铥原子收敛于4f^(13)(~2F~?_(7/2))6s(7/2,1/2)~?_4和4f^(13)(~2F~?7/2)6s(7/2,1/2)~?_3偶宇称里德伯系列能级的电子关联效应  

Electron correlation effects in even Rydberg series converging to 4f^(13)(~2F~?_(7/2))6s(7/2, 1/2)~?_4 and 4f^(13)(~2F~?7/2)6s(7/2, 1/2)~?_3 of thulium atom

作　　者：张典承 张颍 李晓康 贾凤东 李若虹 钟志萍 Zhang Dian-Cheng;Zhang Ying;Li Xiao-Kang;Jia Feng-Dong;R.Li;Zhong Zhi-Ping(Collage of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;TRIUMF,University of British Columbia,Vancouver,British Columbia,Canada V6T 2A3;Center of Excellence in Topological Quantum Computation,Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院大学物理科学学院,北京100049 [2]卑诗大学核子研究所 [3]中国科学院"拓扑量子计算"卓越中心,北京100049

出　　处：《物理学报》2018年第18期66-72,共7页Acta Physica Sinica

基　　金：国家重点研发计划(批准号:2017YFA0402300;2017YFA0304900);国家自然科学基金(批准号:11604334);中国科学院先导项目(批准号:XDPB08-3)资助的课题~~

摘　　要：本文在多通道量子亏损理论框架下,利用相对论多通道理论,计算了铥原子收敛于4f^(13)(~2F?_(7/2))6s(7/2,1/2)?_4和4f^(13)(~2F?7/2)6s(7/2,1/2)?_3的三个偶宇称里德伯系列.通过将计算结果与美国国家标准与技术研究院数据进行比较,展示了两种类型的电子关联效应:1)里德伯系列之间的相互作用,导致里德伯系列的能级出现整体偏移; 2)一个孤立的干扰态镶嵌在一个里德伯系列中,破坏了该里德伯系列能级的规则性.In the frame work of multi-channel quantum defect theory（MQDT）, the energy levels of three even Rydberg series 4f^13（^2F°7/2）6s（7/2,1/2）°4和4f^13（^2F°7/2）6s（7/2,1/2）°3 converging to 4f^13（^2F°7/2）6s（7/2,1/2）°4和4f^13（^2F°7/2）6s（7/2,1/2）°3 of thulium atom are calculated by relativistic multi-channel theory. Compared with the experimental data from National Institute of Standards and Technology（NIST）, the theoretical result shows two different types of electron-correlation effects： 1） the interaction between two Rydberg series results in energy shifts for these Rydberg series; 2） an isolated perturbed state is embedded in the energy range of a Rydberg series and interacts with the whole series, and breaks the regularity of the Rydberg series, and quantum defects show a large jump around the perturbed state. More specifically, by comparing the present calculated quantum defects with the experimental data, we reassign two Rydberg series： 1） 4f^13（^2F°（7/2））6s（7/2, 1/2）°4np（3/2） Rydberg series from NIST is reassigned as 4f^13（^2F°（7/2））6s（7/2, 1/2）°4nf（5/2）, J^π=（5/2）＋, 4 f^13（^2F°（7/2））6s（7/2, 1/2）°4nf（5/2）, J^π=（7/2）^＋ and/or 4f^13（^2F°（7/2））6s（7/2, 1/2）°4np（1/2）, J^π=（9/2）^＋ Rydberg series, and the difference between experimental and calculated quantum defects is generally better than 0.1; 2） 4f^13（^2F°（7/2））6 s（7/2, 1/2）°3np（3/2） Rydberg series from NIST is reassigned as 4f^13（^2F°（7/2））6s（7/2, 1/2）°3nf（7/2）, J^π=（5/2）^＋, 4f^13（^2F°（7/2））6s（7/2, 1/2）°3nf（7/2）,J^π=（7/2）^＋ and/or 4f^13（^2F°（7/2））6s（7/2, 1/2）°3nf（5/2,7/2）, J^π=（9/2）^＋ Rydberg series, and the difference between experimental and calculated quantum defects is generally better than 0.05. As for the 4f^13（^2F°（7/2））6s（7/2, 1/2）°3np（1/2） Rydberg series from NIST, we find there is a perturbed sta

关 键 词：相对论多通道理论 多通道量子亏损理论 里德伯系列 

分 类 号：O562[理学—原子与分子物理]