We are excited to announce that OrangeQS Juice was deployed at the Ando Lab, part of the University of Cologne. The open-source framework runs on a rack-mounted ‘Juice Box’ computer and will be used to control equipment in the lab used for transmon qubit experiments.
OrangeQS team in the Ando Lab at the University of Cologne
OrangeQS Juice at the Ando Lab
Ando Lab is testing Juice for cQED experiments with transmon qubits and resonators. They are particularly interested in circuits where the Josephson junction is made out of a topological insulator, rather than the typical aluminium oxide based junctions.
At the moment, Juice has been used with Leiden Cryogenics and Bluefors dilution refrigerators. As a first step, the Ando Lab plans to develop a backend for Oxford refrigerators. If this work is open sourced, the Ando Lab would become the first external contributor to Juice.
They are also interested in using Juice’s data management capabilities. On the fridge side an example is to store magnet data and pressures and correlate it with the fridge temperature for diagnostics and maintenance. But ultimately the focus lies on tracking and improving device performance.
About OrangeQS Juice
OrangeQS Juice is an open-source operating system that provides a unified control center for quantum R&D and production workflows. It brings system monitoring, measurement control, and data analysis together in a clear dashboard environment that can be accessed and controlled remotely by multiple users.
OrangeQS Juice was developed as an operating system for the high-throughput OrangeQS MAX quantum chip test equipment. It is now an essential building block of our OrangeQS FLEX systems for quantum R&D labs.
The operating system was deployed to AQT, QuTech and Chalmers Next Labs. Since 2026 it has been made available open-source, including a new forum where users can find and support each other.
About the Ando Lab
The Ando Lab focuses on solid state physics, studying the properties of materials such as electrical conduction and magnetism. Their research centres on topological matter, a class of materials with potential applications in future information technologies.
At the University of Cologne, they operate advanced facilities to support this work. Their goal is to deepen the understanding of topological matter and contribute to the foundations of next generation technologies.
Join the Conversation
Stay up to date on the latest deployments and development updates by joining the Juice Community or the OrangeQS Juice channel on the Unitary Foundation Discord. For more information, visit the OrangeQS Juice webpage.
