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Role of Coulomb correlations in the optical spectra of semiconductor quantum dots

Ulrich Hohenester, Elisa Molinari

cond-mat.mes-hallarXiv:cond-mat/0005253

Abstract

We present a consistent theoretical description of few-particle effects in the optical spectra of semiconductor quantum dots, based on a direct-diagonalization approach. We show that, because of the strong Coulomb interaction among electrons and holes, each configuration of the confined few-particle system leads to its characteristic signature in the optical spectra. We discuss quantitative predictions and comparison with experiments for both absorption and luminescence.

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