⚛️ Quantum in Practice #3: Quobly

🧠 About the Quantum in Practice series

Discover the Quantum in Practice series, a continuing program of technical trainings dedicated to exploring the technologies, tools, and real-world applications shaping today’s quantum-computing ecosystem.

Each session features a leading quantum technology provider presenting their platforms, showcasing demonstrations, and guiding participants through practical exercises that illustrate how quantum computing can be applied to industrial and scientific challenges.

The series is structured in two complementary parts:

• a technology introduction open to all audiences, offering an overview of the hardware, software, and potential use cases;
• and an expert segment, focused on solving a specific problem using the provider’s quantum-computing environment.

Whether you are a researcher, developer, or industry professional, Quantum in Practice offers a unique opportunity to gain hands-on insight, technical know-how, and a global perspective on the rapidly evolving quantum landscape.

📅 Session 3 – Quobly: Silicon Spin QPU model & noise with SpinPulse simulator

🗓 Date: Wednesday June 3rd, 2026
🕓 Time: 14:00 – 16:00 CET
📍 Format: Online (Webex)
🎙 Speakers: Marta Brzezinska is a Quantum Hardware Theory Expert at Quobly. She holds a PhD in condensed matter physics, specializing in topological states of matter, and completed a postdoc in computational physics at EPFL. After spending several years working on machine learning in the biotech sector, she returned to physics to apply her expertise in numerical modelling to quantum technologies. At Quobly, she focuses on noise-accurate modelling of silicon spin qubits to simulate realistic QPUs and develop optimized pulse-level strategies.

👨‍💻 Presentation Summary

« Spin qubits are emerging as a strong candidate for fault-tolerant quantum computing, offering long coherence times and compatibility with industrial semiconductor manufacturing. However, achieving high-precision control remains a challenge due to the inherent noise in solid-state devices, making the development of accurate numerical tools and effective noise-mitigation strategies essential.

This talk is structured in two parts. First, I will introduce the fundamentals of spin physics in silicon, providing a pedagogical overview of the platform’s key advantages and bottlenecks. I will particularly focus on the qubit architecture and addressing strategies being developed at Quobly.

Second, I will introduce SpinPulse, an open-source Python library designed to bridge the gap between abstract quantum circuits and their physical hardware implementation. SpinPulse enables the transpilation of quantum circuits into realistic pulse-level control sequences and provides a framework for noise-accurate simulations. I will conclude with a live demonstration showcasing SpinPulse’s capabilities and illustrating how key performance metrics, such as gate fidelities, can be extracted from simulations. »

🧠 Software Used

GitHub repository: https://github.com/quobly-sw/SpinPulse

Preprint: https://arxiv.org/pdf/2601.10435

⚛️ About Quobly

Quobly is a pioneer in the development of a fault-tolerant quantum computer based on semiconductor qubits. With a breakthrough method, Quobly addresses both techno-scientific challenges as well as industrial production, paving the way for mass production of the millions of qubits essential for practical, large-scale quantum computers. Based in Grenoble, the startup is the result of 15 years of collaborative research between internationally recognized RTOs, CEA Leti and CNRS. Founded in 2022, Quobly has brought together a team of experts from the semiconductor industry and distinguished researchers in quantum technologies. In 2023, Quobly made headlines with a seed round of 19 million euros, establishing a new record for seed funding of a European startup in the quantum sector. 

Today, Quobly employs +100 people.  

👉 The Quantum in Practice series is organized by CC-FR in partnership with the Teratec initiative TQCI.

🎙Stay Connected

This training opens the Quantum in Practice series — a recurring program to bring together leading quantum actors and the research and industrial communities.
Follow our upcoming sessions with other major players (Quandela, Alice&Bob…) and keep exploring the future of quantum technologies in practice.