Electron-number statistics and shot-noise suppression by Coulomb correlation in nondegenerate ballistic transport

Details Electron-number statistics and shot-noise suppression by Coulomb correlation in nondegenerate ballistic transport Electron-number statistics and shot-noise suppression by Coulomb correlation in nondegenerate ballistic transport

1997-10-19

arxiv.org/abs/cond-mat/9710194v1

Phys. Rev. B 57 (1998) 1366-1369

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

RevTex, 4 pages, 5 figures, to appear in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.57.1366

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 $F_n\ll 1$. 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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