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

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

2011-01-07

arxiv.org/abs/1101.1409v1

Eur. Phys. J. D Topical issue: Cold Quantum Matter - Achievements and Prospects (2011)

Physics

Condensed Matter

Quantum Gases

Scientific paper

10.1140/epjd/e2011-20015-6

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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