Basic Information
- rongge (at) tsinghua.edu.cn
- Office
- Shuangqing Complex Building B519
Rongge Xu
Postdoctoral Fellow, Yau Mathematical Sciences Center, Tsinghua University
Research Areas
Many-body quantum systems, quantum gravity, topological phases, category theory, and higher algebra.
Education
- 2013-2017, B.S., University of Minnesota Twin Cities.
- 2018-2025, Ph.D., Fudan University.
Research Summary
Rongge Xu works on topological phases, categorical algebra, and quantum many-body systems. His recent representative work uses categorical descriptions of one-dimensional gapped phases with Abelian onsite symmetries and 2-Morita equivalence of condensable algebras to compare different algebraic presentations of the same topological data. This perspective is useful for understanding how boundary theories, condensation processes, and topological orders are related, especially when ordinary symmetry labels are not fine enough to distinguish phases.
Representative Publications
- L. Guo, Y. Yan, R. Xu, J. Li, C. Zeng, “Zero-Bias Conductance Peaks Effectively Tuned by Gating-Controlled Rashba Spin-Orbit Coupling,” Phys. Rev. Lett. 126 (2021) 057701.
- R. Xu, Z.-H. Zhang, “Categorical Descriptions of 1-dimensional Gapped Phases with Abelian Onsite Symmetries,” Phys. Rev. B 110 (2024) 155106.
- R. Xu, H. Yang, “2-Morita Equivalent Condensable Algebras in Topological Orders,” Chinese Phys. Lett. 42 (2025) 070710.