Lattice Landau gauge with stochastic quantisation

被引：14

作者：

Pawlowski, Jan M. ^{[1
,2
]}

Spielmann, Daniel ^{[1
,2
]}

Stamatescu, Ion-Olimpiu ^{[1
,3
]}

机构：

[1] Heidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, Germany

[2] GSI Helmholtzzentrum Schwerionenforsch GmbH, Extreme Matter Inst EMMI, D-64291 Darmstadt, Germany

[3] FEST, D-69118 Heidelberg, Germany

来源：

NUCLEAR PHYSICS B | 2010年 / 830卷 / 1-2期

关键词：

INFRARED BEHAVIOR; GHOST PROPAGATORS; GRIBOV COPIES; GLUON; CONFINEMENT; QCD; RENORMALIZATION; ALGORITHMS; EXPONENTS;

D O I：

10.1016/j.nuclphysb.2009.12.036

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 calculate Landau gauge ghost and gluon propagators in pure SU(2) lattice gauge theory in two, three and four dimensions. The gauge fixing method we use, sc. stochastic quantisation, serves as a viable alternative approach to standard 1,gauge fixing algorithms. We also investigate the spectrum of the Faddeev-Popov operator. At insufficiently accurate gauge fixing. we find evidence that stochastic quantisation samples configurations close to the Grihov horizon. standard gauge fixing does so only at specific parameters: otherwise, there is a clear difference. However, this difference disappears if the gauge is fixed to sufficient accuracy. In this Case, We confirm previous lattice result, for the gluon and ghost propagator in two, three and four dimensions. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：291 / 314

页数：24

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