Canadian Journal of Physics

Elementary Bethe Ansatz solution of two lattice spin models

Paul Bracken

Published Jan 1, 1997• 0 citations

Abstract

A simple detailed derivation is given of the Bethe Ansatz solution and the raising operator condition on the amplitudes of the wave function that demands that this state be a highest weight state for the one-dimensional Heisenberg model. This is extended to the case of a single spin impurity on the lattice. The equivalent form of the Ansatz is derived, and several properties of the associated eigenvalue problem are developed. R´ esum´

DOI: 10.1139/cjp-75-4-247

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