Collaboration for robust and scalable quantum computing systems
Currently, Quantum Lab is jointly testing brand new quantum devices that improve the control and analysis of quantum systems. The result will be more reliable quantum calculations and scalable quantum computing systems.
Anna Mighetto
Posted on August 7, 2025
Testing couplings and interactions between qubits
At the center of the collaboration is QiB2 - a state-of-the-art 2-qubit superconducting quantum device developed by ConScience. This type of device is crucial for validating theories of qubit coupling (how qubits connect and interact), and for developing robust control and measurement methods. Understanding and controlling qubit coupling is one of the most important steps towards building the next generation of larger and more reliable quantum computers.
Better control of quantum bit behavior
The tests are made possible thanks to the Presto platform, developed by Intermodulation Products. Presto is a powerful microwave control and analysis tool, needed for advanced control of quantum systems. This type of control system is required to run and improve the quantum algorithms that will be used in the future in areas ranging from medical research to climate simulations and materials development.
Cooling down by 300 degrees
To minimize interference and get more reliable quantum computations, the quantum computer devices need to be cooled down to almost 300 degrees. Chalmers Next Lab's Bluefors LD refrigerator offers a stable cryogenic test environment in the range from 27°C down to -273.14°C.
Quantum Helpdesk provides service
The testing takes place in the test bed at Chalmers Next Lab, and our team supports the installation of the equipment, the measurement procedures and the data analysis.
Facts about the Presto platform - the 'nervous system' of quantum computing
A microwave-based wave generator and analyzer, such as the Presto platform, is an advanced instrument that creates and measures microwave signals (high-frequency electromagnetic waves). In quantum technology, it is used to control quantum bits (qubits). Presto sends control signals, reads the response and adjusts the signals in real time with a timing that is accurate down to billionths of a second! This enables advanced control of qubits and fast adjustment in case of disturbances, which is needed for more robust quantum systems and reliable quantum computing. In short, it acts as the 'nervous system' of quantum computing.