Boundary S Matrix for the XXZ Chain
classification
✦ hep-th
nlin.SIsolv-int
keywords
boundarychainmatrixresultagreesanisotropicansatzbethe
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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 (Delta > 1). Our result, which is formulated in terms of q-gamma functions, agrees with the vertex-operator result of Jimbo et al.
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