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Publications Influence

Holographic Dark Energy from Fluid/Gravity Duality Constraint by Cosmological Observations

- B. Pourhassan, Alexander Bonilla, M. Faizal, E. Abreu
- Physics
- 6 April 2017

In this paper, we obtain a holographic model of dark energy using the fluid/gravity duality. This model will be dual to a higher dimensional Schwarzschild black hole, and we would use fluid/gravity… Expand

7 1- PDF

THE DUAL EMBEDDING METHOD IN D = 3

- E. Abreu, A. Mendes, C. Neves, W. Oliveira, F. Takakura, L. M. Xavier
- Physics
- 7 March 2007

Improving the beginning steps of a previous work, we settle the dual embedding method (DEM) as an alternative and efficient method for obtaining dual equivalent actions also in D = 3. We show that we… Expand

15 1- PDF

Accelerated cosmos in a nonextensive setup

- H. Moradpour, Alexander Bonilla, E. Abreu, J. Neto
- Physics
- 19 November 2017

Here, we consider a flat FRW universe whose its horizon entropy meets the R\'enyi entropy of non-extensive systems. In our model, the ordinary energy-momentum conservation law is not always valid. By… Expand

42- PDF

Fractional Dirac bracket and quantization for constrained systems.

- E. Abreu, C. Godinho
- Mathematics, Medicine
- Physical review. E, Statistical, nonlinear, and…
- 22 February 2011

So far, it is not well known how to deal with dissipative systems. There are many paths of investigation in the literature and none of them present a systematic and general procedure to tackle the… Expand

15- PDF

New observational constraints on $f(R)$ gravity from cosmic chronometers

- R. C. Nunes, S. Pan, E. Saridakis, E. Abreu
- Physics
- 24 October 2016

We use the recently released cosmic chronometer data and the latest measured value of the local Hubble parameter, combined with the latest joint light curves of Supernovae Type Ia, and Baryon… Expand

40- PDF

Jeans instability criterion from the viewpoint of Kaniadakis' statistics

- E. Abreu, J. Neto, E. M. Barboza, R. C. Nunes
- Physics
- 29 February 2016

In this letter we have derived the Jeans length in the context of the Kaniadakis statistics. We have compared this result with the Jeans length already obtained in the nonextensive Tsallis statistics… Expand

10- PDF

Tsallis and Kaniadakis statistics from the viewpoint of entropic gravity formalism

- E. Abreu, J. Neto, E. M. Barboza, R. C. Nunes
- Physics
- 18 January 2017

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 statistics. This method… Expand

6- PDF

Nonextensive statistics, entropic gravity and gravitational force in a non-integer dimensional space

- E. Abreu, J. Neto, C. Godinho
- Mathematics, Physics
- 28 September 2013

Abstract Based on the connection between Tsallis nonextensive statistics and fractional dimensional space, in this work we have introduced, with the aid of Verlinde’s formalism, the Newton constant… Expand

5- PDF

Non-Gaussian thermostatistical considerations upon the Saha equation

- B. B. Soares, E. M. Barboza, E. Abreu, J. Neto
- Physics, Mathematics
- 27 December 2018

The Saha equation provides the relation between two consecutive ionization state populations, like the Maxwell-Boltzmann velocity distribution of the atoms in a gas ensemble. Saha equation can also… Expand

2- PDF

Oscillations in the Tsallis income distribution

- E. Abreu, N. J. Moura, A. D. Soares, M. B. Ribeiro
- Physics, Economics
- 21 June 2017

Abstract Oscillations in the complementary cumulative distribution function (CCDF) of individual income data have been found in the data of various countries studied by different authors at different… Expand

7- PDF

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