Large-scale magnetic fields from inflation due to Chern-Simons-like effective interaction

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We discuss the generation of large-scale magnetic fields due to the breaking of the conformal invariance in the electromagnetic field through the $CPT$-even dimension-six Chern-Simons-like effective interaction with a fermion current in inflationary cosmology. It is shown that the magnetic fields on 1Mpc scale with the field strength of $\sim 10^{-9}$G at the present time can be generated even for the scale of the effective interaction being the Planck scale.
13 pages, 2 figures, additional explanations included

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Astrophysics, General Relativity and Quantum Cosmology, High Energy Physics - Phenomenology, High Energy Physics - Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/211288

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0806.1856
 http://arxiv.org/abs/0806.1856
 JCAP0811:013,2008
 doi:10.1088/1475-7516/2008/11/013

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arXiv