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arXiv · 1101.1409

Production of a dual-species Bose-Einstein condensate of Rb and Cs atoms

A. D. Lercher·T. Takekoshi·M. Debatin·B. Schuster·R. Rameshan·F. Ferlaino·R. Grimm·H. -C. Nägerl
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Abstract

We report the simultaneous production of Bose-Einstein condensates (BECs) of $^{87}$Rb and $^{133}$Cs atoms in separate optical traps. The two samples are mixed during laser cooling and loading but are separated by $400 μ$m for the final stage of evaporative cooling. This is done to avoid considerable interspecies three-body recombination, which causes heating and evaporative loss. We characterize the BEC production process, discuss limitations, and outline the use of the dual-species BEC in future experiments to produce rovibronic ground state molecules, including a scheme facilitated by the superfluid-to-Mott-insulator (SF-MI) phase transition.

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A. D. Lercher, T. Takekoshi, M. Debatin, B. Schuster, R. Rameshan, F. Ferlaino, R. Grimm, H. -C. Nägerl. 2011-01-07. Production of a dual-species Bose-Einstein condensate of Rb and Cs atoms. https://doi.org/10.1140/epjd%2Fe2011-20015-6

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