Microelectromagnets for Trapping and Manipulating Ultracold Atomic Quantum Gases

Details Microelectromagnets for Trapping and Manipulating Ultracold Atomic Quantum Gases Microelectromagnets for Trapping and Manipulating Ultracold Atomic Quantum Gases

2002-05-28

arxiv.org/abs/cond-mat/0205586v1

Appl. Phys. Lett. 81, 1146 (2002)

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 3 figures

Scientific paper

10.1063/1.1495086

We describe the production and characterization of microelectromagnets made for trapping and manipulating atomic ensembles. The devices consist of 7 fabricated parallel copper conductors 3 micrometer thick, 25mm long, with widths ranging from 3 to 30 micrometer, and are produced by electroplating a sapphire substrate. Maximum current densities in the wires up to 6.5 * 10^6 A / cm^2 are achieved in continuous mode operation. The device operates successfully at a base pressure of 10^-11 mbar. The microstructures permit the realization of a variety of magnetic field configurations, and hence provide enormous flexibility for controlling the motion and the shape of Bose-Einstein condensates.

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