title: Universal spectral statistics in quantum graphs.
abstract: We prove that the spectrum of an individual chaotic quantum graph shows universal spectral correlations, as predicted by random-matrix theory. The stability of these correlations with regard to nonuniversal corrections is analyzed in terms of the linear operator governing the classical dynamics on the graph.
authors.affiliation: Institut für Theoretische Physik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany. gnutz@physik.fu-berlin.de
authors.forename: Sven
authors.initials: S
authors.lastname: Gnutzmann
authors.forename: Alexander
authors.initials: A
authors.lastname: Altland