Bethe ansatz solution of the Osp(1|2n) invariant spin chain
M. J. Martins
Abstract
We have applied the analytical Bethe ansatz approach in order to solve the Osp(1|2n) invariant magnet. By using the Bethe ansatz equations we have calculated the ground state energy and the low-lying dispersion relation. The finite size properties indicate that the model has a central charge c=n.
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