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Three-body decay of a rubidium Bose-Einstein condensate

J. Soding·D. Guery-Odelin·P. Desbiolles·F. Chevy·H. Inamori·J. Dalibard
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Abstract

We have measured the three-body decay of a Bose-Einstein condensate of rubidium ($^{87}$Rb) atoms prepared in the doubly polarized ground state $F=m_F=2$. Our data are taken for a peak atomic density in the condensate varying between $2\times 10^{14}$ cm$^{-3}$ at initial time and $7\times 10^{13}$ cm$^{-3}$, 16 seconds later. Taking into account the influence of the uncondensed atoms onto the decay of the condensate, we deduce a rate constant for condensed atoms $L=1.8 (\pm 0.5) \times 10^{-29}$ cm$^{6} $s$^{-1}$. For these densities we did not find a significant contribution of two-body processes such as spin dipole relaxation.

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J. Soding, D. Guery-Odelin, P. Desbiolles, F. Chevy, H. Inamori, J. Dalibard. 1998-11-24. Three-body decay of a rubidium Bose-Einstein condensate. https://doi.org/10.1007/s003400050805

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