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A modular RFSoC-based approach to interface superconducting quantum bits

Gebauer, Richard ORCID iD icon; Karcher, Nick; Sander, Oliver


Quantum computers will be a revolutionary extension of the heterogeneous computing world. They consist of many quantum bits (qubits) and require a careful design of the interface between the classical computer architecture and the quantum processor. Even single nanosecond variations of the interaction may have an influence on the quantum state. In this paper, we present the modular design of the FPGA firmware which is part of our qubit control electronics. It features so-called digital unit cells where each cell contains all the logic necessary to interact with a single superconducting qubit. The cell includes a custom-built RISC-V-based sequencer, as well as two signal generators and a signal recorder. Internal communication within the cell is handled using a modified Wishbone bus with custom 2-to-N interconnect and deterministic broadcast functionality. We furthermore provide the resource utilization of our design and demonstrate its correct operation using an actual superconducting five qubit chip.

Postprint §
DOI: 10.5445/IR/1000141553
Veröffentlicht am 29.12.2022
DOI: 10.1109/ICFPT52863.2021.9609909
Zitationen: 1
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Publikationstyp Proceedingsbeitrag
Publikationsmonat/-jahr 12.2021
Sprache Englisch
Identifikator ISBN: 978-1-66542-010-5
KITopen-ID: 1000141553
HGF-Programm 47.12.01 (POF IV, LK 01) Advanced Solid-State Qubits and Qubit Systems
Erschienen in 2021 International Conference on Field-Programmable Technology (ICFPT)
Veranstaltung IEEE International Conference on Field-Programmable Technology (FPT 2021), Online, 06.12.2021 – 10.12.2021
Verlag Institute of Electrical and Electronics Engineers (IEEE)
Seiten 1–9
Schlagwörter quantum computing, superconducting qubits, pulse measurements, signal generator, data acquisition, Pulse generation, Quantum bits, Quantum-classical interface, Quantum computing, FPGA, RFSoC, RISC-V
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