Form factors of the monodromy matrix entries in gl(2|1)-invariant integrable models

Abstract

We study integrable models solvable by the nested algebraic Bethe ansatz and described by $\mathfrak{gl}(2|1)$ or $\mathfrak{gl}(1|2)$ superalgebras. We obtain explicit determinant representations for form factors of the monodromy matrix entries. We show that all form factors are related to each other at special limits of the Bethe parameters. Our results allow one to obtain determinant formulas for form factors of local operators in the supersymmetric t-J model.

26 pages. arXiv admin note: text overlap with arXiv:1412.6037

References in corpus (2)

• Zero modes method and form factors in quantum integrable models
• Scalar products in GL(3)-based models with trigonometric R-matrix. Determinant representation

Cited by in corpus (1)

• Bethe Vectors for Composite Models with $\mathfrak{gl}(2|1)$ and $\mathfrak{gl}(1|2)$ Supersymmetry