{
  "abstract": "FINDING: Fisher's quantum cognition hypothesis centers on nuclear spin-1/2 phosphorus-31 (³¹P) as a qubit substrate, with coherence protected by the Posner molecule (Ca₉(PO₄)₆) — a crystallographic cluster with octahedral symmetry. | MATH: ³¹P has nuclear spin I = 1/2 (two-level system, qubit). Posner molecule: Ca₉(PO₄)₆ — 9 Ca²⁺, 6 PO₄³⁻. The 6 phosphate groups form an octahedral arrangement (O_h point group, order 48). Each Posner carries 6 phosphorus nuclei → 2⁶ = 64-dimensional Hilbert space. Key decoherence shield: the molecule's symmetry forbids certain dipole-dipole couplings between ³¹P spins due to inversion symmetry — the dipolar Hamiltonian vanishes under parity for pairs related by inversion. Fisher's proposed quantum error correction: nuclear spin singlet states (|↑↓⟩ − |↓↑⟩)/√2 have zero net magnetic moment, immune to external field fluctuations. | CONNECTION: The Posner molecule's octahedral symmetry is a crystallographic point group (O_h) — same symmetry class as the cu\n\nAuthor: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com",
  "abstract_shown": true,
  "affiliations": [
    "Independent Researcher, United Kingdom"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 1,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Andrew Stewart Caldin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4zmen0t7d7khe.bib",
  "cited_by": 0,
  "doi": "10.5281/zenodo.23526236",
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  "id": "4zmen0t7d7khe",
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  "landing_url": "https://zenodo.org/records/23526236",
  "language": "eng",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
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  "published": "2026-10-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4zmen0t7d7khe.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T12:21:50Z",
      "native_id": "23526236",
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      "url": "https://zenodo.org/records/23526236"
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  "subjects": [],
  "title": "Quantum Spin-1/2 Phosphorus in Posner Molecules: A 64-Dimensional Qubit Substrate — E8 Intelligence Research",
  "title_text": "Quantum Spin-1/2 Phosphorus in Posner Molecules: A 64-Dimensional Qubit Substrate — E8 Intelligence Research",
  "type": "preprint",
  "updated_at": "2026-11-04T12:21:50Z",
  "url": "https://research.draconitic.com/paper/4zmen0t7d7khe",
  "venue": "Zenodo",
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