Accelerated expansion of the Universe a la the Stueckelberg mechanism

Abstract

We investigate a cosmological model in which the Stueckelberg fields are non-minimally coupled to the scalar curvature in a gauge invariant manner. We present not only a solution that can be considered in the context of the late time acceleration of the universe but also a solution compatible with the inflationary cosmology. Distinct behaviors of the scalar and vector fields together with the real valued mass gained by the Stueckelberg mechanism lead the universe to go through the two different accelerated expansion phases with a decelerated expansion phase between them. On the other hand, in the solutions we present, if the mass is null then the universe is either static or exhibits a simple power law expansion due to the vector field potential.

14 pages, no figures and tables; improved considerably; matches the version published in JCAP

References in corpus (15)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Dynamics of dark energy
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• Inflationary Universe with Anisotropic Hair
• Vector Inflation
• Instability of anisotropic cosmological solutions supported by vector fields
• Inflation and late-time cosmic acceleration in non-minimal Maxwell-$F(R)$ gravity and the generation of large-scale magnetic fields
• Anisotropic Power-law Inflation
• Anisotropic Inflation from Vector Impurity
• Dark energy as a massive vector field
• Cosmology of the proxy theory to massive gravity
• Perturbations in electromagnetic dark energy
• Density Perturbations in the Universe from Massive Vector Fields