Vacuum stability for Dirac fermions in three dimensions
- 15 June 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 55 (12) , 7985-7988
- https://doi.org/10.1103/physrevd.55.7985
Abstract
I investigate three-dimensional Abelian and non-Abelian gauge theories interacting with Dirac fermions. Using a variational method I evaluate the vacuum energy density in the one-loop approximation. It turns out that the states with a constant magnetic condensate lie below the perturbative ground state only in the case of three-dimensional quantum electrodynamics with massive fermions.Keywords
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