Article,

Three-body decay of a rubidium Bose-Einstein condensate

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Applied Physics B: Lasers and Optics, 69 (4): 257--261 (Oct 12, 1999)
DOI: 10.1007/s003400050805

Abstract

We have measured the three-body decay of a Bose-Einstein condensate of rubidium (87Rb) atoms prepared in the doubly polarized ground state F=mF=2. Our data are taken for a peak atomic density in the condensate varying between 2&\#501014 cm-3 at initial time and 7&\#501013 cm-3, 16 s later. Taking into account the influence of the uncondensed atoms on the decay of the condensate, we deduce a rate constant for condensed atoms L=1.8 (&\#450.5) &\#5010-29 cm6 s-1. For these densities we did not find a significant contribution of two-body processes such as spin dipole relaxation.

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