{
  "abstract": "A spin one-half driven only by total-spin operators generates a renewal process in which one interevent time $n^\\ast$ is forbidden while all others occur. No classical hidden Markov model reproduces it with fewer than $1+\\sqrt{n^\\ast}$ states, an unbounded separation whose only resource is one relative phase of $π$. With $K$ amplitudes the same interference yields $K(K{+}1)/2$ decay channels, and for positive weights and generic rates the classical cost is exactly $K(K{+}1)/2$ states. Both are realized by a depth-three circuit whose parameter count does not grow with the register.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.08038",
  "author_total": 1,
  "authors": [
    {
      "name": "Jamal Slim"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8f920cq3dphz5.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.08038",
  "fulltext_url": null,
  "id": "8f920cq3dphz5",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.08038",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.08038",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8f920cq3dphz5.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:22Z",
      "native_id": "2610.08038",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.08038"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Memory Separations from a Collective-Spin Quantum Register",
  "title_text": "Memory Separations from a Collective-Spin Quantum Register",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:22Z",
  "url": "https://research.draconitic.com/paper/8f920cq3dphz5",
  "venue": "arXiv",
  "versions": []
}