Inflation with a massive vector field nonminimally coupled to gravity

J. P\'aramos; O. Bertolami; V. Bessa

Inflation with a massive vector field nonminimally coupled to gravity

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arxiv 1511.03520 v2 pith:5WCOXFT3 submitted 2015-11-11 gr-qc

O. Bertolami , V. Bessa , J. Páramos This is my paper · ORCID

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keywords fieldvectorcoupledgravityinflationmassivenonminimallyallowing

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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 behaviour of the equations of motion using the methods of the theory of dynamical systems and find exponential inflationary regimes.

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