cohsh/feynman-diagram-generator

A Generator for Self-Energy Feynman Diagrams

Feynman Diagram Generator

• This project is a simple Feynman diagram generator written in C++ using the Boost Graph Library.
• At the moment, only undirected diagrams corresponding to the one-electron self-energy with electron-phonon interactions can be output.

Prerequisites

Ensure you have the following installed on your system:

• CMake (version 3.13 or higher)
• A C++ compiler (e.g., g++, clang)
• Boost library
• Graphviz (for generating graphical output)

Install dependencies

Debian-based systems:

sudo apt update
sudo apt install cmake g++ libboost-all-dev graphviz

Arch Linux:

sudo pacman -S cmake boost graphviz

macOS (with Homebrew):

brew install cmake boost graphviz

Usage

1. Clone the repository:

git clone git@github.com:cohsh/feynman-diagram-generator.git
cd feynman-diagram-generator

2. Create a build directory and run CMake:

cmake -S . -B build

3. Build the project:

make

4. Run the executable ($n=1,2$ is the order of diagrams):

./generate_graph.sh n

This will generate dot/graph_*.dot and png/graph_*.png files.