The XXX spin s quantum chain and the alternating $s^{1}$, $s^{2}$ chain with boundaries

Details The XXX spin s quantum chain and the alternating $s^{1}$, $s^{2}$ chain with boundaries The XXX spin s quantum chain and the alternating $s^{1}$, $s^{2}$ chain with boundaries

2002-01-02

arxiv.org/abs/hep-th/0201008v2

Nucl.Phys. B634 (2002) 591-610

Physics

High Energy Physics

High Energy Physics - Theory

21 pages Latex, one reference added, minor revisions in the title and the text, to appear in Nucl. Phys. B

Scientific paper

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.

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