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

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 $400\mu$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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Cited by in corpus (14)

• Ultracold dense samples of dipolar RbCs molecules in the rovibrational and hyperfine ground state
• Dual-Species Bose-Einstein Condensate of ${}^{87}$Rb and ${}^{133}$Cs
• Production of quantum degenerate strontium gases: Larger, better, faster, colder
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• Feshbach spectroscopy of an ultracold mixture of ${}^{85}$Rb and ${}^{133}$Cs
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• Phase separation of a Bose-Bose mixture: impact of the trap and particle number imbalance
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• Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trap
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