References

Abstract: Using forced radio-frequency evaporation, we have cooled cesium atoms prepared in the sublevel F = −mF = 3 and conned 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 310−2. A molecular dynamics approach, including the eect of gravity, gives a good account for the experimental data, assuming a scattering length larger than 300 A. c©1998 Optical Society of America OCIS codes: (020.0020) Atomic and molecular physics; (020.7010) Trapping