中国物理B ›› 2018, Vol. 27 ›› Issue (6): 63101-063101.doi: 10.1088/1674-1056/27/6/063101

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

Determination of static dipole polarizabilities of Yb atom

Zhi-Ming Tang(唐志明), Yan-Mei Yu(于艳梅), Chen-Zhong Dong(董晨钟)   

  1. 1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China
  • 收稿日期:2018-03-05 修回日期:2018-03-19 出版日期:2018-06-05 发布日期:2018-06-05
  • 通讯作者: Yan-Mei Yu, Chen-Zhong Dong E-mail:ymyu@aphy.iphy.ac.cn;dongcz@nwnu.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos.91536106 and U1332206),the Strategic Priority Research Program (Category B) of the Chinese Academy of Sciences (Grant No.21030300),and the National Key Research and Development Program of China (Grant No.2016YFA0302104).

Determination of static dipole polarizabilities of Yb atom

Zhi-Ming Tang(唐志明)1,2, Yan-Mei Yu(于艳梅)1, Chen-Zhong Dong(董晨钟)2   

  1. 1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China
  • Received:2018-03-05 Revised:2018-03-19 Online:2018-06-05 Published:2018-06-05
  • Contact: Yan-Mei Yu, Chen-Zhong Dong E-mail:ymyu@aphy.iphy.ac.cn;dongcz@nwnu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos.91536106 and U1332206),the Strategic Priority Research Program (Category B) of the Chinese Academy of Sciences (Grant No.21030300),and the National Key Research and Development Program of China (Grant No.2016YFA0302104).

摘要:

We determine the static values of the scalar and tensor dipole polarizabilities of the ground, 6s6p3P0o, and 6s6p3P1o states of the Yb atom. These results can be useful in many experiments undertaken using this atom. We employed a combined configuration interaction (CI) method and a second-order many-body perturbation theory (MBPT) to evaluate energies and electric dipole (E1) matrix elements of many low-lying excited states of the above atom. These values are compared with the other available theoretical calculations and experimental values. By combining these E1 matrix elements with the experimental excitation energies, we estimate the dominant valence correlation contributions to the dipole polarizabilities of the above states. The core contribution is obtained from the finite field approach. We also compare these values with the other theoretical results as there are no precise experimental values that are available for these properties.

关键词: ytterbium atom, polarizabilities, configuration interaction, many-body perturbation

Abstract:

We determine the static values of the scalar and tensor dipole polarizabilities of the ground, 6s6p3P0o, and 6s6p3P1o states of the Yb atom. These results can be useful in many experiments undertaken using this atom. We employed a combined configuration interaction (CI) method and a second-order many-body perturbation theory (MBPT) to evaluate energies and electric dipole (E1) matrix elements of many low-lying excited states of the above atom. These values are compared with the other available theoretical calculations and experimental values. By combining these E1 matrix elements with the experimental excitation energies, we estimate the dominant valence correlation contributions to the dipole polarizabilities of the above states. The core contribution is obtained from the finite field approach. We also compare these values with the other theoretical results as there are no precise experimental values that are available for these properties.

Key words: ytterbium atom, polarizabilities, configuration interaction, many-body perturbation

中图分类号:  (Theory of electronic structure, electronic transitions, and chemical binding)

  • 31.10.+z
31.15.am (Relativistic configuration interaction (CI) and many-body perturbation calculations) 31.15.ap (Polarizabilities and other atomic and molecular properties) 31.15.bw (Coupled-cluster theory)