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gr-qc2012★ 84 cited
A tensor instability in the Eddington inspired Born-Infeld Theory of Gravity
Celia Escamilla-Rivera, Maximo Banados, Pedro G. Ferreira
In this paper we consider an extension to Eddington's proposal for the gravitational action. We study tensor perturbations of a homogeneous and isotropic space-time in the Eddingto…
gr-qc2010★ 1 cited
Unveiling the tachyon dynamics in the Carrollian limit
Celia Escamilla-Rivera, G. Garcia-Jimenez, O. Obregon
We briefly study the dynamics at classical level of the Carrollian limit, with vanishing speed of light and no possible propagation of signals, for a simply effective action in a f…