Density functional theory for fermions close to the unitary regime
Nuclear Theory
2009-02-05 v1 Strongly Correlated Electrons
Atomic Physics
Abstract
We consider interacting Fermi systems close to the unitary regime and compute the corrections to the energy density that are due to a large scattering length and a small effective range. Our approach exploits the universality of the density functional and determines the corrections from the analyical results for the harmonically trapped two-body system. The corrections due to the finite scattering length compare well with the result of Monte Carlo simulations. We also apply our results to symmetric neutron matter.
Keywords
Cite
@article{arxiv.nucl-th/0602050,
title = {Density functional theory for fermions close to the unitary regime},
author = {Anirban Bhattacharyya and T. Papenbrock},
journal= {arXiv preprint arXiv:nucl-th/0602050},
year = {2009}
}
Comments
4 pages, 2 figures