SPINNING – Diamond spin-photon-based quantum computer

On the way to applied quantum computers: In the “SPINNING” project, 28 experts from science and industry are working on a compact, scalable quantum processor based on spin qubits in diamond that can be connected to classical computers. With this approach, the project aims for an important contribution to the German quantum technology ecosystem.


Quantum computers have the potential to solve computational problems that classical computers can only solve with simplifications, approximations, or in very long computing times. The computing power depends on the central hardware element, the qubit. Although nowadays there are various approaches to realize qubits and quantum computers, their development is still in an experimental stage. Therefore, innovative approaches for compact and scalable quantum processors are crucial on the way to a reliable application of quantum computers.

Scalable, hybrid quantum processor 

The project partners of “SPINNING” are working on a design that features unprecedented connectivity and flexible configurations. In addition, the quantum processor is able to operate with low cooling requirements and thus may be implemented in close proximity to classical computer systems.


Fraunhofer IAF, based in Freiburg, is leading the “SPINNING” consortium consisting of six universities, two non-profit research institutions, five industrial companies (SMEs and spin-offs), and fourteen associated partners.

All participants are highly active in the field of pre-competitive hardware, firmware, and software development.

  • Fraunhofer Institute for Applied Solid State Physics IAF (coordinator)
  • Fraunhofer Institute for Integrated Systems and Device Technology IISB
  • Forschungszentrum Jülich GmbH
  • Karlsruhe Institute of Technology (KIT)
  • University of Konstanz
  • Heidelberg University
  • Technical University of Munich
  • Ulm University
  • Diamond Materials GmbH, Freiburg im Breisgau
  • NVision Imaging Technologies GmbH, Ulm
  • Qinu GmbH, Karlsruhe
  • University of Stuttgart
  • Quantum Brilliance GmbH, Stuttgart
  • Swabian Instruments GmbH, Stuttgart
  • 14 associated Partners from science and industry

Learn more about the partners and their work in the project.


The German Federal Ministry of Education and Research funds the “SPINNING” project within the program quantum technologies – from basic research to market (grant agreement number: 13N16209).