Samuel Belliard, Rodrigo A. Pimenta
Published 2014-12-23Version 1
The spectral problem of the Heisenberg XXZ spin-$\frac{1}{2}$ chain on the segment is investigated within a modified algebraic Bethe ansatz framework. We consider in this work the most general boundaries allowed by integrability. The eigenvalues and the eigenvectors are obtained. They are characterised by a set of Bethe roots with cardinality equal to $N$, the length of the chain, and which satisfies a set of Bethe equations with an additional term.
Modified algebraic Bethe ansatz for XXZ chain on the segment - I - triangular cases
On the physical part of the factorized correlation functions of the XXZ chain
On condensation properties of Bethe roots associated with the XXZ chain
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