Quantum 2025 – scientific programme

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MON: Monday Contributed Sessions

MON 14: QIP Implementations: Solid-State Devices I

MON 14.3: Talk

Monday, September 8, 2025, 17:00–17:15, ZHG002

Transmon-based thermometrics through integrated control of cryo-system parameters and automated quantum chip diagnostics — •Thorsten Last, Adam Lawrence, Koushik Kumaran, Gerben Erens, Kelvin Loh, and Adriaan Rol — Orange Quantum Systems, Elektronicaweg 2, 2628 XG Delft, NL

Thermometric analysis of superconducting qubits gives valuable insights into their environment such as the quantum processor, the I/O unit they are connected to, and the steadily increasing number of components required for scaling the cryogenic part of the quantum system. Analyzing their various decoherence channels and minimizing their thermal load becomes increasingly important. Hence, here we report on the development of an quantum chip test setup in which cryogenic and quantum control units are fully integrated to enable efficient and automated quantum chip testing and qualification. Purpose-built cryogenic and quantum control hardware systems are integrated under a unified control software platform which provides an application-specific operating system for quantum chip control. This integrated quantum test setup offers a practical advantage in the optimization of quantum chip characterization. The unified software interface allows for intelligent feedback between quantum control parameters and cryogenic control and monitoring. We will show that this enables novel features for the prevention, diagnostics and mitigation of a range of practical issues that can occur in cryogenic chip benchmarking, as well as providing a unified interface for quantum experiments involving cryogenic parameters for utility-scale quantum processors.

Keywords: Automated Test Equipment; Quantum Computing; Quantum Chip Testing