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arXiv:2205.08837 · Physical Review A

Feshbach resonances in an ultracold Li7−133Cs Bose-Bose mixture

W.-X. Li, Y.-D. Chen, Y.-T. Sun, Shih-Kuang Tung, Paul S. Julienne

Published Aug 25, 2022• 3 citations
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Abstract

We present a study of interspecies Feshbach resonances in ultracold $^{7}\mathrm{Li}{\text{\ensuremath{-}}}^{133}\mathrm{Cs}$ Bose-Bose mixtures. We locate ten interspecies resonances in three different spin-state combinations. By comparing to coupled-channel calculations, we assign six of the resonances to $s$-wave channels and the rest to $p$-wave channels. We use the $s$-wave resonances to refine the ground-state potentials of LiCs in the coupled-channel calculations and then obtain an accurate characterization of the scattering and bound-state properties of the mixtures. Our results will be useful for future experiments with ultracold $^{7}\mathrm{Li}{\text{\ensuremath{-}}}^{133}\mathrm{Cs}$ mixtures.

DOI
10.1103/physreva.106.023317

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