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hep-th1995★ 42 cited
Analytical Bethe Ansatz for quantum-algebra-invariant open spin chains
Simone Artz, Luca Mezincescu, Rafael I. Nepomechie
We determine the eigenvalues of the transfer matrices for integrable open quantum spin chains which are associated with the affine Lie algebras $A^{(2)}_{2n-1}, B^{(1)}_n, C^{(1)}_…
hep-th1995★ 2 cited
Exact S matrices for integrable quantum spin chains
Luca Mezincescu, Rafael I. Nepomechie
We begin with a review of the antiferromagnetic spin 1/2 Heisenberg chain. In particular, we show that the model has particle-like excitations with spin 1/2, and we compute the exa…