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arXiv · 0811.0671

All-Optical Formation of Quantum Degenerate Mixtures

Takeshi Fukuhara·Seiji Sugawa·Yosuke Takasu·Yoshiro Takahashi
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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.

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Takeshi Fukuhara, Seiji Sugawa, Yosuke Takasu, Yoshiro Takahashi. 2008-11-05. All-Optical Formation of Quantum Degenerate Mixtures. https://doi.org/10.1103/physreva.79.021601

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