359 citations · 2k across the 45 of their papers we have counts for
5 papers · 1 filter
White Dwarf Critical Tests for Modified Gravity
Rajeev Kumar Jain, Chris Kouvaris, Niklas Grønlund Nielsen
Scalar-tensor theories of gravity can lead to modifications of the gravitational force inside astrophysical objects. We exhibit that compact stars such as white dwarfs provide a un…
On the covariant formalism of the effective field theory of gravity and its cosmological implications
Alessandro Codello, Rajeev Kumar Jain
Following our previous work wherein the leading order effective action was computed in the covariant effective field theory of gravity, here we specialize the effective action to t…
On the covariant formalism of the effective field theory of gravity and leading order corrections
Alessandro Codello, Rajeev Kumar Jain
We construct the covariant effective field theory of gravity as an expansion in inverse powers of the Planck mass, identifying the leading and next-to-leading quantum corrections.…
Generation of scale invariant magnetic fields in bouncing universes
L. Sriramkumar, Kumar Atmjeet, Rajeev Kumar Jain
We consider the generation of primordial magnetic fields in a class of bouncing models when the electromagnetic action is coupled non-minimally to a scalar field that, say, drives…
Radiative Corrections from Heavy Fast-Roll Fields during Inflation
Rajeev Kumar Jain, McCullen Sandora, Martin S. Sloth
We investigate radiative corrections to the inflaton potential from heavy fields undergoing a fast-roll phase transition. We find that a logarithmic one-loop correction to the infl…