GAUGE FIXING AMBIGUITY AND PHOTON PROPAGATORS IN COMPACT U(1) LATTICE GAUGE-THEORY

被引：52

作者：

NAKAMURA, A ^{[1
]}

PLEWNIA, M ^{[1
]}

机构：

[1] FREE UNIV BERLIN,INST THEORET PHYS,W-1000 BERLIN 33,GERMANY

来源：

PHYSICS LETTERS B | 1991年 / 255卷 / 02期

关键词：

D O I：

10.1016/0370-2693(91)90247-N

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the first numerical evidence of Gribov copies on a lattice. Photon propagators are numerically studied under the non-linear gauge condition partial-mu sin theta-mu = 0, where theta-mu-'s are gauge potentials defined on a lattice. It is shown that this standard lattice Landau gauge condition is not unique. In the Coulomb phase a correct free propagator is obtained only after removing this ambiguity.

引用

页码：274 / 278

页数：5

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