Near Resonant Spatial Images of Confined Bose-Einstein Condensates in the '4D' Magnetic Bottle
Lene Vestergaard Hau, B. D. Busch, Chien Liu, Zachary Dutton, Michael M. Burns, J. A. Golovchenko
Abstract
We present quantitative measurements of the spatial density profile of Bose-Einstein condensates of sodium atoms confined in a new '4D' magnetic bottle. The condensates are imaged in transmission with near resonant laser light. We demonstrate that the Thomas-Fermi surface of a condensate can be determined to better than 1%. More generally, we obtain excellent agreement with mean-field theory. We conclude that precision measurements of atomic scattering lengths and interactions between phase separated cold atoms in a harmonic trap can be measured with high precision using this method.
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