Multi-phase induced inflation in theories with non-minimal coupling to gravity

Journal Article · Sun Jan 01 00:00:00 EST 2017 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2017/01/011· OSTI ID:22680105

Artymowski, Michał ^[1]; Lalak, Zygmunt; Lewicki, Marek ^[2]

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1. Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków (Poland)
2. Institute of Theoretical Physics, Faculty of Physics, University of Warsaw ul. Hoża 69, 00-681 Warszawa (Poland)

In this paper we investigate the induced inflation with two flat regions: one Starobinsky-like plateau in strong coupling regime and one shorter plateau around the saddle point of the Einstein frame potential. This multi-phase inflationary scenario can be used to solve problems of classical cosmology as well as the problem of initial conditions for inflation. The inflation at the saddle-point plateau is consistent with the data and can have arbitrarily low scale. The results can be useful in the context of the Higgs-Axion relaxation and in a certain limit they are equivalent to the α-attractors.

• OSTI ID: 22680105
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2017, Issue 01; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ATTRACTORS
AXIONS
COSMOLOGY
COUPLING
GRAVITATION
HIGGS BOSONS
HIGGS MODEL
INFLATIONARY UNIVERSE
RELAXATION
STRONG-COUPLING MODEL