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Nonlinear Electromagnetic Fields As a Source of Universe Acceleration

TLDR
In this paper, a model of nonlinear electromagnetic fields with a dimensional parameter $\beta$ was proposed and the bound on the parameter was obtained from the PVLAS experiment and the range of the scale factor, when the causality of the model and a classical stability take place, was obtained.
Abstract
A model of nonlinear electromagnetic fields with a dimensional parameter $\beta$ is proposed. From PVLAS experiment the bound on the parameter $\beta$ was obtained. Electromagnetic fields are coupled with the gravitation field and we show that the universe accelerates due to nonlinear electromagnetic fields. The magnetic universe is considered and the stochastic magnetic field is a background. After inflation the universe decelerates and approaches to the radiation era. The range of the scale factor, when the causality of the model and a classical stability take place, was obtained. The spectral index, the tensor-to-scalar ratio, and the running of the spectral index were estimated which are in approximate agreement with the PLANCK, WMAP, and BICEP2 data.

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Journal ArticleDOI

Black hole as a magnetic monopole within exponential nonlinear electrodynamics

TL;DR: In this paper, the authors perform the gauge covariant quantization of the exponential model of nonlinear electrodynamics and obtain the parameters of the model when the black hole is stable.
Journal ArticleDOI

On a Model of Magnetically Charged Black Hole with Nonlinear Electrodynamics

S. I. Kruglov
- 19 May 2018 - 
TL;DR: In this paper, the magnetic mass of the black hole and the metric function were calculated in the Bronnikov model of nonlinear electrodynamics and a second-order phase transition took place and black holes were thermodynamically stable at some range of parameters.
Journal ArticleDOI

Magnetically charged black hole in framework of nonlinear electrodynamics model

TL;DR: In this article, a model of nonlinear electrodynamics is proposed and investigated in general relativity, and the magnetic mass of the black hole is calculated and the metric function is obtained.
Journal ArticleDOI

Corrections to Reissner-Nordstr\"om black hole solution due to exponential nonlinear electrodynamics

TL;DR: In this paper, an exponential model of nonlinear electrodynamics coupled with the gravitational field is analyzed, and it is shown that weak, dominant, and strong energy conditions are satisfied.

Beyond Einstein Gravity A Survey Of Gravitational Theories For Cosmology And Astrophysics

Luca Vogt
TL;DR: In this article, a survey of gravitational theories for cosmology and astrophysics is presented, and the authors describe how people have searched hundreds of times for their chosen books like this beyond einstein gravity, but end up in malicious downloads, rather than reading a good book with a cup of coffee in the afternoon.
References
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Journal ArticleDOI

Planck 2013 results. XVI. Cosmological parameters

Peter A. R. Ade, +327 more
TL;DR: In this paper, the authors present the first cosmological results based on Planck measurements of the cosmic microwave background (CMB) temperature and lensing-potential power spectra, which are extremely well described by the standard spatially-flat six-parameter ΛCDM cosmology with a power-law spectrum of adiabatic scalar perturbations.
Journal ArticleDOI

Planck 2013 results. XVI. Cosmological parameters

Peter A. R. Ade, +262 more
TL;DR: In this paper, the authors present the first results based on Planck measurements of the CMB temperature and lensing-potential power spectra, which are extremely well described by the standard spatially-flat six-parameter LCDM cosmology.
Journal ArticleDOI

Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation

TL;DR: In this paper, the authors show that the tensor-to-scalar ratio r 1 is disfavored regardless of r. They provide a set of "WMAP distance priors, to test a variety of dark energy models.
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