Scalar products of Bethe vectors in models with g l ( 2 | 1 ) symmetry 2. Determinant representation*
A Hutsalyuk, A Liashyk, S Z Pakuliak +2 more
Abstract We study integrable models with g l ( 2 | 1 ) symmetry and solvable by nested algebraic Bethe ansatz. We obtain a determinant representation for scalar products of Bethe vectors, when the Bethe parameters obey some relations weaker than the Bethe equations. This representation allows us to find the norms of on-shell Bethe vectors and obtain determinant formulas for form factors of the diagonal entries of the monodromy matrix.
arXiv:1606.03573•Journal of Physics A Mathematical and Theoretical•Dec 20, 2016•30 citations