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.
@article{arxiv.1305.0181,
title = {Cosmological magnetic field correlators from blazar induced cascade},
author = {Hiroyuki Tashiro and Tanmay Vachaspati},
journal= {arXiv preprint arXiv:1305.0181},
year = {2013}
}