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arXiv · cond-mat/0211345

Bose-Einstein condensates near a microfabricated surface

A. E. Leanhardt·Y. Shin·A. P. Chikkatur·D. Kielpinski·W. Ketterle·D. E. Pritchard
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Abstract

Magnetically and optically confined Bose-Einstein condensates were studied near a microfabricated surface. Condensate fragmentation observed in microfabricated magnetic traps was not observed in optical dipole traps at the same location. The measured condensate lifetime was $\geq 20$ s and independent of the atom-surface separation under both magnetic and optical confinement. Radio-frequency spin-flip transitions driven by technical noise were directly observed for optically confined condensates and could limit the condensate lifetime in microfabricated magnetic traps.

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A. E. Leanhardt, Y. Shin, A. P. Chikkatur, D. Kielpinski, W. Ketterle, D. E. Pritchard. 2002-11-16. Bose-Einstein condensates near a microfabricated surface. https://doi.org/10.1103/physrevlett.90.100404

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