Challenges in Inflationary Magnetogenesis: Constraints from Strong Coupling, Backreaction and the Schwinger Effect

Ramkishor Sharma, Sandhya Jagannathan, T. R. Seshadri +1

Models of inflationary magnetogenesis with a coupling to the electromagnetic action of the form $f^2{F}_{\mu \nu }{F}^{\mu \nu }$, are known to suffer from several problems. These include the str…