All-Optical Formation of Quantum Degenerate Mixtures
arXiv:0811.0671 · doi:10.1103/PhysRevA.79.021601
Abstract
We report the realization of quantum degenerate mixed gases of ytterbium (Yb) isotopes using all-optical methods. We have succeeded in cooling attractively interacting 176Yb atoms via sympathetic cooling down to below the Bose-Einstein transition temperature, coexisting with a stable condensate of 174Yb atoms with a repulsive interaction. We have observed a rapid atom loss in 176Yb atoms after cooling down below the transition temperature, which indicates the collapse of a 176Yb condensate. The sympathetic cooling technique has been applied to cool a 173Yb-174Yb Fermi-Bose mixture to the quantum degenerate regime.
4 pages, 3 figures
References in corpus (8)
- Bose-Einstein condensation of chromium
- Tuning the scattering length with an optically induced Feshbach resonance
- Degenerate Fermi Gases of Ytterbium
- Two-color photoassociation spectroscopy of ytterbium atoms and the precise determinations of s-wave scattering lengths
- All-Optical Production of Chromium Bose-Einstein Condensates
- Bose-Einstein Condensation of an Ytterbium Isotope
- A Degenerate Bose-Fermi Mixture of Metastable Atoms
- Heteronuclear fermionic superfluids with spin degrees of freedom