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astro-ph.CO2016★ 27 cited
When is the growth index constant?
David Polarski, Alexei A. Starobinsky, Hector Giacomini
The growth index is an interesting tool to assess the phenomenology of dark energy (DE) models, in particular of those beyond general relativity (GR). We investigate the possib…
gr-qc2016★ 18 cited
Bouncing Universes in Scalar-Tensor Gravity Around Conformal Invariance
B. Boisseau, H. Giacomini, D. Polarski
We consider the possibility to produce a bouncing universe in the framework of scalar-tensor gravity when the scalar field has a nonconformal coupling to the Ricci scalar. We prove…