Electron-number statistics and shot-noise suppression by Coulomb correlation in nondegenerate ballistic transport
O. M. Bulashenko, J. Mateos, D. Pardo, T. Gonzalez, L. Reggiani, J. M. Rubi
Abstract
Within a Monte Carlo simulation we investigate the statistical properties of an electron flow injected with a Poissonian distribution and transmitted under ballistic regime in the presence of long-range Coulomb interaction. Electrons are shown to exhibit a motional squeezing which tends to space them more regularly rather than strictly at random, and evidence a sub-Poissonian statistics with a substantially reduced Fano factor Fn 1. The temporal (anti)correlation among carriers is demonstrated to be a collective effect which persists over the transit of several successive electrons and results in a considerable (more than one order of magnitude) shot noise suppression.
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