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Spin Qubits Silicon Quantum Computing

Temperature-dependent Mollow triplet spectra from a single quantum dot: Rabi frequency renormalisation and sideband linewidth insensitivity

arXiv
Authors: Yu-Jia Wei, Yu He, Yu-Ming He, Chao-Yang Lu, Jian-Wei Pan, Christian Schneider, Martin Kamp, Sven Höfling, Dara P. S. McCutcheon, Ahsan Nazir

Year

2013

Paper ID

31389

Status

Preprint

Abstract Read

~2 min

Abstract Words

102

Citations

N/A

Abstract

We investigate temperature-dependent resonance fluorescence spectra obtained from a single self-assembled quantum dot. A decrease of the Mollow triplet sideband splitting is observed with increasing temperature, an effect we attribute to a phonon-induced renormalisation of the driven dot Rabi frequency. We also present first evidence for a non-perturbative regime of phonon coupling, in which the expected linear increase in sideband linewidth as a function of temperature is cancelled by the corresponding reduction in Rabi frequency. These results indicate that dephasing in semiconductor quantum dots may be less sensitive to changes in temperature than expected from a standard weak-coupling analysis of phonon effects.

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  • We investigate temperature-dependent resonance fluorescence spectra obtained from a single self-assembled quantum dot.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1312.4577 [2] arXiv https://arxiv.org/abs/1312.4577 [3] Publisher https://arxiv.org/abs/1312.4577

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