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arXiv · 1711.09467

Hyperfine structure of 2Sigma molecules containing alkaline-earth atoms

Jesus Aldegunde·Jeremy M. Hutson
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Abstract

Ultracold molecules with both electron spin and an electric dipole moment offer new possibilities in quantum science. We use density-functional theory to calculate hyperfine coupling constants for a selection of molecules important in this area, including RbSr, LiYb, RbYb, CaF and SrF. We find substantial hyperfine coupling constants for the fermionic isotopes of the alkaline-earth and Yb atoms. We discuss the hyperfine level patterns and Zeeman splittings expected for these molecules. The results will be important both to experiments aimed at forming ultracold open-shell molecules and to their applications.

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Jesus Aldegunde, Jeremy M. Hutson. 2017-11-26. Hyperfine structure of 2Sigma molecules containing alkaline-earth atoms. https://doi.org/10.1103/physreva.97.042505

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