Highly improved naive and staggered fermions

摘要

Naive and staggered fermion actions (which have very similar properties) havenumerous advantages over actions based on four-component Wilson fermions. They have an exact chiral symmetry, allowing a simpler approach to the light-quark limit. They require only even dimension correction operators, simplifying the improvement program. Staggered fermion propagators can be calculated much more rapidly than Wilson fermion propagators.