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
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DOI：
10.1140/epjd/e2011-20015-6
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发表时间：
2011-01
期刊：
影响因子：
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通讯作者：
A. D. Lercher;T. Takekoshi;M. Debatin;B. Schuster;R. Rameshan;F. Ferlaino;R. Grimm;H. Nägerl
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文献类型：
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作者：
A. D. Lercher;T. Takekoshi;M. Debatin;B. Schuster;R. Rameshan;F. Ferlaino;R. Grimm;H. Nägerl
本文报道了~（87）Rb和~（133）Cs原子在不同的光阱中同时产生玻色-爱因斯坦凝聚体（BEC）。两种样品在激光冷却和加载期间混合，但在蒸发冷却的最后阶段分开400μm。这样做是为了避免相当大的物种间三体复合，这会导致加热和蒸发损失。我们的BEC生产过程的特点，讨论的局限性，并概述了使用的双物种BEC在未来的实验中产生的rovibronic基态分子，包括一个计划促进超流莫特绝缘体（SF-MI）相变。
We report the simultaneous production of Bose-Einstein condensates (BECs) of87Rb and133Cs atoms in separate optical traps. The two samples are mixed during laser cooling and loading but are separated by 400μm 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.