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Nonminimally coupled Weyl gravity
Cláudio Gomes, Orfeu Bertolami
Weyl gravity in the presence of a non-minimal matter-curvature coupling is presented. Some properties arising from the non-metricity give rise to a second order theory whose vacuum…
A phase-space description of the Earth System in the Anthropocene
O. Bertolami, F. Francisco
Based on a dynamic systems approach to the Landau-Ginzburg model, a phase space description of the Earth System (ES) in the transition to the Anthropocene is presented. It is shown…
Can dark matter drive electroweak symmetry breaking?
Catarina Cosme, João G. Rosa, Orfeu Bertolami
We consider the possibility of an oscillating scalar field accounting for dark matter and dynamically controlling the spontaneous breaking of the electroweak symmetry through a Hig…
Cosmology with SKA
Orfeu Bertolami, Cláudio Gomes
We review some of the major contributions that the Square Kilometer Array (SKA) will provide for Cosmology. We discuss the SKA measurements of the equation of state parameter for d…
Inflation with Planck: a survey of some "exotic" inflationary models
Cláudio Gomes, Orfeu Bertolami, João G. Rosa
We examine some inflationary models based on modifications of gravity in the light of Planck 2015 data, such as the generalised Chaplygin inspired inflation, models based in …
Scale-invariant scalar field dark matter through the Higgs portal
Catarina Cosme, João G. Rosa, O. Bertolami
We discuss the dynamics and phenomenology of an oscillating scalar field coupled to the Higgs boson that accounts for the dark matter in the Universe. The model assumes an underlyi…
A physical framework for the Earth System, the Anthropocene Equation and the Great Acceleration
O. Bertolami, F. Francisco
It is proposed, based on the Landau-Ginzburg Theory of phase transitions, that the transition of the Earth System from the stable conditions of the Holocene to the human driven con…
Quantum cloning and teleportation fidelity in the noncommutative phase-space
P. Leal, A. E. Bernardini, O. Bertolami
The formulation of the no-cloning theorem in the framework of phase-space noncommutative (NC) quantum mechanics (QM) is examined, and its implications for the computation of quantu…