{
  "abstract": "High-density nitrogen-vacancy (NV) ensembles in diamond enable sensitive magnetometry. Many quantum-sensing protocols rely on reproducible target fields, allowing repeated measurements under different sensing conditions. In dynamical decoupling (DD) magnetometry, sweeping the interval between $π$ pulses across repeated measurements enables estimation of the frequency and amplitude of an unknown alternating field. For non-repeatable events, however, the same field waveform cannot be reproduced for measurements under different settings. Here we propose NV-based in-sensor quantum reservoir computing (NV-QRC) for sensing such events. Field-driven many-body dynamics and simultaneous fluorescence readout from multiple spatial regions provide a classical classifier with multiple features from a single event. For binary phase classification, we benchmark NV-QRC against DD magnetometry using a single pulse sequence fixed in advance. We show that NV-QRC can retain class-dependent information in regimes where the fixed-DD protocol fails to capture it. These results identify non-repeatable-event sensing as a promising application of quantum reservoir computing.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.06292",
  "author_total": 3,
  "authors": [
    {
      "name": "Daiki Sasaki"
    },
    {
      "name": "Hideaki Kawaguchi"
    },
    {
      "name": "Yuichiro Matsuzaki"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5pywz4jgbjjyg.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.06292",
  "fulltext_url": null,
  "id": "5pywz4jgbjjyg",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.06292",
  "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",
      "quant-ph"
    ],
    [
      "openalex",
      "2505|Diamond and Carbon-based Materials Research"
    ]
  ],
  "openalex": "W7212012652",
  "pdf_url": "https://arxiv.org/pdf/2609.06292",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-05",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5pywz4jgbjjyg.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:48Z",
      "native_id": "2609.06292",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.06292"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Quantum Sensing of Non-Repeatable Events Enhanced by In-Sensor Quantum Reservoir Computing",
  "title_text": "Quantum Sensing of Non-Repeatable Events Enhanced by In-Sensor Quantum Reservoir Computing",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:48Z",
  "url": "https://research.draconitic.com/paper/5pywz4jgbjjyg",
  "venue": "arXiv",
  "versions": []
}