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Exploiting exciton-exciton interactions in semiconductor quantum dots for quantum-information processing

Filippo Troiani·Ulrich Hohenester·Elisa Molinari
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Abstract

We propose an all-optical implementation of quantum-information processing in semiconductor quantum dots, where electron-hole excitations (excitons) serve as the computational degrees of freedom (qubits). We show that the strong dot confinement leads to an overall enhancement of Coulomb correlations and to a strong renormalization of the excitonic states, which can be exploited for performing conditional and unconditional qubit operations.

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Filippo Troiani, Ulrich Hohenester, Elisa Molinari. 2000-05-17. Exploiting exciton-exciton interactions in semiconductor quantum dots for quantum-information processing. https://doi.org/10.1103/physrevb.62.r2263

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