20 citations · 20 across the 2 of their papers we have counts for
8 papers
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…
Two phase reheating: CMB constraints on inflaton and dark matter phenomenology
Md Riajul Haque, Debaprasad Maity, Pankaj Saha
We propose a two-phase reheating scenario where the initial preheating dynamics is described by an effective dynamics followed by the standard perturbative reheating. Some of the i…
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…
Einstein or Jordan: seeking answers from the reheating constraints
Debottam Nandi, Pankaj Saha
Distinguishing conformally coupled frames from the tree-level perturbative observables (scalar spectral index and tensor-to-scalar ratio ) is challenging in cosmolog…
Minimal plateau inflationary cosmologies and constraints from reheating
Debaprasad Maity, Pankaj Saha
With the growing consensus on simple power law inflation models not being favored by the PLANCK observations, dynamics for the non-standard inflation gain significant interest in t…