Selective and efficient control of coherent population transfer with time-separated chirped pulses

We propose a selective, efficient, and robust way to realize control of coherent population transfer in a Mu-type four-level system with a closely spaced doublet in the final state with time-separated chirped pump pulse and Stokes pulse pair by merging stimulated Raman adiabatic passage, temporal coherent control, and chirped adiabatic passage techniques. Moreover, an arbitrary coherent superposition between the final doublet, or between the intermediate state and either of the doublets can be created. This method holds the ability to "control with control" and has potential applications in coherent control of chemical reactions and quantum information processing.