Скачать или смотреть Cemracs 2025 - Quantum computing hardware: cost of fault-tolerance

Welcome to this lecture from CEMRACS 2025 — the Center for Mathematical Studies and Advanced Research in Scientific Computing.

➡️ Scroll down for details about today’s speaker and talk.

Hosted at the CIRM in Marseille (France), CEMRACS is a major annual event that brings together researchers, PhD students, engineers, and HPC specialists to explore cutting-edge topics in applied mathematics, modelling, numerical analysis, and high-performance computing.

The 2025 edition, themed “Quantum Computing and Cryptography”, was co-organized by the French Competence Center for High-Performance Computing (CC-FR) along with several academic and institutional partners. This year, the program welcomed nearly 150 participants from 22 countries, illustrating the strong international dimension of the event.

This video is part of an open-access series providing full recordings of the lectures and courses delivered during CEMRACS 2025.

▶️ Lecture by Mazyar Mirrahimi

Recent breakthroughs in the control and readout of atomic and solid-state qubits have accelerated the global race toward building a practical quantum computer. While some approaches focus on demonstrating quantum advantage using noisy qubits, fully leveraging quantum computation ultimately requires fault-tolerant processors.

In such systems, qubits and logical gates must be continuously protected from noise through quantum error correction (QEC). Although the theoretical foundations of QEC have been developed since the mid-1990s, experimental implementations are only now taking shape in laboratories worldwide.

In this talk, Mazyar Mirrahimi reviews the main strategies being pursued toward error-corrected qubits, the state of ongoing progress, and several shortcut techniques designed to reduce the substantial hardware overhead required for QEC.

👉 More information: https://cemracs2025.math.cnrs.fr/en/

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