Perfect Lattice Actions for Staggered Fermions
W. Bietenholz, R. Brower, S. Chandrasekharan, U. -J. Wiese
Abstract
We construct a perfect lattice action for staggered fermions by blocking from the continuum. The locality, spectrum and pressure of such perfect staggered fermions are discussed. We also derive a consistent fixed point action for free gauge fields and discuss its locality as well as the resulting static quark-antiquark potential. This provides a basis for the construction of (classically) perfect lattice actions for QCD using staggered fermions.
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