Issue |
Europhys. Lett.
Volume 41, Number 6, March II 1998
|
|
---|---|---|
Page(s) | 665 - 670 | |
Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
DOI | https://doi.org/10.1209/epl/i1998-00210-x | |
Published online | 01 September 2002 |
Some new exact ground states for generalized Hubbard models
Institut für Angew. Mathematik, Universität Bonn,
Bonn, Germany
Fakultät für Mathematik, Ruhr-Universität Bochum,
D-44780 Bochum, Germany
Received:
1
December
1997
Accepted:
29
January
1998
A set of new exact ground states of the generalized Hubbard models in arbitrary dimensions with explicitly given parameter regions is presented. This is based on a simple method for constructing exact ground states for homogeneous quantum systems.
PACS: 75.10.Jm – Quantized spin models / 71.27.+a – Strongly correlated electron systems; heavy fermions
© EDP Sciences, 1998
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