A Theoretical Analysis of Instantaneous Coulomb Renormalizations in a Single Quantum Dot Pump-Probe Experiment

Titelangaben

Huneke, Jan ; Kuhn, Tilmann ; D'Amico, I. ; Axt, Vollrath Martin:
A Theoretical Analysis of Instantaneous Coulomb Renormalizations in a Single Quantum Dot Pump-Probe Experiment.
In: Journal of Physics: Conference Series. Bd. 245 (2010) Heft 1 . - 012025.
ISSN 1742-6596
DOI: https://doi.org/10.1088/1742-6596/245/1/012025

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Abstract

We present a theoretical analysis of Coulomb-correlation effects on the optical spectra of a single negatively charged quantum dot. The considered initial and final many particle states are adapted and motivated by a recent two-color pump-probe experiment. We demonstrate that the lowest energy transition is noticeably affected by exchange interactions if the initial state consists of a hot trion. It turns out that for initial states as obtained after spin-conserving carrier relaxation new absorption and emission lines emerge.