EXACT SOLUTION FOR A ONE-DIMENSIONAL MULTICHANNEL MODEL OF CORRELATEDELECTRONS WITH AN ANDERSON-LIKE IMPURITY

We study a one-dimensional n-channel highly correlated electron model (based on the supersymmetric t - J model) with a magnetic impurity of arbitrary spin S that can hybridize with up to one itinerant electron per channel. The model extends the multichannel Kondo problem to corre lations in the host and to the mixed valence regime. The Bethe ansatz equations are derived and solved for the ground state and for low temp eratures. We conclude that the critical non-Fermi-liquid (overscreened ) behaviour cannot be reached for this interacting electron system. Po ssible applications of the model are discussed.