{
  "abstract": "The gravitational entropy proposal of Clifton, Ellis and Tavakol (CET) is based on an effective energy momentum tensor formed by the algebraic decomposition of the 4th order Bel-Robinson tensor. So far the application of the CET proposal has been limited to spacetimes of Petrov types D and N for which this algebraic decomposition is unique. To address this limitation we examine in detail the effective energy momentum tensors that result from the algebraic decomposition of the Bel-Robinson tensor in Petrov type I spacetimes. As a test case we apply these results to the Szekeres models of class II, a Petrov type I analytic solution.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Classical and Quantum Gravity (2026)",
  "arxiv": "2605.20611",
  "author_total": 3,
  "authors": [
    {
      "name": "Maharshi Sarma"
    },
    {
      "name": "Sebastián Nájera"
    },
    {
      "name": "Roberto A. Sussman"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cq0x0r68t1ps1.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.20611",
  "fulltext_url": null,
  "id": "cq0x0r68t1ps1",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.20611",
  "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",
      "gr-qc"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2605.20611",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-04",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cq0x0r68t1ps1.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:01Z",
      "native_id": "2605.20611",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.20611"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Gravitational entropy in Petrov Type I spacetimes",
  "title_text": "Gravitational entropy in Petrov Type I spacetimes",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:01Z",
  "url": "https://research.draconitic.com/paper/cq0x0r68t1ps1",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1088/1361-6382/aeaf9d",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}