Abstract
We study the analytic Bethe, ansatz in solvable vertex models associated with the YangianY(X r ) or its quantum affine analogueU q (X (1) r ) forX r =B r ,C r andD r . Eigenvalue formulas are proposed for the transfer matrices related to all the fundamental representations ofY(X r ). Under the Bethe ansatz equation, we explicitly prove that they are pole-free, a crucial property in the ansatz. Conjectures are also given on higher representation cases by applying theT-system, the transfer matrix functional relations proposed recently. The eigenvalues are neatly described in terms of Yangian analogues of the semi-standard Young tableaux.
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Communicated by M. Jimbo
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Kuniba, A., Suzuki, J. Analytic Bethe ansatz for fundamental representations of Yangians. Commun.Math. Phys. 173, 225–264 (1995). https://doi.org/10.1007/BF02101234
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DOI: https://doi.org/10.1007/BF02101234