Chiral fermions and a multigrid algorithm

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Abstract
Lattice regularization of chiral fermions is an important development of the theory of elementary particles. Nonetheless, brute force computer simulations are very expensive, if not prohibitive. In this Brief Report I exploit the noninteracting character of the lattice theory in flavor space and propose a multigrid approach for the simulation of the theory. Already a two-grid algorithm saves an order of magnitude of computer time for fermion propagator calculations.
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