Existence of Density Functionals for Excited States and Resonances
Other Condensed Matter
2008-11-26 v1 Strongly Correlated Electrons
Mathematical Physics
math.MP
Nuclear Theory
Abstract
We show how every bound state of a finite system of identical fermions, whether a ground state or an excited one, defines a density functional. Degeneracies created by a symmetry group can be trivially lifted by a pseudo-Zeeman effect. When complex scaling can be used to regularize a resonance into a square integrable state, a DF also exists.
Cite
@article{arxiv.cond-mat/0610108,
title = {Existence of Density Functionals for Excited States and Resonances},
author = {B. G. Giraud and K. Kato and A. Ohnishi and S. M. A. Rombouts},
journal= {arXiv preprint arXiv:cond-mat/0610108},
year = {2008}
}
Comments
4 pages, no figures