Contribution of the screened self-energy to the Lamb shift of quasidegenerate states

Abstract

Expressions for the effective Quantum Electrodynamics (QED) Hamiltonian due to self-energy screening (self-energy correction to the electron-electron interaction) are presented. We use the method of the two-time Green's function, which handles quasidegenerate atomic states. From these expression one can evaluate energy corrections to, e.g., 1s2p 3P1 and 1s2p 1P1 levels in helium and two-electron ions, to all orders in Zα

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References in corpus (1)

• Coordinate-space approach to the bound-electron self-energy: Self-Energy screening calculation

Cited by in corpus (11)

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• Many-body perturbation procedure for energy-dependent perturbation: Merging many-body perturbation theory with QED
• Ab initio calculations of energy levels in Be-like xenon: strong interference between electron-correlation and QED effects
• Calculation of quasi-degenerate energy levels of two-electron ions
• The Rayleigh-Schrödinger perturbation series of quasi-degenerate systems
• QED theory of the normal mass shift in few-electron atoms
• Many-body theory of degenerate systems
• Atomic Energy Levels with QED and Contribution of the Screened Self-Energy