出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We summarize different uses of the eigenmodes of the Neuberger overlap operator for the
analysis of the QCD vacuum, here applied to quenched configurations simulated by means of the
Lüscher-Weisz action. We describe the localization and chiral properties of the lowest modes. The
overlap-based topological charge density (with and without UV-filtering) is compared with the results
of UV-filtering for the field strength tensor. The latter allows to identify domains of good
(anti-)selfduality. All these techniques together lead to a dual picture of the vacuum, unifying the
infrared instanton picture with the presence of singular defects co-existent at different scales.
