Nonequilibrium Noise in Metals at Mesoscopic Scales
Abstract
We review a semiclassical theory of high-field noise in degenerate conductors, based on propagator solutions to the Boltzmann equation for the fluctuation distribution function. The theory provides a microscopic description of correlation-induced suppression of noise in quantum-confined systems, such as heterojunction devices. It is also capable of describing diffusive conductors in the mesoscopic regime. We discuss nonequilibrium thermal noise in a simple model of a mesoscopic wire.
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