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…
Jesus 101
After coming back from the APS March Meeting 2023 in Las Vegas, I went to The National Museum of Western Art at Ueno, Tokyo, with two friends, Li and Zhu…
General relativity: MIT video lectures
From middle July 2022, I started studying general relativity (GR) again. I use three resource at the same time: 1) Prof. Scott Hughes’s MIT’s physics graduate course 8.962, 2) the textbook…
Summary for 2022 — Non Physics
I. Book, movies and TV dramas This year, I've read many books that are related to psychology. One of my motivation is following the motto of Socrates, know yourself! A…
Summary for 2022 — Physics
It's a good time to summarize my 2022 journey of apprentice as a theoretical physicist. It's my first year of doctoral course (in a Japanese university, the first year doctoral…
Decide to keep a diary finally
One of the original motivations of this blog is to record my graduate school study and everyday life in Japan. For example, I had tried to use this site to…
Philosophy I read last year（去年读过的哲学）
I want to summarize the philosophy I had read during year 2021. I wanted to post this in June last year; eventually it comes this year. I plan to write…
Spacetime Physics by Taylor and Wheeler
Many failures and difficulty in understanding general relativity, quantum field theory, and conformal field theory I tried to follow the video lectures of the MIT course 8.962 about general relativity…