- 93-307 Hal Tasaki
- Uniqueness of Ground State in
Exactly Solvable Hubbard, Periodic Anderson, and Emery Models
Nov 24, 93
(auto. generated ps),
of related papers
Abstract. We study the exactly solvable strongly interacting electron
models recently introduced by Brandt and Giesekus, and further
generalized by other authors.
For a very general class of models, including the Hubbard, the
periodic Anderson, and
the Emery models with certain hopping matrices and infinitely large
Coulomb repulsion on d-sites, we prove that the known exact ground
indeed the unique ground state
for a certain electron number.
The uniqueness guarantees that one can discuss physics of various
interacting electron systems by analyzing the exact ground states.
(This file lacks the figure.
I also mail a PS version of the same paper with the figure.)