Guan package

Guan is an open source python package, dealing with tight-binding models by calculating band structures, density of states, quantum transport, topological invariant, etc. Other trivial functions are also integrated, including file reading/writing, figure plotting, data processing. The official website is https://py.guanjihuan.com.

Installation

pip install --upgrade guan

Usage:

import guan

Summary of API Reference

• basic functions
• Fourier transform
• Hamiltonian of finite size systems
• Hamiltonian of models in the reciprocal space
• band structures and wave functions
• Green functions
• density of states
• quantum transport
• topological invariant
• read and write
• plot figures
• data processing
• others