161 citations · 430 across the 15 of their papers we have counts for
6 papers · 1 filter
Primordial cosmic complexity and effects of reheating
Pankaj Saha, Myeonghun Park
We study the effects of the reheating phase on the evolution of complexities for the primordial curvature perturbation using the squeezed formalism. We examine the evolution of the…
Model-independent constraints on inflation and reheating
Pankaj Saha
Reheating connects the inflationary universe to the radiation-dominated evolution of standard Big Bang cosmology. Due to the lack of direct observations, we rely on indirect bounds…
PBHs and secondary GWs from ultra slow roll and punctuated inflation
H. V. Ragavendra, Pankaj Saha, L. Sriramkumar +1
[Abridged] The primordial scalar power spectrum is well constrained on large scales, primarily by the observations of the anisotropies in the cosmic microwave background (CMB). Ove…
Accounting for the time evolution of the equation of state parameter during reheating
Pankaj Saha, Sampurn Anand, L. Sriramkumar
One of the important parameters in cosmology is the parameter characterizing the equation of state (EoS) of the sources driving the cosmic expansion. Epochs that are dominated by r…
(P)reheating after minimal Plateau Inflation and constraints from CMB
Debaprasad Maity, Pankaj Saha
We have studied the preheating phase for a class of plateau inflationary model considering the four-legs interaction term between the inflaton and reheating…
Minimal inflationary cosmologies and constraints on reheating
Debaprasad Maity, Pankaj Saha
With the growing consensus on simple power law inflation models not being favored by the PLANCK observation, dynamics for the non-standard form of the inflaton potential gain signi…