Ultracold RbSr Molecules Can Be Formed by Magnetoassociation

Żuchowski, PS; Aldegunde, J; Hutson, JM

doi:10.1103/physrevlett.105.153201

Ultracold RbSr Molecules Can Be Formed by Magnetoassociation

Żuchowski, PS; Aldegunde, J; Hutson, JM

Authors

PS Żuchowski

J Aldegunde

Professor Jeremy Hutson j.m.hutson@durham.ac.uk
Professor

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 a magnetic field and 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.

Citation

Żuchowski, P., Aldegunde, J., & Hutson, J. (2010). Ultracold RbSr Molecules Can Be Formed by Magnetoassociation. Physical Review Letters, 105(15), Article 153201. https://doi.org/10.1103/physrevlett.105.153201

Journal Article Type	Article
Publication Date	Oct 1, 2010
Deposit Date	Feb 2, 2012
Publicly Available Date	Jul 10, 2013
Journal	Physical Review Letters
Print ISSN	0031-9007
Electronic ISSN	1079-7114
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	105
Issue	15
Article Number	153201
DOI	https://doi.org/10.1103/physrevlett.105.153201