Li Zhonghao, Gong Ting, Ji Zhonghua, Zhao Yanting, Xiao Liantuan, Jia Suotang
Shanxi University, State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Wucheng Rd. 92, 030006 Taiyuan, China.
Phys Chem Chem Phys. 2018 Feb 14;20(7):4893-4900. doi: 10.1039/c7cp07756d.
We investigate the dynamical process of optically trapped XΣ (v'' = 0) state RbCs molecules distributed in J'' = 1 and J'' = 3 rotational states. The considered molecules, formed from short-range photoassociation of mixed cold atoms, are subsequently confined in a crossed optical dipole trap. Based on a phenomenological rate equation, we provide a detailed study of the dynamics of RbCs molecules during the loading and holding processes. The inelastic collisions of RbCs molecules in the XΣ (v'' = 0, J'' = 1 and J'' = 3) states with ultracold Rb (or Cs) atoms are measured to be 1.0 (2) × 10 cm s (1.2 (3) × 10 cm s). Our work provides a simple and generic procedure for studying the dynamical process of trapped cold molecules in the singlet ground states.
我们研究了分布在(J'' = 1)和(J'' = 3)转动态的光学捕获的(XΣ (v'' = 0))态铷铯分子的动力学过程。所考虑的分子由混合冷原子的短程光缔合形成，随后被限制在交叉光学偶极阱中。基于一个唯象速率方程，我们对铷铯分子在装载和保持过程中的动力学进行了详细研究。测量得到处于(XΣ (v'' = 0, J'' = 1)和(J'' = 3))态的铷铯分子与超冷铷（或铯）原子的非弹性碰撞速率为(1.0 (2) × 10 cm s)（(1.2 (3) × 10 cm s)）。我们的工作为研究捕获在单重基态的冷分子的动力学过程提供了一个简单且通用的程序。
