Critical behavior of (2+1)-dimensional QED: 1/Nf corrections in the Landau gauge

The dynamical generation of a fermion mass is studied within (2+1)-dimensional QED with N four-component fermions in the leading and next-to-leading orders of the 1/N expansion. The analysis is carried out in the Landau gauge, which is supposed to insure the gauge independence of the critical fermio...

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Bibliographic Details
Published in:Physical review. D 2016-09, Vol.94 (5)
Main Authors: Kotikov, A V, Shilin, V I, Teber, S
Format: Article
Language:English
Subjects:
Fermions
Online Access:Get full text
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Summary:The dynamical generation of a fermion mass is studied within (2+1)-dimensional QED with N four-component fermions in the leading and next-to-leading orders of the 1/N expansion. The analysis is carried out in the Landau gauge, which is supposed to insure the gauge independence of the critical fermion flavor number, Nc. It is found that the dynamical fermion mass appears for N
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.94.056009