Posts by Collection

blogs

Solutions for Fiber Bundle Exercises

Solutions for Exercises · 2026 · View PDF View HTML

A concise set of solutions to the fiber bundle exercises from Liang and Zhou’s Differential Geometry and General Relativity, Volume III.

Solutions for Lie Groups and Lie Algebra Exercises

Solutions for Exercises · 2026 · View PDF View HTML

A concise set of solutions to the exercises from Liu’s Lie Groups and Lie Algebras for the Physicists.

Solutions for Group Theory Exercises

Solutions for Exercises · 2026

A concise set of solutions to the exercises from Chen et.al’s Abstract Algebra.

The Selection Rule and Group Representation Method in Electron-Phonon Interaction

theoretical derivation and group meeting · 2026 · View PDF View HTML

From the representation theory’s perspective to determine the forbiddenness of a transition.

Topology and Homology Theory

Study Blog · 2026

Study blog of topology and homology theory, including high-quality exercise solutions and unique viewpoints from personal point of view.

gadgets

The Sakura Bulletin

AI-generated English graded reader by Opus 5 · 2026

A graded reader novel built around the CET-4 word list, following a high school newspaper club’s fight to survive.

portfolio

Portfolio item number 1

Short description of portfolio item number 1

Portfolio item number 2

Short description of portfolio item number 2

projects

spTemplate

open source LaTeX template · 2025 · View Github Repository

LaTeX class templates for cleaner, simpler main.tex files.

Second Quantization (in Chinese)

Lecture notes for seminar. · 2025 · View PDF

Lecture notes for seminar.

Group Theory Notebook (in Chinese)

Open source notebook · 2025 · Overleaf View PDF

My personal group theory notebook.

Classical Variational Principle (in Chinese)

Lecture notes for seminar. · 2026 · View PDF

Lecture notes for seminar.

NanoBTE

Closed source software · 2026 · View Github Repository

A deterministic finite-volume solver for the non-gray phonon Boltzmann transport equation under the relaxation-time approximation.

spGroup

Web application · 2026 · View Web App

A web app for computing symmetry-allowed electron-phonon selection rules from crystallographic space groups.

TikZ Feynman Editor

Open source software · 2026 · View Github Repository

A visual editor for drawing Feynman diagrams and exporting them as SVG images or LaTeX code.

Visual Typist

Open source software · 2026 · View Github Repository

A visual LaTeX equation editor with a WYSIWYG canvas and synchronized LaTeX source, available for macOS and in the browser.

publications

NanoBTE: Fast Iterative Solution of the Phonon Boltzmann Transport Equation for Nanoscale Heat Transport

arXiv preprint, 2026

NanoBTE is a fast finite-volume solver for the non-gray phonon Boltzmann equation, supporting complex geometries, band-resolved properties, and CPU/GPU parallelization.

Chen, H., Lin, H.-X., Tian, X., Chen, H., Zhang, J., Yan, S., Shao, H., Wu, Y., Liu, J., and Zhang, H. (2026). "NanoBTE: Fast Iterative Solution of the Phonon Boltzmann Transport Equation for Nanoscale Heat Transport." arXiv preprint arXiv2607.03226.

reports

Raman Spectroscopy Experiment and Group Theory Analysis (in Chinese)

experiment cource final report · 2025 · Overleaf View Article (in English)

I discussed the application of group theory to analyze the vibrational eigenmodes of molecules — using CCl₄ as an example — and their Raman spectroscopy spectra.

Topological Data Analysis and Its Applications in Computational Physics and Chemistry

group meeting · 2026 · Overleaf View PDF

I discussed the main homology theories used in topological data analysis, especially persistent homology and GLMY theory.

Exciton-Photon Interaction from the Ground Up

group meeting · 2026 · Overleaf View PDF

I discussed the exciton-phonon interaction and its mathematical structure from the perspective of Hamiltonian matrix elements.

Exciton-Photon Interaction — From a Symmetry Point of View

interview · 2026 · Overleaf View PDF

Using representation theory, I discussed the symmetry-forced zero points of electron-phonon interaction.

talks

Talk 1 on Relevant Topic in Your Field

Published: March 01, 2012

This is a description of your talk, which is a markdown file that can be all markdown-ified like any other post. Yay markdown!

Tutorial 1 on Relevant Topic in Your Field

Published: March 01, 2013

More information here

Talk 2 on Relevant Topic in Your Field

Published: February 01, 2014

More information here

Conference Proceeding talk 3 on Relevant Topic in Your Field

Published: March 01, 2014

This is a description of your conference proceedings talk, note the different field in type. You can put anything in this field.

teaching

Teaching experience 1

Undergraduate course, University 1, Department, 2014

This is a description of a teaching experience. You can use markdown like any other post.

Teaching experience 2

Workshop, University 1, Department, 2015

This is a description of a teaching experience. You can use markdown like any other post.

toolkits

How to Install `MATLAB`, `Mathematica`, `Java`, `C/C++`, and `R` Language Kernels in Jupyter Notebook

Tutorial · 2026

Learn how to install and use MATLAB, Mathematica, Java, C/C++, and R language kernels in Jupyter Notebook for multi-language support, with step-by-step guides and practical tips.

How to Set Up Overleaf Locally