Quantum Integrable Multiatom Matter-Radiation Models With and Without the Rotating-Wave Approximation

New integrable multi-atom matter-radiation models with and without rotating wave approximation (RWA) are constructed and exactly solved through algebraic Bethe ansatz. The models with RWA are generated through ancestor model approach in an unified way. The rational case yields the standard type of matter-radiaton models, while the trigonometric case corresponds to their q-deformations. The models without RWA are obtained from the elliptic case at the Gaudin and high spin limit.
9 pages, no figure, talk presented in int. conf. NEEDS04 (Gallipoli, Italy, July 2004)