22 citations · 152 across the 22 of their papers we have counts for
10 papers · 1 filter
Stability analysis of warm quintessential dark energy model
Suratna Das, Saddam Hussain, Debottam Nandi +2
A dynamical system analysis is performed for a model of dissipative quintessential inflation realizing warm inflation at early primordial times and dissipative interations in the d…
Effective field theory of magnetogenesis identify necessary and sufficient conditions
Ashu Kushwaha, Abhishek Naskar, Debottam Nandi +1
At astrophysical and cosmological scales, there is a detectable amount of magnetic field. There are several probable origins for this observed magnetic field, including the possibi…
Stability of a viable non-minimal bounce
Debottam Nandi
The main difficulties in constructing a viable early Universe bouncing model are: to bypass the observational and theoretical \emph{no-go} theorem, to construct a stable non-singul…
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…
Can non-minimal coupling restore the consistency condition in bouncing universes?
Debottam Nandi, L. Sriramkumar
An important property of the three-point functions generated in the early universe is the so-called consistency condition. According to the condition, in the squeezed limit wherein…
Note on stability in conformally connected frames
Debottam Nandi
Dynamics in conformally connected frames are often referred to as 'equivalent'. In the context of cosmology, while the perturbations remain invariant for a single scalar field mode…