- Nov 15, 2024
I was creating my first GitHub Action. According to the official documentation, I should commit the node_modules to the repo or generate a script that bundles the whole node_modules if I want to create a JavaScript action. I think this is not good practice, so I try to find another way.
- Oct 10, 2024
I was briefly introduced to Grassmann numbers when I studied quantum field theory. I then had the natural question of how we can formally define them. In this article, I went with my intuition and tried to answer this question.
- Sep 10, 2024
In general relativity, people usually choose one of the two major metric signatures. However, in certain cases, the imaginary time convention can be more convenient. Here is one of such cases: the derivation of the metric in Poincaré coordinates for the anti-de Sitter space.
- Jul 1, 2024
The smallest wave packet in the lowest Landau level exists, and is a Gaussian wave packet. This turns out to be related to the coherent state of the harmonic oscillator.
- Jun 30, 2024
The partition function of a hydrogen atom diverges (only considering bound states). However, we can regularize it to get finite answers. Different regularizations give the same result. They largely agree with the physical arguments for the case of the hydrogen atom at room or cold temperature, but this should be considered a mere coincidence. The results from regularized partition functions cannot generally be trusted.
- Feb 21, 2024
While you are asleep, indicate that on your Discord and GitHub user status.
- Jan 8, 2024
Use nmcli to connect to eduroam in UCSB without using the configuration assistant tool provided by eduroam.