Year: 2011
Type: conference-paper
Abstract: We have investigated if the vector field can give rise to an accelerating phase in the early universe. We consider a timelike vector field with a general quadratic kinetic term in order to preserve an isotropic background spacetime. The vector field potential is required to satisfy the three minimal conditions for successful inflation: i) ρ > 0, ii) ρ + 3P < 0, and iii) the slow-roll conditions. As an example, we consider a massive vector potential and a small-field type potential as in scalar driven inflation.
Author: SEOKTAE KOH
Institutions: Chinese Academy of Sciences, Institute of Theoretical Physics
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2019563257