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Article Dans Une Revue J.Phys.A Année : 2019

Towards the solution of an integrable $D_2^{(2)}$ spin chain

Rafael I. Nepomechie
  • Fonction : Auteur
Ana L. Retore
  • Fonction : Auteur

Résumé

Two branches of integrable open quantum-group invariant quantum spin chains are known. For one branch (), a complete Bethe ansatz solution has been proposed. However, the other branch () has so far resisted solution. In an effort to address this problem, we consider here the simplest case n  =  1. We propose a Bethe ansatz solution, which however is not complete, as it describes only the transfer-matrix eigenvalues with odd degeneracy. We also consider a proposal for the missing eigenvalues.

Dates et versions

hal-02160495 , version 1 (19-06-2019)

Identifiants

Citer

Rafael I. Nepomechie, Rodrigo A. Pimenta, Ana L. Retore. Towards the solution of an integrable $D_2^{(2)}$ spin chain. J.Phys.A, 2019, 52 (43), pp.434004. ⟨10.1088/1751-8121/ab434d⟩. ⟨hal-02160495⟩
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