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Showing 2015 · gr-qcShow all
3 papers · 2 filters
gr-qc2015
Introducing quantum effects in classical theories
J. C. Fabris, O. F. Piattella, D. C. Rodrigues +2
In this paper, we explore two different ways of implementing quantum effects in a classical structure. The first one is through an external field. The other one is modifying the cl…
gr-qc2015★ 18 cited
Scalar-Tensor gravity with system-dependent potential and its relation with Renormalization Group extended General Relativity
Davi C. Rodrigues, Bertrand Chauvineau, Oliver F. Piattella
We show that Renormalization Group extensions of the Einstein-Hilbert action for large scale physics are not, in general, a particular case of standard Scalar-Tensor (ST) gravity.…
gr-qc2015★ 3 cited
Scalar-tensor theories with an external scalar
Bertrand Chauvineau, Davi C. Rodrigues, Júlio C. Fabris
Scalar-tensor (ST) gravity is considered in the case where the scalar is an external field. We show that General Relativity (GR) and usual ST gravity are particular cases of the Ex…