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

Owens, D.J.; Xie, T; Hutson, J.M.

doi:10.1103/physreva.94.023619

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

Owens, D.J.; Xie, T; Hutson, J.M.

Authors

D.J. Owens

T Xie

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

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.

Citation

Owens, D., Xie, T., & Hutson, J. (2016). Creating Feshbach resonances for ultracold molecule formation with radio-frequency fields. Physical Review A, 94(2), Article 023619. https://doi.org/10.1103/physreva.94.023619

Journal Article Type	Article
Acceptance Date	May 13, 2016
Online Publication Date	Aug 15, 2016
Publication Date	Aug 15, 2016
Deposit Date	Jul 25, 2016
Publicly Available Date	Aug 30, 2016
Journal	Physical Review A
Print ISSN	2469-9926
Electronic ISSN	2469-9934
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	94
Issue	2
Article Number	023619
DOI	https://doi.org/10.1103/physreva.94.023619
Related Public URLs	https://arxiv.org/abs/1606.09441

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Copyright 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.