Preparing wave functions by the chirped adiabatic passage scheme in manifolds of levels - art. no. 033420

Implementation of the adiabatic rapid passage scheme using two chirped puls es in a three-state A system, where the final state is a manifold of closel y spaced levels is proposed. We show how for a proper choice of pulse param eters the method can either select a single level or a superposition state in the manifold. The efficiency, robustness, and potential use of both poss ibilities are explored.