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Prospects of forming high-spin polar molecules from ultracold atoms.

Frye, Matthew D. and Cornish, Simon L. and Hutson, Jeremy M. (2020) 'Prospects of forming high-spin polar molecules from ultracold atoms.', Physical review X., 10 (4). 041005.


We investigate Feshbach resonances in collisions of high-spin atoms such as Er and Dy with closed-shell atoms such as Sr and Yb, using coupled-channel scattering and bound-state calculations. We consider both low-anisotropy and high-anisotropy limits. In both regimes, we find many resonances with a wide variety of widths. The wider resonances are suitable for tuning interatomic interactions, while some of the narrower resonances are highly suitable for magnetoassociation to form high-spin molecules. These molecules might be transferred to short-range states, where they would have large magnetic moments and electric dipole moments that can be induced with very low electric fields. The results offer the opportunity to study mixed quantum gases where one species is dipolar and the other is not and open up important prospects for a new field of ultracold high-spin polar molecules.

Item Type:Article
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Publisher statement:Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Date accepted:22 July 2020
Date deposited:28 July 2020
Date of first online publication:07 October 2020
Date first made open access:08 October 2020

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