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Title: Partially ferromagnetic electromagnet for trapping and cooling neutral atoms to quantum degeneracy
Authors: Fauquembergue, M.
Riou, J.F.
Guerin, W.
Rangwala, S.A.
Moron, F.
Villing, A.
Keywords: Optical cooling of atoms
Mechanical effects of light on atoms
Issue Date: Oct-2005
Publisher: American Institute of Physics
Citation: Review of Scientific Instruments, 2005, Vol.76, p10310
Abstract: We have developed a compact partially ferromagnetic electromagnet to produce an Ioffe-Pritchard trap for neutral atoms. Our structure permits strong magnetic confinement with low power consumption. Compared to the previous iron-core electromagnet [B. Desruelle, V. Boyer, P. Bouyer, G. Birkl, M. LĂ©crivain, F. Alves, C. Westbrook, and A. Aspect, Eur. Phys. J. D 1, 255 (1998)], 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 87Rb atoms to quantum degeneracy. Pure Bose-Einstein condensates containing 106 atoms are routinely realized on a half-minute cycle. In addition we test the stability of the magnetic trap by producing atom lasers.
Description: Restricted Access. An open-access version is available at (one of the alternative locations)
ISSN: 0034-6748
1089-7623 (Online)
Alternative Location: 10.1063/1.2090407
Copyright: 2005 American Institute of Physics
Appears in Collections:Research Papers (LAMP)

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