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Creating Feshbach resonances for ultracold molecule formation with radio-frequency fields.

Owens, D. J. and Xie, T. and Hutson, J. M. (2016) 'Creating Feshbach resonances for ultracold molecule formation with radio-frequency fields.', Physical review A., 94 (2). 023619.

Abstract

We show that radio-frequency (rf) radiation may be used to create Feshbach resonances in ultracold gases of alkali-metal atoms at desired magnetic fields that are convenient for atomic cooling and degeneracy. For the case of K39+Cs133, where there are no rf-free resonances in regions where Cs may be cooled to degeneracy, we show that a resonance may be created near 21 G with 69.2 MHz rf radiation. This resonance is almost lossless with circularly polarized rf, and the molecules created are long-lived even with plane-polarized rf.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1103/PhysRevA.94.023619
Publisher statement:Reprinted with permission from the American Physical Society: Owens, D. J. and Xie, T. and Hutson, J. M. (2016) 'Creating Feshbach resonances for ultracold molecule formation with radio-frequency fields.', Physical review A., 94 (2). 023619 © 2016 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.
Date accepted:13 May 2016
Date deposited:30 August 2016
Date of first online publication:15 August 2016
Date first made open access:30 August 2016

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