RENORMALIZATION-GROUP AND TRIVIALITY IN NONCOMPACT LATTICE QED WITH LIGHT FERMIONS

被引：13

作者：

AZCOITI, V

DICARLO, G

GRILLO, AF

机构：

来源：

MODERN PHYSICS LETTERS A | 1992年 / 7卷 / 38期

关键词：

D O I：

10.1142/S0217732392002974

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In the framework of noncompact lattice QED with light fermions, we derive the functional dependence of the average energy per plaquette on the bare parameters using block-spin Renormalization Group arguments and assuming that the renormalized coupling vanishes. Our numerical results for this quantity in 8(4) and 10(4) lattices show evidence for triviality in the weak coupling phase and point to a nonvanishing value for the renormalized coupling constant in the strong coupling phase.

引用

页码：3561 / 3568

页数：8