Expansion of a lithium gas in the BEC-BCS crossover
Statistical Mechanics
2009-11-10 v1
Abstract
We report on experiments in Li Fermi gases near Feshbach resonances. A broad s-wave resonance is used to form a Bose-Einstein condensate of weakly bound Li molecules in a crossed optical trap. The measured molecule-molecule scattering length of nm at 770 G is found in good agreement with theory. The expansion energy of the cloud in the BEC-BCS crossover region is measured. Finally we discuss the properties of p-wave Feshbach resonances observed near 200 Gauss and new s-wave resonances in the heteronuclear Li- Li mixture.
Keywords
Cite
@article{arxiv.cond-mat/0410167,
title = {Expansion of a lithium gas in the BEC-BCS crossover},
author = {J. Zhang and E. G. M. Van Kempen and T. Bourdel and L. Khaykovich and J. Cubizolles and F. Chevy and M. Teichmann and L. Tarruell and S. J. J. M. F. Kokkelmans and C. Salomon},
journal= {arXiv preprint arXiv:cond-mat/0410167},
year = {2009}
}
Comments
10 pages, 3 figures, Proceedings of ICAP 2004