Giant Spin Relaxation of an Ultracold Cesium Gas
Copyright policy )Giant Spin Relaxation of an Ultracold Cesium Gas
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.
- National Research Council Italy
- Sorbonne Paris Cité France
- Sorbonne University France
- École Normale Supérieure France
- Max Planck Society Germany
Sous embargo, DALIBARD Jean, Autre lien d'accès au document, Document sous DOI (Digital Object Identifier), web-atomes-rayonnement, [PHYS.QPHY] Physics [physics]/Quantum Physics [quant-ph]
Sous embargo, DALIBARD Jean, Autre lien d'accès au document, Document sous DOI (Digital Object Identifier), web-atomes-rayonnement, [PHYS.QPHY] Physics [physics]/Quantum Physics [quant-ph]
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