Kinetic Theory and Mesoscopic Noise

M. P. Das; F. Green

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arXiv · cond-mat/9910183

Kinetic Theory and Mesoscopic Noise

M. P. Das·F. Green

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Abstract

In the theory of noise processes for mesoscopic conductors, the relationship between shot noise and hot-electron noise is absolutely fundamental to understanding the underlying microscopic fluctuations. From the vantage point of orthodox microscopics and kinetics, their relation is a long way from being settled. Its resolution calls for the tools of many-body theory. We motivate the many-body approach to noise, review the analysis of conductance and current noise within linear diffusive theories, and discuss the smooth crossover between thermal noise and shot noise. We outline a kinetic theory of nonequilibrium fluctuations, and show how this completely orthodox approach directly negates drift-diffusive explanations of the crossover.

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M. P. Das, F. Green. 1999-10-13. Kinetic Theory and Mesoscopic Noise. https://arxiv.org/abs/cond-mat/9910183

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