Is inflationary magnetogenesis sensitive to the post-inflationary history ?

Autor:	Dimopoulos, Konstantinos, Ghoshal, Anish, Papanikolaou, Theodoros
Rok vydání:	2024
Předmět:	Astrophysics - Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
Popis:	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 Letter that, surprisingly, the spectral shape of the 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. Comment: 5 pages, plus references
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2412.10367 Zobrazit plný text záznamu View this record from Arxiv