The charge density and pair correlation function of three interacting electrons confined within a two-dimensional disc-like hard wall quantum dot are calculated by full numerical diagonalization of the Hamiltonian. The formation of a Wigner-molecule in the form of equilateral triangular configuration for electrons is observed as the size of the dot is increased.
@article{arxiv.cond-mat/9907221,
title = {The Wigner molecule in a 2D quantum dot},
author = {N. Akman and M. Tomak},
journal= {arXiv preprint arXiv:cond-mat/9907221},
year = {2009}
}