2k citations · 12k across the 281 of their papers we have counts for
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Inflation in non-minimal matter-curvature coupling theories
Cláudio Gomes, João G. Rosa, Orfeu Bertolami
We study inflationary scenarios driven by a scalar field in the presence of a non-minimal coupling between matter and curvature. We show that the Friedmann equation can be signific…
Entangled States and the Gravitational Quantum Well
Rui Alves, Catarina Bastos, Orfeu Bertolami
We study the continuous variable entanglement of a system of two particles under the influence of Earth's gravitational field. We determine a phase-space description of this bipart…
The 1/c expansion of nonminimally coupled curvature-matter gravity model and constraints from planetary precession
Riccardo March, Jorge Páramos, Orfeu Bertolami +1
The effects of a nonminimally coupled curvature-matter model of gravity on a perturbed Minkowski metric are presented. The action functional of the model involves two functions $f^…
White dwarfs in an ungravity-inspired model
Orfeu Bertolami, Hodjat Mariji
An ungravity-inspired model is employed to examine the astrophysical parameters of white dwarf stars (WDs) using polytropic and degenerate gas approaches. Based on the observed pro…
Scalar field dark matter and the Higgs field
Orfeu Bertolami, Catarina Cosme, João G. Rosa
We discuss the possibility that dark matter corresponds to an oscillating scalar field coupled to the Higgs boson. We argue that the initial field amplitude should generically be o…