Tsinghua University
Office: 317 Jing Zhai
Email: rhzhaomailtsinghuaeducn
About Me
I am a joint postdoc at Caltech and Tsinghua University researching arithmetic geometry.From Fall 2024-Spring 2026, I am in residence at Tsinghua.
I was previously a graduate student at UC Berkeley, advised by Xinyi Yuan. Before that, I was an undergraduate at Princeton University. While at Princeton, I completed a senior thesis advised by Chris Skinner.
Here is my CV (last updated 1/10/2026).
For Spring 2026, I am:
- Co-Organizing the Caltech–Tsinghua Joint Colloquium.
Research
My research interests are algebraic number theory and arithmetic geometry. I am broadly interested in Arakelov geometry, abelian varieties, and Shimura varieties. I am interested in questions around heights on Shimura varieties and in particular their application to the Zilber–Pink conjecture, and the Existential Closedness Problem for the exponential function and uniformization maps of Shimura varieties.Papers
- Bialgebraic Varieties of the Gamma function, with Sebastian Eterović and Adele Padgett, 2025. [arXiv]
- Towards the Colmez Conjecture, 2025. [arXiv], to appear in Acta Arithmetica
- Algebraic Independence of Special Points on Shimura Varieties, with Yu Fu, 2024. [arXiv]
- Heights of Special Points on Quaternionic Shimura Varieties, 2023. [arXiv]
- Algebraic Varieties and Automorphic Functions, with Sebastian Eterović, International Mathematics Research Notices, 2025(4). [doi.org/10.1093/imrn/rnaf029]