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yshoji-hep

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High energy particle physicist. I mainly work on vacuum decay processes in QFT and dark matter. My favorite languages are Rust and Mathematica.

Funding Links: https://github.com/sponsors/YShoji-HEP

GitHub Sponsors Profile

Hi there!
I work on high energy particle physics, writing papers and codes every day.
I am a rust enthusiast and have my own libraries for scientific calculation.
They were originally just for myself, but I found some of them will be useful for others.
Some are for general debugging, some are snippets like fitting and ODE solver, others are more scientific.
I will refine the codes and upload them one by one.
Projects
dbgbb
Efficient debugging framework using a notebook.
The project includes

dbgbb
ArrayObject
BulletinBoard

Mathematica library

4D spherical harmonics and vector spherical harmonics (in preparation)

Rust library

ODE solver (in preparation)
B-spline (in preparation)

About myself
The main interests of mine are summarized below.
Vacuum Decay of the Universe
Super-cooled water is liquid water below 0°C. It is a meta-stable state, meaning that it immediately turns into ice when it is disturbed. It is realized when water is cooled down slowly without disturbance.
Our Universe has a history of about 14 giga years, which started as a very hot universe and has been cooled down to 2.7 Kelvin. The Universe has experienced several phase transitions and reached a locally stable minimum. However, the question is whether this is really the lowest minimum or not. Just like super-cooled water, it is possible that the Universe can still "decay" into another phase, which we call the vacuum decay.
It is actually one of the scenarios that our Universe can end. I work on both theoretical framework and phenomenological application of the vacuum decay process.
ELVAS is the code to calculate the lifetime of our Universe assuming the standard model of particle physics, which is already available on Github.
Dark Matter
One of the mysteries of particle physics/cosmology is dark matter. There are several evidences that it should exist, but no one has answered what it is, how it is created, how it interacts with ordinary matter, etc. Recently there has been many developments towards its detection. I work on light dark matter detection, which is more difficult than heavier one because it leaves smaller energy in the detector.
As a side work, I also wrote a code for the demonstration of a new method to calculate Hartree-Fock orbits, which will also be available on Github soon.
Published papers are found at INSPIRE-HEP.
I'm also playing the gutar. ;)