Accurate vacuum-polarization calculations

Journal Article · Fri Oct 01 04:00:00 EDT 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.48.2772· OSTI ID:6138826

Persson, H; Lindgren, I; Salomonson, S; Sunnergren, P ^[1]

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1. Department of Physics, Chalmers University of Technology and the University of Gothenburg, S-41296 Goeteborg (Sweden)

A numerical scheme for evaluating the part of the one-photon vacuum-polarization effect not accounted for by the Uehling potential (the Wichmann-Kroll effect) is presented. The method can be used with an arbitary atomic model potential describing the bound electrons. Benchmark results for this effect are presented for hydrogenlike levels using a uniform nuclear-charge distribution. The effect of direct and exchange electron screening on the vacuum polarization are discussed in connection with the accurately measured 2[ital p][sub 1/2-]2[ital s][sub 1/2] transition in lithiumlike uranium.

• OSTI ID: 6138826
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 48:4; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664100* -- Theory of Electronic Structure of Atoms & Molecules-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
BOUND STATE
CHARGED PARTICLES
ELECTRODYNAMICS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY
EXCHANGE INTERACTIONS
FERMIONS
FIELD THEORIES
INTERACTIONS
IONS
LEPTONS
NUMERICAL SOLUTION
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
SELF-ENERGY
URANIUM IONS
VACUUM POLARIZATION