Immanent Features Research Articles

Nonadiabatic Landau-Zener transitions and high-harmonic generation

It is shown that nonadiabatic Landau-Zener transitions, induced by short laser pulses, generate new peaks in the power spectrum of scattered radiation. In particular, it appears that although this power spectrum significantly depends on the form of pulses, the positions of new peaks are independent of the shape of laser pulses, i.e., for a given laser frequency these positions are immanent features of quantum systems.