Three-dimensional modeling of magneto-optical trapping of MgF molecules with multilevel rate equations
Three-dimensional modeling of magneto-optical trapping of MgF molecules with multilevel rate equations
复制标题
利用多级速率方程对 MgF 分子磁光捕获进行三维建模
DOI：
10.1103/physreva.99.033408
复制
发表时间：
2019
影响因子：
2.9
通讯作者：
Yin Jianping
中科院分区：
文献类型：
--
作者：
Xu Supeng;Xia Meng;Gu Ruoxi;Yin Yanning;Xu Liang;Xia Yong;Yin Jianping
采用三维速率方程对氟化镁（MgF）的磁光俘获（MOT）力进行了理论研究，其中考虑了复杂的振动和转动能级以及内部小分裂和简并效应，包括精细和超精细结构以及磁量子数.我们研究了MgF在激发态g因子很小（g_{e} =-0.0002 $）和辐射衰减率很大（γ = 2 π × 22 MHz）的情况下，从X^2 {\Sigma}^{+}$到A^2\Pi_{1/2}$电子跃迁的MOT的可行性.我们还优化了MOT参考三，四和更多的频率分量模型与各种偏振配置和失谐。通过将双频排列应用于多个超精细能级，我们提出了3+1频率分量的配置，以实现MgF的MOT。
We present a theoretical study of magneto-optical trapping (MOT) force exerted on magnesium monofluoride (MgF) with 3D rate equations, in which we have considered the complex vibrational and rotational levels and the effects of small internal splittings and degeneracies,including fine and hyperfine structures and the magnetic quantum numbers. We investigate the feasibility of MOT for MgF with a very small excited state g-factor ($g_{e} = -0.0002$) and a large radiative decay reate (${\Gamma} = 2{\pi}\times22$MHz) for the electronic transition of X$^2{\Sigma}^{+}$ to A$^2\Pi_{1/2}$ states. We also optimize the MOT with reference to the three-, four- and more-frequency component models with various polarization configurations and detunings. By applying the dual frequency arrangement to more than one hyperfine level, we suggest a configuration of the 3+1 frequency components for achieving the MOT of MgF.