Magnetically Tunable Feshbach Resonances in Ultracold Li-Yb Mixtures
Magnetically Tunable Feshbach Resonances in Ultracold Li-Yb Mixtures
We investigate the possibility of forming $\mathrm{Li}+\mathrm{Yb}$ 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 …