Chirped laser pulses passage

The topology will allow us to classify all the possibilities of complete population transfer by adiabatic passage for a three-level system interacting with two delayed pulses, as it was done for the two-level system interacting with a chirped laser pulse. 

Adiabatic passage can result in a robust population transfer if one uses adiabatic variations of at least two effective parameters of the total laser fields. They can be the amplitude and the detuning of a single laser (chirping) or the amplitudes of two delayed pulses [stimulated Raman adiabatic passage (STIRAP) see Ref. 69 for a review]. The different eigenenergy surfaces are connected to each other by conical intersections, which are associated with resonances (which can be either zero field resonances or dynamical resonances appearing beyond a threshold of the the field intensities). The positions of these intersections determine the possible sets of paths that link an initial state and the... 

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