Forming of Rydberg wave packet under the action of the pulse of Ti:sapphire laser

We present the results of numerical modelling of population dynamics in a hydrogen atom under the action of laser pulses of various duration, intensity and frequency. The possibility of formation of wave packets, including the states with high values of orbital and magnetic quantum numbers, via multiple transitions between the states of discrete and continuous spectrum under the action of the laser field is studied. The model is based on the expansion of the electron wave function over a large basis of hydrogen eigenstates of discrete and continuous spectrum. Ionization losses are taken into account by using a realistic model of the continuum. Partial localization of electron density in radial and angular variables is demonstrated. Most suitable conditions for wave packet formation are discussed for attainable lasers parameters.