CHIRAL-SYMMETRY BREAKING IN 3-DIMENSIONAL QED WITH 4-FERMI INTERACTIONS AT FINITE-TEMPERATURE

被引：1
|
作者：
KANG, SK
KIM, JK
机构：
[1] Department of Physics, Korea Advanced Institute of Science and Technology, Yusung-ku, Taejon, 373-1, Kusung-dong
来源：
PHYSICAL REVIEW D | 1993年 / 48卷 / 02期
关键词：
D O I：
10.1103/PhysRevD.48.915
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Using the 1/N expansion, we study dynamical chiral symmetry breaking in three-dimensional QED with four-Fermi interactions at finite temperature. We numerically solve the temperature-dependent Schwinger-Dyson equation for the fermion self-energy and obtain the solutions which depend on momentum as well as temperature. We find a critical temperature above which chiral symmetry is restored. The results show the existence of a critical N which depends on temperature. The phase diagram for dynamical mass generation is shown in the N-g plane.
引用
收藏
页码：915 / 920
页数：6
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