Quantum

Julien Camirand Lemire (Nord Quantique): One Cavity, One Error-Corrected Qubit

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 31/10/2026, 08:49:24 UTC.

Briefings

Nord Quantique, a Quebec-based spin-off of the Sherbrooke ecosystem, co-founded by Julien Camirand Lemire, utilizes bosonic codes to achieve quantum error correction with minimal qubit overhead. The company demonstrated GKP and Tesseract codes in early 2024 and 2025 respectively, achieving a quantum error correction gain that has more than doubled since 2024. Their roadmap targets error rates between 10^-7 and 10^-9 by 2032, with a four-qubit system entering operation in 2025. The technology relies on microwave photons trapped in superconducting cavities, operating at cryogenic temperatures.

Key points

• Nord Quantique uses bosonic codes with microwave photons in superconducting cavities to achieve quantum error correction without large qubit overhead.
• The company achieved a quantum error correction gain that has more than doubled since 2024, with GKP and Tesseract code demonstrations released in early 2024 and 2025 respectively.

Context

Nord Quantique is a Quebec-based quantum computing hardware company, a spin-off of the Sherbrooke ecosystem, founded in 2020. They operate in Canada with offices in Sherbrooke and Montreal, leveraging the local ecosystem for capital-efficient builds. Their research focuses on differentiated technology for quantum scaling, specifically error correction, and they are part of a broader industry trend moving toward systems with hundreds of thousands of qubits.

Limitations

Evidence is limited to a single interview with Julien Camirand Lemire, co-founder and CEO of Nord Quantique. The company's specific error rates, exact operational dates beyond the 2024-2025 demonstrations, and future scaling milestones beyond 2032 are not explicitly quantified in the transcript. The source does not provide details on the company's financial status, specific customer contracts, or the full scope of their multimode code capabilities beyond the named examples.

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