We show that excitation of a semiconductor nanocrystal with a short pulse of
electromagnetic field can result in the generation of a unipolar electric pulse, which is the …

A new scheme to generate isolated attosecond pulses is presented that involves the use of a
laser field and of a unipolar field. The laser field has a pulse of intensity I= 1.5× 1014 W cm …

An exact solution of the Schrödinger equation has been obtained in the sudden perturbation
approximation for the case of the interaction of attosecond and shorter electromagnetic …

Inelastic processes and the reemission of attosecond and shorter electromagnetic pulses by
atoms have been considered within the analytical solution of the Schrödinger equation in …

The response of an atom to the action of a pulse shorter than the Kepler period of the
optically-active electron is often treated analytically using the sudden-perturbation …

Non-adiabatic electron-ion quantum dynamics is still an area of many unresolved problems
even for such simple systems as the H 2+ molecular ion. Mathematical modelling based on …

The Magnus expansion of the time propagator for an atom in the classical field of a short,
strong laser pulse is employed increasingly as attosecond pulses are developed. Here the …

1. Введение. Приближение внезапных возмущений (см., например,[1, 2]) в квантовой
механике является основой расчетных методик, когда возмущение не является …

A collinear scattering of a structured particle from a hard wall is studied with consideration of
vibrational transitions initiated by the collision. It is shown that this problem can be solved …

На основе аналитического решения уравнения Шредингера в приближении внезапных
возмущений рассмотрены неупругие процессы и переизлучение атомами импульсов …