39-K Bose-Einstein condensate with tunable interactions
Other Condensed Matter
2009-11-13 v1 Atomic Physics
Abstract
We produce a Bose-Einstein condensate of 39-K atoms. Condensation of this species with naturally small and negative scattering length is achieved by a combination of sympathetic cooling with 87-Rb and direct evaporation, exploiting the magnetic tuning of both inter- and intra-species interactions at Feshbach resonances. We explore tunability of the self-interactions by studying the expansion and the stability of the condensate. We find that a 39-K condensate is interesting for future experiments requiring a weakly interacting Bose gas.
Cite
@article{arxiv.cond-mat/0703714,
title = {39-K Bose-Einstein condensate with tunable interactions},
author = {G. Roati and M. Zaccanti and C. D'Errico and J. Catani and M. Modugno and A. Simoni and M. Inguscio and G. Modugno},
journal= {arXiv preprint arXiv:cond-mat/0703714},
year = {2009}
}
Comments
5 pages