An anisotropic preconditioning for the Wilson fermion matrix on the lattice

Abstract

A preconditioning for the Wilson fermion matrix on the lattice is defined which is particularly suited to the case when the temporal lattice spacing is much smaller than the spatial one. Details on the implementation of the scheme are given. The method is tested in numerical studies of QCD on anisotropic lattices.

Comments: 17 Pages, 3 embedded figures