Quantum control of polaron states in semiconductor quantum dots

Details Quantum control of polaron states in semiconductor quantum dots Quantum control of polaron states in semiconductor quantum dots

2007-01-15

arxiv.org/abs/cond-mat/0701320v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

20 pages, 5 figures

Scientific paper

10.1088/0953-4075/40/11/S06

We study phonon-assisted dephasing in optically excited semiconductor quantum dots within the frameworks of the independent Boson model and optimal control. Using a realistic description for the quantum dot states and the phonon coupling, we demonstrate that such dephasing has a drastic impact on the coherent optical response. We employ optimal control theory to search for control strategies that allow to fight decoherence, and show that appropriate tailoring of laser pulses allows a complete control of the optical excitation despite the phonon dephasing.

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