澳大利亚昆士兰大学J. S. M. Ginges团队研究了多电子原子超精细结构的真空极化校正。该项研究成果发表在2025年3月18日出版的《物理评论A》杂志上。

研究组对多电子原子超精细结构的真空极化校正进行了理论研究。对属于碱金属原子和单电离碱土的基础物理精确原子测试的感兴趣系统进行计算。在Uehling近似下考虑了真空极化，他们在相对论框架下研究了多体效应核弛豫、核极化和价核关联。

研究结果发现，对于s态，相对真空极化校正可以很好地近似于类氢离子的校正，尽管对于所有其他态，需要考虑多体效应，特别是核心的极化，才能获得校正的正确符号和幅度。

附：英文原文

Title: Vacuum polarization corrections to hyperfine structure in many-electron atoms

Author: J. C. Hasted, C. J. Fairhall, O. R. Smits, B. M. Roberts, J. S. M. Ginges

Issue&Volume: 2025/03/18

Abstract: We perform a theoretical study of vacuum polarization corrections to the hyperfine structure in many-electron atoms. Calculations are performed for systems of interest for precision atomic tests of fundamental physics belonging to the alkali-metal atoms and singly ionized alkaline earths. The vacuum polarization is considered in the Uehling approximation, and we study the many-body effects core relaxation, core polarization, and valence-core correlations in the relativistic framework. We find that for s states, the relative vacuum polarization correction may be well approximated by that for hydrogenlike ions, though for all other states an account of the many-body effects, in particular, the polarization of the core, is needed to obtain the correct sign and magnitude of the correction.

DOI: 10.1103/PhysRevA.111.032812

Source: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.111.032812