title: Strong evaporative cooling of a trapped cesium gas.
abstract: Using forced radio-frequency evaporation, we have cooled cesium atoms prepared in the sublevel F = -m(F) = 3 and confined in a magnetic trap. At the end of the evaporation ramp, the sample contains ~ 7000 atoms at 80 nK, corresponding to a phase space density 3 x 10(-2). A molecular dynamics approach, including the effect of gravity, gives a good account for the experimental data, assuming a scattering length larger than 300 Angstrom.
authors.forename: D
authors.initials: D
authors.lastname: Guery-Odelin
authors.forename: J
authors.initials: J
authors.lastname: Soeding
authors.forename: P
authors.initials: P
authors.lastname: Desbiolles
authors.forename: J
authors.initials: J
authors.lastname: Dalibard