Realistic Cyclic Magnetic Universe

TL;DR

This paper proposes a cyclic universe model driven by nonlinear magnetic fields, fitting observational data and addressing issues like initial singularity, current acceleration, and the Big Rip.

Contribution

It introduces a novel cyclic cosmological scenario based on nonlinear magnetic fields, integrating multiple fluids and fitting observational data.

Findings

The model successfully reproduces key cosmological observations.

It offers solutions to the initial singularity and Big Rip problems.

The cyclic universe remains consistent with standard cosmological successes.

Abstract

This work presents a complete cyclic cosmological scenario based on nonlinear magnetic field. It is constructed a model composed by five fluids namely baryonic matter, dark matter, radiation, neutrinos and a cosmological magnetic field. The first four fluids are treated in the standard way and the fifth fluid, the magnetic field, is described by a nonlinear electrodynamics. The free parameters are fitted by observational data (SNIa, CMB, extragalactic magnetic fields, etc) and by simple theoretical considerations. As result arises a cyclic cosmological model which preserves the main successes of standard big bang model and solve some other problems like the initial singularity, the present acceleration and the Big Rip.