Green's Function Approach to the Edge Spectral Density
Strongly Correlated Electrons
2009-10-30 v2
Abstract
It is shown that the conventional many-body techniques to calculate the Green's functions can be applied to the wide, compressible edge of a quantum Hall bar. The only ansatz we need is the existence of stable density modes that yields a simple equation of motion of the density operators. We derive the spectral density at a finite temperature and show how the tunneling characteristics of a sharp edge can be deduced as a limiting case.
Cite
@article{arxiv.cond-mat/9702074,
title = {Green's Function Approach to the Edge Spectral Density},
author = {J. H. Han},
journal= {arXiv preprint arXiv:cond-mat/9702074},
year = {2009}
}
Comments
Revised and Enlarged. Submitted to Phys. Rev. B