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About me
About me
Hi, I am Kaifeng Bu, a tenure-track assistant professor in the Department of Mathematics at Ohio State University. Before that, I was a postdoc in the Department of Physics at Harvard University, working together with Arthur Jaffe from 2019 to 2024. I received both my B.S. (2014) and Ph.D. (2019) from the School of Mathematical Sciences at Zhejiang University.
My research lies at the intersection of quantum information, physics, computer science, and mathematics. Key areas of focus include quantum information and computation, quantum machine learning, mathematical physics, quantum Fourier analysis, quantum probability and statistics, and quantum resource theory.
If you are interested in joining my group (as graduate students or postdocs), please send an email (including your CV) to bu.115@osu.edu
New work in 2025
New work in 2025
Quantum Higher Order Fourier Analysis and the Clifford Hierarchy, with Weichen Gu, and Arthur Jaffe, arXiv:2508.15908
Graphical Calculus for Fermionic Tensors, with Yuanjie Ren, and Andreas Bauer, arXiv:2508.03976
Decoded Quantum Interferometry Under Noise, with Weichen Gu, Dax Koh, and Xiang Li, arXiv:2508.10725
Efficient Measurement of Bosonic Non-Gaussianity, with Bikun Li, arXiv:2507.10272
Quantum locally recoverable code with intersecting recovery sets, with Weichen Gu, and Xiang Li, http://arxiv.org/abs/2501.10354
New publication in 2025
New publication in 2025
Quantum Higher Order Fourier Analysis and the Clifford Hierarchy, with Weichen Gu, Arthur Jaffe, accepted by PNAS
Hardness of measuring magic resource, with Roy Garcia, Gaurav Bhole, Liyuan Chen, Haribabu Arthanari, Arthur Jaffe, Physical Review Research 7 (3), 033271 (2025)
Stabilizer Testing and Magic Entropy via Quantum Fourier Analysis, with Weichen Gu, Arthur Jaffe, Commun. Math. Phys. 406, 236 (2025)
Wasserstein Complexity of Quantum Circuits, with Lu Li, Dax Koh, Arthur Jaffe, Seth Lloyd ,J. Phys. A: Math. Theor. 58, 265302 (2025)
Extremality of stabilizer states, Physical Review A,112,032420 (2025)
Displaced Fermionic Gaussian States and their Classical Simulation, with Xingjian Lyu, J. Phys. A: Math. Theor. 58,295301 (2025)
Quantum Ruzsa Divergence to Quantify Magic, with Weichen Gu, Arthur Jaffe, IEEE Transactions on Information Theory 71, 2726 (2025)
Magic resource can enhance the quantum capacity of channels, with Arthur Jaffe, Phys. Rev. Lett. 134, 050202 (2025)
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