Mainz 2026 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 67: Poster – Quantum Information
Q 67.12: Poster
Thursday, March 5, 2026, 17:00–19:00, Philo 2. OG
Integrated Quantum Information Processing with Novel Photonic Interfaces — •Louis L. Hohmann1,2, Jeldrik Huster1,2, 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)
Integrated quantum photonics has achieved significant progress in quantum computing, providing low-loss connections, a compact size, and high phase stability. These features enable reliable and space-efficient control of photonic qubits. Multipartite entangled states, such as GHZ and linear cluster states, are particularly important for quantum photonics as they serve as essential resource states for photonic quantum computing. We demonstrate our advancements in generating multipartite entangled states on a silicon-on-insulator photonic quantum circuit powered by spontaneous parametric down-conversion single-photon sources. The fiber-to-chip interface employs 3D-printed photonic wirebonds, a new, highly stable connection method between single-mode fibers and on-chip edge couplers, enabling a fully integrated quantum photonic circuit.
Keywords: photonic wirebonding; silicon photonics; photonic quantum computing; multipartite entanglement