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A new lattice action for studying topological charge

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dc.contributor.author	Hernández Gamazo, Pilar
dc.contributor.author	Sundrum, Raman
dc.date.accessioned	2015-04-23T12:23:14Z
dc.date.available	2015-04-23T12:23:14Z
dc.date.issued	1996
dc.identifier.uri	http://hdl.handle.net/10550/43336
dc.description.abstract	We propose a new lattice action for non-abelian gauge theories, which will reduce short-range lattice artifacts in the computation of the topological susceptibility. The standard Wilson action is replaced by the Wilson action of a gauge covariant interpolation of the original fields to a finer lattice. If the latter is fine enough, the action of all configurations with non-zero topological charge will satisfy the necessary bound for the scaling of the topological susceptibility. As a simpler example we consider the O(3) σ-model in two dimensions, where a numerical analysis of discretized continuum instantons indicates that a finer lattice with half the lattice spacing of the original is enough to satisfy the continuum bound.
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 1996, vol. 385, num. 1-4, p. 254-257
dc.source	Hernández Gamazo, Pilar Sundrum, Raman 1996 A new lattice action for studying topological charge Physics Letters B 385 1-4 254 257
dc.subject	Física
dc.title	A new lattice action for studying topological charge
dc.type	journal article	es_ES
dc.date.updated	2015-04-23T12:23:14Z
dc.identifier.doi	http://dx.doi.org/10.1016/0370-2693(96)00838-6
dc.identifier.idgrec	081418
dc.rights.accessRights	open access	es_ES