Junseo Lee
About Me
Hello! I’m Junseo Lee, also known as Harris.
I received my bachelor’s degree in Electrical and Electronic Engineering from Yonsei University, fully supported by the Hyundai Motor Foundation. I am currently fulfilling my mandatory national service through an alternative program, working as a research scientist in theoretical quantum computing. In addition, I have been continuously conducting research since my undergraduate years with the Quantum Information Theory Group at the Research Institute of Mathematics, Seoul National University. For more details, you can find my CV here.
Contact: I love discussing new research ideas and beyond, so feel free to reach out to me at harris.junseo(at)gmail.com for collaborations, questions, or just to connect. I’m always happy to hear from you!
You can also find me on LinkedIn and Google Scholar.
Research Interests
My main research interest lies in the theory of quantum computation. More broadly, I am also interested in theoretical computer science and quantum information.
Recently, my primary research focus has been on the following topics:
- Quantum learning theory: Sample, computational, and time complexity of learning quantum states, unitaries, channels, and processes under various constraints
- Quantum complexity theory: Topics such as the quantum PCP conjecture, quantum proof systems, and separations between QMA and NP
- Quantum property estimation and testing: Algorithms and complexity for estimating properties of quantum systems, including quantum entropy and distance measures
In the past, I have also worked on the following topics. While I am not actively pursuing them at the moment, I continue to find them fascinating:
- Quantum channel capacity and the quantum entropy power inequality
- Quantum continuous variable systems (bosonic Gaussian systems)
- Quantum machine learning and its applications
Service
- Journal reviewer for Physical Review Letters, Physical Review A, IEEE Transactions on Information Theory, and Annalen der Physik
- Conference reviewer for QTML 2025
- Selection committee member for the Quantum Internship Program (2024, 2025), hosted by the Korea Quantum Industry Center and the National Information Society Agency