Ultracold Heteronuclear Mixtures

本项目主要研究由多原子种类组成的冷却和捕获原子蒸汽。这项工作将从激光冷却和捕获原子混合物开始，这些原子混合物是在一种新型的多物种磁光阱中制备的。重点介绍了四个方面：1)光结合产生超冷异核分子的来源；2)超冷异核分子的不同捕集器设计研究；3)原子-原子、原子-分子、分子-分子散射参数的测量；4)研究了复杂系统中玻色-爱因斯坦凝聚体的性质。这些实验将伴随着理论研究。

This project focuses on investigations of cooled and trapped atomic vapors composed of multiple atomic species. The work will begin with laser cooled and trapped atomic mixtures prepared in a novel multi-species magneto-optical trap. Four areas are emphasized: 1) photoassociation to create a source of ultracold heteronuclear molecules; 2) an investigation of different trap designs for trapping ultracold heteronuclear molecules; 3) a measurement of atom-atom, atom-molecule, and molecule-molecule scattering parameters; and 4) an investigation of the properties of Bose-Einstein condensates of complex systems. The experiments will be accompanied by theoretical investigations.