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gr-qc2008
Renormalization of a modified gravity with a quadratic Riemann tensor term
M. Chaves
We consider a modified form of gravity, which has an extra term quadratic in the Riemann tensor. This term mimics a Yang-Mills theory. The other defining characteristic of this gra…
gr-qc2007
The quantization of gravity and the vacuum energy of quantum fields
Max Chaves
We construct a unified covariant derivative that contains the sum of an affine connection and a Yang-Mills field. With it we construct a lagrangian that is invariant both under dif…
gr-qc1998
A Charged Inflaton leaves Behind a Fractal Primeval Structure of Electromagnetic Fields
M. Chaves, G. Padilla
The inflaton field is assumed to possess electric charge. The effect of the charge upon inflation is studied using a parameter ω_0 that acts as a measure of the quantity of inflato…