Theoretical study of the hyperfine interaction constants, Landé  g-factors, and electric quadrupole moments for the low-lying states of the 61Niq+ ( q=11, 12, 14 , and 15) ions

doi:10.1088/1674-1056/abc7a3

中国物理B ›› 2021, Vol. 30 ›› Issue (1): 13101-.doi: 10.1088/1674-1056/abc7a3

所属专题： SPECIAL TOPIC — Ultracold atom and its application in precision measurement

收稿日期:2020-09-09 修回日期:2020-10-20 接受日期:2020-11-05 出版日期:2020-12-17 发布日期:2020-12-23

Theoretical study of the hyperfine interaction constants, Landé g-factors, and electric quadrupole moments for the low-lying states of the ⁶¹Ni^q+ ( q=11, 12, 14 , and 15) ions

Ting-Xian Zhang(张婷贤)^1,2, Yong-Hui Zhang(张永慧)¹, Cheng-Bin Li(李承斌)^1,†, and Ting-Yun Shi(史庭云)¹

1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China; 2 University of Chinese Academy of Sciences, Beijing 100049, China

Received:2020-09-09 Revised:2020-10-20 Accepted:2020-11-05 Online:2020-12-17 Published:2020-12-23
Contact: ^†Corresponding author. E-mail: cbli@wipm.ac.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11704398 and 11934014), the National Key Research and Development Program of China (Grant No. 2017YFA0304402), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB21030300).

摘要/Abstract

Abstract: Highly charged nickel ions have been suggested as candidates for the ultra-precise optical clock, meanwhile the relevant experiment has been carried out. In the framework of the multiconfiguration Dirac-Hartree-Fock (MCDHF) method, we calculated the hyperfine interaction constants, the Landé g-factors, and the electric quadrupole moments for the low-lying states in the ⁶¹Ni¹¹⁺, ⁶¹Ni¹²⁺, ⁶¹Ni¹⁴⁺, and ⁶¹Ni¹⁵⁺ ions. These states are clock states of the selected clock transitions in highly charged nickel ions (see Fig. \fref1 1). Based on discussing the effects of the electron correlations, the Breit interaction, and quantum electrodynamics (QED) effect on these physical quantities, reasonable uncertainties were obtained for our calculated results. In addition, the electric quadrupole frequency shifts and the Zeeman frequency shifts of the clock transitions concerned were analyzed.

Key words: hyperfine interaction, Landé, g-factors, electric quadrupole moment, multiconfiguration Dirac-Hartree-Fock (MCDHF) method

中图分类号: (Electron correlation calculations for atoms and ions: ground state)

31.15.ve

31.15.vj (Electron correlation calculations for atoms and ions: excited states) 31.15.aj (Relativistic corrections, spin-orbit effects, fine structure; hyperfine structure) 32.60.+i (Zeeman and Stark effects)

. [J]. 中国物理B, 2021, 30(1): 13101-.

Ting-Xian Zhang(张婷贤), Yong-Hui Zhang(张永慧), Cheng-Bin Li(李承斌), and Ting-Yun Shi(史庭云). Theoretical study of the hyperfine interaction constants, Landé g-factors, and electric quadrupole moments for the low-lying states of the ⁶¹Ni^q+ ( q=11, 12, 14 , and 15) ions[J]. Chin. Phys. B, 2021, 30(1): 13101-.

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Theoretical study of the hyperfine interaction constants, Landé g-factors, and electric quadrupole moments for the low-lying states of the ⁶¹Ni^q+ ( q=11, 12, 14 , and 15) ions

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