Mesoscopic Noise Theory: Microscopics, or Phenomenology?
Mesoscale and Nanoscale Physics
2009-10-31 v2 Statistical Mechanics
Abstract
We argue, physically and formally, that existing diffusive models of noise yield inaccurate microscopic descriptions of nonequilibrium current fluctuations. The theoretical shortfall becomes pronounced in quantum-confined metallic systems, such as the two-dimensional electron gas. In such systems we propose a simple experimental test of mesoscopic validity for diffusive theory's central claim: the smooth crossover between Johnson-Nyquist and shot noise.
Keywords
Cite
@article{arxiv.cond-mat/9905086,
title = {Mesoscopic Noise Theory: Microscopics, or Phenomenology?},
author = {F. Green and M. P. Das},
journal= {arXiv preprint arXiv:cond-mat/9905086},
year = {2009}
}
Comments
Invited paper, UPoN'99 Conference, Adelaide. 13 pp, no figs. Minor revisions to text and references