Joseph P. Johnson

activity

20172025

most citedModified theories of Gravity: Why, How and What?

227 citations · 340 across the 11 of their papers we have counts for

collaborators

Showing 2017Show all

2 papers · 1 filter

gr-qc2017★ 5 cited

Exact inflationary solutions in exponential gravity

Joseph P Johnson, Jose Mathew, S. Shankaranarayanan

We consider a modified gravity model of the form $f (R, ϕ) = R e^{h (ϕ) R}$ , where the strong gravity corrections are taken to all orders and $ϕ$ is a self-interacting massless scalar…

gr-qc2017★ 9 cited

Inflation with $f (R, ϕ)$ in Jordan frame

Jose Mathew, Joseph P Johnson, S. Shankaranarayanan

We consider an $f (R)$ 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…

Exact inflationary solutions in exponential gravity

Inflation with f(R,ϕ) in Jordan frame

Inflation with $f (R, ϕ)$ in Jordan frame