Umgomo wokupholisa we-laser kanye nesicelo sawo kuma-athomu abandayo

Umgomo wokupholisa we-laser kanye nesicelo sawo kuma-athomu abandayo

Ku-Cold Atom Physics, umsebenzi omningi wokuhlola udinga ukulawula izinhlayiya (ukubopha ama-athomu ama-ionic, njengama-athomu atholwa ama-athomu), ukwehlisa ukwehlisa ukunemba. Ngokuthuthukiswa kwe-laser technology, ukuphola kwe-laser nakho sekuqale ukusetshenziswa kabanzi kuma-athomu abandayo.

Esikalini se-athomu, umongo wokushisa yijubane lapho izinhlayiya zihamba. I-Laser Cooling ukusetshenziswa kwama-photons nama-athomu ukushintshanisa ama-athomu, ngaleyo ndlela ama-athomu apholile. Isibonelo, uma i-athomu inesivinini sangaphambili phambili, bese imunca i-photon endizayo ehamba ngaphesheya, khona-ke ukuvezwa kwalo kuzoncipha. Lokhu kufana nebhola elidlulela phambili otshanini, uma lingashukunyiswa amanye amabutho, lizoyeka ngenxa ye- "ukumelana" okulethwe ngokuxhumana notshani.

Lokhu kupholisa ama-athomu ama-athomu, futhi inqubo ngumjikelezo. Futhi kungenxa yalomjikelezo ama-athomu aqhubeka nokupholisa phansi.

Kulokhu, ukupholisa okulula kakhulu ukusebenzisa umphumela we-doppler.

Kodwa-ke, akuwona wonke ama-athomu angenziwa aphonswe ama-lasers, futhi "ukuguquka kwe-cyclic" kumele kutholakale phakathi kwamazinga we-athomu ukufeza lokhu. Ngokushintshana ngezikebhe kuphela kungatholwa ukupholisa futhi kuqhubeke ngokuqhubekayo.

Njengamanje, ngoba i-Atom ye-Alkali Metal (enjenge-NA) ine-elektroni eyodwa kuphela engxenyeni yangaphandle, kanye nama-athomu ama-athomu amabili alula kakhulu, futhi kulula ukufezekisa "ama-athomu asemuva nje apholile ama-athomu wensimbi alula kakhulu ama-alkali noma ama-athomu e-alkali emhlabeni.

Umgomo wokupholisa we-laser kanye nesicelo sawo kuma-athomu abandayo