Quantum-degenerate mixture of fermionic lithium and bosonic rubidium gases
Statistical Mechanics
2015-06-25 v2
Abstract
We report on the observation of sympathetic cooling of a cloud of fermionic 6-Li atoms which are thermally coupled to evaporatively cooled bosonic 87-Rb. Using this technique we obtain a mixture of quantum-degenerate gases, where the Rb cloud is colder than the critical temperature for Bose-Einstein condensation and the Li cloud colder than the Fermi temperature. From measurements of the thermalization velocity we estimate the interspecies s-wave triplet scattering length |a_s|=20_{-6}^{+9} a_B. We found that the presence of residual rubidium atoms in the |2,1> and the |1,-1> Zeeman substates gives rise to important losses due to inelastic collisions.
Keywords
Cite
@article{arxiv.cond-mat/0506217,
title = {Quantum-degenerate mixture of fermionic lithium and bosonic rubidium gases},
author = {C. Silber and S. Guenther and C. Marzok and B. Deh and Ph. W. Courteille and C. Zimmermann},
journal= {arXiv preprint arXiv:cond-mat/0506217},
year = {2015}
}
Comments
4 pages, 3 figures