出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：I explore the origins of the unphysical predictions from rooted staggered fermion algorithms.
Before rooting, the exact chiral symmetry of staggered fermions is a flavored symmetry among the
four "tastes." The rooting procedure averages over tastes of different chiralities. This averaging
forbids the appearance of the correct ’t Hooft vertex for the target theory.
