Quantum Flagship consortium launches a project on silicon spin qubits

Quantum Flagship consortium launches a project on silicon spin qubits

A European consortium was launched today with the goal of scaling silicon quantum technologies. Named QLSI (Quantum Large-Scale Integration with Silicon), this four-year EU project, coordinated by CEA-Leti, will lay the foundation for the EU’s industrial-scale implementation of semiconductor quantum processors and position Europe as a global leader in quantum computing.

The project will focus on demonstrating that spin qubits are the leading platform for scaling to very large numbers of qubits.

The QLSI consortium features a dynamic team with a complementary skillset, bringing together experienced academics with deep knowledge of in silicon nanostructures and spin qubits, RTOs with silicon CMOS technology expertise, major international businesses in the semiconductor and computing industries, as well as Europe’s thriving quantum start-up sector. Each member brings state-of-the-art expertise in their area required to address the challenges of building a scalable quantum computer.

The partners have already realized many of the key advances in the field of silicon quantum. For instance, QuTech, a collaboration between TU Delft and TNO, implemented quantum algorithms in this platform and offers the first online open access quantum computer hosting a 2-qubit quantum chip based on silicon spins through Quantum Inspire. The QLSI consortium will take this principle to the next level with the demonstration of a 16-qubit chip, and will also make an 8-qubit chip available for external use through the Quantum Inspire open-access quantum cloud environment. 

Within the QLSI project QuTech will upgrade Quantum Inspire to include an 8-qubit spin quantum chip to demonstrate a high-quality quantum processor in a semi-industrial environment.

QLSI will pursue four essential results:

  • Fabrication and operation of 16-qubit quantum processors based on industry-compatible semiconductor technology
  • Demonstration of high-fidelity (>99 percent) single- and two-qubit gates, read-out and initialization with these devices in a lab environment
  • Demonstration of a quantum computer prototype, with online open-access for the community, integrating such a high-quality quantum processor in a semi-industrial environment (up to eight qubits available online), and
  • Documentation of the requirements to address important issue of scalability towards large systems >1,000 qubits.

19 QLSI members for a consortium fully dedicated to quantum hardware solution delivery:

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