Researchers at Simon Fraser University have developed a groundbreaking silicon-based quantum device that can be controlled both optically and electrically, marking a significant step forward in quantum computing technology.

This work builds on SFU's earlier research on silicon colour centres, including proposals made in 2020 and integration with nanophotonic devices in 2022, with the latest advancement adding electrical control.

The new diode nanocavity devices enable electrical control over silicon color center qubits, specifically T centers, which enhances device capabilities and paves the way for scalable quantum computers.

Silicon's potential for rapid scaling and integration with existing semiconductor manufacturing processes makes it a promising material for quantum technology.

Previously, control of T centers was achieved solely through optical means using lasers; the addition of electrical control increases functionality and scalability.

This breakthrough opens the door for larger quantum processors and the integration of these devices into practical quantum computers, which could revolutionize fields such as chemistry, medicine, cybersecurity, and materials science.

This development signifies progress in aligning quantum technology with current silicon-based manufacturing, potentially accelerating deployment.

The researchers published their findings in Nature Photonics, demonstrating the first electrically-injected single-photon source in silicon, a critical milestone toward scalable quantum computers.

The project was a collaborative effort involving SFU's Silicon Quantum Technology Lab, Photonic Inc., and other partners, with plans to expand research in the UK.

Photonic Inc., co-founded by SFU researchers, aims to develop commercial-scale quantum computers and networks, actively expanding its research efforts.

This advancement aligns with global efforts by governments and tech giants like IBM, Google, and Microsoft to develop scalable quantum computing technology.

Canada's government and major tech companies are heavily investing in quantum computing to establish leadership in this transformative field.