Freiburg 2024 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 60: Quantum Computing and Simulation I
Q 60.8: Talk
Friday, March 15, 2024, 12:45–13:00, Aula
Multi-Band Matching Network for a Microwave Surface-Electrode in a High Fidelity Trapped-Ion Quantum Processors — •Axel Hoffmann1, Florian Ungerechts2, Rodrigo Munoz2, Janina Bätge2, Teresa Meiners2, Brigitte Kaune2, Dirk Manteuffel1, and Christian Ospelkaus2,3 — 1Institut für Hochfrequenztechnik und Funksysteme, Leibniz Universität Hannover, Appelstr. 9A, 30167 Hannover, Germany — 2Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany — 3Physikalisch-Technische Bundesanstalt, Bundesallee 100,38116 Braunschweig, Germany
Trapped-ion quantum processors with integrated microwave conductors for near-field quantum control are a promising approach for scalable quantum computers. To reduce error sources and allow high fidelity it is not only the microwave electrode integrated in the processor chip that has to be designed carefully. The connection to the source must as well be efficiently designed to enable error reduction. Different approaches to match integrated and external sources to the quantum processors microwave electrode are presented. Here, the reduction of error sources due to inherent electromagnetic behavior and sensitivity to fabrication tolerances are the main focus. The main problem sources and methods to overcome them are discussed. These include electromagnetic simulations and measurement routines.
Keywords: quantum information processing; trapped ions; microwave quantum engineering; High Fidelity Quantum Processors; QCCD architecture