Linearized Feedforward Control of Two-Level Quantum System by Modulated   External Field
  We propose a model of feedforward (open-loop) optical control of two-level atom in the linearized form. This model allows to express the general form of solution for the atomic level populations via the arbitrary shapes of the control signal. Then we make numerical investigations of different shapes for the optical control signal. 
Sergei Borisenok, Saifullah