Estudo de taxas de perdas em sistemas heteronucleares / Trap loss in a two-species Rb-Cs magneto-optical trap

AUTOR(ES)

Wânius José Garcia da Silva

DATA DE PUBLICAÇÃO

2001

RESUMO

In this work, we had investigated the heteronuclear trap loss rate in a two-species Rb-Cs magneto-optical trap. The experimental results suggest that radiative escape is the main collisional process responsible for heteronuclear losses. An addapted Gallagher - Pritchard model is compared with the data. The model is very sensitive to the trap depth, which depends on the trap parameters (intensity, detuning, magnetic - field gradient, etc.) This observation is also supported by experimental results from a Pisagroup. We have compared experimental of heteronuclear rates as a function of the masses ratio of the atomic pair with the model, and a reasonable agreement is observed. These studies are relevant for high resolution atomic / molecular spectroscopy, and for the production of mixed - species Bose-Einstein condensates.

ASSUNTO(S)

condesado de bose-einstein radiative escape bose-einstein condensates colisões frias heteronucleares hyperfine change collision magneto optical trap heteronuclear cold collisions mudança de estrutura fina escape radiativo armadilha magneto-óptica

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