GIANT SPIN RELAXATION OF AN ULTRACOLD CESIUM GAS

Authors
SODING J GUERYODELIN D DESBIOLLES P FERRARI G DALIBARD J
Citation
J. Soding et al., GIANT SPIN RELAXATION OF AN ULTRACOLD CESIUM GAS, Physical review letters, 80(9), 1998, pp. 1869-1872
Citations number
20
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
80
Issue
9
Year of publication
1998
Pages
1869 - 1872
Database
ISI
SICI code
0031-9007(1998)80:9<1869:GSROAU>2.0.ZU;2-B
Abstract
We have measured the rate of inelastic collisions in a cloud of doubly polarized ground-state cesium atoms (F = m(F) = 4) confined in a magn etic trap for temperatures T between 8 and 70 mu K. We find a two-body rate coefficient varying as T-0.63. At 8 mu K it reaches 4 X 10(-12) cm(3) s(-1) which is 3 orders of magnitude larger than predicted, ruli ng out a Bose-Einstein condensation of Cs in this internal state.