125 citations · 1.2k across the 50 of their papers we have counts for
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Non-thermal Hot Dark Matter from Inflaton/Moduli Decay: The Momentum Distribution and Relaxing the Cosmological Mass Bound
Sukannya Bhattacharya, Subinoy Das, Koushik Dutta +3
Decay of the inflaton or moduli which dominated the energy density of the universe at early times leads to a matter to radiation transition epoch. We consider non-thermal sterile d…
Observational Constraints on Axion(s) Dark Energy with a Cosmological Constant
Ruchika, Shahnawaz A. Adil, Koushik Dutta +2
The present work deals with a dark energy model that has an oscillating scalar field potential along with a cosmological constant (CC). The oscillating part of the potential repres…
Fibre inflation and precision CMB data
Sukannya Bhattacharya, Koushik Dutta, Mayukh Raj Gangopadhyay +2
Generic features of models of inflation obtained from string compactifications are the correlations between the model parameters and the postinflationary evolution of the universe.…