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BIBTEX RIS

Inflation with a massive vector field nonminimally coupled to gravity

2016; American Physical Society; Volume: 93; Issue: 6 Linguagem: Inglês

10.1103/physrevd.93.064002

ISSN

2470-0037

Autores

Orfeu Bertolami, Vitor Bessa, Jorge Páramos,

Tópico(s)

Noncommutative and Quantum Gravity Theories

Resumo

We study the possibility that inflation is driven by a massive vector field with $SO(3)$ global symmetry nonminimally coupled to gravity. From an ${E}^{3}$-invariant Robertson-Walker metric we propose an Ansatz for the vector field, allowing us to study the evolution of the system. We study the behavior of the equations of motion using the methods of the theory of dynamical systems and find exponential inflationary regimes.

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