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arXiv · 2412.10367

Is inflationary magnetogenesis sensitive to the post-inflationary history ?

Konstantinos Dimopoulos·Anish Ghoshal·Theodoros Papanikolaou
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Abstract

Considering inflationary magnetogenesis induced by time-dependent kinetic and axial couplings of a massless Abelian vector boson field breaking the conformal invariance we show in this article that, surprisingly, the spectral shape of the large-scale primordial magnetic field power spectrum is insensitive to the post-inflationary history, namely the barotropic parameter ($w$) and the gauge coupling functions of the post-inflationary era.

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Konstantinos Dimopoulos, Anish Ghoshal, Theodoros Papanikolaou. 2024-12-13. Is inflationary magnetogenesis sensitive to the post-inflationary history ?. https://arxiv.org/abs/2412.10367

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