Chiral fermions and a multigrid algorithm - art. no. 017505

Lattice regularization of chiral fermions is an important development of th e theory of elementary particles. Nonetheless, brute force computer simulat ions are very expensive, if not prohibitive. In this Brief Report I exploit the noninteracting character of the lattice theory in flavor space and pro pose a multigrid approach for the simulation of the theory. Already a two-g rid algorithm saves an order of magnitude of computer time for fermion prop agator calculations.