Das, Subinoy; Maharana, Anshuman; Muia, Francesco
(Oxford University Press on behalf of Royal Astronomical Society, 2022-09)
We present a scenario for fast growth of cosmological perturbations; δ(t) ∼ a(t)s, a(t) being the scale factor, with s > 10 for the numerical examples reported in this article. The basic ingredients of the scenario are an ...