Nuclear & Particle Physics Seminar

December 4, 2017 - 2:30pm
618 VAN

“Cosmological Seed Magnetic Field From Inflation” by Professor Bharat Ratra, Department of Physics, Kansas State University

Abstract:  A cosmological magnetic field of nG strength on Mpc length scales could be the seed magnetic field needed to explain observed few microG large-scale galactic magnetic fields. I first briefly review the observational and theoretical motivations for such a seed field, two galactic magnetic field amplification models, and some non-inflationary seed field generation scenarios. I then discuss an inflation magnetic field generation model.  I conclude by mentioning possible extensions of this model as well as potentially observable consequences.