Density Modulations and Addition Spectra of Interacting Electrons in Disordered Quantum Dots
Mesoscale and Nanoscale Physics
2009-10-31 v1 Strongly Correlated Electrons
Abstract
We analyse the ground state of spinless fermions on a lattice in a weakly disordered potential, interacting via a nearest neighbour interaction, by applying the self-consistent Hartree-Fock approximation. We find that charge density modulations emerge progressively when r_s >1, even away from half-filling, with only short-range density correlations. Classical geometry dependent "magic numbers" can show up in the addition spectrum which are remarkably robust against quantum fluctuations and disorder averaging.
Cite
@article{arxiv.cond-mat/9902099,
title = {Density Modulations and Addition Spectra of Interacting Electrons in Disordered Quantum Dots},
author = {Paul N. Walker and Yuval Gefen and Gilles Montambaux},
journal= {arXiv preprint arXiv:cond-mat/9902099},
year = {2009}
}
Comments
4 pages, 3 eps figures