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Resonance-fluorescence spectral dynamics of an acoustically modulated quantum dot

Daniel Wigger, Matthias Weiß, Michelle Lienhart, Kai Müller, Jonathan J. Finley, Tilmann Kuhn, Hubert J. Krenner, and Paweł Machnikowski
Phys. Rev. Research 3, 033197 – Published 27 August 2021

Abstract

Quantum technologies that rely on photonic qubits require a precise controllability of their properties. For this purpose hybrid approaches are particularly attractive because they offer a large flexibility to address different aspects of the photonic degrees of freedom. When combining photonics with other quantum platforms like phonons, quantum transducers have to be realized that convert between the mechanical and optical domain. Here, we realize this interface between phonons in the form of surface acoustic waves (SAWs) and single photons, mediated by a single semiconductor quantum dot exciton. In this combined theoretical and experimental study, we show that the different sidebands exhibit characteristic blinking dynamics that can be controlled by detuning the laser from the exciton transition. By developing analytical approximations we gain a better understanding of the involved internal dynamics. Our specific SAW approach allows us to reach the ideal frequency range of around 1 GHz that enables simultaneous temporal and spectral phonon sideband resolution close to the combined fundamental time-bandwidth limit.

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  • Received 17 May 2021
  • Revised 2 July 2021
  • Accepted 9 August 2021

DOI:https://doi.org/10.1103/PhysRevResearch.3.033197

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

General PhysicsCondensed Matter, Materials & Applied PhysicsAtomic, Molecular & Optical

Authors & Affiliations

Daniel Wigger1,*, Matthias Weiß2,3, Michelle Lienhart2, Kai Müller4, Jonathan J. Finley4, Tilmann Kuhn5, Hubert J. Krenner2,3, and Paweł Machnikowski1

  • 1Department of Theoretical Physics, Wrocław University of Science and Technology, 50-370 Wrocław, Poland
  • 2Lehrstuhl für Experimentalphysik 1 and Augsburg Centre for Innovative Technologies (ACIT), Universität Augsburg, 86159 Augsburg, Germany
  • 3Institute of Physics, University of Münster, 48149 Münster, Germany
  • 4Walter Schottky Institut, Technische Universität München, 85748 Garching, Germany
  • 5Institut of Solid State Theory, University of Münster, 48149 Münster, Germany

  • *daniel.wigger@pwr.edu.pl

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Vol. 3, Iss. 3 — August - October 2021

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