Topologically invariant transformation for lattice fermions

Details Topologically invariant transformation for lattice fermions Topologically invariant transformation for lattice fermions

1999-12-02

arxiv.org/abs/hep-lat/9912005v4

Phys.Lett.B488:31-38,2000

Physics

High Energy Physics

High Energy Physics - Lattice

12 pages, LaTeX, 1 EPS figure, improved presentation

Scientific paper

10.1016/S0370-2693(00)00811-X

A transformation is devised to convert any lattice Dirac fermion operator into a Ginsparg-Wilson Dirac fermion operator. For the standard Wilson-Dirac lattice fermion operator, the transformed new operator is local, free of O(a) lattice artifacts, has correct axial anomaly in the trivial sector, and is not plagued by the notorious problems (e.g., additive mass renormalization) which occur to the standard Wilson-Dirac lattice fermion operator.

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