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Thermodynamics of arbitrary spherical surfaces in FLRW spacetimes — arXiv:2609.25763

Source: arXiv (en)
Original: https://arxiv.org/abs/2609.25763
License (as archived): CC0-1.0
Archived: 2026-10-09T06:14:25.632Z
SHA-256 of the archived text: b1cff90cda2e2845f46367210bba022c75a3a1309b67241baf3c1dc771fb6b68
Stable URL of this page: https://metraipolis.com/documento/dc_ce99bebbe2a7

How to cite

Thermodynamics of arbitrary spherical surfaces in FLRW spacetimes — arXiv:2609.25763 — arXiv (en), https://arxiv.org/abs/2609.25763 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_ce99bebbe2a7 (Metraipolis archive dc_ce99bebbe2a7, sha256 b1cff90cda2e2845f46367210bba022c75a3a1309b67241baf3c1dc771fb6b68)

BibTeX

@misc{dcce99bebbe2a7,
  title = {Thermodynamics of arbitrary spherical surfaces in FLRW spacetimes — arXiv:2609.25763},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2609.25763},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_ce99bebbe2a7; sha256 b1cff90cda2e2845f46367210bba022c75a3a1309b67241baf3c1dc771fb6b68},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2609.25763. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

In this work, we investigate the thermodynamics of arbitrary spherically symmetric surfaces in non-flat FLRW spacetimes within general relativity. Adopting the gravity-to-thermodynamics perspective, the Clausius relation and the unified first law follow directly from the gravitational field equations and matter dynamics, with a central role played by the matter-flux measure derived from energy-momentum conservation. The cosmological apparent-horizon and event-horizon thermodynamics are both recovered as special cases. In particular, the event-horizon temperatures derived from the gravitational dynamics satisfy both thermodynamic relations without introducing phenomenological modifications, and the corresponding temperature reduces to the Gibbons-Hawking temperature in the de Sitter limit. We further show that previous inconsistencies originate from incompatible temperature prescriptions rather than from any intrinsic deficiency in the thermodynamics of the cosmological event horizon. These results demonstrate that the gravity-thermodynamics correspondence is a generic feature of gravitational dynamics rather than a property unique to causal horizons.

Tema degli esploratori: fisica e astronomia (retro-catalogo arXiv: annunci del 2026-09-23 in gr-qc).
Categorie arXiv: General Relativity and Quantum Cosmology (gr-qc).
Pagina del lavoro: https://arxiv.org/abs/2609.25763 — 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 2026-10-09T05:48:04.495Z dalla pagina https://arxiv.org/catchup/gr-qc/2026-09-23?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).