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Soliton S matrices for the critical AN-1(1) chain

Anastasia Doikou, Rafael I. Nepomechie

hep-tharXiv:hep-th/9906069

Abstract

We compute by Bethe Ansatz both bulk and boundary hole scattering matrices for the critical AN-1(1) quantum spin chain. The bulk S matrix coincides with the soliton S matrix for the AN-1(1) Toda field theory with imaginary coupling. We verify our result for the boundary S matrix using a generalization of the Ghoshal-Zamolodchikov boundary crossing relation.

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