Strong-coupling study of the Gribov ambiguity in lattice Landau gauge
Date
2010
Authors
Maas, Axel
Pawlowski, Jan M.
Spielman, Derek
Sternbeck, Andre
von Smekal, Lorenz Johann Maria
Editors
Advisors
Journal Title
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Volume Title
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Journal article
Citation
European Physical Journal C, 2010; 68(1-2):183-195
Statement of Responsibility
Axel Maas, Jan M. Pawlowski, Daniel Spielmann, André Sternbeck and Lorenz von Smekal
Conference Name
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.
School/Discipline
School of Chemistry and Physics : Physics and Mathematical Physics
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© Springer-Verlag / Società Italiana di Fisica 2010