Atomic scale of an electrical area for unipolar light pulses

A new parameter of “the atomic scale of an electrical area” has been introduced. It shows the effect of unipolar pulses on a quantum system. This parameter is equal to the ratio of the Planck constant to the characteristic size of the quantum system and the electric charge of the quantum particle. This new parameter is universal and can be used to assess the efficiency of the action of unipolar and quasi-unipolar pulses on various quantum systems.