Coulomb drag in phase-coherent mesoscopic structures - Numerical study of disordered 1D-wires
Niels Asger Mortensen, Karsten Flensberg, Antti-Pekka Jauho
Abstract
We study Coulomb drag between two parallel disordered mesoscopic 1D-wires. By numerical ensemble averaging we calculate the statistical properties of the transconductance G21 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.
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