English

Protocols for Creating Anyons and Defects via Gauging

Quantum Physics 2025-11-20 v3 Strongly Correlated Electrons

Abstract

Creating and manipulating anyons and symmetry defects in topological phases, especially those with a non-Abelian character, constitutes a primitive for topological quantum computation. We provide a physical protocol for implementing the ribbon operators of non-Abelian anyons and symmetry defects. We utilize dualities, in particular the Kramers-Wannier or gauging map, which have previously been used to construct topologically ordered ground states by relating them to simpler states. In this work, ribbon operators are implemented by applying a gauging procedure to a lower-dimensional region of such states. This protocol uses sequential unitary circuits or, in certain cases, constant-depth adaptive circuits. We showcase this for anyons and defects in the Z3\mathbb{Z}_3 toric code and S3S_3 quantum double. The general applicability of our method is demonstrated by deriving unitary expressions for ribbon operators of various (twisted) quantum doubles.

Keywords

Cite

@article{arxiv.2411.04181,
  title  = {Protocols for Creating Anyons and Defects via Gauging},
  author = {Anasuya Lyons and Chiu Fan Bowen Lo and Nathanan Tantivasadakarn and Ashvin Vishwanath and Ruben Verresen},
  journal= {arXiv preprint arXiv:2411.04181},
  year   = {2025}
}

Comments

7+18 pages, 3+8 figures. v2: added various references + minor text revisions. v3: additional text revisions for clarity + correction of minor errors in the supplementary

R2 v1 2026-06-28T19:50:34.201Z