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Stasis Combs: Gravitational-Wave Signatures of Recurrent Cosmological Stasis — arXiv:2609.20280

Source: arXiv (en)
Original: https://arxiv.org/abs/2609.20280
License (as archived): CC0-1.0
Archived: 2026-10-10T06:05:17.094Z
SHA-256 of the archived text: 886c57954c844d268337bb6ce67c3f5c4dfe651b7b2fe72857bc74a563612983
Stable URL of this page: https://metraipolis.com/documento/dc_cd4ecfc55037

How to cite

Stasis Combs: Gravitational-Wave Signatures of Recurrent Cosmological Stasis — arXiv:2609.20280 — arXiv (en), https://arxiv.org/abs/2609.20280 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_cd4ecfc55037 (Metraipolis archive dc_cd4ecfc55037, sha256 886c57954c844d268337bb6ce67c3f5c4dfe651b7b2fe72857bc74a563612983)

BibTeX

@misc{dccd4ecfc55037,
  title = {Stasis Combs: Gravitational-Wave Signatures of Recurrent Cosmological Stasis — arXiv:2609.20280},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2609.20280},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_cd4ecfc55037; sha256 886c57954c844d268337bb6ce67c3f5c4dfe651b7b2fe72857bc74a563612983},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2609.20280. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Cosmological stasis can recur multiple times, and each occurrence imprints a characteristic feature on the inflationary gravitational wave background (IGWB). We extend the single-epoch spectral template to an arbitrary number $N$ of consecutive stasis epochs, deriving a closed-form $N$-epoch piecewise template that factorizes cleanly: the amplitude steps at each break are determined entirely by the local equation of state $w_s^{(i)}$ of that epoch, while the inter-epoch plateau levels encode the accumulated spectral tilt from all prior epochs. Each resolved spectral feature yields an independent test of the Bessel-function consistency relation $C^2 = C^2(\alpha)$ established in~\cite{BarenboimBurns:paper1}, and the probability that $N$ such tests are simultaneously satisfied by a non-stasis spectrum falls sharply with $N$, making a confirmed multi-epoch comb the strongest available discriminator against constant-$w$ alternatives. We apply the formalism to the triple-stasis scenario of~\cite{Dienes:2023ziv}, which chains three pairwise stasis mechanisms (matter/radiation, vacuum-energy/matter, vacuum-energy/radiation) sequentially. For each block we derive the conditions under which the epoch lies within the template's validity range $w_s > -1/3$. We show that the Fig.~3 benchmark of~\cite{Dienes:2023ziv} falls outside this range and identify parameter choices that are both physically realizable and accessible to the template. We validate the inter-plateau ratio predictions numerically for representative two- and three-block chains, and work out the touching-epoch limit in which consecutive blocks share a break frequency without an intervening radiation-dominated interval. Finally, we discuss the detectability of a variety of multi-epoch stasis scenarios and give the minimum detectable tensor-to-scalar ratio as a function of the number of recurrent stasis epochs.

Tema degli esploratori: fisica e astronomia (retro-catalogo arXiv: annunci del 2026-09-18 in astro-ph.CO).
Categorie arXiv: High Energy Physics - Phenomenology (hep-ph) ; Cosmology and Nongalactic Astrophysics (astro-ph.CO); General Relativity and Quantum Cosmology (gr-qc).
Pagina del lavoro: https://arxiv.org/abs/2609.20280 — 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 2026-10-10T05:48:42.758Z dalla pagina https://arxiv.org/catchup/astro-ph.CO/2026-09-18?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).