High-field noise in metallic diffusive conductors
Abstract
We analyze high-field current fluctuations in degenerate conductors by mapping the electronic Fermi-liquid correlations at equilibrium to their semiclassical non-equilibrium form. Our resulting Boltzmann description is applicable to diffusive mesoscopic wires. We derive a non-equilibrium connection between thermal fluctuations of the current and resistive dissipation. In the weak-field limit this is the canonical fluctuation- dissipation theorem. Away from equilibrium, the connection enables explicit calculation of the excess ``hot-electron'' contribution to the thermal spectrum. We show that excess thermal noise is strongly inhibited by Pauli exclusion. This behaviour is generic to the semiclassical metallic regime.
Cite
@article{arxiv.cond-mat/0001412,
title = {High-field noise in metallic diffusive conductors},
author = {Frederick Green and Mukunda P Das},
journal= {arXiv preprint arXiv:cond-mat/0001412},
year = {2009}
}
Comments
13 pp, one fig. Companion paper to cond-mat/9911251. Final version, to appear in J. Phys.: Cond. Mat