用Debye和电离层模型研究等离子体屏蔽对多电荷铝离子电子结构的影响
Plasma-screening effects on the electronic structure of multiply charged Al ions using Debye and ionsphere models
摘要：
分析了等离子体中铝原子及其离子在弱耦合和强耦合两种情况下的原子结构。在这些原子系统中的等离子体屏蔽效应占使用德拜和离子球（IS）的弱耦合和强耦合等离子体的潜力，分别。在德拜模型下，考虑电子-电子相互作用势，研究了球形和非球形等离子体屏蔽效应。用相对论耦合团簇（RCC）方法描述了上述原子系统中的相对论效应和电子关联效应。给出了等离子体中Al离子的电离势和激发能的变化规律。结果表明，考虑屏蔽效应后，原子系统具有更好的稳定性。在强耦合等离子体环境中，高离化Al离子在相同和不同主量子数的态之间的跃迁谱线分别出现蓝移和红移.从德拜和IS模型得到的结果之间的比较也进行了考虑类似的等离子体条件。
英文摘要：
We analyze atomic structures of plasma embedded aluminum (Al) atom and its ions in the weakly and strongly coupling regimes. The plasma screening effects in these atomic systems are accounted for using the Debye and ion sphere (IS) potentials for the weakly coupling and strongly coupling plasmas, respectively. Within the Debye model, special attention is given to investigate the spherical and non-spherical plasma-screening effects considering in the electron-electron interaction potential. The relativistic coupled-cluster (RCC) method has been employed to describe the relativistic and electronic correlation effects in the above atomic systems. The variation in the ionization potentials (IPs) and excitation energies (EEs) of the plasma embedded Al ions are presented. It is found that the atomic systems exhibit more stability when the exact screening effects are taken into account. It is also showed that in the presence of strongly coupled plasma environment, the highly ionized Al ions show blue and red shifts in the spectral lines of the transitions between the states with same and different principal quantum numbers, respectively. Comparison among the results obtained from the Debye and IS models are also carried out considering similar plasma conditions.
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