Freiburg 2024 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 55: Poster VI
Q 55.38: Poster
Donnerstag, 14. März 2024, 17:00–19:00, Tent B
Utilizing Integrated Single Photon Emitters on Waveguides for Testing Extended Quantum Theories — •Josefine Krause1, Mohammad Nasimuzzaman Mishuk1, Kabilan Sripathy1, Najme Ahmadi1, Sebastian Ritter1, Mostafa Abasifard1, Giacomo Corielli3, and Tobias Vogl1,2 — 1Friedrich Schiller University Jena, Institute of Applied Physics, Albert-Einstein-Straße 15, 07745 Jena — 2Technical University of Munich, TUM School of Computation, Information and Technology, Arcisstraße 21, 80333 München — 3Consiglio Nazionale delle Ricerche (IFN-CNR), Istituto di Fotonica e Nanotecnologie, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
Efficient utilization of quantum information processing, for example for satellite-based quantum communication, relies on the miniaturization and combination of components into compact, space-compatible structures. For this, we follow the hybrid approach of integrating quantum emitters hosted in two-dimensional materials onto a photonic chip containing femtosecond laser-written waveguides. The single photon source (SPS), which is a fluorescent defect in hexagonal boron nitride, operates at room temperature and has potential to outperform laser-based decoy quantum key distribution protocols with a higher data rate. The waveguides form a tunable three-path interferometer that offers to test the boundary of a fundamental postulate of quantum physics, being Born's rule, by measuring higher order interferences. Both this, and the purity of the SPS will be tested on a 3U CubeSat in microgravity as part of the QUICK3 mission.
Keywords: Waveguides; Single Photon Emitter; 2D Materials; Integrated Photonics; Satellite-Based Quantum Technologies