Flux enhancement model for cold cesium fine-structure changing collisions |
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Authors: | A Fioretti E Arimondo A Crubellier |
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Institution: | (1) Istituto Nazionale per la Fisica della Materia, Dipartimento di Fisica, Università di Pisa, via Buonarroti 2, 56127 Pisa, Italy, IT;(2) Laboratoire Aimé Cotton (Laboratoire Aimé Cotton is associated with Université Paris-Sud.), CNRS II, Batiment 505, Campus d'Orsay, 91405 Orsay Cedex, France, FR |
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Abstract: | The measurements of fine-structure changing collisions in a cesium magneto-optical trap, reported in a previous work A. Fioretti
et al., Phys. Rev. A 55, R3999 (1997)], are reanalyzed within a model based on the flux enhancement effect, which takes place in cold atomic collisions.
In the present analysis, we consider the cooperative effect of the long-range and the shorter-range excitation by the strong
trap laser. We evidence also the important role of the hyperfine structure of the Cs2 molecular levels asymptotically connected to the ground-state and excited-state dissociation limits.
Received 22 July 1999 and Received in final form 4 May 2000 |
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Keywords: | PACS 34 50 Rk Laser-modified scattering and reactions - 32 80 Pj Optical cooling of atoms trapping |
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