11 citations · 11 across the 3 of their papers we have counts for
5 papers
Inflation -- a Comparative Study Amongst Different Modified Gravity Theories
Dalia Saha, Abhik Kumar Sanyal
In the recent years, a host of modified gravity models have been proposed as alternatives to the dark energy. A quantum theory of gravity also requires to modify `General Theory of…
Conflict between some higher-order curvature invariant terms
Dalia Saha, Mohosin Alam, Ranajit Mandal +1
A viable quantum theory does not allow curvature invariant terms of different higher orders to be accommodated in the gravitational action. We show that there is indeed a conflict…
Early universe in view of a modified theory of gravity
Ranajit Mandal, Dalia Saha, Mohosin Alam +1
We study the quantum evolution of the early universe, its semi-classical analogue together with inflationary regime, in view of a generalized modified theory of gravity. The action…
Inflation with scalar-tensor theory of gravity
Dalia Saha, Susmita Sanyal, Abhik Kumar Sanyal
The latest released data from Planck in 2018, put up tighter constraints on inflationary parameters. In the present article, the in-built symmetry of the non-minimally coupled scal…
Probing the early universe with a generalized action
Ranajit Mandal, Dalia Saha, Mohosin Alam +1
Possibly, the most general action in the background of isotropic and homogeneous space-time has been considered to study the quantum evolution of the early universe, apart from a c…