Demonstration of 99.9% single qubit control fidelity of a silicon quantum dot spin qubit made in a 300 mm foundry process

IEEE

23 Aug

Published in IEEE 2024 SNW

N Dumoulin Stuyck, MK Feng, WH Lim, S Serrano Ramirez, CC Escott, T Botzem, T Tanttu, CH Yang, A Saraiva, A Laucht, S Kubicek, J Jussot, S Beyne, B Raes, R Li, C Godfrin, D Wan, K De Greve, AS Dzurak

Abstract

Commercially viable quantum computing will require large numbers of high-quality qubits. Therefore, leveraging the extensive capabilities of conventional CMOS technology is expected to accelerate the development of a fault-tolerant quantum computer. Here we report on the highest single-qubit control fidelity of 99.9% for any Si/SiO2 spin qubit fabricated in a 300 mm wafer process. This result represents an important milestone towards a large-scale silicon quantum processor on a single chip.

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Demonstration of 99.9% single qubit control fidelity of a silicon quantum dot spin qubit made in a 300 mm foundry process

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