The overall objective of this 4-year project is to demonstrate that spin qubits are a compelling platform for scaling to very large numbers of qubits. QLSI comprises the demonstration of four essential ingredients:

  • fabrication and operation of 16-qubit (16Q) quantum processors based on industry-compatible semiconductor technology
  • high-fidelity (>99%) single- and two-qubit gates, read-out and initialization with these devices in a lab environment
  • a quantum computer prototype, with online open access for the community, targeting 8qubits (8Q) available online, and integrating such a high-quality quantum processor into a high-performance computing environment
  • documentation of the detailed requirements to address scalability towards large Systems >1000qubits

QLSI lays the European foundation for industrial-scale implementations of semiconductor quantum processors. The project represents the ramping up of a dedicated effort across all leading European groups in the field of spin qubits to develop complete processor systems that are capable of reaching the level of thousands of qubits - a level widely believed to be necessary to show the potential for universal, error-corrected quantum computing.


Funded under H2020-EU.1.2.3., Grant agreement ID: 951852

Project partners

  • Technische Universität Delft, Die Niederlande
  • Centre National De La Recherche Scientifique Cnrs, Frankreich
  • Interuniversitäts-​Mikro-Electronik-Zentrum, Belgien
  • Netherlands Organisation for Applied Naturresearch TNO, Die Niederlande
  • Fraunhofer Gesellschaft zur Förderung Der Angewandten Forschung e.V., Deutschland
  • Kobenhavns Universitet, Dänemark
  • University College London, UK
  • Forschungszentrum Julich GmbH, Deutschland
  • Universitat Basel, Schweiz
  • Universität Twente, Die Niederlande
  • Hitachi Europe Limited, Großbritannien
  • Universitat Konstanz, Deutschland
  • Bull Sas, Frankreich
  • STMicroelectronics SA, Frankreich
  • Infineon Technologies Dresden GmbH & Co. KG, Deutschland
  • Quantum Motion Technologies Ltd., Großbritannien
  • Soitec SA, Frankreich

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