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Researchers at Tohoku University and NIMS have successfully integrated charge sensing and high-frequency reflectometry into zinc oxide devices, creating essential tools for developing semiconductor spin qubits. This advancement addresses a critical detection challenge in ZnO quantum dots, positioning the material as a viable alternative to silicon or gallium arsenide for scalable quantum computing architectures. The team now aims to demonstrate electron spin readout and measure coherence times to validate the platform's potential for practical quantum processors.

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Researchers Demonstrate Building Blocks for Zinc Oxide Spin Qubits

The Quantum InsiderOctober 1, 20263 min read

Insider Brief PRESS RELEASE — Researchers at Tohoku University, in collaboration with the National Institute for Materials Science (NIMS) and the University of Tokyo, have taken an important step toward semiconductor quantum computing using zinc oxide (ZnO). The team successfully demonstrated charge sensing, high-frequency reflectometry, and the formation of a few-electron double quantum dot in […]

Researchers demonstrated charge sensing, high-frequency reflectometry and a few-electron double quantum dot in zinc oxide, establishing tools for developing semiconductor spin qubits. An integrated sensor and radio-frequency circuit enabled faster detection of electron charge changes, while the device confined individual electrons in two quantum dots. The team next…

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