“…The last step, photorecombination, is now well understood in terms of quantum scattering calculations developed in the context of photoionization. [15,16,19] Most remarkably, the strong laser field does not lead to a measurable distortion of the electronic wave functions within the accuracy of current experiments, even in polarizable systems like xenon [20] or in molecules with appreciable extension along the direction of the laser field like CO 2 . [4,5] The second step, propagation of the electron wavepacket, is largely dominated by the laser field and is well described by classical equations as evidenced by, e.g.…”