Shot noise 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.

4 pages, 2 figures (a mistake in version 1 has been corrected)

References in corpus (1)

• Classical basis for quantum spectral fluctuations in hyperbolic systems

Cited by in corpus (3)

• Periodic-Orbit Theory of Universality in Quantum Chaos
• Quantum decay of an open chaotic system: a semiclassical approach
• Full counting statistics of a chaotic cavity with asymmetric leads