出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Lattice QCD simulations with staggered fermions rely on the “fourth-root trick.” The validity of
this trick has been proved for free staggered fermions using renormalization-group block transformations.
I review the elements of the construction and discuss how it might be generalized to
the interacting case.
