DBI with Primordial Magnetic Field in the Sky
arXiv:hep-th/0509032 · doi:10.1088/1126-6708/2005/09/004
Abstract
In this paper, we study the generation of a large scale magnetic field with amplitude of order G in an inflationary model which has been introduced in hep-th/0310221. This inflationary model based on existence of a speed limit for inflaton field. Generating a mass for inflaton at scale above the , breaks the conformal triviality of the Maxwell equation and causes to originate a magnetic field during the inflation. The amplitude strongly depends on the details of reheating stage and also depends on the e-foldings parameter N. We find the amplitude of the primordial magnetic field at decoupling time in this inflationary background using late time behavior of the theory.
12 pages, no figure, typos corrected
References in corpus (3)
Cited by in corpus (14)
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