Search Publications
Primordial black holes in nonminimal derivative coupling inflation with quartic potential and reheating consideration
Karami, Kayoomars; Heydari, Soma
We investigate the generation of primordial black holes (PBHs) with the aid of gravitationally increased friction mechanism originated from the nonminimal field derivative coupling (NMDC) to gravity framework, with the quartic potential. Applying the coupling parameter as a two-parted function of inflaton field and fine-tuning of five parameter as…
Limits on primordial black holes detectability with Isatis: a BlackHawk tool
Auffinger, Jérémy
Primordial black holes (PBHs) are convenient candidates to explain the elusive dark matter (DM). However, years of constraints from various astronomical observations have constrained their abundance over a wide range of masses, leaving only a narrow window open at
Linear Nash-Greene fluctuations on the evolution of S 8 H 0
Capistrano, Abraão J. S.; Cabral, Luís A.; Marão, José A. P. F. +1 more
We present the perturbation equations in an embedded four space-time from the linear Nash-Greene fluctuations of background metric. In the context of a five-dimensional bulk, we show that the cosmological perturbations are only propagated by the gravitational tensorial field equation. In Newtonian conformal gauge, we study the matter density evolu…