The role of excited discrete atomic states in the formation of quantum vortices in barrier-suppression ionization of hydrogen-like atom by ultrashort laser pulse

Abstract

We theoretically examine the quantum vortices creating through barrier-suppression ionization of two dimensional hydrogen atom by ultrashort laser pulse. We show that for the considered case of ionization, the excited discrete atomic states do not impact on the vortex formation, and the problem can be considered in the single-level atom approximation.