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The role of acoustic phonons for Rabi oscillations in semiconductor quantum dots |
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| Authors: | A Krügel VM Axt T Kuhn P Machnikowski A Vagov |
| Institution: | 1. Institut für Festk?rpertheorie, Universit?t Münster, Wilhelm-Klemm-Str. 10, 48149, Münster, Germany 2. Institute of Physics, Wroclaw University of Technology, Wybrze?e Wyspiańskiego 27, 50-370, Wroclaw, Poland 3. Department of Physics, University of Antwerpen, Groenenborgerlaan 171, 2020, Antwerpen, Belgium |
| Abstract: | The damping of Rabi oscillations in quantum dots as well as the renormalization of the carrier-light coupling, due to the interaction with longitudinal acoustic phonons are studied as a function of temperature and laser pulse parameters. Numerical results are obtained by using a correlation expansion within the density matrix theory. The observed features like a non-monotonous dependence of the damping on the pulse duration are characteristic for the strongly non-Markovian nature of the phonon coupling in these systems. The results can be well interpreted on the level of a perturbation expansion in the carrier-phonon interaction. PACS 78.67.Hc; 63.20.Kr; 03.65.Yz |
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