49 citations · 161 across the 10 of their papers we have counts for
6 papers · 1 filter
Revisited apparent horizon entropy and GSL in modified gravity
Soma Heydari, Parastoo Askari, Kayoomars Karami
This work presents a universal and revisited formalism for the entropy of the apparent horizon in modified gravity to investigate the validity of the Generalized Second Law (GSL) o…
Loop quantum inflation with inverse volume corrections in light of ACT data
Farough Parvizi, Soma Heydari, Milad Solbi +1
Within the framework of loop quantum cosmology (LQC), we investigate the effect of inverse volume corrections on the low scale spontaneously broken supersymmetric (SB SUSY) and exp…
Reheating and relic gravitational waves as remedies for degeneracies of non-canonical natural inflation
Karam Bahari, Soma Heydari, Kayoomars Karami
Here, a natural non-canonical inflationary model based on a power-law Lagrangian is investigated. We analyze the scalar spectral index and the tensor-to-scalar ratio $r…
Primordial black holes generated by fast-roll mechanism in non-canonical natural inflation
Soma Heydari, Kayoomars Karami
In this work, a new fast-roll (FR) mechanism to generate primordial black holes (PBHs) and gravitational waves (GWs) in generalized non-canonical natural inflation is introduced. I…
Primordial black holes and secondary gravitational waves from generalized power-law non-canonical inflation with quartic potential
Soma Heydari, Kayoomars Karami
Here, generation of PBHs and secondary GWs from non-canonical inflation with quartic potential have been probed. It is illustrated that, quartic potential in non-canonical setup wi…
Primordial black holes in nonminimal derivative coupling inflation with quartic potential and reheating consideration
Soma Heydari, Kayoomars Karami
We investigate the generation of Primordial Black Holes (PBHs) with the aid of gravitationally increased friction mechanism originated from the NonMinimal field Derivative Coupling…