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arXiv · 1909.11741

One-loop electromagnetic correlators of SQED in power-law inflation

Dražen Glavan·Gerasimos Rigopoulos
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Abstract

We examine scalar quantum electrodynamics in power-law inflation space-time, and compute the one-loop correction to electric and magnetic field correlators at superhorizon separations. The effect at one-loop descends from the coupling of the vector to the charged scalar current which is greatly enhanced due to gravitational particle production. We conclude that non-perturbative effects must exist due to (i) secular growth, (ii) spatial running, and (iii) infrared sensitivity of the one-loop correction to the correlators. Electric and magnetic correlators exhibit a hierarchy that is due to Faraday's law and accelerated expansion, and must hold non-perturbatively.

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Dražen Glavan, Gerasimos Rigopoulos. 2019-09-25. One-loop electromagnetic correlators of SQED in power-law inflation. https://doi.org/10.1088/1475-7516%2F2021%2F02%2F021

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