Quantum spin chain with "soliton non-preserving" boundary conditions

Details Quantum spin chain with "soliton non-preserving" boundary conditions Quantum spin chain with "soliton non-preserving" boundary conditions

2000-06-26

arxiv.org/abs/hep-th/0006197v2

J.Phys.A33:8797-8808,2000

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, LaTeX, two appendices added, minor corrections

Scientific paper

10.1088/0305-4470/33/48/315

We consider the case of an integrable quantum spin chain with "soliton non-peserving" boundary conditions. This is the first time that such boundary conditions have been considered in the spin chain framework. We construct the transfer matrix of the model, we study its symmetry and we find explicit expressions for its eigenvalues. Moreover, we derive a new set of Bethe ansatz equations by means of the analytical Bethe ansatz method.

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