Linear covariant gauges on the lattice

Autor(es)

Cucchieri, Attilio ^[1] ; Maas, Axel ^{[1, 2, 3]} ; Mendes, Tereza ^{[1, 4]}

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil

^[2] Slovak Acad Sci, Inst Phys, Dept Complex Phys Syst, SK-84511 Bratislava - Slovakia

^[3] Karl Franzens Univ Graz, Inst Phys, Dept Theoret Phys, A-8010 Graz - Austria

^[4] DESY, D-15738 Zeuthen - Germany

• Tipo de documento: Artigo Científico
• Fonte: COMPUTER PHYSICS COMMUNICATIONS; v. 180, n. 2, p. 215-225, FEB 2009.
• Citações Web of Science: 8

Resumo

Linear covariant gauges, such as Feynman gauge, are very useful in perturbative calculations. Their non-perturbative formulation is, however, highly non-trivial. In particular, it is a challenge to define linear covariant gauges on a lattice. We consider a class of gauges in lattice gauge theory that coincides with the perturbative definition of linear covariant gauges in the formal continuum limit. The corresponding gauge-fixing procedure is described and analyzed in detail, with an application to the pure SU(2) case. In addition, results for the gluon propagator in the two-dimensional case are given. (C) 2008 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 00/05047-5 - Simulações numéricas de larga escala em teorias de Gauge na rede e mecânica estatística
• Beneficiário: Attilio Cucchieri
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 05/59919-7 - Computacao de alto desempenho para o estudo de fenomenos criticos.
• Beneficiário: Tereza Cristina da Rocha Mendes
• Modalidade de apoio: Auxílio à Pesquisa - Regular