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Communication Dans Un Congrès Année : 2007

New results in the XXZ open spin chain

Résumé

In this review, I describe a recent approach based on the representation theory of the $q-$Onsager algebra which is used to derive exact results for the XXZ open spin chain. The complete spectrum and eigenstates are obtained as rational functions of a single variable which discrete values correspond to the roots of a certain characteristic polynomial. Comments and open problems are also presented.
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Dates et versions

hal-00193557 , version 1 (04-12-2007)

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Pascal Baseilhac. New results in the XXZ open spin chain. Recent Advances in Quantum Integrable Systems, Sep 2007, Annecy, France. ⟨hal-00193557⟩
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