Exact Ground States and Excited States of Net Spin Models
Abstract
Description
We study a set of exactly soluble net spin models. There exist two kinds of ground state, one is a complete dimerized state, and the other one is the ground state of corresponding spin-1 model. For the excitation gap, various phases were discovered and determined.
4 pages, 3 figures, replace cond-mat/9805269
4 pages, 3 figures, replace cond-mat/9805269