出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:Lattice fermions in a fluctuating gauge field can show localization, much like electrons in a disordered
potential. We study the spectrum of localized and extended states of supercriticalWilson
fermions in gauge ensembles generated with plaquette and improved actions. When the Wilson
fermion operator is used to construct the overlap kernel, the mobility edge, that is the boundary
between the localized and extended states, determines the range of the kernel.