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

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

2002-11-06

arxiv.org/abs/cond-mat/0211112v1

Journal of Optics B Quantum and Semiclassical Optics 5 (2): S112-S118 (2003)

Physics

Condensed Matter

14 pages, 9 figures, submitted to Journal of Optics B (special issue, cold quantum gases)

Scientific paper

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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