Proceedings of the Conference on Nonlinear Coherent Structures in Physics and Biology, Heriot-Watt University, Edinburgh, July 95
The Hubbard Model on a Complete Graph: Exact Analytical Results.
M. Salerno
Department of Theoretical Physics,
University of Salerno,
84100 Salerno, Italy
Abstract
We derive the analytical
expression of the ground state of the
Hubbard model with unconstrained hopping at half
filling and for arbitrary lattice sites.