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arXiv · 1108.1827

Magnetically tunable Feshbach resonances in ultracold Li-Yb mixtures

Daniel A. Brue·Jeremy M. Hutson
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Abstract

We investigate the possibility of forming Li+Yb ultracold molecules by magnetoassociation in mixtures of ultracold atoms. We find that magnetically tunable Feshbach resonances exist, but are extremely narrow for even-mass ytterbium isotopes, which all have zero spin. For odd-mass Yb isotopes, however, there is a new mechanism due to hyperfine coupling between the electron spin and the Yb nuclear magnetic moment. This mechanism produces Feshbach resonances for fermionic Yb isotopes that can be more than 2 orders of magnitude larger than for the bosonic counterparts.

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Daniel A. Brue, Jeremy M. Hutson. 2011-10-25. Magnetically tunable Feshbach resonances in ultracold Li-Yb mixtures. https://doi.org/10.1103/physrevlett.108.043201

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