Mainz 2026 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 66: Poster – Quantum Technologies III
Q 66.14: Poster
Thursday, March 5, 2026, 17:00–19:00, Philo 2. OG
Addressed Raman Gates in a Shuttling-based Architecture — •Daniel Wessel1,2, Robin Strohmaier1, Tabea Stroinski1, Janis Wagner1, Ulrich Poschinger1,2, and Ferdinand Schmidt-Kaler1, 2 — 1QUANTUM, Institut für Physik, Johannes Gutenberg-Universität Mainz — 2neQxt GmbH
High-fidelity, individually addressed quantum gates are a central requirement for scalable trapped-ion quantum information processing. In this poster, I present the implementation of addressed Raman gates on 40Ca+ ions confined in a 3D segmented Paul trap, enabled by UV Raman beams and fast beam steering using acousto-optic deflectors (AODs). The 3D trap architecture provides enhanced optical access and precise control of ion positioning, while the segmentation allows for flexible ion shuttling and reconfiguration of computational zones [1]. We demonstrate site-selective Raman interactions using tightly focused UV beams at 395 nm, achieving high spatial discrimination between ions and minimizing crosstalk through optimized beam geometry and AOD-driven dynamic addressing. Our results show that AOD-based UV addressing is a powerful and scalable approach for parallel gate operations in advanced ion-trap architectures, and we outline pathways for extending this technique to larger arrays and modular quantum computing platforms.
[1] Kaushal, et al. AVS Quantum Sci. 2, 014101 (2020)
Keywords: Paul trap; Ion Trap; Addressed Gates; Quantum Computer