Abstract
Over the past years, many experiments have been devoted to the study of excited-ground state collisions using a sample of trapped cold atoms. In binary homonuclear collision experiments, there are three different main exoergic processes, which are responsible for atom losses in a magneto-optical trap, have been observed for most of the alkalí:1 Fine Structure Changing (FS), Radiative Escape (RE) and Hyperfine Change Collisions (HCC). Recently, several theoretical studies have been published, proposing a new series of experiments involving two different species of atoms trapped together: two BEC species and heteronuclear cold collisions. As in the case of single species, these experiments require that samples be obtained at high density.
© 2001 Optical Society of America
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