Mainz 2026 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 66: Poster – Quantum Technologies III
Q 66.2: Poster
Thursday, March 5, 2026, 17:00–19:00, Philo 2. OG
Progress on Our Next-Generation Quantum Computing Setup — •James Rumbold1, Helin Özel1, Julian Wiener1, John Wolff1, Felix Stopp1,2, Jonas Vogel1,2, Björn Lekitsch1, 2, and Ferdinand Schmidt-Kaler1,2 — 1QUANTUM, Institut für Physik, Johannes Gutenberg-Universität Mainz — 2NeQxt GmbH
To further enhance the capabilities of trapped-ion quantum computing systems, hundreds of qubits with higher operational fidelities are required. In our next-generation quantum computer we plan to increase our qubit count up to 100 by implementing two independent computational zones, with each holding ten ions and enacting gates simultaneously. Our ion trap features 40 DC segments that can hold additional ion chains and perform transport operations, facilitating all-to-all connectivity. To improve the computational fidelities the setup will feature three layers of mu-metal shielding, no magnetic parts surrounding the vacuum chamber, and a redesigned addressing system for reduced crosstalk. The poster will present the current progress of the experimental system, including optical and electronical qubit control, as well as some preliminary characterisation results of the new components.
Keywords: segmented Paul trap; ion trap; quantum computing