1.
Phys Rev Lett
; 90(14): 146402, 2003 Apr 11.
Article
in English
| MEDLINE
| ID: mdl-12731934
ABSTRACT
By shifting the reference system for the local-density approximation (LDA) from the electron gas to other model systems, one obtains a new class of density functionals, which by design account for the correlations present in the chosen reference system. This strategy is illustrated by constructing an explicit LDA for the one-dimensional Hubbard model. While the traditional ab initio LDA is based on a Fermi liquid (the three-dimensional interacting electron gas), this one is based on a Luttinger liquid. First applications to inhomogeneous Hubbard models, including one containing a localized impurity, are reported.
2.
Rev Enferm Nov Dimens
; 3(3): 147-53, 1977.
Article
in Portuguese
| MEDLINE
| ID: mdl-586747
3.
Rev Enferm Nov Dimens
; 3(2): 97-102, 1977.
Article
in Portuguese
| MEDLINE
| ID: mdl-585126