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Title: Two-loop corrections to the potential of a pointlike charge in a superstrong magnetic field

The potential of the pointlike charge in a superstrong homogeneous magnetic field B Much-Greater-Than m{sub e}{sup 2}/e{sup 3} Almost-Equal-To 6 Multiplication-Sign 10{sup 15} G is considered. It is well known that Coulomb potential is significantly modified by taking into account vacuum polarization (calculated in one loop approximation). We consider electron selfenergy and correction to the vertex function at one loop, and show that these diagrams are not enhanced by magnetic field like eB.We calculate two-loop corrections to the vacuum polarization and find that these contributions are small.
Authors:
 [1]
  1. All-Russia Research Institute of Automatics (RRIA) (Russian Federation)
Publication Date:
OSTI Identifier:
22149295
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Atomic Nuclei; Journal Volume: 76; Journal Issue: 7; Other Information: Copyright (c) 2013 Pleiades Publishing, Ltd.; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; APPROXIMATIONS; COMPUTERIZED SIMULATION; CORRECTIONS; COULOMB FIELD; ELECTRONS; MAGNETIC FIELDS; VACUUM POLARIZATION; VERTEX FUNCTIONS