Rb-85 tunable-interaction Bose-Einstein condensate machine
| Autor: | Altin, P. A., Robins, N. P., Doering, D., Debs, J. E., Poldy, R., Figl, C., Close, J. D. |
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| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Rev. Sci. Instrum. 81, 063103 (2010) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/1.3430538 |
| Popis: | We describe our experimental setup for creating stable Bose-Einstein condensates of Rb-85 with tunable interparticle interactions. We use sympathetic cooling with Rb-87 in two stages, initially in a tight Ioffe-Pritchard magnetic trap and subsequently in a weak, large-volume crossed optical dipole trap, using the 155 G Feshbach resonance to manipulate the elastic and inelastic scattering properties of the Rb-85 atoms. Typical Rb-85 condensates contain 4 x 10^4 atoms with a scattering length of a=+200a_0. Our minimalist apparatus is well-suited to experiments on dual-species and spinor Rb condensates, and has several simplifications over the Rb-85 BEC machine at JILA (Papp, 2007; Papp and Wieman, 2006), which we discuss at the end of this article. Comment: 10 pages, 8 figures |
| Databáze: | arXiv |
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