This is a note for the book-reading seminar of QFT, chapter 2, David Tong. The new thing I learn from this book is non-relativistic field theory.

This is a note for the reading of the 2nd yellow book by Nagaosa.

This is a note for the book-reading seminar of Quantum Phase Transition chapter 5, Subir Sachdev.

我要在这张纸上堆起一个小土堆

把我的稚嫩和爱都埋进去

（作于22岁生日前夜）

This is the note of my summer research after my junior year，the reference is the note of HH Tu,TENSOR NETWORKS (SS2021) Lecture 10&11。

This is the code for calculating the partition function of 2D Ising model, using TRG(Tensor Renormalization Group) algorithm. The notes of this method might be updated in the future.

This note is originally from review article arXiv:1008.3477v2. Notice: This note is written in Chinese.

Python 3 OOP（1）

This is a note in Chinese.

介于之后可能在物理科研过程中的编程面对对象的运算封装，且因为我浅薄无比的Python 3 知识，决心下苦工夫学习这一系列的知识。本文主要是依据Dusty Phillips所写的Python 3面向对象编程一书所写笔记，希望不会咕咕咕。