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THU: Thursday Contributed Sessions

THU 13: Poster Session: Applications

THU 13.37: Poster

Thursday, September 11, 2025, 16:30–18:30, ZHG Foyer 1. OG

Stabilization of Quantum Dot to Atomic Transitions — •Hala Said1, Esteban Gómez-López1, Karol Winkler2, Jonathan Jurkat2, Moritz Meinecke2, Tobias Huber-Loyola2, Sven Höfling2, and Oliver Benson11Institut für Physik, Humboldt-Universität zu Berlin, 12489, Berlin, Germany — 2Technische Physik, University of Würzburg, 97074, Würzburg, Germany

Quantum dot-based single-photon sources (SPS) are promising candidates for scalable quantum networks due to their ability to generate bright, on-demand single photons with high purity [1]. Embedding quantum dots in micropillar cavities significantly enhances light extraction and improves collection efficiency, which is critical for practical quantum communication systems [2]. To enable long-distance quantum communication, interfacing these solid-state emitters with atomic systems such as cesium vapor cells is highly desirable, as atomic transitions provide stable and well-defined references for quantum memories and quantum repeater protocols [3]. In this work, we focus on tuning the emission of quantum dots to achieve resonance with the Cs D1 transition line. Our goal is to stabilize the quantum dot emission, enabling coherent interaction between single photons and atomic ensembles.

Keywords: quantum optics; single photon sources; quantum dots; quantum communication

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