| The dynamics of strongly confined laser driven semiconductor quantum dots coupled to phonons is studied theoretically by calculating the time evolution of the reduced density matrix using the path integral method. We explore the cases of long pulses, strong dot-phonon and dot-laser coupling and high temperatures, which up to now have been inaccessible. Although Rabi oscillations of the density matrix are suppressed due to phonon induced dephasing, we find that the dephasing rate is a non-monotonic function of the laser field and that it becomes smaller at larger fields leading to a remarkable revival of the Rabi oscillations. This revival is of a general nature which for the type of systems studied here occurs for all temperatures and carrier-phonon coupling strengths. |
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