Dual-species quantum degeneracy of potassium-40 and rubidium-87 on an atom chip

Details Dual-species quantum degeneracy of potassium-40 and rubidium-87 on an atom chip Dual-species quantum degeneracy of potassium-40 and rubidium-87 on an atom chip

2006-09-11

arxiv.org/abs/cond-mat/0609259v1

Physics

Condensed Matter

Statistical Mechanics

8 pages, 4 figures. To be published in the Proceedings of the 20th International Conference on Atomic Physics, 2006 (Innsbruck

Scientific paper

10.1063/1.2400654

In this article we review our recent experiments with a 40K-87Rb mixture. We demonstrate rapid sympathetic cooling of a 40K-87Rb mixture to dual quantum degeneracy on an atom chip. We also provide details on efficient BEC production, species-selective magnetic confinement, and progress toward integration of an optical lattice with an atom chip. The efficiency of our evaporation allows us to reach dual degeneracy after just 6 s of evaporation - more rapidly than in conventional magnetic traps. When optimizing evaporative cooling for efficient evaporation of 87Rb alone we achieve BEC after just 4 s of evaporation and an 8 s total cycle time.

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