{
  "abstract": "A derivation audit of N. Kumar, \"On the Accelerated Expansion of the Universe\" (Gravit. Cosmol. 30, 85–88, 2024; arXiv:2406.04392v4). The note finds that the passage from eq. (14) to eq. (15) is not established: the identification of null-cut second variations with cosmic-time second derivatives (eq. 18 of the v4 addendum) is assumed rather than derived. It credits the author's clarifications and records withdrawn objections. It is not an empirical test, and it does not claim that universe–antiuniverse models are false.\n\nKeywords - quantum null energy condition; modular Hamiltonian; cosmic acceleration; universe–antiuniverse; derivation audit",
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  "affiliations": [
    "Independent researcher"
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  "article_type": null,
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  "author_total": 1,
  "authors": [
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        0
      ],
      "name": "Michael VanBeuzekom",
      "orcid": "0009-0009-6838-2002"
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  "bibtex": "https://research.draconitic.com/paper/b0p2vw153jhy7.bib",
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  "doi": "10.5281/zenodo.23594915",
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  "pdf_url": "https://zenodo.org/api/records/23594915/files/Kumar_Review_Note_2026-10-23.pdf/content",
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  "published": "2026-10-23",
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  "subjects": [],
  "title": "Review Note: On the derivation in N. Kumar, \"On the Accelerated Expansion of the Universe,\" arXiv:2406.04392",
  "title_text": "Review Note: On the derivation in N. Kumar, \"On the Accelerated Expansion of the Universe,\" arXiv:2406.04392",
  "type": "preprint",
  "updated_at": "2026-11-06T12:21:12Z",
  "url": "https://research.draconitic.com/paper/b0p2vw153jhy7",
  "venue": "Zenodo",
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