EXACT SOLUTION FOR AN N-MOLECULE-RADIATION-FIELD HAMILTONIAN

The exact solution for a problem of N identical two-level molecules interacting through a dipole coupling with a single-mode quantized radiation field at resonance is given. Approximate expressions for the eigenvectors and eigenvalues for the ground and low-lying excited states, as well as the most highly excited states, are developed and compared with the exact results. © 1968 The American Physical Society.