Publications and Preprints
2026
- On the undecidability of quantum channel capacities
With Archishna Bhattacharyya and Arthur Mehta
To appear in FOCS 2026. Preprint: arXiv:2601.22471
2025
- Guess your neighbor's input: Quantum advantage in Feige's game
With Simon Schmidt, Sigurd A. L. Storgaard, and Michael Walter
Preprint: arXiv:2510.08484 - The NPA hierarchy does not always attain the commuting operator value
With Marco Fanizza, Larissa Kroell, Arthur Mehta, Connor Paddock, Denis Rochette, and William Slofstra
To appear in Quantum . Preprint: arXiv:2510.04943. Talk at QIP 2026 - A complete and natural rule set for multi-qutrit Clifford circuits
With Sarah Meng Li, Michele Mosca, Neil J. Ross, and John van de Wetering
Published in Proceedings of QPL 2025. Plenary talk at QPL 2025 - Quantitative quantum soundness for bipartite compiled Bell games via the sequential NPA hierarchy
With Igor Klep, Connor Paddock, Marc-Olivier Renou, Simon Schmidt, Lucas Tendick, and Xiangling Xu
Preprint: arXiv:2507.17006. Talk at QIP 2026 - Lifting the maximally-entangledness assumption in robust self-testing for synchronous games
With Matthijs Vernooij
To appear in Quantum . Preprint: arXiv:2505.05994
2024
- Robust self-testing for nonlocal games with robust game algebras
Preprint: arXiv:2411.03259 - Postselection technique for optical QKD with improved de Finetti theorems
With Shlok Nahar, Devashish Tupkary, Norbert Lütkenhaus, and Ernest Y.-Z. Tan
Published in PRX Quantum. Talk at Qcrypt 2024.
2023
- Positivity is undecidable in tensor-product of free algebras
With Arthur Mehta and William Slofstra
Published in Journal of the European Mathematical Society - Quantum delegation with an off-the-shelf device
With Anne Broadbent and Arthur Mehta
Published in Proceedings of TQC 2024. Talk at Qcrypt 2023 [video] & TQC 2024 [video]. - An operator-algebraic formulation of self-testing
With Connor Paddock, William Slofstra, and Yangchen Zhou
Published in Annales Henri Poincaré. Talk at QIP 2023 [video].