Junseo Lee

junseo.jpg
Update: Starting in Fall 2026, I will begin my PhD in Quantum Science and Engineering at Harvard University, where I will be affiliated with the Harvard Quantum Initiative and the Theory of Computation Group.

I work on theoretical computer science questions concerning quantum systems, particularly quantum learning theory and quantum complexity theory. I am also interested in related problems in theoretical physics and pure mathematics, including topics such as quantum gravity and quantum topology.

Before starting my PhD at Harvard, I worked as a Research Scientist at the SNU Institute of Computer Technology. Earlier, I completed my mandatory military service in South Korea as a Technical Research Personnel.

I received a Bachelor of Science in Electrical and Electronic Engineering from Yonsei University, supported by the Hyundai Motor CMK Scholarship. During my undergraduate studies, I was affiliated with the Quantum Information Theory Group at the SNU Research Institute of Mathematics, where I worked under the guidance of Dr. Kabgyun Jeong.

Curriculum Vitae (CV)
Profiles: LinkedIn, Google Scholar, X (formerly Twitter)
Email: harris (dot) junseo (at) gmail (dot) com
Selected Papers

Full publication list available here.

  • Optimal certification of constant-local Hamiltonians
    Junseo Lee†, Myeongjin Shin
    arXiv Preprint (2025).
    [PDF], [Property Testing Review]

  • Efficient learning of bosonic Gaussian unitaries
    Marco Fanizza, Vishnu Iyer, Junseo Lee†, Antonio Anna Mele, Francesco Anna Mele
    arXiv Preprint (2025).
    Contributed talk at QIP (2026).
    [PDF], [Slides], [QIP 2026]

  • Resource-efficient algorithm for estimating the trace of quantum state powers
     Myeongjin Shin✻, Junseo Lee✻, Seungwoo Lee, Kabgyun Jeong
    Quantum (2025).
    [PDF], [Journal], [Slide], [Poster], [Property Testing Review]

Recent Teaching