Strong-coupling study of the Gribov ambiguity in lattice Landau gauge

dc.contributor.author	Maas, Axel	en
dc.contributor.author	Pawlowski, Jan M.	en
dc.contributor.author	Spielman, Derek	en
dc.contributor.author	Sternbeck, Andre	en
dc.contributor.author	von Smekal, Lorenz Johann Maria	en
dc.contributor.school	School of Chemistry and Physics : Physics and Mathematical Physics	en
dc.date.issued	2010	en
dc.description.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.	en
dc.description.statementofresponsibility	Axel Maas, Jan M. Pawlowski, Daniel Spielmann, André Sternbeck and Lorenz von Smekal	en
dc.identifier.citation	European Physical Journal C, 2010; 68(1-2):183-195	en
dc.identifier.doi	10.1140/epjc/s10052-010-1306-6	en
dc.identifier.issn	1434-6044	en
dc.identifier.uri	http://hdl.handle.net/2440/61372
dc.language.iso	en	en
dc.publisher	Springer	en
dc.rights	© Springer-Verlag / Società Italiana di Fisica 2010	en
dc.title	Strong-coupling study of the Gribov ambiguity in lattice Landau gauge	en
dc.type	Journal article	en

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