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TT: Fachverband Tiefe Temperaturen

TT 41: Superconducting Qubits (joint session QI/TT)

TT 41.11: Talk

Wednesday, March 20, 2024, 12:15–12:30, HFT-FT 131

Automated Characterization of Superconducting Quantum Processors — Konstantin Lehmann, •Adam Lawrence, Timo van Abswoude, Thorsten Last, and Adriaan Rol — Orange Quantum Systems B.V., Elektronicaweg 10, 2628 XG Delft, NL

The qubit count of transmon-based quantum processors is steadily increasing. Some processors are already beyond the 100-qubit scale [1]. In order to keep the development cadence of those quantum processors high, the test time per qubit need to be strongly reduced from days to hours. Therefore, we developed the library SCQT and its accompanied automation framework GRACE.

SCQT is based on the open-source measurement framework Quantify [2]. It supports adaptive measurements to reduce the size and duration of large experiments. SCQT is designed with processor-scaling in mind and is equipped for features like tuneable couplers, leakage correction and cross-talk correction.

GRACE extracts the quantities of interest from the calibration protocols and transitions smoothly to the next protocol. This level of automation allows to take longer measurements without supervision, thereby reducing significantly the effort to characterize transmon-based quantum processors.

[1] https://www.ibm.com/quantum/roadmap

[2] https://quantify-os.org/

Keywords: superconducting qubit tools; characterization; automation; transmon