Abstract
We present a theoretical investigation of the effects of Coulomb interactions on the control of wave packets in quantum wells. In particular, we consider the attractive interactions between electrons and holes in an asymmetric double-quantum well. The goal of this work is to clarify the extent to which this interaction affects the controllability of wave packets in quantum-well structures. We find that significant control is attained using simple, experimentally feasible laser pulses. The optimal fields in the presence and absence of the Coulomb interaction are quite similar. The primary effect of the Coulomb interaction is to modify the energy splittings, which induces a small change in the oscillation period and eigenstate composition of the wave packet. Our results indicate that the electron–hole interaction does not substantially affect the controllability of the system dynamics, and that small adjustments in laser parameters can compensate for the interaction.
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