# Magnetic fields in cosmology

@article{Dolgov2003MagneticFI, title={Magnetic fields in cosmology}, author={Alexander Dolgov}, journal={arXiv: Astrophysics}, year={2003} }

Different mechanisms which may possibly explain existence of magnetic fields on astronomically large scales are described. A recently suggested model of magnetic fields generation slightly before hydrogen recombination is discussed in more detail.

## 13 Citations

Primordial magnetic fields and nonlinear electrodynamics

- Physics
- 2008

The creation of large scale magnetic fields is studied in an inflationary universe where electrodynamics is assumed to be nonlinear. After inflation ends electrodynamics becomes linear and thus the…

Primordial magnetogenesis before recombination

- Physics
- 2016

Abstract The origin of large magnetic fields in the Universe remains currently unknown. We investigate here a mechanism before recombination based on known physics. The source of the vorticity is due…

Resonant magnetic fields from inflation

- Physics
- 2011

We propose a novel scenario to generate primordial magnetic fields during inflation induced by an oscillating coupling of the electromagnetic field to the inflaton. This resonant mechanism has two…

On the cosmological propagation of high energy particles in magnetic fields

- Physics
- 2015

In the present work the connection between high energy particles and cosmic magnetic fields is explored. Particularly, the focus lies on the propagation of ultra-high energy cosmic rays (UHECRs) and…

Large-Scale Magnetic Fields, Dark Energy and QCD.

- Physics
- 2010

Cosmological magnetic fields are being observed with ever increasing correlation lengths, possibly reaching the size of superclusters, therefore disfavoring the conventional picture of generation…

On inflating magnetic fields, and the backreactions thereof

- Physics
- 2011

We investigate in more depth the issue of backreaction in models that attempt at generating cosmological magnetic fields at inflation. By choosing different, physically motivated, parametrisations,…

Cosmological Perturbation Theory and Magnetogenesis

- Physics
- 2014

Cosmological perturbation theory (CPT) is an important tool with which inhomogeneities that seed the observed structure of our universe can be studied. This thesis introduces the subject of CPT and…

Cosmological Magnetogenesis From Extra-dimensional Gauss Bonnet Gravity

- Physics
- 2014

Generation of primordial magnetic fields during inflation typically requires the breaking of conformal invariance of the Electromagnetic action. In this paper this has been achieved naturally in a…

Ferromagnetic properties of charged vector boson condensate

- Physics
- 2010

Bose-Einstein condensation of W bosons in the early universe is studied. It is shown that, in the broken phase of the standard electroweak theory, the condensed W bosons form a ferromagnetic state…

Cosmic electromagnetic fields due to perturbations in the gravitational field

- Physics
- 2012

We use nonlinear gauge-invariant perturbation theory to study the interaction of an inflation produced seed magnetic field with density and gravitational wave perturbations in an almost…

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