Alipour, S.; Karimipour, V.; Memarzadeh, L. - In: The European Physical Journal B - Condensed Matter and … 62 (2008) 2, pp. 159-169
We use the matrix product formalism to find exact ground states of two new spin-1 quantum chains with nearest neighbor interactions. One of the models, model I, describes a one-parameter family of quantum chains for which the ground state can be found exactly. In certain limit of the parameter,...