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Weak-field analytical solutions for f(R,L_matt) gravity in a static and spherically symmetric space-time for perfect fluids — arXiv:2611.08955

Source: arXiv (en)
Original: https://arxiv.org/abs/2611.08955
License (as archived): CC0-1.0
Archived: 2026-11-09T22:55:16.490Z
SHA-256 of the archived text: 1f63672d5eb1e925d6327c86d153722472153a5ae0d30c7fefd6117559cb4dce
Stable URL of this page: https://metraipolis.com/documento/dc_bfde185caa03

How to cite

Weak-field analytical solutions for f(R,L_matt) gravity in a static and spherically symmetric space-time for perfect fluids — arXiv:2611.08955 — arXiv (en), https://arxiv.org/abs/2611.08955 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_bfde185caa03 (Metraipolis archive dc_bfde185caa03, sha256 1f63672d5eb1e925d6327c86d153722472153a5ae0d30c7fefd6117559cb4dce)

BibTeX

@misc{dcbfde185caa03,
  title = {Weak-field analytical solutions for f(R,L_matt) gravity in a static and spherically symmetric space-time for perfect fluids — arXiv:2611.08955},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2611.08955},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_bfde185caa03; sha256 1f63672d5eb1e925d6327c86d153722472153a5ae0d30c7fefd6117559cb4dce},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2611.08955. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

We study the weak-field regime of $f(R,\lmatt)$ gravity for a static and spherically symmetric configuration described by a perfect fluid, whose energy density is perturbed about a constant reference value. By means of a weak-field limit expansion about a Minkowski geometric background and under a quasi-Newtonian approximation, we derive and analytically solve the coupled system that governs the gravitational perturbations and the matter variables. The solution contains the long-range Newtonian contribution and Yukawa-type corrections in the temporal and radial components of the metric. In the matter sector, the energy density, the internal energy, and the pressure acquire radial contributions, with a non-zero constant background rest-mass energy density and vanishing background internal energy and pressure. The results show how the non-minimal coupling between curvature and matter jointly modifies the geometry and the fluid in the considered regime.

Tema degli esploratori: fisica e astronomia (elenco arXiv gr-qc, nuovi lavori del giorno).
Categorie arXiv: General Relativity and Quantum Cosmology (gr-qc).
Pagina del lavoro: https://arxiv.org/abs/2611.08955 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-11-09T22:50:15.189Z dalla pagina https://arxiv.org/list/gr-qc/new (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).