Trapping Fermionic $^{40}$K and Bosonic $^{87}$Rb on a Chip
Abstract
We demonstrate the loading of a Bose-Fermi mixture into a microfabricated magnetic trap. In a single-chamber vacuum system, laser-cooled atoms are transported to the surface of a substrate on which gold wires have been microfabricated. The magnetic field minimum formed near these current-carrying wires is used to confine up to neutral K atoms. In addition, we can simultaneously load Rb atoms, demonstrating the confinement of two distinct elements with such a trap. In a sequence optimized for Rb alone, we observe up to trapped atoms. We describe in detail the experimental apparatus, and discuss prospects for evaporative cooling towards quantum degeneracy in both species.
Cite
@article{arxiv.cond-mat/0502196,
title = {Trapping Fermionic $^{40}$K and Bosonic $^{87}$Rb on a Chip},
author = {S. Aubin and M. H. T. Extavour and S. Myrskog and L. J. LeBlanc and J. Esteve and S. Singh and P. Scrutton and D. McKay and R. McKenzie and I. D. Leroux and A. Stummer and J. H. Thywissen},
journal= {arXiv preprint arXiv:cond-mat/0502196},
year = {2009}
}
Comments
10 pages, 6 figures. To appear in Journal of Low Temperature Physics, Vol 140, Nos. 5/6, September 2005. (v4: proof corrections, references updated.)