Dual-Species Quantum Degeneracy of 40K and 87Rb on an Atom Chip
M. Extavour, Lindsay J. LeBlanc, Thorsten Schumm +5 more
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.
arXiv:cond-mat/0609259•AIP conference proceedings•Jan 1, 2006•22 citations