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Ultracold RbSr molecules can be formed by magnetoassociation.

Żuchowski, P.S. and Aldegunde, J. and Hutson, J.M. (2010) 'Ultracold RbSr molecules can be formed by magnetoassociation.', Physical review letters., 105 (15). p. 153201.

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.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1103/PhysRevLett.105.153201
Publisher statement:© 2010 The American Physical Society
Date accepted:No date available
Date deposited:10 July 2013
Date of first online publication:October 2010
Date first made open access:No date available

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