Cosmological magnetic field correlators from blazar induced cascade

TL;DR

This paper proposes a novel method to reconstruct cosmological magnetic field correlators, including helical and non-helical components, using cascade photon observations from TeV blazars, aiding in understanding early universe processes.

Contribution

The paper introduces a new observational technique to reconstruct magnetic field correlators from TeV blazar cascade photons, advancing cosmological magnetic field studies.

Findings

Method enables reconstruction of magnetic field correlators.

Applicable to both helical and non-helical fields.

Enhances understanding of early universe magnetic phenomena.

Abstract

TeV blazars offer an exciting prospect for discovering cosmological magnetic fields and for probing high energy processes, including CP violation, in the early universe. We propose a method for reconstructing both the non-helical and the helical magnetic field correlators using observations of cascade photons from TeV blazars.