QUANTUM AND CLASSICAL DYNAMICS FOR A PULSED NONLINEAR OSCILLATOR

We discuss a system comprising an anharmonic oscillator (nonlinear Ker r medium) driven by a series of ultra-short coherent pulses. Assuming that the system was initially in the vacuum state, we compare the clas sical and quantum dynamics for that system. We refer our results to th ose concerning nonlinear oscillator driven by quadratic pulses. Moreov er, we discuss the influence of the type of initial conditions on the classical results obtained.