LARGE N-LATTICE QED

被引：15

作者：

AZCOITI, V ^{[1
]}

DICARLO, G ^{[1
]}

GRILLO, AF ^{[1
]}

机构：

[1] IST NAZL FIS NUCL,LAB NAZL FRASCATI,FRASCATI,ITALY

来源：

PHYSICS LETTERS B | 1993年 / 305卷 / 03期

关键词：

D O I：

10.1016/0370-2693(93)90118-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the beta, N critical behaviour of non-compact QED with N species of light fermions, using a method we have proposed for unquenched simulations. We find that there exist two phase transition lines: one, second order, and the other, first order, that approaches asymptotically the beta = 0 axis. These two lines have different physical origin, the second one being entirely due to fermion effects. We discuss the effect of the approximation used, in terms of an expansion of the effective action in powers of N, and conclude that the general features should not be affected by this approximation.

引用

页码：275 / 280

页数：6

共 13 条

[1] NEW PROPOSAL FOR INCLUDING DYNAMIC FERMIONS IN LATTICE GAUGE-THEORIES - THE COMPACT-QED CASE [J].