Symbolic Perturbation Theory (SymPT) is a Python package for symbolic perturbative transformations on quantum systems. SymPT helps compute effective Hamiltonians for both time-independent and time-dependent systems at both operator and matrix level.

Package for quasi-degenerate perturbation theory (mirror)

Implementation of local algorithms within pyscf

A system that aims to track and predict the movements of celestial objects with a fair amount of accuracy.

Numerically solving Schrödinger’s equation for a system of two interacting identical fermions in an infinite potential well using the method of finite differences.

Python module for the evaluation of probability densities and exit rates in a tubular ensemble