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arXiv · 1611.05390

Non-Abelian symmetries of the half-infinite XXZ spin chain

Pascal Baseilhac·Samuel Belliard
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Abstract

The non-Abelian symmetries of the half-infinite XXZ spin chain for all possible types of integrable boundary conditions are classified. For each type of boundary conditions, an analog of the Chevalley-type presentation is given for the corresponding symmetry algebra. In particular, two new algebras arise that are, respectively, generated by the symmetry operators of the model with triangular and special $U_q(gl_2)-$invariant integrable boundary conditions.

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Pascal Baseilhac, Samuel Belliard. 2017-02-21. Non-Abelian symmetries of the half-infinite XXZ spin chain. https://doi.org/10.1016/j.nuclphysb.2017.01.012

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