QED with a chemical potential: The case of a constant magnetic field

Alan Chodos, Kenneth Everding, David A. Owen

Research output: Contribution to journalArticlepeer-review

134 Scopus citations

Abstract

We generalize the proper-time expression for the electron propagator in a background constant electromagnetic field to include a nonvanishing density of electrons or positrons. In the case where only a magnetic field is present, we derive therefrom the effective Lagrangian, and show that it has the correct limits as either the magnetic field or the chemical potential is taken to zero. We extract the relativistic Landau levels from the poles in the propagator.

Original languageEnglish
Pages (from-to)2881-2892
Number of pages12
JournalPhysical review D
Volume42
Issue number8
DOIs
StatePublished - 1 Jan 1990

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