We compute by means of the Bethe ansatz the boundary S-matrix for the open anisotropic spin-1/2 chain with diagonal boundary magnetic fields in the noncritical regime (Δ > 1). Our result, which is formulated in terms of q-gamma functions, agrees with the vertex-operator result of Jimbo et al.
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Mathematical Physics
- Physics and Astronomy(all)