Partially ferromagnetic electromagnet for trapping and cooling neutral atoms to quantum degeneracy
Other Condensed Matter
2013-02-22 v2
Abstract
We have developed a compact partially ferromagnetic electromagnet to produce a Ioffe-Pritchard trap for neutral atoms. Our structure permits strong magnetic confinement with low power consumption. Compared to the previous iron-core electromagnet, it allows for easy compensation of remnant fields and very high stability, along with cost-effective realization and compactness. We describe and characterize our apparatus and demonstrate trapping and cooling of Rb 87 atoms to quantum degeneracy. Pure Bose-Einstein condensates containing 10^6 atoms are routinely realized on a half-minute cycle. In addition we test the stability of the magnetic trap by producing atom lasers.
Keywords
Cite
@article{arxiv.cond-mat/0507129,
title = {Partially ferromagnetic electromagnet for trapping and cooling neutral atoms to quantum degeneracy},
author = {Marie Fauquembergue and Jean-Félix Riou and William Guerin and Sadiq Rangwala and Frédéric Moron and André Villing and Yann Le Coq and Michel Lécrivain and Philippe Bouyer and Alain Aspect},
journal= {arXiv preprint arXiv:cond-mat/0507129},
year = {2013}
}