  We consider the particle-antiparticle pairs produced by both a strong
electric field and de Sitter curvature. We investigate in 1 + 1 D the
backreaction of the pairs on the electromagnetic field. To do so we describe
the canonical quantization of an electromagnetic field in de Sitter space and
add in the Einstein-Maxwell equation the fermionic current induced by the
pairs. After solving this equation, we find that the electric field gets either
damped or unaffected depending on the value of the pair mass and the gauge
coupling. No enhancement of the electromagnetic field to support a
magnetogenesis scenario is found. The physical picture is that the Schwinger
pairs locally created screen the production and amplification of the
electromagnetic field. However, if one considers light bosons created by the
Schwinger mechanism, we report a solution to the Einstein-Maxwell equation with
an enhancement of the electromagnetic field. This solution could be a new path
to primordial magnetogenesis.
