MCSquare · Developing Multi-Core Silicon-Based Quantum Processors

Silicon technology was the key to transforming classical computing into a massive industry. Could it play a similar role in quantum computing? Silicon qubits have several attractive features and can rely on a mature industry that has already mastered the intricacies of scaling. However, while scientific advances in silicon qubit technology have been encouraging, progress has been modest on the commercial front. This is the consequence of a rift between the techniques of the semiconductor industry and the requirements of quantum computers. At Siquance, we close this gap thanks to a ground-breaking semiconductor approach: Fully Depleted Silicon On Insulator (FDSOI) technology. FDSOI technology enables the fabrication of high-quality qubits in a scalable and reproducible manner. Now, we advance these developments to the market. This project aims at delivering an FDSOI-based quantum processor demonstrator with a novel 4X4 multi-core architecture.