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Magnetic Feshbach resonances in ultracold collisions between Cs and Yb atoms.

Yang, B. C. and Frye, Matthew D. and Guttridge, A. and Aldegunde, Jesus and Żuchowski, Piotr S. and Cornish, Simon L. and Hutson, Jeremy M. (2019) 'Magnetic Feshbach resonances in ultracold collisions between Cs and Yb atoms.', Physical review A., 100 (2). 022704.

Abstract

We investigate magnetically tunable Feshbach resonances in ultracold collisions between ground-state Yb and Cs atoms, using coupled-channel calculations based on an interaction potential recently determined from photoassociation spectroscopy. We predict resonance positions and widths for all stable isotopes of Yb, together with resonance decay parameters where appropriate. The resonance patterns are richer and more complicated for fermionic Yb than for spin-zero isotopes, because there are additional level splittings and couplings due to scalar and tensorial Yb hyperfine interactions. We examine collisions involving Cs atoms in a variety of hyperfine states and identify resonances that appear most promising for experimental observation and for magnetoassociation to form ultracold CsYb molecules.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1103/PhysRevA.100.022704
Publisher statement:Reprinted with permission from the American Physical Society: Yang, B. C., Frye, Matthew D., Guttridge, A., Aldegunde, Jesus, Żuchowski, Piotr S., Cornish, Simon L. & Hutson, Jeremy M. (2019). Magnetic Feshbach resonances in ultracold collisions between Cs and Yb atoms. Physical Review A 100(2): 022704. © 2019 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:16 July 2019
Date deposited:20 August 2019
Date of first online publication:15 August 2019
Date first made open access:20 August 2019

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