1) Take into account the subsequent perturbation to a two-level system: Vfi(t) = x(1 - e-at)@(t) (1) In this context, x represents the intensity of the perturbation, while a signifies the rate at which this intensity is administered. In the graph displayed below, the most pronounced curve corresponds to the highest o value: Exponential Switching 12 (a) Demonstrate that, when time approaches infinity and the exponential turn-on process be- comes infinitely slow, the transition probability converges to the following limit: plt - very large, a - 0 = (2)