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Magnetically tunable Feshbach resonances in ultracold Li-Yb mixtures.

Brue, Daniel A. and Hutson, Jeremy M. (2012) 'Magnetically tunable Feshbach resonances in ultracold Li-Yb mixtures.', Physical review letters., 108 (4). 043201.


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.

Item Type:Article
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Publisher statement:© 2012 American Physical Society
Date accepted:No date available
Date deposited:28 June 2013
Date of first online publication:2012
Date first made open access:No date available

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