212 citations · 349 across the 43 of their papers we have counts for
43 papers
Universality Classes of Interacting Dark Energy from Spontaneous Symmetry Breaking
Pradosh Keshav MV, NS Kavya, Kenath Arun
Phenomenological models of interacting dark energy (IDE) often treat the late-time activation history of the dark sector coupling as an independent function. We show that in confor…
Spontaneous Symmetry Breaking as a Late-Time Trigger for Interacting Dark Energy
Pradosh Keshav MV, NS Kavya, Kenath Arun
Persistent tensions in the Hubble constant (H0) and the matter clustering parameter (S8) motivate late-time new physics that suppresses structure growth without significantly alter…
Loop-corrected scalar potentials and late-time acceleration in f(R) gravity
M. V. Pradosh Keshav, Arun Kenath
We construct an analytic f(R) gravity model that unifies early-time inflation with late-time cosmic acceleration within a single covariant framework. At high curvature, the model r…
Quintessence-Chameleon transitions in anisotropic Kiselev model of neutron stars
M. V. Pradosh Keshav, V. Jithesh, Kenath Arun
We investigate a chameleon scalar field dynamically interacting with a Kiselev-type metric, where the static anisotropic fluid part of the metric is replaced by a density-dependent…
Modification of Newtonian Gravity: Implications for Hot Gas in Clusters and Galactic Angular Momentum
Louise Rebecca, Dominic Sebastian, C Sivaram +1
In view of the negative results from various dark matter detection experiments, we had earlier proposed an alternate theoretical framework through Modification of Newtonian Gravity…
Interacting Dark Energy and Its Implications for Unified Dark Sector
Pradosh Keshav MV, Kenath Arun
Alternative dark energy models were proposed to address the limitation of the standard concordance model. Though different phenomenological considerations of such models are widely…