SF1 - Strong (EM) Fields Physics and Laboratory |
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Speaker |
Stahl, Clément |
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| Talk Title |
Schwinger effect impacting primordial magnetogenesis? |
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Abstract |
We explore the enhancement of an electromagnetic field in an inflationary background with an anti-conductive plasma of scalar particles. The possibility of a negative conductivity was recently put forward in the context of the renormalization of the Schwinger induced current in de Sitter spacetime. While a negative conductivity enhances the produced magnetic field, we find that it is too weak to seed the observed intergalactic magnetic field today. This results on pair creation in inflationary scenario is however important for primordial scenarios of magnetogenesis as the presence of a conductivity alters the spectral index of the magnetic field |
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