出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The low energy eigenmodes of the continuum QCD Dirac operator are extended, but on the lattice,
due to discretization effects, the Dirac operator can have localized eigenmodes. These nonphysical
modes can introduce strong lattice artifacts for observables that are sensitive to chiral
symmetry, especially in mixed action simulations. We study how these lattice artifacts depend on
the parameters of the overlap operator and their effect on the distribution on the Dirac eigenmodes
and the topological susceptibility.
