Giant spin relaxation of an ultracold cesium gas.

Söding, J.; Guery-Odelin, D.; Desbiolles, P.; Ferrari, G.; Dalibard, J.

doi:10.1103/PhysRevLett.80.1869

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Giant spin relaxation of an ultracold cesium gas.

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Söding, J.
Research Group of Computational Biology, MPI for Biophysical Chemistry, Max Planck Society;

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Citation

Söding, J., Guery-Odelin, D., Desbiolles, P., Ferrari, G., & Dalibard, J. (1998). Giant spin relaxation of an ultracold cesium gas. Physical Review Letters, 80(9), 1869-1872. doi:10.1103/PhysRevLett.80.1869.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0017-F07D-D

Abstract

We 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.