Magnetic Feshbach resonances in ${}^7\text{Li}{-}^{133}\text{Cs}$ mixtures

Abstract

Motivated by the prospect of observing Efimov and Bose polaron physics in ultracold mixtures of bosonic atoms with large mass imbalance, this work investigates the magnetic Feshbach resonances between ${}^7\text{Li}$ and ${}^{133}\text{Cs}$. The resonances are predicted at the 1 gauss level using the model of Pires et al. [Phys. Rev. A, 90, 012710] obtained from experimental observations of resonances between ${}^6\text{Li}$ and ${}^{133}\text{Cs}$. It is found that a few resonances in a practical range of magnetic field intensity could be used to tune the scattering length between ${}^7\text{Li}$ and ${}^{133}\text{Cs}$ atoms. Opportunities for observing Efimov and Bose polaron physics are discussed.

arXiv comment5 pages, 4 figures, 2 tables

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• Feshbach Resonances in Ultracold Gases
• Extreme tunability of interactions in a ${}^7$Li Bose-Einstein condensate
• Observation of Efimov Resonances in a Mixture with Extreme Mass Imbalance
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• Feshbach resonances, weakly bound molecular states and coupled-channel potentials for cesium at high magnetic fields
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Cited by in corpus (1)

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