EU project to develop scalable silicon qubits

February 22, 2021 // By Jean-Pierre Joosting
EU project to develop scalable silicon qubits
Four year project to lay the foundation for industrial-scale implementation of semiconductor quantum processors.

The Fraunhofer Institute for Photonic Microsystems IPMS, together with European partners, is developing a scalable technology for silicon qubits for quantum computers. The QLSI project – "Quantum Large-Scale Integration with Silicon" – will develop a 16-qubit chip within four years, to lay the foundation for industrial-scale implementation of semiconductor quantum processors. The EU is funding the project with a total of 14.6 million euros.

Fraunhofer IPMS is part of the newly launched European project QLSI (Quantum Large-Scale Integration with Silicon), which aims to develop a scalable technology for silicon qubits for quantum computing. Silicon qubits can manipulated and read out quickly and are ideally suited for quantum computing due to their small size, high fidelity and compatibility with industrial manufacturing processes. Silicon qubits have been successfully demonstrated many times in the past. The project is now focusing on demonstrating a 16 qubit chip and developing a scalable technology for industrial implementation.

Within the four-year project, a consortium of 19 partners with complementary expertise is working together. Fraunhofer IPMS’ Center Nanelectronic Technologies contributes a 4000 m² clean room and its expertise in state-of-the-art, industry-compatible CMOS semiconductor fabrication on 300 mm wafer standard.

Picture: 
Nanostructuring for silicon qubits from the 300 mm CMOS clean room of Fraunhofer IPMS. Image courtesy of Fraunhofer IPMS.

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