Cascade approach to current fluctuations in a chaotic cavity
arXiv:cond-mat/0208147 · doi:10.1103/PhysRevB.66.195318
Abstract
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.
7 pages, 4 figures
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