A New Lattice Action for Studying Topological Charge

Details A New Lattice Action for Studying Topological Charge A New Lattice Action for Studying Topological Charge

1996-08-23

arxiv.org/abs/hep-lat/9608131v1

Nucl.Phys.Proc.Suppl.53:564-566,1997

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 1 figure. Talk presented at LATTICE96(topology)

Scientific paper

10.1016/S0920-5632(96)00719-0

We review our recent proposal for a new lattice action for non-abelian gauge theories which reduces 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. We illustrate the improved behavior of a same-philosophy new lattice action in the $O(3)$ $\sigma$-model in two dimensions.

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