Coulomb drag in phase-coherent mesoscopic structures - Numerical study of disordered 1D-wires

Niels Asger Mortensen, Karsten Flensberg, Antti-Pekka Jauho

Published 2001-08-13Version 1

We study Coulomb drag between two parallel disordered mesoscopic 1D-wires. By numerical ensemble averaging we calculate the statistical properties of the transconductance G_21 including its distribution. For wires with mutually uncorrelated disorder potentials we find that the mean value is finite, but with comparable fluctuations so that sign-reversal is possible. For identical disorder potentials the mean value and the fluctuations nare enhanced compared to the case of uncorrelated disorder.