OPTIMIZATION IN THE EXTENDED VARIATIONAL APPROACH TO SU(2) GAUGE-THEORY ON THE LATTICE

被引:14
作者
AKEYO, JO
JONES, HF
机构
[1] Physics Department, Imperial College
来源
PHYSICAL REVIEW D | 1993年 / 47卷 / 04期
关键词
D O I
10.1103/PhysRevD.47.1668
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The linear delta expansion is applied to SU(2) gauge theory on the lattice, with a trial action based on single links. In contrast with previous calculations using this action, we use the principle of minimal sensitivity to determine the arbitrary parameter J which occurs in the interpolating action. We obtain a good fit to the Monte Carlo data on the weak-coupling side of the transition region: this can be combined with results using a different trial action to cover the entire range of beta. There is no sign that the procedure fails to converge.
引用
收藏
页码:1668 / 1671
页数:4
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