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Hyperfine energy levels of alkali-metal dimers : ground-state polar molecules in electric and magnetic fields

Aldegunde, J.; Rivington, Ben A.; Zuchowski, Piotr S.; Hutson, Jeremy M.

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Authors

J. Aldegunde

Ben A. Rivington

Piotr S. Zuchowski



Abstract

We investigate the energy levels of heteronuclear alkali-metal dimers in levels correlating with the lowest rotational level of the ground electronic state, which are important in efforts to produce ground-state ultracold molecules. We use density-functional theory to calculate nuclear quadrupole and magnetic coupling constants for KRb and RbCs and explore the hyperfine structure in the presence of electric and magnetic fields. For nonrotating states, the zero-field splittings are dominated by the electron-mediated part of the nuclear spin-spin coupling. They are a few kilohertz for KRb isotopologs and a few tens of kilohertz for RbCs isotopologs.

Citation

Aldegunde, J., Rivington, B. A., Zuchowski, P. S., & Hutson, J. M. (2008). Hyperfine energy levels of alkali-metal dimers : ground-state polar molecules in electric and magnetic fields. Physical Review A, 78(3), Article 033434. https://doi.org/10.1103/physreva.78.033434

Journal Article Type Article
Publication Date Sep 1, 2008
Deposit Date Jun 19, 2013
Publicly Available Date Mar 28, 2024
Journal Physical Review A
Print ISSN 1050-2947
Electronic ISSN 1094-1622
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 78
Issue 3
Article Number 033434
DOI https://doi.org/10.1103/physreva.78.033434

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Copyright Statement
© 2008 The American Physical Society




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