Thermodynamics of the n-channel Kondo problem (numerical solution)

The thermodynamic Bethe ansatz equations of the n-channel Kondo problem have been solved numerically. Complete compensation of the impurity magnetic moment and Fermi liquid behaviour at low temperatures is obtained if the impurity spin S is equal to n/2. At high temperatures a qualitatively new behaviour is found for large n. For n>2S the crossover to the scaling regime described by critical exponents has been calculated numerically.