Temperley-Lieb words as valence-bond ground states
Arndt, P.F., Heinzel, T. (Bonn Univ. (Germany). Physikalisches Inst.), Yung, C.M. (Australian National Univ., Canberra, ACT (Australia). Dept. of Mathematics), Bonn Univ. (Germany). Physikalisches Inst.
Abstract
Based on the Temperley-Lieb algebra we define a class of one-dimensional Hamiltonians with nearest and next-nearest neighbour interactions. Using the regular representation we give ground states of this model as words of the algebra. Two point correlation functions can be computed employing the Temperley-Lieb relations. Choosing a spin-1/2 representation of the algebra we obtain a generalization of the (q-deformed) Majumdar-Gosh model. The ground states become valence-bond states. (orig.)