QSolid: quantum computer prototype is accessible through JUNIQ
November 18, 2025
Milestone Reached: External Users Gain Access to the QSolid Quantum Computer for the First Time
Jülich, 17 November 2025 – Scientists at Forschungszentrum Jülich, together with their partners from the QSolid consortium, have achieved a significant project milestone: the project team has successfully integrated the prototype of a quantum computer into the Jülich Supercomputing Centre’s infrastructure, known as JUNIQ. This marks an important step toward establishing a comprehensive German quantum ecosystem.
Just three and a half years after the project’s kick-off, the prototype of a system-integrated quantum computer is being made available to external users for an initial two-week test phase starting on 17 November 2025. “It is an outstanding achievement by our team to have succeeded in building a complete prototype from scratch. From the chip upwards, it consists of hardware developed at Forschungszentrum Jülich. In addition, another prototype will be launched in January. The feedback from our first users will now be crucial to further optimise the quantum computer,” explains Prof. Dr. Frank Wilhelm-Mauch, coordinator of QSolid.
The computer, currently operating with a capacity of 10-qubits, will be accessible via the JuDoor cloud platform. The term qubit, short for quantum bit, refers to the fundamental unit of quantum information.
Close Cooperation among Project Partners Leads to a Successful System Integration
The development and integration of the software stack, a collection of functional software components, was achieved through close collaboration between research institutions and industrial partners. The companies Qruise and Eviden, key providers in the fields of quantum firmware and high-performance computing, supplied the necessary software components, while Forschungszentrum Jülich carried out the professional system integration. “On the path from a physics experiment to a full prototype, we must always keep an eye on the compatibility and interplay of the components. This is often underestimated in research,” says Dr. Paolo Bianco, head of the system engineering team at Forschungszentrum Jülich.
The industrial partners ParTec, ParityQC, and HQS Quantum Simulations will be the first users outside Jülich’s infrastructure to participate in the two-week test run. This pilot phase will soon be followed by another one using updated software. Hardware improvements are also planned: the team led by Prof. Dr. Rami Barends (Forschungszentrum Jülich) will soon replace the current quantum chip with another even more powerful version.
ParityQC’s contribution to the development of the QSolid prototype
- Parity Twine: Algorithmic building blocks (such as the Quantum Fourier Transform and spin Hamiltonian propagators), adapted specifically to the QSolid hardware and achieving record efficiency.
- Coordination of software stack testing and integration: ParityQC played a central role in coordinating the testing and integration of the quantum software stack within JUNIQ.
- Development of real-world use cases: Our team is currently working on use cases that leverage the QSolid hardware, including accelerated NMR spectrum simulations -developed together with our partners HQS Quantum Simulations and the PGI12 and JSC departments from FZ Jülich.
A Strong Signal for the ‘High-Tech Agenda Germany’
Just two weeks after the launch event of the ‘High-Tech Agenda Germany’, initiated by the Federal Ministry for Research, Technology and Space (BMFTR), QSolid’s success marks a significant momentum. The research project, with a total budget of €76.3 million, demonstrates that German scientists already contribute to shaping European cutting-edge research in a key technology area of the agenda. “The system integration serves as a blueprint for developing a German quantum computer. From a technical perspective, it represents an ideal starting point for the High-Tech Agenda Germany of the Federal Ministry for Research, Technology and Space,” states Wilhelm-Mauch.
Contact details
Institution
Forschungszentrum Jülich
Project coordinator
Prof. Dr. Frank Wilhelm-Mauch
Institution
EURICE GmbH
Contact
Marlena Jakobs
Position
Communications Manager
QSolid key data
Acronym
QSolid
Title
Quantum Computer in the Solid State
Project duration
January 2022 – December 2026
Budget
€ 76.3 million (of which 89.8 % is funded by the BMFTR)
Partners
Forschungszentrum Jülich, Fraunhofer IZM und IPMS, Karlsruhe Institute for Technology, Leibniz IPHT, ParityQC, HQS Quantum Simulations, Rosenberger, Ulm University, Physikalisch-Technische Bundesanstalt, Qruise, University of Stuttgart, FU Berlin, IQM, University of Konstanz, University of Cologne, Heinrich-Heine University Düsseldorf, Supracon, ParTec, Racyics, AdMOS, LPKF Laser & Electronics, MKS Atotech, s+c / Eviden, Globalfoundries, CiS Forschungsinstitut für Mikrosensorik, Zurich Instruments
Website
X
https://www.linkedin.com/showcase/qsolid
YouTube
https://www.youtube.com/@qsolid
BMFTR framework programme: “Quantum technologies – from basic research to market”
The QSolid project is part of the framework programme entitled “Quantum technologies – from basic research to market”. Coordinated by the Federal Ministry of Research Technology and Space (BMFTR), the programme combines the goals of the German Federal Government in relation to the development of quantum technologies:
- Developing the quantum technology research landscape
- Creating research networks for new applications
- Establishing industrial competitiveness through lighthouse projects
- Ensuring security and technical sovereignty
- Shaping international collaboration
- Getting Germany’s population involved
More information (in German): www.quantentechnologien.de/qt-in-deutschland/programm.html
