The perfect action for non-degenerate staggered fermions
High Energy Physics - Lattice
2009-10-28 v2
Abstract
The perfect action of free staggered fermions is calculated by blocking from the continuum for degenerate and non-degenerate flavor masses. The symmetry structure, connecting flavor transformations and translations, is explained directly from the blocking scheme. It is convenient to use a modified Fourier transformation, respecting this connection, to treat the spin-flavor structure of the blockspins. The perfect action remains local in the non-degenerate case; it is explicitly calculated in two dimensions. I finally comment on the relation of the blocking scheme to the transition from Dirac-K\"ahler fermions to staggered fermions.
Keywords
Cite
@article{arxiv.hep-lat/9610029,
title = {The perfect action for non-degenerate staggered fermions},
author = {H. Dilger},
journal= {arXiv preprint arXiv:hep-lat/9610029},
year = {2009}
}
Comments
14 pages, Latex2e, 1 Latex figure, some minor changes and two references added