Quantum 2025 – wissenschaftliches Programm

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WED-ID: Industry Day

WED-ID 7: Quantum Enabling II

WED-ID 7.4: Vortrag

Mittwoch, 10. September 2025, 16:25–16:45, ZHG104

Automated cryogenic test platform for benchmarking superconducting quantum processors — •Thorsten Last, Adam Lawrence, Koushik Kumaran, Gerben Erens, Kelvin Loh, Garrelt Alberts, and Adriaan Rol — Orange Quantum Systems B.V., Elektronicaweg 2, 2628 XG Delft, The Netherlands

Scaling transmon-based quantum processors beyond 100 qubits remains a challenge, especially as traditional R&D methods struggle to keep pace due to scalability limits. Achieving this demands improvements in reproducibility, yield, and low component variability. To support these process aspects, an industry-grade qubit manufacturing cycle must be paired with high-throughput testing and metrology to maintain a high development cadence. Here we introduce an automated cryogenic test system designed for high-throughput characterization of superconducting quantum processors and which can test 150-qubit devices within a 10-day cycle. Its fully integrated cryogenic and quantum control hardware enables advanced diagnostics and feedback. Critical device parameters are automatically extracted across multiple domains such as readout circuits, properties of transmons and tunable couplers, crosstalk, and qubit fidelities, using a graph-based automation protocol that dynamically sequences tests and extracts key metrics. In addition, the system can also provide thermometric analysis of qubits to assess environmental interactions and cryogenic scalability because as system complexity grows, identifying and mitigating thermal decoherence becomes critical.

Keywords: Automated Test Equipment; Superconducting qubits; Benchmarking of quantum processors; Quantum Device Engineering Cycle