Properties of near-zero modes and chiral symmetry breaking

被引：44
作者：
Gattringer, C [1 ]
Göckeler, M [1 ]
Rakow, PEL [1 ]
Schaefer, S [1 ]
Schäfer, A [1 ]
机构：
[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany
来源：
NUCLEAR PHYSICS B | 2001年 / 617卷 / 1-3期
关键词：
lattice QCD; instantons; chiral symmetry breaking;
D O I：
10.1016/S0550-3213(01)00478-3
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 study localization and chirality properties of eigenvectors of the lattice Dirac operator. In particular, we focus on the dependence of our observables on the size of the corresponding eigenvalue, which allows us to study the transition of a near-zero mode into a bulk mode. We analyze ensembles of quenched SU(3) configurations using a Dirac operator which is a systematic expansion in path length of a solution of the Ginsparg-Wilson equation. Our results support the interpretation of the excitations relevant for chiral symmetry breaking as interacting instantons and anti-instantons. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：101 / 116
页数：16
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