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arXiv · 2205.08837

Feshbach resonances in an ultracold $^{7}$Li-$^{133}$Cs Bose-Bose mixture

W. -X. Li·Y. -D. Chen·Y. -T. Sun·S. Tung·Paul S. Julienne
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Abstract

We present a study of interspecies Feshbach resonances in ultracold $^{7}$Li-$^{133}$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 $^{7}$Li-$^{133}$Cs mixtures.

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W. -X. Li, Y. -D. Chen, Y. -T. Sun, S. Tung, Paul S. Julienne. 2022-05-18. Feshbach resonances in an ultracold $^{7}$Li-$^{133}$Cs Bose-Bose mixture. https://doi.org/10.1103/physreva.106.023317

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