Existence of Density Functionals for Excited States and Resonances

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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.
4 pages, no figures

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Other Condensed Matter, Strongly Correlated Electrons, Mathematical Physics, Nuclear Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/181456

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0610108
 http://arxiv.org/abs/cond-mat/0610108
 Phys.Lett.B652:69-72,2007
 doi:10.1016/j.physletb.2007.06.071

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