De Sitter and power-law solutions in some models of modified gravity

Yi Zhong; Emilio Elizalde

doi:10.1142/S0217732316502217

De Sitter and power-law solutions in some models of modified gravity

Yi Zhong, Emilio Elizalde

Research output: Contribution to journal › Article › Research › peer-review

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Abstract

© 2016 World Scientific Publishing Company. Inspired by some recent works of Lovelock Brans-Dicke (BD) gravity and mimetic gravity, cosmology solutions in extensions of these two modified gravities are investigated. A nonlocal term is added to the Lovelock BD action and Gauss-Bonnet (GB) terms to the mimetic action, correspondingly. de Sitter and power scale factor solutions are then obtained in both theories. They can provide natural new approaches to a more accurate description of the unverse evolution.

Original language	English
Article number	1650221
Journal	Modern Physics Letters A
Volume	31
Issue number	38
DOIs	https://doi.org/10.1142/S0217732316502217
Publication status	Published - 14 Dec 2016

Keywords

Cosmology solution
mimetic
nonlocal

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10.1142/S0217732316502217

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title = "De Sitter and power-law solutions in some models of modified gravity",

abstract = "{\textcopyright} 2016 World Scientific Publishing Company. Inspired by some recent works of Lovelock Brans-Dicke (BD) gravity and mimetic gravity, cosmology solutions in extensions of these two modified gravities are investigated. A nonlocal term is added to the Lovelock BD action and Gauss-Bonnet (GB) terms to the mimetic action, correspondingly. de Sitter and power scale factor solutions are then obtained in both theories. They can provide natural new approaches to a more accurate description of the unverse evolution.",

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author = "Yi Zhong and Emilio Elizalde",

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AU - Elizalde, Emilio

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N2 - © 2016 World Scientific Publishing Company. Inspired by some recent works of Lovelock Brans-Dicke (BD) gravity and mimetic gravity, cosmology solutions in extensions of these two modified gravities are investigated. A nonlocal term is added to the Lovelock BD action and Gauss-Bonnet (GB) terms to the mimetic action, correspondingly. de Sitter and power scale factor solutions are then obtained in both theories. They can provide natural new approaches to a more accurate description of the unverse evolution.

AB - © 2016 World Scientific Publishing Company. Inspired by some recent works of Lovelock Brans-Dicke (BD) gravity and mimetic gravity, cosmology solutions in extensions of these two modified gravities are investigated. A nonlocal term is added to the Lovelock BD action and Gauss-Bonnet (GB) terms to the mimetic action, correspondingly. de Sitter and power scale factor solutions are then obtained in both theories. They can provide natural new approaches to a more accurate description of the unverse evolution.

KW - Cosmology solution

KW - mimetic

KW - nonlocal

U2 - 10.1142/S0217732316502217

DO - 10.1142/S0217732316502217

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JO - Modern Physics Letters A

JF - Modern Physics Letters A

SN - 0217-7323

IS - 38

M1 - 1650221

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De Sitter and power-law solutions in some models of modified gravity

Abstract

Keywords

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