A Generalized Jaynes-Cummings Hamiltonian and Supersymmetric   Shape-Invariance
  A class of shape-invariant bound-state problems which represent two-level systems are introduced. It is shown that the coupled-channel Hamiltonians obtained correspond to the generalization of the Jaynes-Cummings Hamiltonian. 
A.N.F. Aleixo (Wisconsin U., Madison & Rio de Janeiro Federal U.),   A.B. Balantekin (Max-Planck-Institute, Heidelberg & Wis...