亚波动噪声理论：微观机制，还是现象学？
介观与纳米尺度物理
2009-10-31 v2 统计力学
摘要
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.
引用
@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}
}
备注
Invited paper, UPoN'99 Conference, Adelaide. 13 pp, no figs. Minor revisions to text and references