Do correlations create an energy gap in electronic bilayers? Critical analysis of different approaches
Strongly Correlated Electrons
2009-10-31 v1
Abstract
This paper investigates the effect of correlations in electronic bilayers on the longitudinal collective mode structure. We employ the dielectric permeability constructed by means of the classical theory of moments. It is shown that the neglection of damping processes overestimates the role of correlations. We conclude that the correct account of damping processes leads to an absence of an energy gap.
Cite
@article{arxiv.cond-mat/9905405,
title = {Do correlations create an energy gap in electronic bilayers? Critical analysis of different approaches},
author = {J. Ortner},
journal= {arXiv preprint arXiv:cond-mat/9905405},
year = {2009}
}
Comments
4 pages