DELTA EXPANSION APPLIED TO STRONG-COUPLING Z(2), U(1), AND SU(2) GAUGE-THEORY ON THE LATTICE IN 4 DIMENSIONS

被引：14

作者：

BUCKLEY, IRC

JONES, HF

机构：

[1] Physics Department, Imperial College

来源：

PHYSICAL REVIEW D | 1992年 / 45卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.45.2073

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We generalize to four dimensions the linear delta-expansion applied to gauge theory on the lattice, with Z(2), U(1), and SU(2) as the gauge groups and an unperturbed action appropriate to the strong-coupling regime. The calculation is carried to fourth order in delta, using the machinery of character expansions. The expansion is optimized in a bid to improve upon existing strong-coupling methods and our results are compared against results from these and from Monte Carlo calculations.

引用

页码：2073 / 2080

页数：8

共 14 条

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