PBHs and GWs from ${\mathbb{T}}^2$-inflation and NANOGrav 15-year data

Seyed Ali Hosseini Mansoori, Fereshteh Felegray, Alireza Talebian +1

In this paper, we propose a novel mechanism in ${\mathbb{T}}^2$-inflation to enhance the power spectrum large enough to seed primordial black holes (PBHs) formation. To accomplish th…