Joint effect of Fermi and Coulomb correlations on shot-noise suppression in ballistic conductors

摘要

We present a Monte Carlo analysis of shot-noise suppression in mesoscopic ballistic conductors due to the joint action of Fermi and Coulomb correlations. Analytical expressions for Fermi suppression are used to validate the injection model used in the simulations. We find that Coulomb correlations maintain a relevant influence on the noise suppression even for strongly degenerate contacts. The carriers responsible for Coulomb suppression are those Boltzmann-like electrons at the tail of the Fermi distribution.