Stability analysis of de Sitter solutions in models with the Gauss-Bonnet term

Autor:	Pozdeeva, Ekaterina O., Sami, Mohammad, Toporensky, Alexey V., Vernov, Sergey Yu.
Rok vydání:	2019
Předmět:	General Relativity and Quantum Cosmology Astrophysics - Cosmology and Nongalactic Astrophysics High Energy Physics - Theory
Zdroj:	Phys. Rev. D 100, 083527 (2019)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.100.083527
Popis:	We investigate the scalar field dynamics of models with nonminimally coupled scalar fields in the presence of the Gauss-Bonnet term and derive the structure of the effective potential and conditions for stable de Sitter solutions in general. Specializing to specific couplings, we explore the possibility of realizing the stable de Sitter configurations which may have implications for both the early Universe and late time evolution. Comment: 9 pages, 5 figures, some references and comments are added, revised version to appear in Phys. Rev. D
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1905.05085 Zobrazit plný text záznamu View this record from Arxiv