Strong evaporative cooling of a trapped cesium gas.
Open Access
- 13 April 1998
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 2 (8) , 323-329
- https://doi.org/10.1364/oe.2.000323
Abstract
Using forced radio-frequency evaporation, we have cooled cesium atoms prepared in the sublevel F = -mF = 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 × 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 Å.Keywords
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