Calculations of atomic polarizability for beryllium using MCDHF method

• 作者: Hui Dong Jun Jiang Zhongwen Wu Chenzhong Dong Gediminas Gaigalas
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2021,（4）
• 所属期刊栏目: ATOMIC AND MOLECULAR PHYSICS
• 页码范围: 237-242
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/abd92d

摘要

Based on the fully relativistic multiconfiguration Dirac-Hartree-Fock(MCDHF)method and the corresponding pro-gram package GRASP2018,a new program for calculating the polarizabilities is developed.As the first application,the static electric-dipole polarizabilities of the ground state 2s21 S0 and excited state 2s2p 3P0 of beryllium are calculated.By means of these polarizabilities,the blackbody radiation(BBR)shift of the 2s2p 3P0→2s2 1S0 clock transition is deter-mined.The present results agree very well with other available theoretical results.