On the quantum inverse scattering problem

Details On the quantum inverse scattering problem On the quantum inverse scattering problem

1999-11-04

arxiv.org/abs/hep-th/9911030v1

Nucl.Phys. B575 (2000) 627-644

Physics

High Energy Physics

High Energy Physics - Theory

Latex, 20 pages

Scientific paper

10.1016/S0550-3213(00)00097-3

A general method for solving the so-called quantum inverse scattering problem (namely the reconstruction of local quantum (field) operators in term of the quantum monodromy matrix satisfying a Yang-Baxter quadratic algebra governed by an R-matrix) for a large class of lattice quantum integrable models is given. The principal requirement being the initial condition (R(0) = P, the permutation operator) for the quantum R-matrix solving the Yang-Baxter equation, it applies not only to most known integrable fundamental lattice models (such as Heisenberg spin chains) but also to lattice models with arbitrary number of impurities and to the so-called fused lattice models (including integrable higher spin generalizations of Heisenberg chains). Our method is then applied to several important examples like the sl(n) XXZ model, the XYZ spin-1/2 chain and also to the spin-s Heisenberg chains.

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