Production of Magnetic Fields in Early Universe

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Primordial Magnetic Fields
Production
Evolution cosmology
Evolution LSS
Detection of Magnetic Fields
Fig. 1: Froduction of magnetic field from ref. (1).

At small k, the spectra of the fields generated at phase transitions in a causal way follow powerlaw with the slope ns = 2. Inflationary mechanisms typically result in the slope ns = 1. Inflation could in principle generate a scale-invariant spectrum with ns =-3. At large k all the spectra follow a universal slope formed by turbulence.








References:


(1) R.Durrer, A.Neronov, A and A. Rv. 21 (2013) 62 .




dates of project April 1 , 2020 - March 31, 2023 
Acknowledgments 

Financial support of this Project was provided in part by 

- ANR, France

- RSF, Russia