Phonon-assisted decoherence and tunneling in quantum dot molecules

A. Grodecka-Grad, J. Förstner, Physica Status Solidi (C) 8 (2011) 1125–1128.

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Journal Article | Published | English
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Abstract
We study the influence of the phonon environment on the electron dynamics in a doped quantum dot molecule. A non-perturbative quantumkinetic theory based on correlation expansion is used in order to describe both diagonal and off-diagonal electron-phonon couplings representing real and virtual processes with relevant acoustic phonons. We show that the relaxation is dominated by phononassisted electron tunneling between constituent quantum dots and occurs on a picosecond time scale. The dependence of the time evolution of the quantum dot occupation probabilities on the energy mismatch between the quantum dots is studied in detail.
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Journal Title
physica status solidi (c)
Volume
8
Issue
4
Page
1125-1128
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Grodecka-Grad A, Förstner J. Phonon-assisted decoherence and tunneling in quantum dot molecules. physica status solidi (c). 2011;8(4):1125-1128. doi:10.1002/pssc.201000824
Grodecka-Grad, A., & Förstner, J. (2011). Phonon-assisted decoherence and tunneling in quantum dot molecules. Physica Status Solidi (C), 8(4), 1125–1128. https://doi.org/10.1002/pssc.201000824
@article{Grodecka-Grad_Förstner_2011, title={Phonon-assisted decoherence and tunneling in quantum dot molecules}, volume={8}, DOI={10.1002/pssc.201000824}, number={4}, journal={physica status solidi (c)}, publisher={Wiley}, author={Grodecka-Grad, Anna and Förstner, Jens}, year={2011}, pages={1125–1128} }
Grodecka-Grad, Anna, and Jens Förstner. “Phonon-Assisted Decoherence and Tunneling in Quantum Dot Molecules.” Physica Status Solidi (C) 8, no. 4 (2011): 1125–28. https://doi.org/10.1002/pssc.201000824.
A. Grodecka-Grad and J. Förstner, “Phonon-assisted decoherence and tunneling in quantum dot molecules,” physica status solidi (c), vol. 8, no. 4, pp. 1125–1128, 2011.
Grodecka-Grad, Anna, and Jens Förstner. “Phonon-Assisted Decoherence and Tunneling in Quantum Dot Molecules.” Physica Status Solidi (C), vol. 8, no. 4, Wiley, 2011, pp. 1125–28, doi:10.1002/pssc.201000824.
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