Anderson Localization in the Sky and Cosmological Magnetic Field
Akio Hosoya, Shiho Kobayashi
TL;DR
This paper explores how gravitational density perturbations in the early universe can cause Anderson localization of electromagnetic fields, leading to the generation of cosmological magnetic fields after decoupling.
Contribution
It introduces a novel mechanism linking Anderson localization in the early universe plasma to the origin of cosmological magnetic fields.
Findings
Localized electromagnetic fields emerge in early universe plasma.
Localized electric fields can generate cosmological magnetic fields.
The mechanism connects gravitational perturbations to magnetic field generation.
Abstract
We discuss the Anderson localization of electromagnetic fields in the fluctuating plasma induced by the gravitational density perturbation before the recombination time of the Universe. Randomly distributed localized coherent electromagnetic fields emerge in the thermal equilibrium before the recombination time. We argue that the localized coherent electric fields eventually produce cosmological magnetic fields after the decoupling time.
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