1992
DOI: 10.1103/physreva.46.5478
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Many-body perturbation-theory formulas for energy levels of excited states of closed-shell atoms

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Cited by 36 publications
(59 citation statements)
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“…In Table 3, we present results for the zeroth-, first-, and second-order Coulomb contributions, E (0) , E (1) , and E (2) , and the first-and second-order Breit-Coulomb corrections, B (1) hf and B (2) . It should be noted that corrections for the frequency-dependent Breit interaction [23] are included in the first order only.…”
Section: Example: Energy Matrix For W 46+mentioning
confidence: 99%
See 1 more Smart Citation
“…In Table 3, we present results for the zeroth-, first-, and second-order Coulomb contributions, E (0) , E (1) , and E (2) , and the first-and second-order Breit-Coulomb corrections, B (1) hf and B (2) . It should be noted that corrections for the frequency-dependent Breit interaction [23] are included in the first order only.…”
Section: Example: Energy Matrix For W 46+mentioning
confidence: 99%
“…Relativistic many-body perturbation theory (RMBPT) was used recently to study atomic characteristics of particle-hole excitations of closed-shell ions [1][2][3][4][5][6]. In the first of these studies, energies [1][2][3] and oscillator strengths [4] in Ne-like ions were considered by Avgoustoglou et al Reduced matrix elements, oscillator strengths, and transition rates into the ground state for all allowed and forbidden electric-and magnetic-dipole and electric-and magnetic-quadrupole transitions (E1, M1, E2, M2) in Ne-like ions were presented by Safronova in ref.…”
Section: Introductionmentioning
confidence: 99%
“…[33,42] for calculation of radiative electric-dipole, electric-quadrupole, magneticdipole, and magnetic-quadrupole rates in Ne-and Ni-like systems. We will present here only the model space for Ni-like ions without repeating the detailed discussions given in [38,39], [40], [41], and [33,42]. The calculations are carried out using sets of basis Dirac-Hartree-Fock (DHF) orbitals.…”
Section: Methodsmentioning
confidence: 99%
“…[38,39] for calculation of energies of hole-particle states, in Ref. [40] for calculation of energies of particle-particle states, in Ref.…”
Section: Methodsmentioning
confidence: 99%
“…(3) and used in the order-by-order RayleighSchrödinger perturbation expansion of the atomic state energies E and other properties such as oscillator strengths. An example of the reduction of the perturbation expansion to MBPT formulas using Feynman diagrams and second-quantization method is given in Avgoustoglou et al (1992) for closed-shell atoms. For processes involving the continuum, the continuum atomic state function Ψ(ε) for the (N +1)-electron system has to be evaluated,…”
Section: Fig 6 Fit To a 3×10mentioning
confidence: 99%