296 citations · 745 across the 17 of their papers we have counts for
17 papers
Non-Gaussian Saha's ionization in Rindler spacetime and the equivalence principle
L. L. Sales, F. C. Carvalho
We investigate the non-Gaussian effects of the Saha equation in Rindler space via Tsallis statistics. By considering a system with cylindrical geometry, we deduce the non-Gaussian…
Constraint on the chemical potentials of hydrogen and proton in recombination
L. L. Sales, F. C. Carvalho, H. T. C. M. Souza
In this paper, we revisit the hydrogen recombination history from a novel perspective: the evolution of chemical potentials. We derive expressions for the chemical potentials, whic…
An Approach to the Primordial Universe Using Colombeau's Simplified Algebra
Jonatas A. Silva, Fábio C. Carvalho, Antonio R. G. Garcia
The proposal "no boundary" of physicists Hartle and Hawking seeks to build a satisfactory model of the early Universe, in a way that avoids the singularity "Big Bang" of the beginn…
Non-Gaussian Effects of the Saha's Ionization in the Early Universe
L. L. Sales, F. C. Carvalho, E. P. Bento +1
Tsallis' thermostatistical has received increasing attention due to its success in describing phenomena that manifest unusual thermodynamic properties. In this context, the general…
Cosmological constant constraints from observation-derived energy condition bounds and their application to bimetric massive gravity
M. E. S. Alves, F. C. Carvalho, J. C. N. de Araujo +2
Among the various possibilities to probe the theory behind the recent accelerated expansion of the universe, the energy conditions (ECs) are of particular interest, since it is pos…
A Bayesian estimate of the CMB-large-scale structure cross-correlation
E. Moura Santos, F. C. Carvalho, M. Penna-Lima +2
Evidences for late-time acceleration of the Universe are provided by multiple probes, such as Type Ia supernovae, the cosmic microwave background (CMB) and large-scale structure (L…