11 citations · 17 across the 7 of their papers we have counts for
8 papers
Glueballs Confinement and Cosmological Phase Transitions
Adamu Issifu, Julio C. M. Rocha, Francisco A. Brito +1
We develop a unified framework in which the dynamics of a scalar glueball field, originating from phenomenological nonperturbative QCD confinement, simultaneously governs the decon…
The dark sector of the Universe as a scalar field in Horndeski Gravity
M. S. Oliveira, F. A. Brito, J. A. V. Campos
In the present work, we study a subclass of Horndeski gravity characterized by a non-minimal derivative coupling between a scalar field and the Einstein tensor, as a possible alter…
Extra-Dimensional de Broglie-Bohm Quantum Cosmology
F. A. P. Alves-Júnior, A. S. Lemos, F. A. Brito
In this work, we explore the de Broglie-Bohm Quantum Cosmology for a stiff matter, , anisotropic n-dimensional Universe. One begins by considering a Gaussian wave function f…
Intermediate Coupling Regime in Dilatonic Inflationary Universe
Francisco A. Brito, Carlos H. A. B. Borges, Jose A. V. Campos +1
In the present work we study cosmology in dilatonic gravity to address the inflationary phase of the early Universe. As usual, in dilatonic gravity the scalar potential as…
Hunting for extra dimensions in black hole shadows
A. S. Lemos, J. A. V. Campos, F. A. Brito
Observational data of the Sagittarius A* (Sgr A*) shadow released by the Event Horizon Telescope (EHT) are used to investigate eventual deviations in the black hole shadow radius,…
Constraining tachyonic inflationary β-exponential model with Continuous Spontaneous Localization collapse scheme
F. A. Brito, Julio C. M. Rocha, A. S. Lemos +1
In this work, we consider the dynamics of the self-induced collapse of the tachyon wave function in inflationary scenarios. We analyze the modifications on the power spectrum by co…
On the initial state of the universe and the time arrow
Carlos Silva, Renan Aragão, Francisco A. Brito
In this paper, we investigate an important issue addressed by several approaches to quantum cosmology, like that based on loop quantum gravity and string theory: the existence of a…
Brane inflation driven by an arctan potential: CMB constraints and Reheating
R. M. P. Neves, S. Santos da Costa, F. A. Brito +1
We investigate the early universe evolution in the context of brane inflation driven by a supergravity-inspired potential. We performed a slow-roll and a semi-analytical…