Electron-hole generations: A numerical approach to interacting fermion systems
Mesoscale and Nanoscale Physics
2009-11-07 v1
Abstract
A new approach, motivated by Fock space localization, for constructing a reduced many-particle Hilbert space is proposed and tested. The self-consistent Hartree-Fock (SCHF) approach is used to obtain a single-electron basis from which the many-particle Hilbert space is constructed. For a given size of the truncated many particle Hilbert space only states with the lowest number of particle-hole excitations are retained and exactly diagonalized. This method is shown to be more accurate than previous truncation methods, while there is no additional computational complexity.
Cite
@article{arxiv.cond-mat/0201442,
title = {Electron-hole generations: A numerical approach to interacting fermion systems},
author = {Richard Berkovits},
journal= {arXiv preprint arXiv:cond-mat/0201442},
year = {2009}
}
Comments
8 pages, 4 figures