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| Paper IPM / Physic / 7864 |
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| Abstract: | |
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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 [1]. This inflationary model based on
existence of a speed limit for inflaton field. Generating a mass
for inflaton at scale above the ?IR, 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.
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