出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:We measure the low lying eigenmodes of an overlap Dirac operator on 2–flavor staggered configurations.
By comparing the eigenmode distribution to the predictions of Random Matrix Theory
we test to what accuracy staggered configurations describe continuum QCD. The agreement between
the numerical data and RMT implies that at our quark mass values the lattice artifacts of the
staggered configurations are comparable to overlap configurations. We identify the overlap valence
mass that best matches the staggered sea quarks and predict the value of the infinite volume
2–flavor chiral condensate.