42 citations · 129 across the 14 of their papers we have counts for
5 papers · 1 filter
Generic modification of gravity, late time acceleration and Hubble tension
Mayukh R. Gangopadhyay, Shibesh K. Jas Pacif, M. Sami +1
We consider a scenario of large-scale modification of gravity that does not invoke extra degrees of freedom but includes coupling between baryonic matter and dark matter in the Ein…
The Oscillatory Universe, phantom crossing and the Hubble tension
Mohit K. Sharma, Shibesh Kumar Jas Pacif, Gulmira Yergaliyeva +1
We investigate the validity of cosmological models with an oscillating scale factor in relation to late-time cosmological observations. We show that these models not only meet the…
On the quantum origin of a dark universe
Saurya Das, Mohit Kumar Sharma, Sourav Sur
It has been shown beyond reasonable doubt that the majority (about 95%) of the total energy budget of the universe is given by the dark components, namely Dark Matter and Dark Ener…
Growth of matter perturbations in an interacting dark energy scenario emerging from metric-scalar-torsion couplings
Mohit Kumar Sharma, Sourav Sur
We study the growth of linear matter density perturbations in a modified gravity approach of scalar field couplings with metric and torsion. In the equivalent scalar-tensor formula…
Curvaton: Perturbations and reheating
Mohit Kumar Sharma, Kairat Myrzakulov, Mudhahir Al Ajmi
We study chaotic and runaway potential inflationary models in the curvaton scenario. In particular, we address the issue of large tensor-to-scalar ratio and red-tilted spectrum in…