1. Measurement of three-body recombination coefficient of ultracold lithium and strontium atoms
- Author
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Wang, Bo-Yang, Wang, Yi-Fan, An, Zi-He, Xie, Li-Yang, Ye, Zhu-Xiong, Zhang, Yi, and Tey, Meng Khoon
- Subjects
Physics - Atomic Physics ,Condensed Matter - Quantum Gases - Abstract
We report on the observation of a conspicuous loss in an ultracold mixture of $^{7}$Li and $^{88}$Sr atoms confined in a far-off-resonance optical dipole trap. We attribute the trap loss to the three-body inelastic Li-Sr-Sr collision and extract the corresponding three-body recombination coefficient $K_3$ at $T\sim 18.5,45,70,600$ $\mu K$. The measured three-body recombination coefficient is about two to three orders of magnitude larger than the typical values convenient for realizing quantum degenerate gases. It also indicates a potentially large $s$-wave scattering length between the bosonic $^{7}$Li and $^{88}$Sr atoms, and essentially rules out the prospect of realizing $^7$Li and $^{88}$Sr mixtures of high phase space density., Comment: 6 pages
- Published
- 2024