Ab initio computation of circular quantum dots
Mesoscale and Nanoscale Physics
2011-09-29 v1 Nuclear Theory
Computational Physics
Abstract
We perform coupled-cluster and diffusion Monte Carlo calculations of the energies of circular quantum dots up to 20 electrons. The coupled-cluster calculations include triples corrections and a renormalized Coulomb interaction defined for a given number of low-lying oscillator shells. Using such a renormalized Coulomb interaction brings the coupled-cluster calculations with triples correlations in excellent agreement with the diffusion Monte Carlo calculations. This opens up perspectives for doing ab initio calculations for much larger systems of electrons.
Cite
@article{arxiv.1009.4833,
title = {Ab initio computation of circular quantum dots},
author = {M. Pedersen Lohne and G. Hagen and M. Hjorth-Jensen and S. Kvaal and F. Pederiva},
journal= {arXiv preprint arXiv:1009.4833},
year = {2011}
}
Comments
17 pages, 4 figures, submitted to Physical Review B