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arXiv · 1702.02784

Time-resolved pump-probe signals of a continuously driven quantum dot affected by phonons

D. E. Reiter
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Abstract

The interaction of a light field with a quantum-mechanical system can be studied in an optically controlled semiconductor quantum dot. When driven by a continuous light field switched on instantaneously, the quantum dot occupation performs Rabi oscillations. Unlike an atomic system, the quantum dot is coupled to phonons, which leads to a damping of the Rabi oscillations. Here we model the time-resolved probe spectra to monitor these dynamics and study the influence of phonons on the spectra. The spectra consist of up to three peaks, similar to the Mollow-triplet known from quantum optics. We develop analytical equations within a rate equation model and show that they agree excellently with a numerical solution using a well established correlation expansion approach.

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D. E. Reiter. 2017-02-09. Time-resolved pump-probe signals of a continuously driven quantum dot affected by phonons. https://doi.org/10.1103/physrevb.95.125308

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