Cosmological bounce and Genesis beyond Horndeski

Journal Article · Tue Aug 01 00:00:00 EDT 2017 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2017/08/038· OSTI ID:22676039

Kolevatov, R.; Mironov, S.; Volkova, V. ^[1]

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1. Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect, 7a, 117312 Moscow (Russian Federation)

We study 'classical' bouncing and Genesis models in beyond Horndeski theory. We give an example of spatially flat bouncing solution that is non-singular and stable throughout the whole evolution. We also provide an example of stable geodesically complete Genesis with similar features. The model is arranged in such a way that the scalar field driving the cosmological evolution initially behaves like full-fledged beyond Horndeski, whereas at late times it becomes a massless scalar field minimally coupled to gravity.

• OSTI ID: 22676039
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2017, Issue 08; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
COMPUTERIZED SIMULATION
COSMOLOGICAL MODELS
EVOLUTION
GRAVITATION
MATHEMATICAL SOLUTIONS
SCALAR FIELDS