Form factors of integrable Heisenberg (higher) spin chains

Jean Michel Maillet (1) , O. A. Castro Alvaredo (2)

1 Phys-ENS - Laboratoire de Physique de l'ENS Lyon
2 CMS - Center for Mathematical Sciences

We present determinant formulae for the form factors of spin operators of general integrable XXX Heisenberg spin chains for arbitrary (finite dimensional) spin representations. The results apply to any "mixed" spin chains, such as alternating spin chains, or to spin chains with magnetic impurities.

Mots clés: Integrable models; spin chains; Bethe ansatz; form factors

Domaines: Physique des Hautes Energies - Théorie [hep-th]

Jean Michel Maillet, O. A. Castro Alvaredo. Form factors of integrable Heisenberg (higher) spin chains. Journal of Physics A: Mathematical and Theoretical, 2007, 40 (27), pp.7451-7471. ⟨10.1088/1751-8113/40/27/004⟩. ⟨ensl-00266541⟩