Výsledky vyhledávání - "expansion: deceleration"

A Real Scalar Field Unifying the Early Inflation and the Late Accelerating Expansion of the Universe through a Quadratic Equation of State: The Vacuumon

Autor: Chavanis, Pierre-Henri

Publikováno v: Universe
Universe, 2022, 8 (2), pp.92. ⟨10.3390/universe8020092⟩
Universe; Volume 8; Issue 2; Pages: 92

International audience; In a previous paper we introduced a cosmological model describing the early inflation, the intermediate decelerated expansion, and the late accelerating expansion of the universe in terms of a single barotropic fluid character

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98a8d51e04e5bc0c7f4432e6815ec2ed
https://doi.org/10.3390/universe8020092

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A coupled vacuum energy model producing endless alternated phases of accelerated and decelerated expansion

Autor: Stéphane Fay

Publikováno v: Physical Review D
Physical Review D, American Physical Society, 2017, 95 (8), pp.083504. ⟨10.1103/PhysRevD.95.083504⟩
Phys.Rev.D
Phys.Rev.D, 2017, 95 (8), pp.083504. ⟨10.1103/PhysRevD.95.083504⟩
Phys.Rev.D, 2017, 95 (8), pp.083504. 〈10.1103/PhysRevD.95.083504〉

We consider a flat Universe filled with a vacuum energy coupled to matter and radiation by respectively positive coupling functions $Q_m$ and $Q_r$. We require that these functions be such as Universe exits from inflation to go to a radiation dominat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f4a3511ae354f9add8a51763eb579b8

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