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Impact of acoustic phonons on the dynamics of the exciton-biexciton system in quantum dots and quantum-dot microcavity systems

Temperature resonance tuning of a quantum-dot micropillar under optical excitation and electrical read-out.

The project comprises experimental and theoretical investigations to gain insight into the non-linear and non-markovian dynamics of excitons and biexcitons in quantum dots.
Systems with and without microresonators will be analyzed. Applying photocurrent spectroscopy and an advanced path-integral method we aim at a comprehensive study of the coherent dynamics of excitonic complexes confined in single self-assembled quantum dots. The studies comprise also investigations on the coherent evolution of coupled quantum dot – microcavity systems via electrical readout.

Partners: Prof. Dr. V. M. Axt, Institute of Theoretical Physics III, University of Bayreuth, Germany Prof. Dr. M. Kamp, Technische Physik, University of Würzburg, Germany

Funded by: German Research Foundation, Grant-No.: Re2974/5-1


A. Camele and  S. Reitzenstein, Non-Markovian features in semiconductor quantum optics: quantifying the role of phonons in experiment and theory, Nanophotonics, 20180222, ISSN (Online) 2192-8614 (2019)

M. Strauss et al., Wigner Time Delay Induced by a Single Quantum Dot, Phys. Rev. Lett., 122, 107401 (2019)

W. W. Chow and S. Reitzenstein, Quantum-optical influences in optoelectronics—An introduction, Applied Physics Reviews 5, 041302 (2018)

S. Kreinberg et al., Quantum-optical spectroscopy of a two-level system using an electrically driven micropillar laser as a resonant excitation source, Light: Science & Applications 7, 41 (2018)

S. Kreinberg et al.,Emission from quantum-dot high- microcavities: transition from spontaneous emission to lasing and the effects of superradiant emitter coupling, Light: Science & Applications e17030 (2017)

M. Strauß et al., Resonance fluorescence of a site-controlled quantum dot realized by the buriedstressor growth technique, Appl. Phys. Lett. 110, 111101 (2017)

M. Strauß et al., Photon-statistics excitation spectroscopy of a single two-level system, Phys. Rev. B 93, 241306(R) (2016)


P. Gold, M. Gschrey, C. Schneider, S. Höfling, A. Forchel, M. Kamp, S. Reitzenstein, „Single quantum dot photocurrent spectroscopy in the cavity quantum electrodynamics regime“, Phys. Rev. B 86, 161301(R) (2012)

A. Vagov, M.D. Croitoru, M. Glässl, V.M. Axt and T. Kuhn, “Real-time path integrals for quantum dots: Quantum dissipative dynamics with superohmic environment coupling”, Phys. Rev. B 83, 094303 (2011)

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