ar X iv : h ep - l at / 9 60 81 31 v 1 2 3 A ug 1 99 6 A New Lattice Action For Studying Topological Charge
نویسندگان
چکیده
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) σ-model in two dimensions.
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تاریخ انتشار 1996