output
19932026
most citedThe Gaia mission

7.1k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2013 · gr-qcShow all

6 papers · 2 filters

gr-qc2013★ 67 cited

Modified Friedmann Equation from Nonminimally Coupled Theories of Gravity

Orfeu Bertolami, Jorge Páramos

In this work we study how nonminimally coupled theories of gravity modify the usual Friedmann equation, and develop two methods to treat these. The ambiguity in the form of the Lag…

gr-qc2013

Minimal extension of General Relativity: alternative gravity model with non-minimal coupling between matter and curvature

Orfeu Bertolami, Jorge Páramos

We examine an extension of General Relativity with an explicit non-minimal coupling between matter and curvature. The purpose of this work is to present an overview of the implicat…

gr-qc2013★ 61 cited

Solar System constraints to nonminimally coupled gravity

Orfeu Bertolami, Riccardo March, Jorge Páramos

We extend the analysis of Chiba, Smith and Erickcek \cite{CSE} of Solar System constraints on gravity to a class of nonminimally coupled (NMC) theories of gravity. These gen…

gr-qc2013★ 5 cited

Homogeneous spherically symmetric bodies with a nonminimal coupling between curvature and matter: the choice of the Lagrangian density for matter

Orfeu Bertolami, Jorge Páramos

In this work we study how a nonminimal coupling between matter and gravity can modify the structure of a homogeneous spherical body. The physical relevance of the adopted Lagrangia…

gr-qc2013★ 1 cited

Zen and the Art of Space-Time Manufacturing

Orfeu Bertolami

We present a general discussion about the so-called emergent properties and discuss whether space-time and gravity can be regarded as emergent features of underlying more fundament…

gr-qc2013★ 79 cited

Cosmological perturbations in theories with non-minimal coupling between curvature and matter

Orfeu Bertolami, Pedro Frazão, Jorge Páramos

In this work, one examines how the presence of a non-minimal coupling between the spacetime curvature and matter affects the evolution of cosmological perturbations around a homoge…