Noise suppression due to long-range Coulomb interaction: Crossover between diffusive and ballistic transport regimes

T. Gonzalez, O. M. Bulashenko, J. Mateos, D. Pardo, L. Reggiani, J. M. Rubi

Published 1997-03-12, updated 1997-10-06Version 2

We present a Monte Carlo analysis of shot-noise suppression due to long-range Coulomb interaction in semiconductor samples under a crossover between diffusive and ballistic transport regimes. By varying the mean time between collisions we find that the strong suppression observed under the ballistic regime persists under quasi-ballistic conditions, before being washed out when a complete diffusive regime is reached.