Topological Density and Instantons on a Lattice

Details Topological Density and Instantons on a Lattice Topological Density and Instantons on a Lattice

1995-01-12

arxiv.org/abs/hep-lat/9501009v1

Nucl.Phys.Proc.Suppl. 42 (1995) 246-248

Physics

High Energy Physics

High Energy Physics - Lattice

3 Pages, submitted to Proceedings of XII International Symposium on Lattice Field Theory (Lattice 94, Bielefeld). uuencoded ta

Scientific paper

10.1016/0920-5632(95)00215-U

We present an update on the study of topological structure of QCD. Issues addressed include a comparison between the plaquette and the geometric methods of calculating the topological density. We show that the improved gauge action based on sqrt(3) blocking transformation suppresses the formation of topologically charged dislocations with low action. Using a cooling method we identify the instantons' location, estimate their size and density, and calculate the renormalization constant Z_Q for the plaquette method.

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