Improved superposition schemes for approximate multi-caloron configurations

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dc.creatorGerhold, Philipp
dc.creatorIlgenfritz, Ernst-Michael
dc.creatorMüller-Preussker, Michael
dc.date2006-10-31
dc.date2007-04-16
dc.date.accessioned2026-07-07T10:42:09Z
dc.date.available2026-07-07T10:42:09Z
dc.descriptionTwo improved superposition schemes for the construction of approximate multi-caloron-anticaloron configurations, using exact single (anti)caloron gauge fields as underlying building blocks, are introduced in this paper. The first improvement deals with possible monopole-Dirac string interactions between different calorons with non-trivial holonomy. The second one, based on the ADHM formalism, improves the (anti-)selfduality in the case of small caloron separations. It conforms with Shuryak's well-known ratio-ansatz when applied to instantons. Both superposition techniques provide a higher degree of (anti-)selfduality than the widely used sum-ansatz, which simply adds the (anti)caloron vector potentials in an appropriate gauge. Furthermore, the improved configurations (when discretized onto a lattice) are characterized by a higher stability when they are exposed to lattice cooling techniques.
dc.descriptionNew version accepted for publication in Nucl. Phys. B. Text partly shortened, changes in the introduction, new results added on the comparison with exact solutions
dc.identifierhttps://arxiv.org/abs/hep-ph/0610426
dc.identifierhttp://arxiv.org/abs/hep-ph/0610426
dc.identifierNucl.Phys.B774:268-297,2007
dc.identifierdoi:10.1016/j.nuclphysb.2007.04.003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181849
dc.subjectHigh Energy Physics - Phenomenology
dc.titleImproved superposition schemes for approximate multi-caloron configurations
dc.typetext

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