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Generation of Cosmic Magnetic Fields and Gravitational Waves at Neutrino Decoupling | | A.D. Dolgov
; D.Grasso
; | | Date: |
8 Jun 2001 | | Journal: | Phys.Rev.Lett. 88 (2002) 011301 | | Subject: | astro-ph hep-ph | | Abstract: | We show that an inhomogeneous cosmological lepton number may have produced turbulence in the primordial plasma when neutrinos entered (almost) free-streaming regime. This effect may be responsible for the origin of cosmic magnetic fields and give rise to a detectable background of gravitational waves. An existence of inhomogeneous lepton asymmetry could be naturally generated by active-sterile neutrino oscillations or by some versions of Affleck and Dine baryogenesis scenario. | | Source: | arXiv, astro-ph/0106154 | | Services: | Forum | Review | PDF | Favorites | |
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