Summary
- LUMI-IQ will begin with a 150-physical-qubit Halocene H4 system in 2027 and receive further upgrades in 2028 and 2029.
- The final configuration is intended to support up to nine logical qubits and integrate with LUMI-AI’s HPC and AI infrastructure.
- The September announcement adds a defined upgrade path to a procurement first disclosed in July rather than representing a new supplier selection.
IQM Quantum Computers has detailed the three-stage upgrade path for the LUMI-IQ quantum system being installed at CSC’s data centre in Kajaani, Finland, extending the programme through 2029.
IQM Quantum Computers was selected in July to provide LUMI-IQ. The new announcement sets out how the system will progress from a 150-physical-qubit platform towards logical-qubit operations and tighter integration with the LUMI-AI computing environment.
The first installation is scheduled for 2027 and will use IQM’s Halocene H4 platform with 150 physical qubits and early quantum error-correction capability.
A second upgrade in 2028 is intended to reduce logical error rates and introduce real-time error correction. IQM then plans to install a Halocene H5 system in 2029.
The company says the completed configuration will support fast real-time feedback and logical-qubit operations, with up to nine logical qubits under specified error-correction configurations.
Logical qubits use multiple physical qubits together with error-correction techniques to make quantum calculations more reliable. The practical challenge is that greater reliability comes at the cost of substantial additional hardware and control complexity.
LUMI-IQ will be hosted at CSC – IT Center for Science’s new Kajaani data centre and integrated into the LUMI-AI environment. The programme is jointly funded by the EuroHPC Joint Undertaking and the participating countries Finland, Czechia, Norway, and Poland.
Kajaani expands beyond conventional AI compute
The new upgrade plan adds another layer to a rapidly expanding compute site.
DataCentral has previously reported the €387.8m LUMI-AI contract and construction progress at the Kajaani AI Factory data centre.
LUMI-IQ is different from another accelerator deployment. Quantum computing introduces cryogenic, control, and specialist operating requirements that are distinct from the dense GPU clusters associated with AI and conventional high-performance computing.
The purpose of placing those systems together is integration. CSC intends researchers to be able to combine high-performance computing, machine learning, and quantum resources inside an infrastructure environment operated by the participating European institutions.
The staged approach also changes the operating model. Rather than accepting a single quantum system and treating it as a static laboratory installation, CSC will host successive platform upgrades as IQM advances its error-correction roadmap.
That creates a multi-year integration programme spanning hardware replacement, controls, software, networking, and the physical systems required to keep the quantum equipment operating within specification.
Neither IQM nor LUMI has disclosed the electrical load or cooling requirements for LUMI-IQ in the September material. Those omissions mean the project should not be compared with AI data centre capacity on the basis of megawatts.
Its infrastructure significance instead lies in the range of specialised computing equipment being concentrated at Kajaani.
The campus is becoming a European platform for conventional HPC, AI training and inference, and experimental quantum computing. That model requires more than purchasing processors. It requires facilities capable of supporting several generations of hardware, specialist technical teams, resilient connectivity, and an upgrade path that can operate over a period of years.
The ownership structure also gives the participating countries direct control of the system rather than relying exclusively on remote quantum services supplied from elsewhere.
The programme remains dependent on IQM delivering against a technology roadmap extending to 2029. The 2027 H4 installation is the first defined operational milestone, while later error-correction and logical-qubit capabilities remain future engineering objectives.
The September announcement is therefore best treated as an update to an existing procurement rather than a new project award. Its value is in defining how LUMI-IQ is expected to develop once installed and how closely the quantum platform will be connected with Kajaani’s expanding AI and HPC estate.
