Oscillator strengths for 22S--n2P transitions of the lithium isoelectronic sequence from Z = 11 to 20 |
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Authors: | Hu Mu-Hong and Wang Zhi -Wen |
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Institution: | College of Physics $ &$ Information Engineering,
Henan
Normal University, Xinxiang 453007, China;College of Physics $ &$ Electronic Engineering, Xinyang
Normal University, Xinyang 464000, China; School of Physics and Electronic Technology, Liaoning
Normal
University, Dalian 116029, China |
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Abstract: | The dipole-length, dipole-velocity and dipole-acceleration
absorption oscillator strengths for the $1s^{2}2s$--$1s^{2}np$ (3 $
\le n \le $ 9) transitions of lithium-like systems from
$Z=11$ to 20 are calculated by using the energies and the
multiconfiguration interaction wave functions obtained from a full
core plus correlation method, in which relativistic and
mass-polarization effects on the energy, as the first-order
perturbation corrections, are included. The results of three forms
are in good agreement with each other, and closely agree with the
experimental data available in the literature. Based on the quantum
defects obtained with quantum defect theory (QDT), the discrete
oscillator strengths for the transitions from the ground state to
highly excited states $1s^{2}np$ ($n \ge 10$) and oscillator
strength densities corresponding to the bound-free transitions are
obtained for these ions. |
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Keywords: | lithium isoelectronic sequence oscillator strengths quantum defect |
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