Fermionic correlators and zero-momentum modes in quenched lattice QED

被引：7

作者：

Bogolubsky, IL ^{[1
]}

Mitrjushkin, VK

Müller-Preussker, M

Peter, P

Zverev, NV

机构：

[1] Joint Inst Nucl Res, Dubna, Russia

[2] Humboldt Univ, Inst Phys, D-1086 Berlin, Germany

来源：

PHYSICS LETTERS B | 2000年 / 476卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(00)00155-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

For the Lorentz gauge the influence of various Gribov gauge copies on the fermion propagator is investigated in quenched compact lattice QED. Within the Coulomb phase besides double Dirac sheets the zero-momentum modes of the gauge fields are shown to cause the propagator to deviate strongly from the perturbatively expected behaviour. The standard way to extract the fermion mass fails. The recently proposed zero-momentum Lorentz gauge is demonstrated to cure the problem. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

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页码：448 / 454

页数：7

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