Quenched Disorder From Sea-Bosons
Strongly Correlated Electrons
2007-05-23 v1 Disordered Systems and Neural Networks
Abstract
The degenerate Fermi gas coupled to a random potential is used to study metal-insulator transitions in various dimensions. We first recast the problem in the sea-boson language that allows for an easy evaluation of important physical attributes. We evaluate the dynamical number-number correlation function and from this compute the a.c. conductivity. We find that the d.c. conductivity vanishes in one and two dimensions. For a hamiltonian that forbids scattering of an electron from within the Fermi surface to another state within the Fermi surface we find that there is no metal-insulator transition in three dimensions either.
Cite
@article{arxiv.cond-mat/0306037,
title = {Quenched Disorder From Sea-Bosons},
author = {Girish S. Setlur},
journal= {arXiv preprint arXiv:cond-mat/0306037},
year = {2007}
}
Comments
8 pages, Plain LaTeX