227 citations · 340 across the 11 of their papers we have counts for
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A test of Einstein's equivalence principle in future VLBI observations
Joseph P Johnson, Susmita Jana, S. Shankaranarayanan
We show that very-long-baseline-interferometry (VLBI) observations of supermassive black holes will allow us to test the fundamental principles of General Relativity (GR). GR is ba…
Modified theories of Gravity: Why, How and What?
S. Shankaranarayanan, Joseph P Johnson
General Relativity (GR) was proven via the direct detection of gravitational waves from the mergers of the binary black holes and binary neutron stars by the Advanced LIGO and Adva…
Can we bypass no-go theorem for Ricci-inverse Gravity?
Indranil Das, Joseph P Johnson, S. Shankaranarayanan
Recently, Amendola et al. proposed a geometrical theory of gravity containing higher-order derivative terms. The authors introduced anticurvature scalar , which is the trace o…
Cosmological perturbations in the interacting dark sector: Mapping fields and fluids
Joseph P Johnson, S. Shankaranarayanan
There is no unique way to describe the dark energy-dark matter interaction, as we have little information about the nature and dynamics of the dark sector. Hence, in many of the ph…
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…