I am a PhD Candidate in Computer Science at King’s College London. My research focuses on understanding faults in Hybrid Quantum–Classical architectures and on developing foundational methods for robust and reliable quantum software. In particular, I investigate applications of quantum information theory to the testability and verification of quantum and hybrid software architectures.
My first journal paper — and a journal-first one — “A Taxonomy of Real Faults for Hybrid Quantum-Classical Software Architectures” has been accepted at ACM TOSEM! ✨😄
With the popularity of Hybrid Quantum-Classical architectures, particularly noisy intermediate-scale quantum (NISQ) architectures in the gate-based quantum computing paradigm, comes the need for quality assurance methods tailored to their specific faults. In this study, we propose a taxonomy of faults in gate-based Hybrid Quantum-Classical architectures accompanied by a dataset of real faults in the identified categories. To achieve this, we empirically analysed open-source repositories for fixed faults. We analysed over 5000 closed issues on GitHub and pre-selected 529 of them based on rigorously defined inclusion criteria. We selected 133 faults that we labelled around symptoms and the origin of the faults. We cross-validated the classification and labels assigned to every fault between two of the authors. As a result, we introduced a taxonomy of real faults in gate-based Hybrid Quantum-Classical architectures. Subsequently, we validated the taxonomy through interviews conducted with eleven developers. The taxonomy was dynamically updated throughout the cross-validation and interview processes. The final version was validated and discussed through surveys conducted with an independent group of domain experts to ensure its relevance and to gain further insights.
@article{bensoussan2025hybrid,title={A Taxonomy of Real Faults for Hybrid Quantum-Classical Software Architectures},author={Bensoussan, A. and Jahangirova, G. and Mousavi, M.R.},journal={ACM Transactions on Software Engineering and Methodology},year={2025},publisher={Association for Computing Machinery},doi={10.1145/3788677},url={https://dl.acm.org/doi/10.1145/3788677},}
