Approximate Ginsparg-Wilson fermions: a first test

被引：93

作者：

Gattringer, C

Hip, I

Lang, CB

机构：

[1] Graz Univ, Inst Theoret Phys, A-8010 Graz, Austria

[2] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

[3] Forschungszentrum Julich, NIC, John von Neumann Inst Comp, D-52425 Julich, Germany

来源：

NUCLEAR PHYSICS B | 2001年 / 597卷 / 1-3期

关键词：

lattice field theory; chiral fermions;

D O I：

10.1016/S0550-3213(00)00717-3

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 construct a 4-d lattice Dirac operator D using a systematical expansion in terms of simple operators on the lattice. The Ginsparg-Wilson equation turns into a system of coupled equations for the expansion coefficients of D. We solve these equations for a finite parametrization of D and find an approximate solution of the Ginsparg-Wilson equation. We analyze the spectral properties of our D for various ensembles of quenched SU(3) configurations. Improving the gauge field action considerably improves the spectral properties of our D. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：451 / 474

页数：24

共 51 条

[1] LATTICE QCD ON SMALL COMPUTERS [J].