116 citations · 765 across the 35 of their papers we have counts for
16 papers · 1 filter
Reassessing constant-roll Warm Inflation
Sandip Biswas, Kaushik Bhattacharya, Suratna Das
Departing from standard slow-roll conditions is one way of putting the inflationary paradigm to test, and constraining the dynamics of the inflaton field with a constant-rate of ro…
Embedding Ultra slow-roll inflaton dynamics in Warm Inflation
Sandip Biswas, Kaushik Bhattacharya, Suratna Das
Slow-roll of the inflaton field defines the standard dynamics of the inflationary epoch. However, the inflationary system deviates from slow-roll when it encounters an extremely fl…
Running and running of the running of the scalar spectral index in warm inflation
Suratna Das, Rudnei O. Ramos
Next generation of cosmological observations are expected to improve the measurements of several quantities connected to the primordial inflation in the early Universe. These quant…
Lowering tensor-to-scalar ratio by pre-inflationary dynamics
Suratna Das
Pre-inflationary dynamics is known to have left observable imprints via the varied dynamics of the inflaton and the graviton fields during those epochs. It is highlighted here that…
The `unitarity problem' of Higgs inflation in the light of collapse dynamics
Suratna Das
Higgs inflation scenario is one of the most compelling models of inflation at present time. It not only explains the observed data well, but also provides means to include the infl…
A plausible solution to the problem of initial conditions for inflation
Suratna Das, Raghavan Rangarajan
We propose yet another solution to the initial condition problem of inflation associated with homogeneity beyond the horizon at the onset of inflation, in cases where inflation is…