| Application of coupled equation method on resonance processes of atomic lithium |
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| 作者姓名： | 房增科 马晓光 |
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| 作者单位： | Department of Physics Ludong University Yantai 264025，Department of Physics Ludong University，Yantai 264025 |
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| 基金项目： | This work was supported by the Natural Science Foundation of Yantai Normal University under Grant No.22270301 and L20072804. |
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| 摘 要： | The coupled equation method (CEM) has been applied to investigating the resonance structures for the ground state ls~22s~2S of the neutral lithium from the first threshold up to 64.5 eV.Resonance structures of atomic lithium due to single excitations of the ls and 2s electrons are studied by infinite-order calculations in detail.The effect of spin-orbit splitting is also included for some of the low-lying ls2snp(↑↓) resonance, and the influence of the interference between ls2s ~3Snp↓and ls2s ~1Snp↑states on the resonance structure has been confirmed theoretically.The results show that the presented technique can give the reasonable resonance structures very well in photoionization processes.
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