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

Autor:	Bamba, K., Geng, C. Q., Ho, S. H.
Rok vydání:	2008
Předmět:	Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology High Energy Physics - Theory
Zdroj:	JCAP0811:013,2008
Druh dokumentu:	Working Paper
DOI:	10.1088/1475-7516/2008/11/013
Popis:	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. Comment: 13 pages, 2 figures, additional explanations included
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0806.1856 Zobrazit plný text záznamu View this record from Arxiv