260 citations · 860 across the 21 of their papers we have counts for
10 papers · 1 filter
Barrow's black hole entropy and the equipartition theorem
Everton M. C. Abreu, Jorge Ananias Neto, Edésio M. Barboza
The Barrow entropy appears from the fact that the black hole surface can be modified due to quantum gravitational outcome. The measure of this perturbation is given by a new expone…
On the equipartition theorem and black holes nongaussian entropies
Everton M. C. Abreu, Jorge Ananias Neto, Edésio M. Barboza +2
In this Letter we have shown that, from the standard thermodynamic functions, the mathematical form of an equipartition theorem may be related to the algebraic expression of a part…
Black holes quasinormal modes, Loop Quantum Gravity Immirzi parameter and nonextensive statistics
Everton M. C. Abreu, Jorge Ananias Neto, Edesio M. Barboza +1
It is argued that, using the black hole area entropy law together with the Boltzmann-Gibbs statistical mechanics and the quasinormal modes of the black holes, it is possible to det…
Tsallis and Kaniadakis statistics from the viewpoint of entropic gravity formalism
Everton M. C. Abreu, Jorge Ananias Neto, Edesio M. Barboza +1
It has been shown in the literature that effective gravitational constants, which are derived from Verlinde's formalism, can be used to introduce the Tsallis and Kaniadakis statist…
Entropic gravity from noncommutative black holes
Rafael C. Nunes, Hooman Moradpour, Edésio M. Barboza +2
In this paper we will investigate the effects of a noncommutative (NC) space-time on the dynamics of the universe. We will generalize the black hole entropy formula for a NC black…
Probing the cosmological viability of non-gaussian statistics
Rafael C. Nunes, Edésio M. Barboza, Everton M. C. Abreu +1
Based on the relationship between thermodynamics and gravity we propose, with the aid of Verlinde's formalism, an alternative interpretation of the dynamical evolution of the Fried…
Thermodynamic aspects of dark energy fluids
Edésio M. Barboza, Rafael C. Nunes, Éverton M. C. Abreu +1
In this paper we have investigated the limits imposed by thermodynamics on a dark energy fluid. We have obtained the heat capacities and the compressibilities for a dark energy flu…
Dark energy models through nonextensive Tsallis' statistics
Rafael da C. Nunes, Edésio M. Barboza, Everton M. C. Abreu +1
The accelerated expansion of the Universe is one of the greatest challenges of modern physics. One candidate to explain this phenomenon is a new field called dark energy. In this w…
Can Quantum Gravitational Effects Influence the Entire History of the Universe?
Edésio M. Barboza, Nivaldo A. Lemos
In this work, a flat Friedmann-Robertson-Walker (FRW) universe with dust and a cosmological constant is quantized. By means of a canonical transformation, the classical Hamiltonian…
Does the Big Rip survive quantization?
Edesio M. Barboza, Nivaldo A. Lemos
It is known that certain quantum cosmological models present quantum behavior for large scale factors. Since quantization can suppress past singularities, it is natural to inquire…