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Q: Fachverband Quantenoptik und Photonik
Q 41: Poster – Quantum Technologies II & Laser Technology
Q 41.14: Poster
Mittwoch, 4. März 2026, 17:00–19:00, Philo 2. OG
Parallel cryogenic setups for scalable quantum computation with surface ion traps — •Marco Schmauser1, Marco Valentini1, Eric Kopp1, Michael Pasquini1, Jakob Wahl1, Andreas Wendl2, Philip Holz3, Josef Schupp3, Philipp Schindler1, Thomas Monz1,3, and Rainer Blatt1 — 1Inistitut für Experimentalphysik, Universität Innsbruck, Austria — 2kiutra, Munich, Germany — 3Alpine Quantum Technologies, Innsbruck, Austria
Trapped-ion (TI) quantum systems are promising candidates for future quantum computing applications. TI devices based on macroscopic linear Paul traps are practically limited to a maximum of 30 ions. Microfabricated surface traps are an alternative approach that allow for improved scalability though modular design, integrated optics, and additional electronic trap layers.
Here we present the implementation of parallel cryogenic setups, one rack-based, and one table-based for rapid testing and characterization of such surface traps. Each setup features an independent cryostat able to cool to a base temperature of 5K within 12 hours. Trap integration is realized via a standardized socket interface, reducing trap exchange time to approximately 2 hours. The setups feature 128 (100) DC electrodes, 6 RF electrodes, 21 in-vacuum fibers for 40Ca+ wavelengths, and two independent resonators to enable concurrent axial and radial shuttling. The rack-based setup additionally features a novel hermetic interface to facilitate rapid swapping of vacuum chambers without venting, thus minimizing experimental downtime.
Keywords: Trapped ions; Cryogenic setup; Rack integration; Surface traps; Quantum computation