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:
- CEA-Leti – development and fabrication of spin qubits
- TU Delft/QuTech – materials development and multi-qubit control
- CNRS – demonstration of spin qubits
- IMEC – significant technological developments aiming at spin qubits
- TNO/QuTech – Spin qubit full stack demonstrator
- Fraunhofer institutes IPMS & IAF – significant technological developments aiming at spin qubits
- University of Copenhagen – demonstration and characterization of spin qubits http://www.qdev.dk
- UCL – physics experience and charge-and-spin properties of Si nanostructures
- FORSCHUNGSZENTRUM JULICH / FZJ – demonstration of spin qubits
- University of Basel – physics experience and charge-and-spin properties of Si nanostructures
- University of Twente – physics experience and charge-and-spin properties of Si nanostructures www.utwente.nl/quantum
- Hitachi – physics experience and charge-and-spin properties of Si nanostructures
- University of Konstanz – theoretical simulations and modelling of spin qubits and their properties https://www.burkard.uni-konstanz.de
- IHP (Leibniz-Institut) – development of Si-based quantum materials for spin qubits
- ATOS – development of quantum validation platform https://www.atos.net/qlm
- STMicrolectronics – development of quantum validation platform
- Infineon Dresden – development and fabrication of spin qubits
- Quantum Motion – design and validation of spin qubit devices and architecture
- Soitec – significant technological developments aiming at spin qubits