On the critical behavior of (2 + 1)-dimensional QED

被引：0
|
作者：
A. V. Kotikov
机构：
[1] JINR,Bogoliubov Laboratory of Theoretical Physics
来源：
Physics of Atomic Nuclei | 2012年 / 75卷
关键词：
Atomic Nucleus; Chiral Symmetry; Critical Behavior; Fermion Mass; Lead Order;
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学科分类号：
摘要：
It is shown the analysis [1] for QED in (2 + 1) dimensions with N four-component fermions in the leading and next-to-leading orders of the 1/N expansion. As it was demonstrated in [1], the range of the admissible values N, where the dynamical fermion mass exists, decreases strongly with the increasing of the gauge charge. So, in Landau gauge the dynamical chiral symmetry breaking appears forN < 3.78, that is very close to the results of the leading order and in Feynman gauge dynamical mass is completely absent.
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页码：890 / 892
页数：2
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