Solution of the Dirac Coulomb equation for helium-like ions in the Poet-Temkin model
文献类型：期刊论文
| 作者 | Tang, Li-Yan1,2; Tang, Yong-Bo1,3; Shi, Ting-Yun1,4; Mitroy, J.2 |
| 刊名 | JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2013-10-07 |
| 卷号 | 139期号:13 |
| 英文摘要 | The Dirac-Coulomb equation for the helium atom is studied under the restrictions of the Poet-Temkin model which replaces the 1/r(12) interaction by the simplified 1/r(>) form. The effective reduction in the dimensionality made it possible to obtain binding energies for the singlet and triplet states in this model problem with a relative precision from 10 (8) to 10 (10). The energies for the singlet state were consistent with a previous configuration interaction calculation [H. Tatewaki and Y. Watanabe, Chem. Phys. 389, 58 (2011)]. Manifestations of Brown-Ravenhall disease were noted at higher values of nuclear charge and ultimately limited the accuracy of the Poet-Temkin model energy. The energies from a no-pair configuration interaction (CI) calculation (the negative-energy states for the appropriate hydrogen-like ion were excluded from the CI expansion) were found to be different from the unrestricted B-spline calculation. (C) 2013 AIP Publishing LLC. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Atomic, Molecular & Chemical |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | ELECTRON-HYDROGEN SCATTERING ; MANY-BODY PROBLEM ; S-WAVE MODEL ; CONFIGURATION-INTERACTION CALCULATIONS ; NEGATIVE-ENERGY STATES ; GROUND-STATE ; ISOELECTRONIC SEQUENCE ; ATOMIC-STRUCTURE ; IONIZATION ; CONVERGENCE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000325503300012 |
| 公开日期 | 2015-07-14 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/927]  |
| 专题 | 武汉物理与数学研究所_理论与交叉研究部 |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Charles Darwin Univ, Sch Engn, Ctr Antimatter Matter Studies, Darwin, NT 0909, Australia 3.Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China 4.Chinese Acad Sci, Ctr Cold Atom Phys, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Li-Yan,Tang, Yong-Bo,Shi, Ting-Yun,et al. Solution of the Dirac Coulomb equation for helium-like ions in the Poet-Temkin model[J]. JOURNAL OF CHEMICAL PHYSICS,2013,139(13). |
| APA | Tang, Li-Yan,Tang, Yong-Bo,Shi, Ting-Yun,&Mitroy, J..(2013).Solution of the Dirac Coulomb equation for helium-like ions in the Poet-Temkin model.JOURNAL OF CHEMICAL PHYSICS,139(13). |
| MLA | Tang, Li-Yan,et al."Solution of the Dirac Coulomb equation for helium-like ions in the Poet-Temkin model".JOURNAL OF CHEMICAL PHYSICS 139.13(2013). |
入库方式： OAI收割
来源：武汉物理与数学研究所
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