Non-Abelian bootstrap of primordial magnetism

TL;DR

This paper proposes a mechanism for generating primordial magnetic fields during the electroweak phase transition via a non-Abelian bootstrap process involving W boson currents, resulting in a vortex condensate that evolves into a string-like structure.

Contribution

It introduces a novel non-Abelian bootstrap mechanism for primordial magnetogenesis during the electroweak phase transition, linking vacuum currents to magnetic field generation.

Findings

Magnetic fields are generated as vortex condensates at the electroweak transition.

The resulting magnetic structures become string-like through magnetohydrodynamic evolution.

The mechanism connects non-Abelian gauge dynamics to primordial magnetic field formation.

Abstract

We point out that a primordial magnetic field can be generated in the electroweak phase transition by a non-Abelian bootstrap, where the field is generated by currents of W's, which in turn are extracted from the vacuum by the magnetic field. This magnetic field is produced as a vortex condensate at the electroweak phase transition. It becomes stringy as a consequence of the dynamical evolution due to magnetohydrodynamics.