Quantum Degenerate Mixture of Ytterbium and Lithium Atoms
Abstract
We have produced a quantum degenerate mixture of fermionic alkali 6Li and bosonic spin-singlet 174Yb gases. This was achieved using sympathetic cooling of lithium atoms by evaporatively cooled ytterbium atoms in a far-off-resonant optical dipole trap. We observe co-existence of Bose condensed (T/T_c~0.8) 174Yb with 2.3*10^4 atoms and Fermi degenerate (T/T_F~0.3) 6Li with 1.2*10^4 atoms. Quasipure Bose-Einstein condensates of up to 3*10^4 174Yb atoms can be produced in single-species experiments. Our results mark a significant step toward studies of few and many-body physics with mixtures of alkali and alkaline-earth-like atoms, and for the production of paramagnetic polar molecules in the quantum regime. Our methods also establish a convenient scheme for producing quantum degenerate ytterbium atoms in a 1064nm optical dipole trap.
Keywords
Cite
@article{arxiv.1105.5751,
title = {Quantum Degenerate Mixture of Ytterbium and Lithium Atoms},
author = {Anders H. Hansen and Alexander Khramov and William H. Dowd and Alan O. Jamison and Vladyslav V. Ivanov and Subhadeep Gupta},
journal= {arXiv preprint arXiv:1105.5751},
year = {2015}
}
Comments
4 pages, 3 figures