Using ion production to monitor the birth and death of a metastable helium Bose-Einstein condensate

S. Seidelin; O. Sirjean; J. Viana Gomes; D. Boiron; C. I. Westbrook; A. Aspect

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Using ion production to monitor the birth and death of a metastable helium Bose-Einstein condensate

S. Seidelin·O. Sirjean·J. Viana Gomes·D. Boiron·C. I. Westbrook·A. Aspect

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Abstract

We discuss observations of the ion flux from a cloud of trapped metastable helium atoms. Both Bose-Einstein condensates and thermal clouds were investigated. The ion flux is compared to time-of-flight observations of the expanded cloud. We show data concerning BEC formation and decay, as well as measurements of two- and three-body ionization rate constants. We also discuss possible improvements and extensions of our results.

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S. Seidelin, O. Sirjean, J. Viana Gomes, D. Boiron, C. I. Westbrook, A. Aspect. 2002-11-06. Using ion production to monitor the birth and death of a metastable helium Bose-Einstein condensate. https://arxiv.org/abs/cond-mat/0211112

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