Volume 41, Number 6, March II 1998
|Page(s)||665 - 670|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Some new exact ground states for generalized Hubbard models
Institut für Angew. Mathematik, Universität Bonn,
Fakultät für Mathematik, Ruhr-Universität Bochum,
D-44780 Bochum, Germany
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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