2024/04/01 by Boyang Wang, Wang, Bo-Yang, Yifan Wang +11
Physics and Astronomy · Chemistry · Materials Science · #Atomic and Molecular Physics #Radioactive element chemistry and processing #Luminescence Properties of Advanced Materials
paper · pdf · doi:10.48550/arxiv.2404.01098
We report on the observation of a conspicuous loss in an ultracold mixture of 7Li and 88Sr 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 K3 at T∼ 18.5,45,70,600 μK. 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 7Li and 88Sr atoms, and essentially rules out the prospect of realizing 7Li and 88Sr mixtures of high phase space density.