Exact ground state of the generalized three-dimensional Shastry-Sutherland model
arXiv:cond-mat/0201003 · doi:10.1140/epjb/e2002-00256-0
Abstract
We generalize the Shastry-Sutherland model to three dimensions. By representing the model as a sum of the semidefinite positive projection operators, we exactly prove that the model has exact dimer ground state. Several schemes for constructing the three-dimensional Shastry-Sutherland model are proposed.
Latex, 3 pages, 5 eps figures