{
  "abstract": "We propose Pathfinder-BP, a recursive decoder for topological quantum codes that combines belief propagation with controlled bit-flipping. An initial BP pass identifies and permanently fixes high-confidence errors. Upon convergence failure, the decoder recursively explores alternative error patterns by tentatively flipping low-confidence variables. On surface codes, Pathfinder-BP achieves a noise threshold and logical error rate comparable to minimum-weight perfect matching (MWPM). A crucial advantage of Pathfinder-BP is its highly parallelizable structure, which yields a worst-case decoding latency quasi-linear in the code distance, making it a suitable candidate for low-latency hardware implementation.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.16375",
  "author_total": 3,
  "authors": [
    {
      "name": "Stefano Tinelli"
    },
    {
      "name": "Francisco Lázaro"
    },
    {
      "name": "Francisco García Herrero"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/93622hd6ya05y.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.16375",
  "fulltext_url": null,
  "id": "93622hd6ya05y",
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  "landing_url": "https://arxiv.org/abs/2610.16375",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cs.IT"
    ],
    [
      "arxiv",
      "math.IT"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "1702|Quantum Computing Algorithms and Architecture"
    ]
  ],
  "openalex": "W7221796266",
  "pdf_url": "https://arxiv.org/pdf/2610.16375",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-12",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/93622hd6ya05y.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:06Z",
      "native_id": "2610.16375",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.16375"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.IT",
      "subfield": "general"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Pathfinder-BP: A Low-Latency Recursive Decoder for Topological Codes",
  "title_text": "Pathfinder-BP: A Low-Latency Recursive Decoder for Topological Codes",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:15Z",
  "url": "https://research.draconitic.com/paper/93622hd6ya05y",
  "venue": "arXiv",
  "versions": []
}