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Bose-Einstein condensates on a permanent magnetic film atom chip

B. V. Hall·S. Whitlock·F. Scharnberg·P. Hannaford·A. Sidorov
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Abstract

We present a permanent magnetic film atom chip based on perpendicularly magnetized TbGdFeCo films. This chip routinely produces a Bose-Einstein condensate (BEC) of 10^5 87Rb atoms using the magnetic film potential. Fragmentation observed near the film surface provides unique opportunities to study BEC in a disordered potential. We show this potential can be used to simultaneously produce multiple spatially separated condensates. We exploit part of this potential to realize a time-dependent double well system for splitting a condensate.

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B. V. Hall, S. Whitlock, F. Scharnberg, P. Hannaford, A. Sidorov. 2005-09-05. Bose-Einstein condensates on a permanent magnetic film atom chip. https://doi.org/10.1142/9789812701473_0028

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