Instantons and fixed-point actions in SU(2) gauge theory

被引：44

作者：

DeGrand, T

Hasenfratz, A

Zhu, DC

机构：

[1] Department of Physics, University of Colorado, Boulder

来源：

NUCLEAR PHYSICS B | 1996年 / 475卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

lattice gauge theory; topology; instantons;

D O I：

10.1016/0550-3213(96)00301-X

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We describe the properties of instantons in lattice gauge theory when the action is a fixed-point action of some renormalization group transformation, We present a theoretically consistent method for measuring topological charge using an inverse renormalization group transformation. We show that, using a fixed-point action, the action of smooth configurations with non-ten, topological charge is greater than or equal to its continuum value 8 pi(2)/g(2).

引用

收藏

页码：321 / 336

页数：16

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