ИСТИНА

It is known from [1, 2] that the influence of high intensity laser fields causes the significant reconstruction of atomic system resulting in stabilization phenomenon, i.e. population trapping in high-lying Rydberg states. One of the possible ways to study the structure of such reconstructed (dressed) by the laser field quantum systems is to analyze their spontaneous emission. We have developed the new approach how to introduce spontaneous emission into the Schrödinger equation. The proposed approach is applied to examine the dynamics of field-driven atomic system in the regime of interference stabilization (IS). Main predictions of IS theory are testified and confirmed. Specific features of atomic system dynamics in two-color laser field are studied when high-frequency laser field causes the coupling of the ground atomic state with a Rydberg state by means of Rabi oscillations, while low-frequency field provides the stabilization phenomenon and population trapping in Rydberg states. 1) Fedorov, M. V. and Movsesian, A. M. 1988. J. Phys. B, 21, L155 2) Fedorov, M. V., Tehranchi, M.-M., and Fedorov, S. M. 1996. J. Phys. B, 29, 2907