Fermion-current basis and correlation functions for the integrable spin 1 chain
arXiv:1902.07054 · doi:10.1142/S0217751X19500751
Abstract
We use the fermion-current basis in the space of local operators for the computation of the expectation values for the integrable spin chain of spins 1. Our main tool consists in expressing a given local operators in the fermion-current basis. For this we use the same method as in the spin 1/2 case which is based on the arbitrariness of the Matsubara data.
12 pages