Camargo, F.; Furuya, K.; Nemes, M.C. - In: Physica A: Statistical Mechanics and its Applications 212 (1994) 3, pp. 299-307
We study the behavior of quantum invariants in the integrable maser model, and in the nonintegrable case, where the constants of motion are destroyed by turning on an interaction which is known to be classically chaos generating. By plotting the mean values of selected observables for each...