Phetisetso ea pele ea quantum ho tloha sefofaneng ho ea lefats'eng

Bafuputsi ba Majeremane ba khonne ho etsa teko ea ho fetisetsa tlhahisoleseding ea quantum ho tloha sefofaneng ho ea fatše. Ba sebelisitse protocol e bitsoang BB84, e sebelisang li-photon tse polarized ho fetisa senotlolo sa quantum ho tsoa sefofaneng se fofang ka lebelo le ka bang 300 km/h. Letšoao le ile la amoheloa seteisheneng sa fatše se bohōle ba lik'hilomithara tse 20.

Lirekoto tse teng tsa phetiso ea tlhaiso-leseling ea quantum ka li-photon li ile tsa etsoa ka nako e telele le e telele (144 km e fihlile ka hoetla), empa pakeng tsa libaka tse tsitsitseng lefatšeng. Bothata bo ka sehloohong ba puisano ea quantum pakeng tsa lintlha tse tsamaeang ke ho tsitsisa ha li-photon tse polarized. Ho fokotsa lerata, ho ne ho hlokahala hore ho eketsoe ho tsitsisa boemo bo lekanyelitsoeng ba transmitter le moamoheli.

Lifoto tse tsoang sefofaneng ho ea fatše li ile tsa fetisoa ka li-bits tse 145 ka motsotsoana ho sebelisoa mokhoa o fetotsoeng oa mokhoa oa puisano oa laser.