title: Shot noise in chaotic cavities from action correlations.
abstract: We consider universal shot noise in ballistic chaotic cavities from a semiclassical point of view and show that it is due to action correlations within certain groups of classical trajectories. Using quantum graphs as a model system, we sum these trajectories analytically and find agreement with random-matrix theory. Unlike all action correlations which have been considered before, the correlations relevant for shot noise involve four trajectories and do not depend on the presence of any symmetry.
authors.affiliation: Max-Planck-Institut für Strömungsforschung, Göttingen, Germany. holger@chaos.gwdg.de
authors.forename: Holger
authors.initials: H
authors.lastname: Schanz
authors.forename: Mathias
authors.initials: M
authors.lastname: Puhlmann
authors.forename: Theo
authors.initials: T
authors.lastname: Geisel