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arXiv · 1006.3006

Ultracold RbSr molecules can be formed by magnetoassociation

Piotr S. Zuchowski·J. Aldegunde·Jeremy M. Hutson
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Abstract

We investigate the interactions between ultracold alkali metal atoms and closed-shell atoms using electronic structure calculations on the prototype system Rb+Sr. There are molecular bound states that can be tuned across atomic thresholds with magnetic field, and there are previously neglected terms in the collision Hamiltonian that can produce zero-energy Feshbach resonances with significant widths. The largest effect comes from the interaction-induced variation of the Rb hyperfine coupling. The resonances may be used to form paramagnetic polar molecules if the magnetic field can be controlled precisely enough.

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Piotr S. Zuchowski, J. Aldegunde, Jeremy M. Hutson. 2010-06-15. Ultracold RbSr molecules can be formed by magnetoassociation. https://doi.org/10.1103/physrevlett.105.153201

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