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Field-induced Coulomb coupling in semiconductor macroatoms: application to "single-electron" quantum devices

I. D'Amico·F. Rossi
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Abstract

A novel approach for the control of exciton-exciton Coulomb coupling in semiconductor macroatoms/molecules is proposed. We show that by applying properly tailored external fields, we can induce ---or significantly reinforce--- excitonic dipoles, which in turn allows to control and magnify intra- as well as inter-dot few-exciton effects. Such dipole-dipole interaction mechanism will be accounted for within a simple analytical model, which is found to be in good agreement with fully three-dimensional calculations. The proposed approach may play an important role for the design and realization of fully-optical quantum gates as well as ultrafast optical switches.

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I. D'Amico, F. Rossi. 2001-06-14. Field-induced Coulomb coupling in semiconductor macroatoms: application to "single-electron" quantum devices. https://doi.org/10.1063/1.1399003

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