Summary for 2023 — Physics
The effect of pandemic decayed away in 2023, so I attended many activities. This is the most dynamical year since the start of graduate school in 2019. I split the…
Summer holiday 2023 (continued)
This post continues talking about my summer holiday from August to September. I will talk about movies I watched and books I read. The Brothers Karamazov Ivan explains to Alyosha…
Summer holiday 2023
I finally had a chance to go back to my hometown in this summer after more than three years of the pandemic. After attending one international conference on Statistical Mechanics,…
《流浪者之歌》和《薄伽梵歌》
During the end of July and early August, I finish two books: Siddhartha and Bhagavad Gita, both related to Indian tradition and culture. Since I read in Chinese, the post…
Memoirs: Polyakov, Migdal and Polchinski
I finished reading several memoirs of physicists this month. Two are Russian-born physicists, Alexander Polyakov and Alexander Migdal. One is the author of a modern String Theory textbook, Polchinski. I…
威廉·布莱克的开放意识 (Blake’s Open Awareness)
Early this year, I was thinking about how a person should act in the world. Very implicitly, I feel the key word should be authentic, without knowing much about the…
Modern Classical Dynamics by Polyakov at Princeton: Symmetry, Lagrangian and Hamiltonian Mechanics
I was so exciting to find a series of lecture videos on YouTube about Classical Physics by Professor Alexander Polyakov early this year. From the course website here or here,…
Quantum Connection 2023 Summer School
Finally, the COVID19 fades away and many activities resume starting from this April. I flight to Sweden to attend a 2-week summer school called Quantum Connections in Sweden-11 from 11…
Life as an engineering process
Science creates a framework for understanding the material world, and Engineering creates tools for facilitating our lives based on this understanding. Two industrial revolutions have freed people from laborious work…
Kepler Problem
Today I suddenly realized that Kepler problem is easier than I thought. I first met this problem in high school physics class around 2010 and 2011, where we were simply…