原子与分子物理学报2024，Vol.41Issue(6)：103-108,6.DOI:10.19855/j.1000-0364.2024.064002
两态模型中的振动态布居转移
The vibrational population transfer in two-state model
摘要
Abstract
Taking LiH polar diatomic molecule for instance,the dynamical process of population transfer in the two-state model,from the ground electronic state X1∑+to the excited electronic state A1∑+through transition dipole moment,is studied theoretically.The time-dependent quantum wavepacket method is used to solve two coupled Schrödinger equation numerically.The population transfers of ground and excited electronic states through the interaction of laser pulse and molecular permanent dipole moments are also considered.These popu-lation transfer processes are realized using short linearly polarized laser pulses in the ultraviolet(UV)and infra-red(IR)regions.By selecting the peak intensity,central frequency,duration of laser pulses,etc,the final population transfer probability is more than 90％after the laser pulse is turned off.关键词
布居转移/两态模型/含时量子波包Key words
Population transfer/Two-state model/Time-dependent quantum wavepacket分类
数理科学引用本文复制引用
胡晋伟,雷永清,张华..两态模型中的振动态布居转移[J].原子与分子物理学报,2024,41(6):103-108,6.基金项目
国家自然科学基金(12174044) （12174044）
