309 citations · 2.5k across the 104 of their papers we have counts for
7 papers · 1 filter
Black-hole event horizons-Teleology and Predictivity
Swastik Bhattacharya, S. Shankaranarayanan
General Relativity predicts the existence of black-holes. Access to the complete space-time manifold is required to describe the black-hole. This feature necessitates that black-ho…
Exact inflationary solutions in exponential gravity
Joseph P Johnson, Jose Mathew, S. Shankaranarayanan
We consider a modified gravity model of the form , where the strong gravity corrections are taken to all orders and is a self-interacting massless scalar…
Inflation with in Jordan frame
Jose Mathew, Joseph P Johnson, S. Shankaranarayanan
We consider an action that is non-minimally coupled to a massive scalar field. The model closely resembles scalar-tensor theory and by conformal transformation can be transf…
Quasinormal modes as a distinguisher between general relativity and f(R) gravity
Soham Bhattacharyya, S. Shankaranarayanan
Quasi-Normal Modes (QNM) or ringdown phase of gravitational waves provide critical information about the structure of compact objects like Black Holes. Thus, QNMs can be a tool to…
Vector Galileon and inflationary magnetogenesis
Debottam Nandi, S. Shankaranarayanan
Cosmological inflation provides the initial conditions for the structure formation. However, the origin of large-scale magnetic fields cannot be addressed in this framework. The ke…
Role of spatial higher order derivatives in momentum space entanglement
S. Santhosh Kumar, S. Shankaranarayanan
We study the momentum space entanglement between different energy modes of interacting scalar fields propagating in general (D + 1)-dimensional flat space-time. As opposed to some…