Shot noise from action correlations

Details Shot noise from action correlations Shot noise from action correlations

2003-04-11

arxiv.org/abs/cond-mat/0304265v2

Phys. Rev. Lett. 91, 134101 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

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

Scientific paper

10.1103/PhysRevLett.91.134101

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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