37 citations · 88 across the 8 of their papers we have counts for
8 papers
Quantum Cosmology with Dynamical Vacuum in a Minimal-Length Scenario
M. F. Gusson, A. Oakes O. Gonçalves, R. G. Furtado +2
In this work, we consider effects of the dynamical vacuum in quantum cosmology in presence of a minimum length introduced by the GUP (generalized uncertainty principle) related to…
An infinite square-well potential as a limiting case of a finite square-well potential in a minimal-length scenario
André Oakes O. Gonçalves, Michael F. Gusson, Bernardo B. Dilem +4
One of the most widely problem studied in quantum mechanics is of an infinite square-well potential. In a minimal-length scenario its study requires additional care because the bou…
Dirac -function potential in quasiposition representation of a minimal-length scenario
M. F. Gusson, A. Oakes O. Gonçalves, R. O. Francisco +3
A minimal-length scenario can be considered as an effective description of quantum gravity effects. In quantum mechanics the introduction of a minimal length can be accomplished th…
Dynamics of a perfect fluid through velocity potentials with aplication in quantum cosmology
F. G. Alvarenga, R. Fracalossi, R. G. Furtado +1
We review the Eulerian description of hidrodynamics using Seliger-Whitham's formalism (in classical case) and Schutz's formalism (in relativistic case). In these formalisms, the ve…
Falsifying Tree Level String Motivated Bouncing Cosmologies
C. P. Constantinidis, J. C. Fabris, R. G. Furtado +2
The string effective action at tree level contains, in its bosonic sector, the Einstein-Hilbert term, the dilaton, and the axion, besides scalar and gauge fields coming from the Ra…
Regular cosmological solutions in low energy effective action from string theories
J. C. Fabris, R. G. Furtado, Patrick Peter +1
The possibility of obtaining singularity free cosmological solutions in four dimensional effective actions motivated by string theory is investigated. In these effective actions, i…
Singularity-free cosmological solutions in string theories
J. C. Fabris, R. G. Furtado
Singularity-free cosmological solutions may be obtained from the string action at tree level if the dimension of the space-time is greater than 10 and if brane configurations are t…
Regular Bouncing Cosmological Solutions in Effective Actions in Four Dimensions
C. P. Constantinidis, J. C. Fabris, R. G. Furtado +1
We study cosmological scenarios resulting from effective actions in four dimensions which are, under some assumptions, connected with multidimensional, supergravity and string theo…