2013/12/31 by Rohoollah Mohammadi, Rohollah Mohammadi · 28 citations
Physics and Astronomy · #Anisotropy #COSMIC cancer database #Circular polarization #Cosmic microwave background #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Neutrino #Neutrino Physics Research #Planck #Polarization (electrochemistry) #Scattering #astro-ph.CO #astro-ph.HE #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-014-3102-1
published in The European Physical Journal C 74(10) (Springer Science+Business Media) · arXiv admin note: text overlap with arXiv:1104.3555 by other authors
arxiv created 2014/08/07 · openalex publication_date 2014/10/01 · arxiv updated 2015/05/08 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The primordial anisotropies of the cosmic microwave background are linearly polarized via Compton-scattering. On the other hand, a primordial degree of circular polarization of the Cosmic Microwave Background is not observationally excluded. In this work, we discuss the generation of the circular polarization of CMB via their scattering on the cosmic neutrino background since the epoch of recombination. We show that the photon–neutrino interaction can transform plane polarization into circular polarization through processes γ +ν → γ +ν and the Stokes- V parameter of CMB has a linear dependence on the wavelength and square dependence on the average bulk velocity of the cosmic neutrino background and also the maximum value of CV is estimated in range of a few nK square.