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Shot noise in chaotic cavities from action correlations
Holger Schanz1, Mathias Puhlmann, Theo Geisel
1Max-Planck-Institut für Strömungsforschung, Göttingen, Germany. holger@chaos.gwdg.de
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.
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