English

Transform Arbitrary Good Quantum LDPC Codes into Good Geometrically Local Codes in Any Dimension

Quantum Physics 2024-08-06 v1

Abstract

Geometrically local quantum codes, comprised of qubits and checks embedded in RD\mathbb{R}^D with local check operators, have been a subject of significant interest. A key challenge is identifying the optimal code construction that maximizes both dimension and distance. Recent advancements have produced several constructions, but these either depend on specific good quantum low-density parity-check (qLDPC) codes or are limited to three dimensions. In this work, we introduce a construction that can transform any good qLDPC code into an optimal geometrically local quantum code. Our approach hinges on a novel procedure that extracts a two-dimensional structure from an arbitrary three-term chain complex. We expect that this procedure will find broader applications in areas such as weight reduction and the geometric realization of chain complexes.

Keywords

Cite

@article{arxiv.2408.01769,
  title  = {Transform Arbitrary Good Quantum LDPC Codes into Good Geometrically Local Codes in Any Dimension},
  author = {Xingjian Li and Ting-Chun Lin and Min-Hsiu Hsieh},
  journal= {arXiv preprint arXiv:2408.01769},
  year   = {2024}
}

Comments

25 pages, 15 figures

R2 v1 2026-06-28T18:03:03.850Z