Interacting lattice electrons with disorder in two dimensions: Numerical evidence for a metal-insulator transition with a universal critical conductivity
Strongly Correlated Electrons
2015-05-20 v1
Abstract
The dc-conductivity of electrons on a square lattice interacting with a local repulsion in the presence of disorder is computed by means of quantum Monte Carlo simulations. We provide evidence for the existence of a transition from an Anderson insulator to a correlated disordered metal with a universal value of the critical dc-conductivity \sigma_{dc,crit} = (1.18 \pm 0.06) e^{2}/h at the transition.
Keywords
Cite
@article{arxiv.1012.5992,
title = {Interacting lattice electrons with disorder in two dimensions: Numerical evidence for a metal-insulator transition with a universal critical conductivity},
author = {Prabuddha B. Chakraborty and Krzysztof Byczuk and Dieter Vollhardt},
journal= {arXiv preprint arXiv:1012.5992},
year = {2015}
}
Comments
4 pages, 3 figures, 1 table