Fermion-current basis and correlation functions for the integrable spin 1 chain

C. Babenko (1) , F. Smirnov (1)

1 LPTHE - Laboratoire de Physique Théorique et Hautes Energies

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 operator 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.

Mots clés: 11.10.Kk; 11.90.+t; Integrable lattice systems; spin chains

Domaines: Physique mathématique [math-ph]; Physique Générale [physics.gen-ph]

C. Babenko, F. Smirnov. Fermion-current basis and correlation functions for the integrable spin 1 chain. International Journal of Modern Physics A, 2019, 34 (15), pp.1950075. ⟨10.1142/S0217751X19500751⟩. ⟨hal-02058557⟩