Abstract
We employ a discrete integral-reflection representation of the double affine Hecke algebra of type \(C^\vee C\) at the critical level \(\text {q}=1\), to endow the open finite q-boson system with integrable boundary interactions at the lattice ends. It is shown that the Bethe Ansatz entails a complete basis of eigenfunctions for the commuting quantum integrals in terms of Macdonald’s three-parameter hyperoctahedral Hall–Littlewood polynomials.
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Communicated by Jean-Michel Maillet.
This work was supported in part by the Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT) Grants # 1170179, # 1141114 and # 3160646.
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van Diejen, J.F., Emsiz, E. & Zurrián, I.N. Completeness of the Bethe Ansatz for an Open \(\varvec{q}\)-Boson System with Integrable Boundary Interactions. Ann. Henri Poincaré 19, 1349–1384 (2018). https://doi.org/10.1007/s00023-018-0658-6
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DOI: https://doi.org/10.1007/s00023-018-0658-6