Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Barboza Jr., Edésio M."'
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 exponent $\Delta$. In this letter we have shown that, from the standard math
Externí odkaz:
http://arxiv.org/abs/2005.11609
Autor:
Abreu, Everton M. C., Neto, Jorge Ananias, Barboza Jr., Edésio M., Mendes, Albert C. R., Soares, Bráulio B.
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 particular entropy initially chosen to describe the black hole thermodynam
Externí odkaz:
http://arxiv.org/abs/2002.02435
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 determine univocally the lowest possible value for the spin $j$ in the co
Externí odkaz:
http://arxiv.org/abs/1910.03123
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 consider the partitions functions for both states an
Externí odkaz:
http://arxiv.org/abs/1901.01839
It is well known that, in the context of general relativity, an unknown kind of matter that must violate the strong energy condition is required to explain the current accelerated phase of expansion of the Universe. This unknown component is called d
Externí odkaz:
http://arxiv.org/abs/1810.00269
The standard cosmographic approach consists in performing a series expansion of a cosmological observable around $z=0$ and then using the data to constrain the cosmographic (or kinematic) parameters at present time. Such a procedure works well if app
Externí odkaz:
http://arxiv.org/abs/1704.08089
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 provides a simple alternative to the usual procedure
Externí odkaz:
http://arxiv.org/abs/1701.06898
Autor:
Nunes, Rafael C., Moradpour, Hooman, Barboza Jr., Edésio M., Abreu, Everton M. C., Neto, Jorge Ananias
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 hole. Then, using the entropic gravity formalism, we will show that th
Externí odkaz:
http://arxiv.org/abs/1610.01151
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 obtained in the non-extensive Tsallis statistics and discussed the main differences between these two mode
Externí odkaz:
http://arxiv.org/abs/1603.00296
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 Friedmann-Robertson-Walker Universe. This description takes into account th
Externí odkaz:
http://arxiv.org/abs/1509.05059