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arXiv · 1211.2888

Ultracold mixtures of atomic Li-6 and Cs-133 with tunable interactions

Shih-Kuang Tung·Colin Parker·Jacob Johansen·Cheng Chin·Yujun Wang·Paul S. Julienne
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Abstract

We report the experimental and theoretical study of two-body interactions in a $^{6}$Li-$^{133}$Cs Fermi- Bose mixture. Using a translatable dipole trap setup, we have successfully trapped the two species in the same trap with temperatures of a few microkelvins. By monitoring atom number loss and inter-species thermalization, we identify five s-wave interspecies Feshbach resonances in the lowest two scattering channels. We construct a coupled channels model using molecular potentials to fit and characterize these resonances. Two of the resonances are as wide as 60 G and thus should be suitable for creating Feshbach molecules and searching for universal few-body scaling.

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Shih-Kuang Tung, Colin Parker, Jacob Johansen, Cheng Chin, Yujun Wang, Paul S. Julienne. 2012-11-13. Ultracold mixtures of atomic Li-6 and Cs-133 with tunable interactions. https://doi.org/10.1103/physreva.87.010702

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