Full counting statistics of super-Poissonian shot noise in multi-level quantum dots

Details Full counting statistics of super-Poissonian shot noise in multi-level quantum dots Full counting statistics of super-Poissonian shot noise in multi-level quantum dots

2005-01-07

arxiv.org/abs/cond-mat/0501141v1

Phys. Rev. B 71, 161301(R) (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 1 figure, submitted to PRB

Scientific paper

10.1103/PhysRevB.71.161301

We examine the full counting statistics of quantum dots, which display super-Poissonian shot noise. By an extension to a generic situation with many excited states we identify the underlying transport process. The statistics is a sum of independent Poissonian processes of bunches of different sizes, which leads to the enhanced noise. The obtained results could be useful to determine transport characteristics in molecules and large quantum dots, since the noise (and higher cumulants) allow to identify the internal level structure, which is not visible in the average current.

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