出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：In order to elucidate the vacuum structure of the Aoki phase, we carried out a numerical investigation of QCD with two flavours ofWilson fermions, within the p.d.f. framework and in the absence of external sources. The simulations performed at V = 44 suggest a rich vacuum structure, where the observable iy¯ g5y is allowed to take non-zero values of the same order of magnitude than the order parameter of the Aoki phase iy¯ g5t3y. However, the simulation at higher volumes V = 64 suffers from large statistical errors.
