31 citations · 39 across the 5 of their papers we have counts for
5 papers
QED effects in scattering processes involving atomic bound states: Radiative recombination
Ingvar Lindgren, Sten Salomonson, Johan Holmberg
The standard S-matrix formulation cannot generally be used in the treatment of atomic scattering processes, involving bound-state QED effects, due to the special type of singularit…
Energy-dependent perturbation theory: Possibility for improved tests of quantum-electrodynamics
Ingvar Lindgren, Sten Salomonson, Johan Holmberg
Measurements of energy separations in highly charged ions can in many cases nowadays be performed with very high accuracy, an accuracy that sometimes cannot be matched by the corre…
Stabilized Finite Element Method for the Radial Dirac Equation
Hasan Almanasreh, Sten Salomonson, Nils Svanstedt
A challenging difficulty in solving the radial Dirac eigenvalue problem numerically is the presence of spurious (unphysical) eigenvalues among the correct ones that are neither rel…
Many-body perturbation procedure for energy-dependent perturbation: Merging many-body perturbation theory with QED
Ingvar Lindgren, Sten Salomonson, Daniel Hedendahl
A formalism for energy-dependent many-body perturbation theory (MBPT), previously indicated in our recent review articles (Lindgren et al., Phys.Rep. 389,161(2004), Can.J.Phys. 83,…
The locality hypothesis in density-functional theory: An exact theorem
Ingvar Lindgren, Sten Salomonson
The locality hypothesis in density-functional theory (DFT) states that the functional derivative of the Hohenberg-Kohn universal functional can be expressed as a local multiplicati…