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Quantum Noise Characterisation for Reliable Software | Avner Bensoussan posted on the topic | LinkedIn
🚀 Our paper has been accepted at the 19th IEEE International Conference on Software Testing, Verification and Validation (ICST 2026). 📄 𝘛𝘰𝘸𝘢𝘳𝘥 𝘓𝘪𝘷𝘦 𝘕𝘰𝘪𝘴𝘦 𝘍𝘪𝘯𝘨𝘦𝘳𝘱𝘳𝘪𝘯𝘵𝘪𝘯𝘨 𝘧𝘰𝘳 𝘋𝘪𝘴𝘤𝘳𝘦𝘱𝘢𝘯𝘤𝘺 𝘈𝘯𝘢𝘭𝘺𝘴𝘪𝘴 𝘪𝘯 𝘘𝘶𝘢𝘯𝘵𝘶𝘮 𝘚𝘰𝘧𝘵𝘸𝘢𝘳𝘦 𝘌𝘯𝘨𝘪𝘯𝘦𝘦𝘳𝘪𝘯𝘨 🔗 https://lnkd.in/ehw2Mskw Noise remains a fundamental obstacle to reliable quantum software — yet current models are often static, coarse, and misaligned with real system behaviour. In this work, we introduce 𝒍𝒊𝒗𝒆 𝒏𝒐𝒊𝒔𝒆 𝒇𝒊𝒏𝒈𝒆𝒓𝒑𝒓𝒊𝒏𝒕𝒊𝒏𝒈, a lightweight and empirical approach to characterising noisy quantum systems. Our key idea: → leverage 𝒄𝒍𝒂𝒔𝒔𝒊𝒄𝒂𝒍 𝒔𝒉𝒂𝒅𝒐𝒘 𝒕𝒆𝒄𝒉𝒏𝒊𝒒𝒖𝒆𝒔 to build compact, updatable fingerprints of noise → enable efficient comparison of quantum states and platforms (e.g., Qiskit vs Cirq) → support practical workflows for 𝒕𝒆𝒔𝒕𝒊𝒏𝒈, 𝒅𝒆𝒃𝒖𝒈𝒈𝒊𝒏𝒈, and 𝒄𝒓𝒐𝒔𝒔-𝒑𝒍𝒂𝒕𝒇𝒐𝒓𝒎 𝒗𝒂𝒍𝒊𝒅𝒂𝒕𝒊𝒐𝒏 We implement this vision in SIMSHADOW, showing that fingerprints: • capture structured, interpretable noise patterns • reveal systematic cross-platform discrepancies • correlate with observable divergences in program outputs More broadly, this work bridges 𝒒𝒖𝒂𝒏𝒕𝒖𝒎 𝒊𝒏𝒇𝒐𝒓𝒎𝒂𝒕𝒊𝒐𝒏 𝒕𝒉𝒆𝒐𝒓𝒚 and 𝒔𝒐𝒇𝒕𝒘𝒂𝒓𝒆 𝒕𝒆𝒔𝒕𝒊𝒏𝒈, moving toward more reliable and portable quantum software systems.
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Avner Bensoussan | Avner Bensoussan
“𝑼𝒏 𝒎𝒂𝒍 𝒑𝒐𝒖𝒓 𝒖𝒏 𝒃𝒊𝒆𝒏” 🙂 Our work “A Taxonomy of Real Faults in Hybrid Quantum-Classical Architectures” has been accepted to the FSE 2026 Journal First track 🎉 The initial short version was rejected ~1.5 years ago—but that turned out to be 𝘢 𝘣𝘭𝘦𝘴𝘴𝘪𝘯𝘨 𝘪𝘯 𝘥𝘪𝘴𝘨𝘶𝘪𝘴𝘦. It gave me the chance to go much deeper, gather valuable feedback from multiple presentations, and develop a more mature version of the work. That journey led to a full paper in TOSEM, and now to presenting this stronger version at FSE. 📄 Paper: https://lnkd.in/enDPsETa 🔎 Read more about my work: https://lnkd.in/efQGE6J6 Looking forward to sharing it with the community—see you in Montreal!
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A Taxonomy of Real Faults for Hybrid Quantum-Classical Software Architectures | ACM Transactions on Software Engineering and Methodology | Avner Bensoussan
🎉 Excited to share that my first journal paper has been accepted at ACM TOSEM! 🌱 This paper is more than a publication—it reflects how much I’ve learned about research and communication along the way. Good research is more than results When I started this project—the first of my PhD—I thought success meant getting the methods right and producing solid results. That alone took about a year. What I didn’t anticipate was that learning how to explain why those results mattered would take just as long. I presented this work in very different contexts: in Oxford to quantum physicists and chemists, in Copenhagen to non-quantum software researchers, and in Montpellier to quantum algorithms experts. In each community, a few people with very different backgrounds paused to bridge their perspective with this work. That led to rich discussions. The most fascinating part was aligning our vocabularies and finding shared ground. After each conference, I reshaped the paper with these new perspectives in mind. 💭 At one conference, I met a professor I deeply admire. We jumped straight into a technical discussion. She assumed I had a similar background—and I didn’t pause to explain that while our areas are related, we approach problems differently. She eventually walked away saying my work felt neither theoretical nor practical. That moment stuck with me. It was frustrating, unsettling, and honestly quite disorienting, but it now guides how I explain results. Quantum software research is about communication The same challenge appeared during the review process. No reviewer questioned the methodology or results. Instead, feedback focused on framing, context, and narrative. Comparing the first version with the current one—shaped by reviews and discussions—the difference is massive. 🔗 I realized this isn’t a secondary skill. In interdisciplinary fields like quantum computing, communication is part of the research itself. This is especially true for quantum software research: still underexplored, yet crucial for moving from lab-scale demonstrations to industrial pipelines and real-world use cases. Building that bridge isn’t just about better hardware or algorithms—it’s about elegant software that smartly connects the two, layers of abstraction, fault understanding, and, above all, a shared language across communities. Interdisciplinary collaboration drives innovation Working across quantum physics, chemistry, and software engineering taught me that breakthroughs often happen at the intersections. When experts from different fields try to connect perspectives, new questions arise, assumptions are challenged, and insights emerge that wouldn’t have been possible within a single discipline. Each discussion shaped the paper and, more importantly, shaped how I think as a researcher. 🙏 Grateful to my supervisors and co-authors for their support. Excited—and a bit wiser—to enter my final PhD year. There’s a lot coming! https://lnkd.in/enDPsETa
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What a way to finish the year!! 🎉 Had a lot of fun guest lecturing in Prof. Mohammad Reza Mousavi’s Testing Module. Super exciting to present my work in depth and tease some very fresh results that… | Avner Bensoussan
What a way to finish the year!! 🎉 Had a lot of fun guest lecturing in Prof. Mohammad Reza Mousavi’s Testing Module. Super exciting to present my work in depth and tease some very fresh results that will be published soon 👀! Big thanks for the trust and guidance of my supervisors, and massive respect to the 3rd-year Bachelor and Master students for being there at the very end of the semester, in full exam-stress mode. I know the feeling — I was sitting exactly where you are a couple of years ago 😅 If nothing else, I hope I at least kept you awake with some quality memes ☕📈 Ending the year on a high note 🚀
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🇫🇷 First academic event in France since I left 11 years ago — and what a return! The Advanced Quantum Algorithms for Many-Body Systems workshop in Montpellier was fantastic. 🧠 Super sharp… | Avner Bensoussan
🇫🇷 First academic event in France since I left 11 years ago — and what a return! The Advanced Quantum Algorithms for Many-Body Systems workshop in Montpellier was fantastic. 🧠 Super sharp, state-of-the-art talks on quantum algorithms for many-body physics and chemistry. 🌿 Breaks in the botanical garden + real French cheese and natural wine… perfect setup for good science. 🤝 Great to catch up with the SEEQA crew, meet new people, and share my poster on Quantum Testability — paper coming soon! Huge thanks to the organisers for such a great event. Feeling inspired to connect more with the quantum community in France!