Precision calculation of fine structure in helium and Li+

doi:10.1088/1674-1056/24/3/033101

中国物理B ›› 2015, Vol. 24 ›› Issue (3): 33101-033101.doi: 10.1088/1674-1056/24/3/033101

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Precision calculation of fine structure in helium and Li⁺

张佩佩^{a b}, 钟振祥^a, 严宗朝^{a c}, 史庭云^a

a Division of Theoretical and Interdisciplinary Research, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, and Center for Cold Atom Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;
b University of Chinese Academy of Sciences, Beijing 100049, China;
c Department of Physics, University of New Brunswick, Fredericton, New Brunswick E3B 5A3, Canada

收稿日期:2014-04-24 修回日期:2014-06-23 出版日期:2015-03-05 发布日期:2015-03-05
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2010CB832803).

Precision calculation of fine structure in helium and Li⁺

Zhang Pei-Pei (张佩佩)^{a b}, Zhong Zhen-Xiang (钟振祥)^a, Yan Zong-Chao (严宗朝)^{a c}, Shi Ting-Yun (史庭云)^a

a Division of Theoretical and Interdisciplinary Research, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, and Center for Cold Atom Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;
b University of Chinese Academy of Sciences, Beijing 100049, China;
c Department of Physics, University of New Brunswick, Fredericton, New Brunswick E3B 5A3, Canada

Received:2014-04-24 Revised:2014-06-23 Online:2015-03-05 Published:2015-03-05
Contact: Zhong Zhen-Xiang E-mail:zxzhong@wipm.ac.cn
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2010CB832803).

摘要/Abstract

摘要：

The fine structure constant α can be extracted from high-precision spectroscopy of the 2³P_J fine structure splittings in helium and light helium-like ions. In this work, the 2³P_J fine structure splittings of helium and Li⁺ ion are calculated, including relativistic and QED corrections of order mα⁴, mα⁴(m/M), mα⁵, mα⁵(m/M), and Douglas-Kroll operators of mα⁶ and mα⁶(m/M), which provide an independent verification for the previous calculations performed by Drake [Can. J. Phys. 80 1195 (2002)] and by Pachucki and Yerokhin [Phys. Rev. A 79 062516 (2009); Phys. Rev. Lett. 104 070403 (2010); Can. J. Phys. 89 1139 (2011)]. The results of the three groups agree with each other.

关键词: fine structure, helium, Li⁺ ion, QED theory

Abstract:

Key words: fine structure, helium, Li⁺ ion, QED theory

中图分类号: (High-precision calculations for few-electron (or few-body) atomic systems)

31.15.ac

37.10.De (Atom cooling methods) 31.15.ap (Polarizabilities and other atomic and molecular properties) 31.15.bw (Coupled-cluster theory)

张佩佩, 钟振祥, 严宗朝, 史庭云. Precision calculation of fine structure in helium and Li⁺[J]. 中国物理B, 2015, 24(3): 33101-033101.

Zhang Pei-Pei (张佩佩), Zhong Zhen-Xiang (钟振祥), Yan Zong-Chao (严宗朝), Shi Ting-Yun (史庭云). Precision calculation of fine structure in helium and Li⁺[J]. Chin. Phys. B, 2015, 24(3): 33101-033101.

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Precision calculation of fine structure in helium and Li⁺

Precision calculation of fine structure in helium and Li⁺

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