Classical and quantum Coxeter codes: Extending the Reed-Muller family

Nolan J. Coble, Alexander Barg (Feb 21 2025).

Abstract: We introduce a class of binary linear codes that generalizes the Reed-Muller family by replacing the group $\mathbb{Z}_2^m$ with an arbitrary finite Coxeter group. Similar to the Reed-Muller codes, this class is closed under duality and has rate determined by a Gaussian distribution. We also construct quantum CSS codes arising from the Coxeter codes, which admit transversal logical operators outside of the Clifford group.

Arxiv: https://arxiv.org/abs/2502.14746