# The XXX spin s quantum chain and the alternating s1, s2 chain with boundaries

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## Abstract

The integrable XXX spin s quantum chain and the alternating $s^{1}$, $s^{2}$ ($s^{1}-s^{2}={1\over 2}$) chain with boundaries are considered. The scattering of their excitations with the boundaries via the Bethe ansatz method is studied, and the exact boundary S matrices are computed in the limit $s, s^{1, 2} \to \infty$. Moreover, the connection of these models with the SU(2) Principal Chiral, WZW and the RSOS models is discussed.
Original language English 591–610 20 Nuclear Physics B 634 3 https://doi.org/10.1016/S0550-3213(02)00254-7 Published - 15 Jul 2002

• hep-th
• cond-mat