Figure 1

The figure depicts the system under consideration. At time \(t=0\) the state of the system is prepared and, in the first stage, the atom moves with constant velocity reaching the cavities at the time \(t=T_{0}\). (a) In the first situation we consider that the atom interacts with both cavity fields during a certain time interval. (b) In the second scheme an additional stage is considered: the atom exits the cavities.