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arXiv · 1910.07805

On Generalized $Q$-systems

Zoltán Bajnok·Etienne Granet·Jesper Lykke Jacobsen·Rafael I. Nepomechie
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Abstract

We formulate $Q$-systems for the closed XXZ, open XXX and open quantum-group-invariant XXZ quantum spin chains. Polynomial solutions of these $Q$-systems can be found efficiently, which in turn lead directly to the admissible solutions of the corresponding Bethe ansatz equations.

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Zoltán Bajnok, Etienne Granet, Jesper Lykke Jacobsen, Rafael I. Nepomechie. 2020-03-13. On Generalized $Q$-systems. https://doi.org/10.1007/jhep03(2020)177

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