Modified lattice Landau gauge

dc.contributor.authorVon Smekal, L.
dc.contributor.authorMehta, D.
dc.contributor.authorSternbeck, A.
dc.contributor.authorWilliams, A.
dc.contributor.conferenceInternational Symposium on Lattice Field Theory (25th : 2007 : Regensburg, Germany)
dc.contributor.editorBali, G.
dc.contributor.editorBraun, V.
dc.contributor.editorGattringer, C.
dc.contributor.editorGockeler, M.
dc.contributor.editorSchafer, A.
dc.contributor.editorWeisz, P.
dc.contributor.editorWettig, T.
dc.date.issued2007
dc.descriptionAlso cited as: Lattice 2007, the XXV International Symposium on Lattice Field Theory, July 30 - August 4 2007, Regensburg, Germany / Gunnar Bali, Vladimir Braun, Christof Gattringer, Meinulf Göckeler, Andreas Schäfer, Peter Weisz, Tilo Wettig (eds.): 382/1-382/7.
dc.description.abstractWe propose a modified lattice Landau gauge based on stereographically projecting the link variables on the circle S¹→R for compact U(1) or the 3-sphere S³→R³ for SU(2) before imposing the Landau gauge condition. This can reduce the number of Gribov copies exponentially and solves the Gribov problem in compact U(1) where it is a lattice artifact. Applied to the maximal Abelian subgroup this might be just enough to avoid the perfect cancellation amongst the Gribov copies in a lattice BRST formulation for SU(N), and thus to avoid the Neuberger 0/0 problem. The continuum limit of the Landau gauge remains unchanged.
dc.description.statementofresponsibilityLorenz von Smekal, Dhagash Mehta, André Sternbeck and Anthony G. Williams
dc.description.urihttp://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=42
dc.identifier.citationProceedings of Science, 2007; PoS(LATTICE 2007): 382/1-382/7.
dc.identifier.issn1824-8039
dc.identifier.orcidWilliams, A. [0000-0002-1472-1592]
dc.identifier.urihttp://hdl.handle.net/2440/58360
dc.language.isoen
dc.publisherAcademic Press Inc
dc.publisher.place525 B St Ste 1900 San Diego CA 92101-4495
dc.rightsCopyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
dc.source.urihttp://pos.sissa.it/archive/conferences/042/382/LATTICE%202007_382.pdf
dc.titleModified lattice Landau gauge
dc.typeConference paper
pubs.publication-statusPublished

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