BRST COHOMOLOGY AND VACUUM-STRUCTURE OF 2-DIMENSIONAL CHROMODYNAMICS

被引：7

作者：

ABDALLA, E

ROTHE, KD

机构：

[1] Institut für Theoretische Physik, Universität Heidelberg, D-69120 Heidelberg

来源：

PHYSICS LETTERS B | 1995年 / 363卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(95)01193-T

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using a formulation of QCD(2) as a perturbed conformally invariant theory involving fermions, ghosts, as well as positive and negative level Wess-Zumino-Witten fields, we show that the BRST conditions become restrictions on the conformally invariant sector, as described by a G/G topological theory. By solving the corresponding cohomology problem we are led to a finite set of vacua. For G = SU(2) these vacua are two-fold degenerate.

引用

页码：85 / 92

页数：8

共 15 条

[1] INTEGRABILITY AND DUALITY IN 2-DIMENSIONAL QCD [J].