Schüler M., Pavlyukh Y., Berakdar J.

In a semiconductor-based double quantum well (QW) coupled to a degree of freedom with an internal dynamics, we demonstrate that the electronic motion is controllable within femtoseconds by appropriately shaped electromagnetic pulses. For a pulse-driven AlxGa1−xAs based symmetric double QW coupled to uniformly distributed or localized vibrational modes analytical results can be obtained if only the lowest two energy levels are considered. These predictions are generalized by full-fledged numerical simulations showing that localization and time-stabilization of the driven electron dynamics is indeed possible under the conditions identified here, even with simultaneous excitation of vibrational modes.

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