Quantum Point Contacts and Beyond: New Results on Mesoscopic Conductance and Fluctuations
Mesoscale and Nanoscale Physics
2007-05-23 v1 Statistical Mechanics
Strongly Correlated Electrons
Abstract
We summarize the main results of a microscopically based kinetic theory, applicable to open quantum point contacts (QPCs) driven up to high fields. The governing role of gauge invariance -- and the many-body sum rules for the electron gas -- lead to stringent constraints on both transport and fluctuations. These constraints exert a dominant influence on the observable properties of QPCs and similar open mesoscopic conductors. We illustrate this in the context of certain predictions within purely phenomenological models of mesoscopic transport.
Keywords
Cite
@article{arxiv.cond-mat/0404412,
title = {Quantum Point Contacts and Beyond: New Results on Mesoscopic Conductance and Fluctuations},
author = {Mukunda P. Das and Frederick Green and Jagdish S. Thakur},
journal= {arXiv preprint arXiv:cond-mat/0404412},
year = {2007}
}
Comments
TeX, 22 pp, 7 figs. See also Green et al., Phys. Rev. Lett. 92, 156804 (2004)