Q2B25 Silicon Valley | Maud Vinet and Nicolas Daval, Quobly

Q2B25 Silicon Valley | Maud Vinet and Nicolas Daval, Quobly

by Maud Vinet and Nicolas Daval

Applied Sciences & Engineering Computing & Cybersecurity UYComputer scienceUYXNatural computing
🎙 Maud Vinet and Nicolas Daval 👥 6K 📅 January 7, 2026 ⏱ 21 min 👁 336 📄 expert opinion 🧭 2026-08-16
Available in: English (current) Français

Keywords

silicon spin qubitsquantum error correctionsemiconductor fabricationcryoelectronicsQSOI

Summary

Maud Vinet and Nicolas Daval from Quobly present their strategy for building an industrial pathway for silicon spin qubits. They emphasize the need for thousands of logical qubits and high-frequency logical operations to achieve practical quantum advantage. Quobly aims to leverage the semiconductor industry’s manufacturing capabilities to scale qubit production, similar to how transistors are mass-produced. They highlight a partnership with STMicroelectronics to adapt existing CMOS processes for quantum devices. Key milestones include the development of a cryo-CMOS readout system capable of measuring millions of qubits in 20 nanoseconds, and the establishment of a supply chain for isotopically purified silicon-28 wafers. They report statistical data on qubit yield and uniformity, with a first-electron yield of 70% and a sigma of 26 mV. Their roadmap targets thousands of logical qubits by 2032, with a focus on quantum error correction and system-level integration. They also mention an open-source toolbox for quantum algorithms and a partnership with Foxconn. The talk underscores the importance of achieving high fabrication yields (99.999%) for surface code efficiency.

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Critical Evaluation

Value of the Information & Strength of the Argument

The talk provides valuable insights into the industrial scaling of silicon spin qubits, a critical aspect often overlooked in quantum computing discussions. The argumentation is solid, grounded in concrete partnerships and experimental data. The speakers effectively argue that semiconductor fabs are essential for achieving the required scale and cost, and they support this with examples of yield statistics and cryo-electronics development. However, the presentation is somewhat promotional, and some claims, such as the cost per giga-quantum operation, lack detailed justification.

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Title / Content Match

The title accurately reflects the content, which focuses on Quobly's industrial pathway for silicon spin qubits.

Quality & Reliability

7/10

The talk provides a credible industrial roadmap for silicon spin qubits, backed by partnerships with STMicroelectronics and concrete milestones. However, it is largely a company presentation with limited independent verification and some claims lack detailed evidence.

Key Moments

Markers derived by PSI from the transcript: the creator did not define chapters.

Cited Sources

Concurring Sources

  • STMicroelectronics partnership announcement — Announcement of collaboration between Quobly and STMicroelectronics.

Contribution & Novelties

The talk provides an original perspective on scaling silicon spin qubits by leveraging existing semiconductor manufacturing infrastructure. It introduces specific milestones and partnerships that are not widely known, such as the supply chain for isotopically purified silicon-28 and the adaptation of CMOS image sensors for qubit readout. The emphasis on achieving high fabrication yields (99.999%) for quantum error correction is a novel contribution to the field.

Pour aller plus loin :

  • Silicon spin qubits — Overview of silicon spin qubit technology.
  • Quantum error correction — Fundamental concepts in quantum error correction.
  • CMOS — Complementary metal-oxide-semiconductor technology used in fabrication.

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Radar Profile

The radar profile shows balanced scores across information quantity, quality, and technical level, with a slightly lower reliability score due to the promotional nature of the talk. This indicates a technically rich presentation with some limitations in independent verification.

Reliability 6/10