Cascade approach to current fluctuations in a chaotic cavity

Details Cascade approach to current fluctuations in a chaotic cavity Cascade approach to current fluctuations in a chaotic cavity

2002-08-07

arxiv.org/abs/cond-mat/0208147v1

Phys. Rev. B 66, 195318 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 4 figures

Scientific paper

10.1103/PhysRevB.66.195318

We propose a simple semiclassical method for calculating higher-order cumulants of current in multichannel mesoscopic conductors. To demonstrate its efficiency, we calculate the third and fourth cumulants of current for a chaotic cavity with multichannel leads of arbitrary transparency and compare the results with ensemble-averaged quantum-mechanical quantities. We also explain the discrepancy between the quantum-mechanical results and previous semiclassical calculations.

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