{
  "abstract": "FINDING: Quantum tunneling is a wave-mechanical penetration of finite potential barriers, with a transmission coefficient exponentially suppressed by barrier width and height; \"impossible\" QFT measurements are possible but non-ideal, revealing fundamental limits on joint nonlocal observables. MATH: Transmission coefficient \\(T \\approx e^{-2\\kappa L}\\), where \\(\\kappa = \\sqrt{2m(V_0-E)}/\\hbar\\). For a rectangular barrier: \\(T = \\left[1 + \\frac{V_0^2 \\sinh^2(\\kappa L)}{4E(V_0-E)}\\right]^{-1}\\). In the semiclassical (WKB) limit: \\(T \\approx \\exp\\left(-\\frac{2}{\\hbar}\\int_{x_1}^{x_2} \\sqrt{2m(V(x)-E)}\\,dx\\right)\\). The \"impossible measurement\" result (arXiv:2311.13644) shows that ideal joint nonlocal measurements in non-relativistic QM would violate no-signaling; only approximate (non-ideal) measurements are consistent, with error bounds scaling as \\(\\epsilon \\sim \\hbar / \\Delta t\\) for spacelike separations. CONNECTION: The exponential decay \\(e^{-2\\kappa L}\\) is structurally identica\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/20hphaggkx86p.bib",
  "cited_by": 0,
  "doi": "10.5281/zenodo.23553648",
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  "id": "20hphaggkx86p",
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  "landing_url": "https://zenodo.org/records/23553648",
  "language": "eng",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
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  "published": "2026-10-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/20hphaggkx86p.ris",
  "sources": [
    {
      "first_seen": "2026-11-05T12:21:20Z",
      "native_id": "23553648",
      "source": "zenodo",
      "url": "https://zenodo.org/records/23553648"
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  ],
  "subjects": [],
  "title": "Quantum Tunneling Limits on Joint Nonlocal Quantum Measurements — E8 Intelligence Research",
  "title_text": "Quantum Tunneling Limits on Joint Nonlocal Quantum Measurements — E8 Intelligence Research",
  "type": "preprint",
  "updated_at": "2026-11-05T12:21:20Z",
  "url": "https://research.draconitic.com/paper/20hphaggkx86p",
  "venue": "Zenodo",
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}