Measurement of S-Wave Scattering Length between 6Li and 88Sr Atoms Using Interspecies Thermalization in an Optical Dipole Trap**Supported by the National Key Research and Development Program of China under Grant Nos 2018YFA0306503 and 2018YFA0306504, and the National Natural Science Foundation of China under Grant Nos 91636213, 91736311, 11574177, 91836302 and 11654001.

Abstract

We report the creation of the first mixture of 6Li and 88Sr atoms in an optical dipole trap. Using this mixture, a measurement of the interspecies thermalization process is carried out and the previously unknown interspecies s-wave scattering length between 6Li and 88Sr atoms is extracted to be with a0 being the Bohr radius from the rate of interspecies thermalization.