Primordial large-scale electromagnetic fields from Gravitoelectromagnetic Inflation

Details Primordial large-scale electromagnetic fields from Gravitoelectromagnetic Inflation Primordial large-scale electromagnetic fields from Gravitoelectromagnetic Inflation

2008-11-06

arxiv.org/abs/0811.0993v3

Phys.Lett.B674:152-159,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Accepted for publication in Physics Letters B

Scientific paper

10.1016/j.physletb.2009.03.027

We investigate the origin and evolution of primordial electric and magnetic fields in the early universe, when the expansion is governed by a cosmological constant $\Lambda_0$. Using the gravitoelectromagnetic inflationary formalism with $A_0=0$, we obtain the power of spectrums for large-scale magnetic fields and the inflaton field fluctuations during inflation. A very important fact is that our formalism is {\em naturally non-conformally invariant}.

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