Inflation of Universe by Nonlinear Electrodynamics

Abstract

Nonlinear electrodynamics with two dimensional parameters is studied. The range of electromagnetic fields when principles of causality, unitarity and the classical stability hold, are obtained. A singularity of the electric field at the center of charges is absent within our model and there are corrections to the Coulomb law as $r\to \infty$. The universe inflation takes place in the background of stochastic magnetic fields. The second stage of the universe evolution is the radiation era so that the graceful exit exists. We estimated the spectral index, the tensor-to-scalar ratio, and the running of the spectral index that are in a rough accord with the PLANCK and WMAP data.

20 pages, 6 figures, accepted in Int.J.Mod.Phys.D

References in corpus (7)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Inflationary universe from perfect fluid and $F(R)$ gravity and its comparison with observational data
• Cosmological Effects of Nonlinear Electrodynamics
• Effective Lagrangian in nonlinear electrodynamics and its properties of causality and unitarity
• Homogeneous and isotropic cosmologies with nonlinear electromagnetic radiation
• Nonlinear Electromagnetic Fields As a Source of Universe Acceleration
• Universe Inflation Based on Nonlinear Electrodynamics

Cited by in corpus (3)

• Entropic corrections to Friedmann equations and bouncing universe due to the zero-point length
• Magnetic black holes in AdS space with nonlinear electrodynamics, extended phase space thermodynamics and Joule--Thomson expansion
• Qualitative analysis of a quasi-magnetic universe