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Type: Journal article
Title: Strong-coupling study of the Gribov ambiguity in lattice Landau gauge
Author: Maas, Axel
Pawlowski, Jan M.
Spielman, Derek
Sternbeck, Andre
von Smekal, Lorenz Johann Maria
Citation: European Physical Journal C, 2010; 68(1-2):183-195
Publisher: Springer
Issue Date: 2010
ISSN: 1434-6044
School/Discipline: School of Chemistry and Physics : Physics and Mathematical Physics
Statement of
Axel Maas, Jan M. Pawlowski, Daniel Spielmann, André Sternbeck and Lorenz von Smekal
Abstract: We study the strong-coupling limit β = 0 of lattice SU(2) Landau gauge Yang–Mills theory. In this limit the lattice spacing is infinite, and thus all momenta in physical units are infinitesimally small. Hence, the infrared behaviour can be assessed at sufficiently large lattice momenta. Our results show that at the lattice volumes used here, the Gribov ambiguity has an enormous effect on the ghost propagator in all dimensions. This underlines the severity of the Gribov problem and calls for refined studies also at finite β. In turn, the gluon propagator only mildly depends on the Gribov ambiguity.
Rights: © Springer-Verlag / Società Italiana di Fisica 2010
DOI: 10.1140/epjc/s10052-010-1306-6
Appears in Collections:Physics publications

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