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Chin. Phys. B, 2018, Vol. 27(6): 063101    DOI: 10.1088/1674-1056/27/6/063101
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

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 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
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.

Keywords:  ytterbium atom      polarizabilities      configuration interaction      many-body perturbation     
Received:  05 March 2018      Published:  05 June 2018
PACS:  31.10.+z (Theory of electronic structure, electronic transitions, and chemical binding)  
  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)  
Fund: 

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).

Corresponding Authors:  Yan-Mei Yu, Chen-Zhong Dong     E-mail:  ymyu@aphy.iphy.ac.cn;dongcz@nwnu.edu.cn

Cite this article: 

Zhi-Ming Tang(唐志明), Yan-Mei Yu(于艳梅), Chen-Zhong Dong(董晨钟) Determination of static dipole polarizabilities of Yb atom 2018 Chin. Phys. B 27 063101

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