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arXiv · 0705.2569

Fully permanent magnet atom chip for Bose-Einstein condensation

T. Fernholz·R. Gerritsma·S. Whitlock·I. Barb·R. J. C. Spreeuw
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Abstract

We describe a self-biased, fully permanent magnet atom chip used to study ultracold atoms and to produce a Bose-Einstein condensate (BEC). The magnetic trap is loaded efficiently by adiabatic transport of a magnetic trap via the application of uniform external fields. Radio frequency spectroscopy is used for in-trap analysis and to determine the temperature of the atomic cloud. The formation of a Bose-Einstein condensate is observed in time of flight images and as a narrow peak appearing in the radio frequency spectrum.

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T. Fernholz, R. Gerritsma, S. Whitlock, I. Barb, R. J. C. Spreeuw. 2008-03-24. Fully permanent magnet atom chip for Bose-Einstein condensation. https://doi.org/10.1103/physreva.77.033409

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