About me

1999-2003: B.Sc. (in physics) at SCGY, University of Science and Technology of China

2003-2006: M.Phil. (in math) at Dept of Math, University of Science and Technology of China

2006-2011: Ph.D. (in math) at Dept of Math, Harvard University

2011-2012: Postdoctoral Fellowship at Dept of Math, Northwestern University

2012-2014: Assistant Professor at Dept of Math and Stat, Boston University

2014-present: Professor at Dept of Math and YMSC, Tsinghua University

2016: Gold Medal Award for Morningside Medal of Mathematics , for works toward constructing the quantization of B-twisted topological string field theory and on solving the "Landau-Ginzburg Mirror Symmetry Conjecture".

I had also several interesting visiting positions and less interesting administrative positions before. Find more in my Curriculum Vitae

I am a fan of pingpong and basketball. We have weekly pingpong and basketball event at Tsinghua. Join us!

Research

I work in the field of mathematical physics and am interested in algebraic and geometric aspects of quantum field theory and string theory.

See Reserach Summary for descriptions of my previous works and Research page for further details.

[ New ] Video Lecture Series: B-model

Introduction to classical and quantum aspects of B-model. Mini-course in Spring 2025 at CUHK. Videos available on b站：量子鬼道

Books/Notes

Quantum Mechanics and Geometry (draft Mar 2025) . Part III is expected to appear on Jan 2026.
线性代数（网页版） . 2024年秋. 线性代数（香蕉空间版） . 线性代数（pdf版）
Classical Mechanics and Geometry
This full version of this book has been published by International Press of Boston. If you like this book, here are the links. Thanks for your support on this book series.
---- Book home: International Press of Boston .
---- 国内订购：孔夫子 , 天猫
Electromagnetism and Geometry
This full version of this book has been published by International Press of Boston. If you like this book, here are the links. Thanks for your support on this book series.
---- Book home: International Press of Boston .
---- 国内订购：孔夫子 , 天猫
Ordinary Differential Equations
This full version of this book has been published by International Press of Boston. If you like this book, here are the links. Thanks for your support on this book series.
---- Book home: International Press of Boston .
---- 国内订购：孔夫子 , 天猫
Introduction to Algebraic Topology (1st update: draft June 2020)
几何与对称（讲义） (1st and last update: draft Dec 2018) . 另外分享一篇单独写的短文：几何与对称（短文） (Sep 2024) . 香蕉空间的几何与对称（网页版）

See Teaching page for more.