Mainz 2026 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 29: Poster – Quantum Technologies I
Q 29.10: Poster
Dienstag, 3. März 2026, 17:00–19:00, Philo 2. OG
Integrated Photonic Chips for Quantum Network Applications — •Tim Engling1,2, Jonas C. J. Zatsch1,2, Jeldrik Huster1,2, Louis L. Hohmann1,2, Shreya Kumar1,2, and Stefanie Barz1,2 — 1Institute for Functional Matter and Quantum Technologies, University of Stuttgart, 70569 Stuttgart, Germany — 2Center for Integrated Quantum Science and Technology (IQST), 70569 Stuttgart
Realizing quantum networks requires generating, manipulating, and measuring photonic qubits at network nodes. Additionally, quantum channels connecting different network nodes and an interface between quantum channel and network node are required.
Integrated photonics based on a silicon-on-insulator offers a versatile and robust platform for networked quantum applications because of efficient qubit state manipulation and photon generation via four-wave mixing. Between nodes low-loss quantum channels can be realized using single-mode fibers.
Here, we present our advances in generating single photons and preparing entangled states directly on a chip. Additionally, we present methods for interfacing qubit states between the node and the channel. With our approach, we can transmit maximally entangled qubits with high fidelity between two integrated photonic chips. This is an important step in implementing quantum network protocols.
Keywords: Quantum Optics; Integrated Photonics; Quantum Networks