On 7th March 2025, the partners of the BMBF joint project “Competitive German Quantum Computer (CoGeQ)” discussed the current project status at the CiS Research Institute in Erfurt. The aim of the project, which was launched in 2022, is to produce a competitive German quantum computer. NV centers in diamond, which act as qubits, form the basis for this and allow a high integration density as well as operation at room temperature. AI applications with few physical qubits and low energy requirements have already been successfully demonstrated.
The partners are working together along the entire value chain to further develop the system. This ranges from the production of the diamond layers (University of Ulm, University of Kassel) to the implantation of the NV centers (University of Leipzig) and the development of the assembly and connection technologies of the quantum processor chip (CiS Research Institute) to the investigation of the qubit states (University of Ulm, University of Leipzig) and the implementation of a suitable software interface for online access to own quantum processor resources (SaxonQ). By the end of the year, the scientists and engineers will have developed the basis for a highly integrated system that allows the construction of a quantum computer that can be used as a mobile device without the need for complex cooling. All IP and property rights are also fully owned by European and German companies and institutes.
The CiS Research Institute is involved in various projects to transfer basic knowledge into industrially usable solutions and is also participating in high-profile events such as the Quantum Photonics 2025 trade fair in Erfurt in May and a technology workshop in autumn 2025 during the International Year of Quantum Science and Technology 2025.
