Giant Spin Relaxation of an Ultracold Cesium Gas
- Söding, J.
- Guéry-Odelin, D.
- Desbiolles, P.
- Ferrari, G.
- Dalibard, J.
Publication date
January 1998
DOI Publisher
American Physical Society (APS)Abstract
https://pro.college-de-france.fr/jean.dalibard/publications/inelast98.pdfInternational audienceWe have measured the rate of inelastic collisions in a cloud of doubly polarized ground-state cesium atoms ( F=mF=4) confined in a magnetic trap for temperatures T between 8 and 70μK. We find a two-body rate coefficient varying as T−0.63. At 8 μK it reaches 4×10−12cm3s−1 which is 3 orders of magnitude larger than predicted, ruling out a Bose-Einstein condensation of Cs in this internal state
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