Modeling Dark Sector in Horndeski Gravity at First-Order Formalism-Reference-Cited by-同舟云学术

Modeling Dark Sector in Horndeski Gravity at First-Order Formalism

Published:2019-12-17 Issue: Volume:2019 Page:1-8
ISSN:1687-7357
Container-title:Advances in High Energy Physics
language:en
Short-container-title:Advances in High Energy Physics

Author:

Santos F. F.¹,Neves R. M. P.¹,Brito F. A.¹²^ORCID

Affiliation:

1. Departamento de Física, Universidade Federal da Paraíba, Caixa Postal 5008, 58051-970 João Pessoa PB, Brazil

2. Departamento de Física, Universidade Federal de Campina Grande, Caixa Postal 10071, 58109-970 Campina Grande PB, Brazil

Abstract

We investigate a cosmological scenario by finding solutions using first-order formalism in the Horndeski gravity that constrains the superpotential and implies that no free choice of scalar potential is allowed. Despite this, we show that a de Sitter phase at late-time cosmology can be realized, where the dark energy sector can be identified. The scalar field equation of state tends to the cosmological scenario at present time and allows us to conclude that it can simulate the dark energy in the Horndeski gravity.

Funder

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Publisher

Hindawi Limited

Subject

Nuclear and High Energy Physics

Link

http://downloads.hindawi.com/journals/ahep/2019/3486805.pdf

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