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.
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.
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|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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