Quantum CSS Codes
This is a software implementation of fault tolerant quantum computation (FTQC) using Calderbank-Steane-Shor (CSS) codes. CSS codes are a family of quantum error correcting codes that are constructed from pairs of classical error correcting codes. They are a special class of stabiliser codes where the stabiliser group can be generated from Pauli terms that are a product of only X or only Z terms.
This project was written for Stanford 269Q. The library is written in Python using Rigetti's Forest SDK. The library includes an interface to generate a CSS code with its stabilisers, Pauli operators, encoding network, etc. given two appropriate binary linear codes. Using the CSS code library, the project also includes a function to rewrite a pyQuil Program into one that implements the same logic in a fault tolerant manner by encoding each qubit with a CSS code.
See module docstrings for documentation.
Installation
You will need:
Install dependencies with $ pipenv install.
Running tests
Run tests with
$ pipenv run python -m unittest