English

Low Depth Color Code Circuits with CXSWAP gate

Quantum Physics 2025-10-22 v2

Abstract

We present two new types of syndrome extraction circuits for the color code. Our first construction, which after [M. McEwen, D. Bacon, and C. Gidney, Quantum 7, 1172 (2023)] we call the semi-wiggling color code, promises to mitigate leakage errors by periodically interchanging the roles of bulk data and measurement qubits. The second construction reduces circuit depth relative to [C. Gidney and C. Jones, arXiv:2312.08813 (2023)] by employing the CXSWAP gate instead of CNOT. This optimization leads to 10%\sim 10\% improvement in teraquop footprint under the uniform error model with the physical error rate p=0.1%p=0.1\%.

Keywords

Cite

@article{arxiv.2510.00370,
  title  = {Low Depth Color Code Circuits with CXSWAP gate},
  author = {Satoshi Yoshida and Craig Gidney and Matt McEwen and Adam Zalcman},
  journal= {arXiv preprint arXiv:2510.00370},
  year   = {2025}
}

Comments

13 pages, 9 figures

R2 v1 2026-07-01T06:09:17.167Z