Viable inflationary magnetogenesis with helical coupling. (arXiv:1902.05894v1 [astro-ph.CO])
<a href="http://arxiv.org/find/astro-ph/1/au:+Shtanov_Y/0/1/0/all/0/1">Yuri Shtanov</a>
We consider helical coupling to electromagnetism and present a simple model
of evolution of the coupling function leading to a viable inflationary
magnetogenesis. In this scenario, helical magnetic fields of any desirable
strength of order up to $10^{- 7},text{G}$ at the current epoch can be
generated in a narrow spectral band centered at any reasonable wavenumber by
adjusting the model parameters.
We consider helical coupling to electromagnetism and present a simple model
of evolution of the coupling function leading to a viable inflationary
magnetogenesis. In this scenario, helical magnetic fields of any desirable
strength of order up to $10^{- 7},text{G}$ at the current epoch can be
generated in a narrow spectral band centered at any reasonable wavenumber by
adjusting the model parameters.
http://arxiv.org/icons/sfx.gif
