweruzivo nemafotoni akaitwa pamusoro pemarefu uye marefu madaro (144 km yakasvikwa mumatsutso), asi pakati penzvimbo dzakatarwa pasi. Dambudziko guru rekutaurirana kwehuwandu pakati pekufamba mapoinzi ndiko kugadzikana kwepolarized photons. Kuti uderedze ruzha, zvaive zvakafanira kuwedzera kudzikamisa chinzvimbo chemupepeti uye mugamuchiri.

Mapikicha kubva mundege kuenda pasi aifambiswa pa 145 bits pasekondi pachishandiswa yakagadziridzwa yakajairika laser communication system.